Arista Networks Inc. vs F5 Inc.
WatchlistANET / FFIVPrices through Oct 22, 2026
Why these are rivals: #2 and #3 by market value ($231B vs $26B) in Nasdaq's "Computer Communications Equipment" industry; SEC SIC 3576 / 3576 (same major group); #2 and #3 by market value ($231B vs $26B) with SEC SIC 3576 (Computer Communications Equipment).
Rivals, but right now the price gap does not have a measured habit of closing, so there is no paper idea, whatever the gap.
- Co-movement: daily return correlation, 252 sessions: 0.36 (needs >= 0.60)
- Mean reversion: ADF t-statistic of the spread: -2.36 (needs <= -2.873 (5% critical value))
Business leadership
ANET is the larger business
Annual revenue reported to the SEC. Scale, not market share.
| Year | ANET | FFIV | Larger |
|---|---|---|---|
| 2025 | $9.0B | $3.1B | ANET |
| 2024 | $7.0B | $2.8B | ANET |
| 2023 | $5.9B | $2.8B | ANET |
| 2022 | $4.4B | $2.7B | ANET |
| 2021 | $2.9B | $2.6B | ANET |
| 2020 | $2.3B | $2.4B | FFIV |
Revenue lead switched: 2020 to FFIV, 2021 to ANET. Market value: ANET $230.7B, FFIV $25.5B.
Stock leadership
FFIV is ahead now
Measured against the pair's own last 252 trading days.
FFIV leads ANET by 1.95 standard deviations: +24.2% over its usual price ratio. 3 lead switches in the last year.
| Price change | 3 mo | 6 mo | 12 mo |
|---|---|---|---|
| ANET | -1.7% | -0.9% | +17.2% |
| FFIV | +14.8% | +50.1% | +50.4% |
Relationship
Not a measured twin today
Only these tests can make a pair tradable on paper.
- Pass
- Aligned sessions: 2521 (needs >= 254)
- Fail
- Co-movement: daily return correlation, 252 sessions: 0.36 (needs >= 0.60)
- Fail
- Mean reversion: ADF t-statistic of the spread: -2.36 (needs <= -2.873 (5% critical value))
- Pass
- Speed: half-life of the spread, sessions: 16.61 (needs <= 63)
- Data
- Both stocks current
The twins over two years
Prices side by side, and the gap between them
ANET Arista Networks Inc. FFIV F5 Inc.Price index, 100 = 2024-10-18. Tint = which stock is ahead of the pair's usual 1-year relationship (z beyond +/-0.5).
Spread z-score: ANET relative to FFIV, against the 252 sessions before each day. Above 0: ANET ahead; below 0: FFIV ahead. Lines at +/-2 (idea) and +/-4 (stop).
Data table (504 sessions)
| Date | ANET index | FFIV index | z | Ahead |
|---|---|---|---|---|
| 2026-10-22 | 170.22 | 206.95 | -1.95 | FFIV ahead |
| 2026-10-21 | 183.41 | 210.87 | -1.46 | FFIV ahead |
| 2026-10-20 | 180.29 | 210.00 | -1.59 | FFIV ahead |
| 2026-10-19 | 182.04 | 207.28 | -1.40 | FFIV ahead |
| 2026-10-16 | 176.10 | 203.25 | -1.53 | FFIV ahead |
| 2026-10-15 | 184.66 | 209.94 | -1.39 | FFIV ahead |
| 2026-10-14 | 194.45 | 210.25 | -0.94 | FFIV ahead |
| 2026-10-13 | 203.50 | 218.98 | -0.90 | FFIV ahead |
| 2026-10-12 | 209.83 | 217.72 | -0.56 | FFIV ahead |
| 2026-10-09 | 215.66 | 220.63 | -0.43 | near the usual relationship |
| 2026-10-08 | 209.92 | 212.28 | -0.33 | near the usual relationship |
| 2026-10-07 | 214.76 | 214.57 | -0.22 | near the usual relationship |
| 2026-10-06 | 214.29 | 216.02 | -0.30 | near the usual relationship |
| 2026-10-05 | 205.87 | 210.84 | -0.44 | near the usual relationship |
| 2026-10-02 | 206.32 | 208.77 | -0.33 | near the usual relationship |
| 2026-10-01 | 203.47 | 204.01 | -0.24 | near the usual relationship |
| 2026-09-30 | 202.58 | 204.70 | -0.31 | near the usual relationship |
| 2026-09-29 | 201.85 | 201.43 | -0.20 | near the usual relationship |
| 2026-09-28 | 203.90 | 200.28 | -0.05 | near the usual relationship |
| 2026-09-25 | 205.52 | 203.72 | -0.13 | near the usual relationship |
| 2026-09-24 | 204.68 | 205.33 | -0.24 | near the usual relationship |
| 2026-09-23 | 202.46 | 209.67 | -0.53 | FFIV ahead |
| 2026-09-22 | 204.17 | 208.45 | -0.40 | near the usual relationship |
| 2026-09-21 | 204.40 | 206.96 | -0.32 | near the usual relationship |
| 2026-09-18 | 198.40 | 198.65 | -0.22 | near the usual relationship |
| 2026-09-17 | 198.54 | 199.84 | -0.27 | near the usual relationship |
| 2026-09-16 | 196.56 | 194.77 | -0.12 | near the usual relationship |
| 2026-09-15 | 191.88 | 198.12 | -0.49 | near the usual relationship |
| 2026-09-14 | 186.88 | 189.21 | -0.32 | near the usual relationship |
| 2026-09-11 | 198.60 | 189.31 | +0.23 | near the usual relationship |
| 2026-09-10 | 188.05 | 183.23 | +0.04 | near the usual relationship |
| 2026-09-09 | 191.97 | 186.05 | +0.09 | near the usual relationship |
| 2026-09-08 | 193.99 | 179.15 | +0.53 | ANET ahead |
| 2026-09-04 | 192.82 | 179.54 | +0.46 | near the usual relationship |
| 2026-09-03 | 190.49 | 180.32 | +0.31 | near the usual relationship |
| 2026-09-02 | 185.17 | 179.82 | +0.08 | near the usual relationship |
| 2026-09-01 | 188.32 | 181.96 | +0.13 | near the usual relationship |
| 2026-08-31 | 194.72 | 187.20 | +0.18 | near the usual relationship |
| 2026-08-28 | 194.41 | 181.28 | +0.46 | near the usual relationship |
| 2026-08-27 | 200.09 | 188.62 | +0.37 | near the usual relationship |
| 2026-08-26 | 201.24 | 183.74 | +0.66 | ANET ahead |
| 2026-08-25 | 189.99 | 175.99 | +0.54 | ANET ahead |
| 2026-08-24 | 187.21 | 174.29 | +0.50 | ANET ahead |
| 2026-08-21 | 187.71 | 176.86 | +0.40 | near the usual relationship |
| 2026-08-20 | 182.84 | 173.71 | +0.33 | near the usual relationship |
| 2026-08-19 | 185.52 | 175.94 | +0.35 | near the usual relationship |
| 2026-08-18 | 192.22 | 180.99 | +0.41 | near the usual relationship |
| 2026-08-17 | 200.80 | 181.87 | +0.77 | ANET ahead |
| 2026-08-14 | 197.83 | 185.40 | +0.47 | near the usual relationship |
| 2026-08-13 | 202.61 | 191.28 | +0.41 | near the usual relationship |
| 2026-08-12 | 209.45 | 194.48 | +0.56 | ANET ahead |
| 2026-08-11 | 196.87 | 190.36 | +0.20 | near the usual relationship |
| 2026-08-10 | 190.57 | 188.52 | +0.00 | near the usual relationship |
| 2026-08-07 | 187.73 | 184.03 | +0.08 | near the usual relationship |
| 2026-08-06 | 191.36 | 189.93 | -0.02 | near the usual relationship |
| 2026-08-05 | 196.33 | 189.13 | +0.25 | near the usual relationship |
| 2026-08-04 | 189.56 | 189.56 | -0.07 | near the usual relationship |
| 2026-08-03 | 183.97 | 186.84 | -0.20 | near the usual relationship |
| 2026-07-31 | 179.45 | 185.11 | -0.33 | near the usual relationship |
| 2026-07-30 | 170.17 | 178.75 | -0.48 | near the usual relationship |
| 2026-07-29 | 157.18 | 177.92 | -1.12 | FFIV ahead |
| 2026-07-28 | 168.87 | 185.52 | -0.86 | FFIV ahead |
| 2026-07-27 | 169.91 | 187.59 | -0.89 | FFIV ahead |
| 2026-07-24 | 173.12 | 180.34 | -0.39 | near the usual relationship |
| 2026-07-23 | 175.73 | 178.44 | -0.16 | near the usual relationship |
| 2026-07-22 | 174.00 | 184.21 | -0.50 | FFIV ahead |
| 2026-07-21 | 173.71 | 187.94 | -0.68 | FFIV ahead |
| 2026-07-20 | 168.51 | 189.41 | -0.99 | FFIV ahead |
| 2026-07-17 | 167.77 | 188.11 | -0.96 | FFIV ahead |
| 2026-07-16 | 167.72 | 185.49 | -0.84 | FFIV ahead |
| 2026-07-15 | 171.06 | 193.80 | -1.02 | FFIV ahead |
| 2026-07-14 | 181.66 | 198.30 | -0.71 | FFIV ahead |
| 2026-07-13 | 180.25 | 193.56 | -0.57 | FFIV ahead |
| 2026-07-10 | 186.03 | 197.90 | -0.48 | near the usual relationship |
| 2026-07-09 | 183.77 | 197.87 | -0.57 | FFIV ahead |
| 2026-07-08 | 180.15 | 192.73 | -0.50 | FFIV ahead |
| 2026-07-07 | 165.63 | 191.79 | -1.11 | FFIV ahead |
| 2026-07-06 | 172.42 | 192.68 | -0.82 | FFIV ahead |
| 2026-07-02 | 159.19 | 187.67 | -1.21 | FFIV ahead |
| 2026-07-01 | 165.79 | 195.04 | -1.18 | FFIV ahead |
| 2026-06-30 | 169.03 | 191.26 | -0.88 | FFIV ahead |
| 2026-06-29 | 163.28 | 188.78 | -1.03 | FFIV ahead |
| 2026-06-26 | 156.82 | 181.41 | -1.02 | FFIV ahead |
| 2026-06-25 | 164.63 | 177.49 | -0.48 | near the usual relationship |
| 2026-06-24 | 160.94 | 176.93 | -0.61 | FFIV ahead |
| 2026-06-23 | 161.39 | 179.11 | -0.65 | FFIV ahead |
| 2026-06-22 | 173.69 | 179.91 | -0.16 | near the usual relationship |
| 2026-06-18 | 168.83 | 177.25 | -0.24 | near the usual relationship |
| 2026-06-17 | 164.11 | 176.97 | -0.41 | near the usual relationship |
| 2026-06-16 | 167.17 | 178.80 | -0.34 | near the usual relationship |
| 2026-06-15 | 168.25 | 182.46 | -0.42 | near the usual relationship |
| 2026-06-12 | 162.43 | 182.16 | -0.64 | FFIV ahead |
| 2026-06-11 | 155.62 | 181.09 | -0.86 | FFIV ahead |
| 2026-06-10 | 151.00 | 179.68 | -1.00 | FFIV ahead |
| 2026-06-09 | 151.40 | 181.73 | -1.05 | FFIV ahead |
| 2026-06-08 | 155.62 | 182.17 | -0.87 | FFIV ahead |
| 2026-06-05 | 153.50 | 180.87 | -0.90 | FFIV ahead |
| 2026-06-04 | 165.18 | 187.91 | -0.67 | FFIV ahead |
| 2026-06-03 | 173.50 | 186.53 | -0.30 | near the usual relationship |
| 2026-06-02 | 174.46 | 188.12 | -0.31 | near the usual relationship |
| 2026-06-01 | 169.83 | 181.91 | -0.26 | near the usual relationship |
| 2026-05-29 | 158.68 | 176.32 | -0.47 | near the usual relationship |
| 2026-05-28 | 154.50 | 176.31 | -0.62 | FFIV ahead |
| 2026-05-27 | 153.54 | 178.48 | -0.72 | FFIV ahead |
| 2026-05-26 | 157.22 | 182.55 | -0.71 | FFIV ahead |
| 2026-05-22 | 153.26 | 181.00 | -0.80 | FFIV ahead |
| 2026-05-21 | 147.85 | 176.43 | -0.85 | FFIV ahead |
| 2026-05-20 | 139.79 | 175.84 | -1.16 | FFIV ahead |
| 2026-05-19 | 140.88 | 176.34 | -1.12 | FFIV ahead |
| 2026-05-18 | 141.00 | 174.61 | -1.05 | FFIV ahead |
| 2026-05-15 | 141.26 | 166.72 | -0.77 | FFIV ahead |
| 2026-05-14 | 147.07 | 167.64 | -0.56 | FFIV ahead |
| 2026-05-13 | 139.99 | 164.34 | -0.72 | FFIV ahead |
| 2026-05-12 | 141.83 | 163.22 | -0.60 | FFIV ahead |
| 2026-05-11 | 135.75 | 164.75 | -0.90 | FFIV ahead |
| 2026-05-08 | 141.06 | 162.79 | -0.60 | FFIV ahead |
| 2026-05-07 | 141.04 | 158.64 | -0.45 | near the usual relationship |
| 2026-05-06 | 146.33 | 156.81 | -0.17 | near the usual relationship |
| 2026-05-05 | 169.37 | 156.29 | +0.67 | ANET ahead |
| 2026-05-04 | 171.76 | 151.71 | +0.92 | ANET ahead |
| 2026-05-01 | 171.84 | 148.61 | +1.05 | ANET ahead |
| 2026-04-30 | 171.85 | 148.93 | +1.04 | ANET ahead |
| 2026-04-29 | 167.84 | 150.89 | +0.84 | ANET ahead |
| 2026-04-28 | 164.47 | 139.69 | +1.16 | ANET ahead |
| 2026-04-27 | 171.61 | 136.90 | +1.50 | ANET ahead |
| 2026-04-24 | 176.03 | 139.40 | +1.55 | ANET ahead |
| 2026-04-23 | 171.69 | 137.89 | +1.47 | ANET ahead |
| 2026-04-22 | 176.85 | 143.08 | +1.44 | ANET ahead |
| 2026-04-21 | 172.00 | 145.10 | +1.22 | ANET ahead |
| 2026-04-20 | 166.02 | 144.38 | +1.07 | ANET ahead |
| 2026-04-17 | 163.41 | 142.94 | +1.05 | ANET ahead |
| 2026-04-16 | 160.21 | 141.65 | +1.00 | ANET ahead |
| 2026-04-15 | 153.56 | 137.53 | +0.94 | ANET ahead |
| 2026-04-14 | 153.60 | 135.73 | +1.01 | ANET ahead |
| 2026-04-13 | 151.26 | 137.06 | +0.89 | ANET ahead |
| 2026-04-10 | 146.62 | 133.26 | +0.88 | ANET ahead |
| 2026-04-09 | 145.32 | 135.46 | +0.76 | ANET ahead |
| 2026-04-08 | 144.35 | 140.13 | +0.57 | ANET ahead |
| 2026-04-07 | 132.98 | 142.13 | +0.11 | near the usual relationship |
| 2026-04-06 | 125.62 | 141.46 | -0.14 | near the usual relationship |
| 2026-04-02 | 126.05 | 139.48 | -0.05 | near the usual relationship |
| 2026-04-01 | 124.23 | 135.94 | +0.01 | near the usual relationship |
| 2026-03-31 | 122.17 | 133.04 | +0.04 | near the usual relationship |
| 2026-03-30 | 115.55 | 128.62 | -0.05 | near the usual relationship |
| 2026-03-27 | 120.17 | 129.66 | +0.10 | near the usual relationship |
| 2026-03-26 | 121.94 | 134.79 | -0.01 | near the usual relationship |
| 2026-03-25 | 134.34 | 136.96 | +0.37 | near the usual relationship |
| 2026-03-24 | 130.15 | 132.90 | +0.37 | near the usual relationship |
| 2026-03-23 | 135.20 | 133.23 | +0.54 | ANET ahead |
| 2026-03-20 | 130.57 | 130.72 | +0.47 | near the usual relationship |
| 2026-03-19 | 135.58 | 133.48 | +0.56 | ANET ahead |
| 2026-03-18 | 135.39 | 129.76 | +0.69 | ANET ahead |
| 2026-03-17 | 132.41 | 131.52 | +0.53 | ANET ahead |
| 2026-03-16 | 134.68 | 130.46 | +0.65 | ANET ahead |
| 2026-03-13 | 132.91 | 133.03 | +0.51 | ANET ahead |
| 2026-03-12 | 133.36 | 129.98 | +0.63 | ANET ahead |
| 2026-03-11 | 137.54 | 133.12 | +0.67 | ANET ahead |
| 2026-03-10 | 138.93 | 131.57 | +0.77 | ANET ahead |
| 2026-03-09 | 136.49 | 131.20 | +0.71 | ANET ahead |
| 2026-03-06 | 132.23 | 131.61 | +0.56 | ANET ahead |
| 2026-03-05 | 138.71 | 130.42 | +0.82 | ANET ahead |
| 2026-03-04 | 134.16 | 131.56 | +0.64 | ANET ahead |
| 2026-03-03 | 123.98 | 129.46 | +0.37 | near the usual relationship |
| 2026-03-02 | 128.66 | 127.83 | +0.60 | ANET ahead |
| 2026-02-27 | 132.84 | 124.77 | +0.85 | ANET ahead |
| 2026-02-26 | 129.60 | 127.61 | +0.65 | ANET ahead |
| 2026-02-25 | 132.23 | 128.08 | +0.73 | ANET ahead |
| 2026-02-24 | 128.13 | 125.08 | +0.70 | ANET ahead |
| 2026-02-23 | 126.80 | 123.93 | +0.70 | ANET ahead |
| 2026-02-20 | 132.13 | 128.01 | +0.74 | ANET ahead |
| 2026-02-19 | 136.55 | 128.38 | +0.88 | ANET ahead |
| 2026-02-18 | 138.85 | 127.69 | +0.99 | ANET ahead |
| 2026-02-17 | 141.87 | 124.42 | +1.21 | ANET ahead |
| 2026-02-13 | 140.89 | 125.96 | +1.13 | ANET ahead |
| 2026-02-12 | 134.45 | 120.48 | +1.13 | ANET ahead |
| 2026-02-11 | 139.96 | 129.98 | +0.97 | ANET ahead |
| 2026-02-10 | 142.74 | 129.84 | +1.07 | ANET ahead |
| 2026-02-09 | 141.03 | 128.17 | +1.09 | ANET ahead |
| 2026-02-06 | 136.81 | 127.17 | +0.99 | ANET ahead |
| 2026-02-05 | 128.03 | 124.71 | +0.79 | ANET ahead |
| 2026-02-04 | 129.63 | 127.13 | +0.76 | ANET ahead |
| 2026-02-03 | 138.70 | 126.28 | +1.10 | ANET ahead |
| 2026-02-02 | 137.68 | 129.08 | +0.98 | ANET ahead |
| 2026-01-30 | 141.03 | 126.73 | +1.18 | ANET ahead |
| 2026-01-29 | 147.41 | 129.91 | +1.27 | ANET ahead |
| 2026-01-28 | 149.40 | 134.40 | +1.19 | ANET ahead |
| 2026-01-27 | 145.96 | 124.35 | +1.44 | ANET ahead |
| 2026-01-26 | 143.00 | 122.98 | +1.41 | ANET ahead |
| 2026-01-23 | 135.66 | 119.21 | +1.31 | ANET ahead |
| 2026-01-22 | 137.72 | 120.47 | +1.34 | ANET ahead |
| 2026-01-21 | 126.66 | 120.26 | +0.97 | ANET ahead |
| 2026-01-20 | 126.89 | 119.41 | +1.01 | ANET ahead |
| 2026-01-16 | 129.18 | 123.33 | +0.95 | ANET ahead |
| 2026-01-15 | 129.94 | 125.98 | +0.88 | ANET ahead |
| 2026-01-14 | 124.47 | 122.98 | +0.79 | ANET ahead |
| 2026-01-13 | 129.28 | 124.06 | +0.93 | ANET ahead |
| 2026-01-12 | 122.81 | 124.41 | +0.68 | ANET ahead |
| 2026-01-09 | 122.28 | 123.83 | +0.68 | ANET ahead |
| 2026-01-08 | 123.10 | 123.88 | +0.71 | ANET ahead |
| 2026-01-07 | 129.43 | 123.19 | +0.97 | ANET ahead |
| 2026-01-06 | 131.92 | 124.44 | +1.01 | ANET ahead |
| 2026-01-05 | 136.51 | 125.10 | +1.15 | ANET ahead |
| 2026-01-02 | 132.94 | 118.00 | +1.31 | ANET ahead |
| 2025-12-31 | 130.38 | 117.37 | +1.25 | ANET ahead |
| 2025-12-30 | 131.78 | 119.26 | +1.23 | ANET ahead |
| 2025-12-29 | 133.48 | 119.29 | +1.29 | ANET ahead |
| 2025-12-26 | 131.18 | 121.00 | +1.15 | ANET ahead |
| 2025-12-24 | 130.12 | 120.62 | +1.13 | ANET ahead |
| 2025-12-23 | 130.67 | 119.76 | +1.19 | ANET ahead |
| 2025-12-22 | 130.08 | 119.74 | +1.18 | ANET ahead |
| 2025-12-19 | 130.47 | 118.13 | +1.26 | ANET ahead |
| 2025-12-18 | 124.00 | 119.14 | +0.98 | ANET ahead |
| 2025-12-17 | 121.75 | 117.74 | +0.95 | ANET ahead |
| 2025-12-16 | 125.50 | 118.75 | +1.06 | ANET ahead |
| 2025-12-15 | 125.26 | 120.94 | +0.97 | ANET ahead |
| 2025-12-12 | 124.14 | 120.78 | +0.94 | ANET ahead |
| 2025-12-11 | 133.72 | 121.60 | +1.27 | ANET ahead |
| 2025-12-10 | 131.70 | 118.67 | +1.32 | ANET ahead |
| 2025-12-09 | 129.39 | 118.62 | +1.25 | ANET ahead |
| 2025-12-08 | 128.47 | 114.13 | +1.41 | ANET ahead |
| 2025-12-05 | 127.95 | 114.09 | +1.40 | ANET ahead |
| 2025-12-04 | 127.91 | 111.89 | +1.50 | ANET ahead |
| 2025-12-03 | 127.16 | 110.64 | +1.54 | ANET ahead |
| 2025-12-02 | 126.59 | 109.67 | +1.58 | ANET ahead |
| 2025-12-01 | 127.47 | 109.70 | +1.62 | ANET ahead |
| 2025-11-28 | 130.03 | 109.97 | +1.72 | ANET ahead |
| 2025-11-26 | 127.01 | 109.54 | +1.64 | ANET ahead |
| 2025-11-25 | 124.42 | 110.36 | +1.51 | ANET ahead |
| 2025-11-24 | 121.56 | 108.58 | +1.49 | ANET ahead |
| 2025-11-21 | 116.85 | 107.73 | +1.34 | ANET ahead |
| 2025-11-20 | 119.00 | 103.84 | +1.63 | ANET ahead |
| 2025-11-19 | 124.19 | 102.99 | +1.91 | ANET ahead |
| 2025-11-18 | 122.84 | 104.40 | +1.80 | ANET ahead |
| 2025-11-17 | 126.63 | 105.13 | +1.94 | ANET ahead |
| 2025-11-14 | 130.72 | 107.60 | +2.01 | ANET ahead |
| 2025-11-13 | 129.65 | 109.84 | +1.88 | ANET ahead |
| 2025-11-12 | 134.31 | 110.43 | +2.06 | ANET ahead |
| 2025-11-11 | 134.26 | 109.67 | +2.12 | ANET ahead |
| 2025-11-10 | 136.58 | 110.71 | +2.18 | ANET ahead |
| 2025-11-07 | 133.98 | 112.99 | +1.98 | ANET ahead |
| 2025-11-06 | 133.35 | 114.07 | +1.92 | ANET ahead |
| 2025-11-05 | 139.72 | 113.34 | +2.24 | ANET ahead |
| 2025-11-04 | 152.79 | 110.99 | +2.91 | ANET ahead |
| 2025-11-03 | 156.81 | 114.51 | +2.93 | ANET ahead |
| 2025-10-31 | 156.91 | 116.36 | +2.90 | ANET ahead |
| 2025-10-30 | 157.65 | 118.03 | +2.90 | ANET ahead |
| 2025-10-29 | 161.22 | 118.98 | +3.03 | ANET ahead |
| 2025-10-28 | 155.99 | 123.04 | +2.67 | ANET ahead |
| 2025-10-27 | 156.03 | 133.53 | +2.20 | ANET ahead |
| 2025-10-24 | 153.05 | 137.18 | +1.93 | ANET ahead |
| 2025-10-23 | 152.00 | 138.80 | +1.82 | ANET ahead |
| 2025-10-22 | 145.86 | 136.95 | +1.66 | ANET ahead |
| 2025-10-21 | 145.21 | 137.58 | +1.60 | ANET ahead |
| 2025-10-20 | 145.75 | 136.33 | +1.69 | ANET ahead |
| 2025-10-17 | 142.39 | 138.36 | +1.46 | ANET ahead |
| 2025-10-16 | 145.28 | 135.81 | +1.70 | ANET ahead |
| 2025-10-15 | 142.67 | 152.08 | +0.88 | ANET ahead |
| 2025-10-14 | 138.10 | 157.79 | +0.45 | near the usual relationship |
| 2025-10-13 | 146.72 | 156.63 | +0.87 | ANET ahead |
| 2025-10-10 | 153.33 | 152.54 | +1.30 | ANET ahead |
| 2025-10-09 | 157.44 | 157.42 | +1.27 | ANET ahead |
| 2025-10-08 | 156.58 | 157.52 | +1.24 | ANET ahead |
| 2025-10-07 | 144.57 | 152.09 | +0.96 | ANET ahead |
| 2025-10-06 | 148.76 | 151.28 | +1.17 | ANET ahead |
| 2025-10-03 | 144.78 | 149.43 | +1.08 | ANET ahead |
| 2025-10-02 | 143.74 | 150.44 | +0.99 | ANET ahead |
| 2025-10-01 | 148.53 | 150.49 | +1.20 | ANET ahead |
| 2025-09-30 | 144.99 | 148.61 | +1.13 | ANET ahead |
| 2025-09-29 | 142.66 | 148.36 | +1.04 | ANET ahead |
| 2025-09-26 | 141.79 | 149.38 | +0.96 | ANET ahead |
| 2025-09-25 | 142.35 | 148.98 | +1.00 | ANET ahead |
| 2025-09-24 | 141.93 | 149.20 | +0.97 | ANET ahead |
| 2025-09-23 | 143.37 | 149.30 | +1.03 | ANET ahead |
| 2025-09-22 | 144.68 | 151.83 | +0.99 | ANET ahead |
| 2025-09-19 | 148.87 | 151.14 | +1.20 | ANET ahead |
| 2025-09-18 | 145.93 | 152.57 | +1.02 | ANET ahead |
| 2025-09-17 | 142.13 | 148.89 | +1.00 | ANET ahead |
| 2025-09-16 | 141.45 | 148.86 | +0.98 | ANET ahead |
| 2025-09-15 | 144.71 | 149.03 | +1.11 | ANET ahead |
| 2025-09-12 | 138.70 | 147.91 | +0.90 | ANET ahead |
| 2025-09-11 | 152.28 | 153.85 | +1.24 | ANET ahead |
| 2025-09-10 | 149.97 | 150.22 | +1.30 | ANET ahead |
| 2025-09-09 | 141.20 | 149.63 | +0.95 | ANET ahead |
| 2025-09-08 | 139.31 | 147.43 | +0.97 | ANET ahead |
| 2025-09-05 | 142.14 | 145.25 | +1.19 | ANET ahead |
| 2025-09-04 | 140.47 | 144.54 | +1.15 | ANET ahead |
| 2025-09-03 | 136.70 | 142.10 | +1.09 | ANET ahead |
| 2025-09-02 | 135.19 | 141.04 | +1.07 | ANET ahead |
| 2025-08-29 | 135.87 | 143.99 | +0.97 | ANET ahead |
| 2025-08-28 | 135.55 | 146.40 | +0.85 | ANET ahead |
| 2025-08-27 | 132.61 | 146.10 | +0.72 | ANET ahead |
| 2025-08-26 | 133.60 | 145.10 | +0.81 | ANET ahead |
| 2025-08-25 | 132.38 | 145.16 | +0.74 | ANET ahead |
| 2025-08-22 | 132.59 | 145.87 | +0.72 | ANET ahead |
| 2025-08-21 | 131.37 | 144.49 | +0.72 | ANET ahead |
| 2025-08-20 | 130.82 | 145.20 | +0.66 | ANET ahead |
| 2025-08-19 | 132.12 | 145.06 | +0.72 | ANET ahead |
| 2025-08-18 | 137.35 | 145.42 | +0.95 | ANET ahead |
| 2025-08-15 | 136.62 | 145.00 | +0.93 | ANET ahead |
| 2025-08-14 | 135.80 | 146.45 | +0.83 | ANET ahead |
| 2025-08-13 | 137.32 | 149.80 | +0.76 | ANET ahead |
| 2025-08-12 | 140.55 | 150.11 | +0.89 | ANET ahead |
| 2025-08-11 | 136.97 | 146.27 | +0.89 | ANET ahead |
| 2025-08-08 | 138.49 | 147.95 | +0.89 | ANET ahead |
| 2025-08-07 | 138.59 | 145.87 | +0.98 | ANET ahead |
| 2025-08-06 | 138.09 | 147.71 | +0.88 | ANET ahead |
| 2025-08-05 | 117.53 | 146.58 | -0.08 | near the usual relationship |
| 2025-08-04 | 119.75 | 147.60 | -0.01 | near the usual relationship |
| 2025-08-01 | 116.99 | 141.36 | +0.12 | near the usual relationship |
| 2025-07-31 | 122.61 | 144.11 | +0.28 | near the usual relationship |
| 2025-07-30 | 121.48 | 137.48 | +0.51 | ANET ahead |
| 2025-07-29 | 118.03 | 137.59 | +0.33 | near the usual relationship |
| 2025-07-28 | 116.97 | 138.69 | +0.22 | near the usual relationship |
| 2025-07-25 | 113.71 | 137.65 | +0.08 | near the usual relationship |
| 2025-07-24 | 113.47 | 138.83 | +0.01 | near the usual relationship |
| 2025-07-23 | 112.48 | 138.23 | -0.02 | near the usual relationship |
| 2025-07-22 | 109.23 | 136.94 | -0.15 | near the usual relationship |
| 2025-07-21 | 111.05 | 138.00 | -0.10 | near the usual relationship |
| 2025-07-18 | 111.22 | 138.94 | -0.14 | near the usual relationship |
| 2025-07-17 | 111.42 | 138.10 | -0.10 | near the usual relationship |
| 2025-07-16 | 107.76 | 134.78 | -0.16 | near the usual relationship |
| 2025-07-15 | 106.84 | 133.70 | -0.17 | near the usual relationship |
| 2025-07-14 | 107.83 | 135.25 | -0.19 | near the usual relationship |
| 2025-07-11 | 108.03 | 134.21 | -0.14 | near the usual relationship |
| 2025-07-10 | 105.76 | 137.89 | -0.42 | near the usual relationship |
| 2025-07-09 | 105.75 | 138.99 | -0.48 | near the usual relationship |
| 2025-07-08 | 102.88 | 139.05 | -0.64 | FFIV ahead |
| 2025-07-07 | 100.97 | 137.60 | -0.70 | FFIV ahead |
| 2025-07-03 | 102.01 | 138.00 | -0.66 | FFIV ahead |
| 2025-07-02 | 100.63 | 136.16 | -0.67 | FFIV ahead |
| 2025-07-01 | 98.42 | 136.09 | -0.80 | FFIV ahead |
| 2025-06-30 | 101.80 | 135.33 | -0.58 | FFIV ahead |
| 2025-06-27 | 98.90 | 135.99 | -0.78 | FFIV ahead |
| 2025-06-26 | 101.08 | 132.93 | -0.53 | FFIV ahead |
| 2025-06-25 | 95.83 | 135.37 | -0.94 | FFIV ahead |
| 2025-06-24 | 94.50 | 136.06 | -1.05 | FFIV ahead |
| 2025-06-23 | 91.49 | 135.69 | -1.22 | FFIV ahead |
| 2025-06-20 | 85.82 | 132.03 | -1.44 | FFIV ahead |
| 2025-06-18 | 89.79 | 131.73 | -1.18 | FFIV ahead |
| 2025-06-17 | 89.23 | 132.70 | -1.27 | FFIV ahead |
| 2025-06-16 | 94.62 | 133.50 | -0.99 | FFIV ahead |
| 2025-06-13 | 91.89 | 131.79 | -1.09 | FFIV ahead |
| 2025-06-12 | 95.29 | 134.11 | -0.99 | FFIV ahead |
| 2025-06-11 | 93.74 | 134.67 | -1.11 | FFIV ahead |
| 2025-06-10 | 93.23 | 135.03 | -1.16 | FFIV ahead |
| 2025-06-09 | 96.32 | 135.52 | -1.01 | FFIV ahead |
| 2025-06-06 | 96.77 | 135.84 | -1.01 | FFIV ahead |
| 2025-06-05 | 94.71 | 135.17 | -1.11 | FFIV ahead |
| 2025-06-04 | 94.47 | 135.11 | -1.13 | FFIV ahead |
| 2025-06-03 | 94.03 | 133.64 | -1.10 | FFIV ahead |
| 2025-06-02 | 89.33 | 131.52 | -1.31 | FFIV ahead |
| 2025-05-30 | 86.21 | 131.22 | -1.51 | FFIV ahead |
| 2025-05-29 | 85.94 | 129.02 | -1.45 | FFIV ahead |
| 2025-05-28 | 92.33 | 130.26 | -1.11 | FFIV ahead |
| 2025-05-27 | 92.03 | 131.78 | -1.20 | FFIV ahead |
| 2025-05-23 | 90.75 | 129.71 | -1.20 | FFIV ahead |
| 2025-05-22 | 92.10 | 130.81 | -1.17 | FFIV ahead |
| 2025-05-21 | 91.97 | 131.63 | -1.23 | FFIV ahead |
| 2025-05-20 | 95.19 | 131.92 | -1.05 | FFIV ahead |
| 2025-05-19 | 96.22 | 131.37 | -0.97 | FFIV ahead |
| 2025-05-16 | 95.94 | 131.01 | -0.98 | FFIV ahead |
| 2025-05-15 | 95.59 | 129.98 | -0.97 | FFIV ahead |
| 2025-05-14 | 97.73 | 129.48 | -0.82 | FFIV ahead |
| 2025-05-13 | 96.77 | 130.23 | -0.92 | FFIV ahead |
| 2025-05-12 | 91.86 | 128.91 | -1.17 | FFIV ahead |
| 2025-05-09 | 86.09 | 124.18 | -1.33 | FFIV ahead |
| 2025-05-08 | 86.84 | 125.59 | -1.36 | FFIV ahead |
| 2025-05-07 | 86.02 | 122.99 | -1.30 | FFIV ahead |
| 2025-05-06 | 90.32 | 121.77 | -0.97 | FFIV ahead |
| 2025-05-05 | 89.93 | 122.86 | -1.05 | FFIV ahead |
| 2025-05-02 | 90.57 | 123.60 | -1.05 | FFIV ahead |
| 2025-05-01 | 87.40 | 122.20 | -1.20 | FFIV ahead |
| 2025-04-30 | 81.86 | 121.73 | -1.56 | FFIV ahead |
| 2025-04-29 | 80.33 | 120.80 | -1.64 | FFIV ahead |
| 2025-04-28 | 77.92 | 121.88 | -1.88 | FFIV ahead |
| 2025-04-25 | 77.52 | 124.16 | -2.04 | FFIV ahead |
| 2025-04-24 | 74.92 | 123.30 | -2.23 | FFIV ahead |
| 2025-04-23 | 70.41 | 120.68 | -2.50 | FFIV ahead |
| 2025-04-22 | 68.33 | 117.15 | -2.54 | FFIV ahead |
| 2025-04-21 | 67.33 | 115.32 | -2.57 | FFIV ahead |
| 2025-04-17 | 70.85 | 118.91 | -2.47 | FFIV ahead |
| 2025-04-16 | 71.51 | 119.08 | -2.46 | FFIV ahead |
| 2025-04-15 | 72.84 | 121.17 | -2.48 | FFIV ahead |
| 2025-04-14 | 73.22 | 120.79 | -2.47 | FFIV ahead |
| 2025-04-11 | 72.31 | 120.32 | -2.56 | FFIV ahead |
| 2025-04-10 | 72.29 | 117.25 | -2.43 | FFIV ahead |
| 2025-04-09 | 75.62 | 121.45 | -2.40 | FFIV ahead |
| 2025-04-08 | 69.15 | 111.06 | -2.43 | FFIV ahead |
| 2025-04-07 | 67.83 | 111.96 | -2.66 | FFIV ahead |
| 2025-04-04 | 64.05 | 110.01 | -2.99 | FFIV ahead |
| 2025-04-03 | 70.92 | 115.40 | -2.66 | FFIV ahead |
| 2025-04-02 | 79.76 | 125.40 | -2.46 | FFIV ahead |
| 2025-04-01 | 78.10 | 123.50 | -2.53 | FFIV ahead |
| 2025-03-31 | 77.09 | 122.43 | -2.61 | FFIV ahead |
| 2025-03-28 | 77.55 | 121.34 | -2.54 | FFIV ahead |
| 2025-03-27 | 78.57 | 124.19 | -2.66 | FFIV ahead |
| 2025-03-26 | 81.25 | 125.46 | -2.52 | FFIV ahead |
| 2025-03-25 | 86.51 | 126.47 | -2.13 | FFIV ahead |
| 2025-03-24 | 87.07 | 126.13 | -2.08 | FFIV ahead |
| 2025-03-21 | 82.72 | 123.41 | -2.34 | FFIV ahead |
| 2025-03-20 | 82.56 | 123.45 | -2.39 | FFIV ahead |
| 2025-03-19 | 84.00 | 124.25 | -2.33 | FFIV ahead |
| 2025-03-18 | 83.57 | 121.77 | -2.23 | FFIV ahead |
| 2025-03-17 | 84.67 | 122.98 | -2.23 | FFIV ahead |
| 2025-03-14 | 83.09 | 120.68 | -2.25 | FFIV ahead |
| 2025-03-13 | 79.74 | 118.36 | -2.45 | FFIV ahead |
| 2025-03-12 | 79.85 | 122.34 | -2.74 | FFIV ahead |
| 2025-03-11 | 78.74 | 121.99 | -2.88 | FFIV ahead |
| 2025-03-10 | 77.17 | 122.54 | -3.15 | FFIV ahead |
| 2025-03-07 | 82.95 | 126.74 | -2.87 | FFIV ahead |
| 2025-03-06 | 83.92 | 126.80 | -2.81 | FFIV ahead |
| 2025-03-05 | 87.38 | 130.00 | -2.72 | FFIV ahead |
| 2025-03-04 | 85.09 | 128.80 | -2.92 | FFIV ahead |
| 2025-03-03 | 85.58 | 130.66 | -3.05 | FFIV ahead |
| 2025-02-28 | 92.59 | 134.46 | -2.63 | FFIV ahead |
| 2025-02-27 | 91.11 | 133.79 | -2.76 | FFIV ahead |
| 2025-02-26 | 95.90 | 135.56 | -2.43 | FFIV ahead |
| 2025-02-25 | 92.42 | 134.72 | -2.75 | FFIV ahead |
| 2025-02-24 | 92.23 | 134.82 | -2.81 | FFIV ahead |
| 2025-02-21 | 97.81 | 135.90 | -2.34 | FFIV ahead |
| 2025-02-20 | 102.89 | 140.06 | -2.15 | FFIV ahead |
| 2025-02-19 | 103.40 | 142.58 | -2.29 | FFIV ahead |
| 2025-02-18 | 110.51 | 141.43 | -1.56 | FFIV ahead |
| 2025-02-14 | 106.34 | 142.62 | -2.03 | FFIV ahead |
| 2025-02-13 | 109.20 | 142.75 | -1.79 | FFIV ahead |
| 2025-02-12 | 109.09 | 142.82 | -1.81 | FFIV ahead |
| 2025-02-11 | 116.26 | 141.80 | -1.11 | FFIV ahead |
| 2025-02-10 | 119.63 | 141.78 | -0.82 | FFIV ahead |
| 2025-02-07 | 117.88 | 140.98 | -0.91 | FFIV ahead |
| 2025-02-06 | 114.70 | 141.36 | -1.20 | FFIV ahead |
| 2025-02-05 | 114.92 | 139.47 | -1.05 | FFIV ahead |
| 2025-02-04 | 111.76 | 137.84 | -1.20 | FFIV ahead |
| 2025-02-03 | 110.95 | 135.73 | -1.11 | FFIV ahead |
| 2025-01-31 | 114.66 | 136.68 | -0.85 | FFIV ahead |
| 2025-01-30 | 113.29 | 138.62 | -1.10 | FFIV ahead |
| 2025-01-29 | 107.30 | 138.16 | -1.60 | FFIV ahead |
| 2025-01-28 | 106.01 | 124.02 | -0.66 | FFIV ahead |
| 2025-01-27 | 99.80 | 120.94 | -1.00 | FFIV ahead |
| 2025-01-24 | 128.53 | 125.52 | +1.08 | ANET ahead |
| 2025-01-23 | 128.48 | 125.49 | +1.09 | ANET ahead |
| 2025-01-22 | 129.17 | 125.11 | +1.18 | ANET ahead |
| 2025-01-21 | 120.90 | 123.11 | +0.71 | ANET ahead |
| 2025-01-17 | 119.35 | 121.37 | +0.73 | ANET ahead |
| 2025-01-16 | 117.54 | 121.33 | +0.59 | ANET ahead |
| 2025-01-15 | 115.52 | 120.61 | +0.49 | near the usual relationship |
| 2025-01-14 | 114.34 | 118.68 | +0.55 | ANET ahead |
| 2025-01-13 | 112.08 | 117.33 | +0.48 | near the usual relationship |
| 2025-01-10 | 113.77 | 116.94 | +0.65 | ANET ahead |
| 2025-01-08 | 114.94 | 119.02 | +0.59 | ANET ahead |
| 2025-01-07 | 114.72 | 118.31 | +0.63 | ANET ahead |
| 2025-01-06 | 118.39 | 119.41 | +0.84 | ANET ahead |
| 2025-01-03 | 114.63 | 116.96 | +0.74 | ANET ahead |
| 2025-01-02 | 111.23 | 115.76 | +0.57 | ANET ahead |
| 2024-12-31 | 109.98 | 115.63 | +0.48 | near the usual relationship |
| 2024-12-30 | 110.90 | 116.09 | +0.53 | ANET ahead |
| 2024-12-27 | 112.47 | 117.54 | +0.55 | ANET ahead |
| 2024-12-26 | 114.29 | 118.23 | +0.65 | ANET ahead |
| 2024-12-24 | 114.08 | 117.80 | +0.67 | ANET ahead |
| 2024-12-23 | 112.53 | 116.98 | +0.61 | ANET ahead |
| 2024-12-20 | 112.25 | 115.99 | +0.67 | ANET ahead |
| 2024-12-19 | 108.53 | 115.14 | +0.45 | near the usual relationship |
| 2024-12-18 | 107.53 | 115.87 | +0.33 | near the usual relationship |
| 2024-12-17 | 112.39 | 119.46 | +0.45 | near the usual relationship |
| 2024-12-16 | 115.95 | 121.10 | +0.60 | ANET ahead |
| 2024-12-13 | 111.81 | 120.38 | +0.36 | near the usual relationship |
| 2024-12-12 | 106.35 | 120.27 | -0.04 | near the usual relationship |
| 2024-12-11 | 106.70 | 119.58 | +0.04 | near the usual relationship |
| 2024-12-10 | 104.26 | 117.53 | +0.00 | near the usual relationship |
| 2024-12-09 | 105.39 | 118.59 | +0.02 | near the usual relationship |
| 2024-12-06 | 107.71 | 118.24 | +0.23 | near the usual relationship |
| 2024-12-05 | 106.30 | 118.19 | +0.13 | near the usual relationship |
| 2024-12-04 | 104.91 | 116.85 | +0.13 | near the usual relationship |
| 2024-12-03 | 103.10 | 115.47 | +0.09 | near the usual relationship |
| 2024-12-02 | 102.01 | 115.94 | -0.01 | near the usual relationship |
| 2024-11-29 | 100.95 | 115.11 | -0.03 | near the usual relationship |
| 2024-11-27 | 100.07 | 114.99 | -0.08 | near the usual relationship |
| 2024-11-26 | 101.57 | 115.84 | -0.02 | near the usual relationship |
| 2024-11-25 | 99.43 | 114.37 | -0.08 | near the usual relationship |
| 2024-11-22 | 101.11 | 113.56 | +0.11 | near the usual relationship |
| 2024-11-21 | 100.74 | 112.33 | +0.17 | near the usual relationship |
| 2024-11-20 | 94.95 | 111.28 | -0.19 | near the usual relationship |
| 2024-11-19 | 93.96 | 110.20 | -0.19 | near the usual relationship |
| 2024-11-18 | 92.16 | 110.35 | -0.34 | near the usual relationship |
| 2024-11-15 | 93.13 | 109.60 | -0.21 | near the usual relationship |
| 2024-11-14 | 96.01 | 111.30 | -0.09 | near the usual relationship |
| 2024-11-13 | 98.30 | 113.51 | -0.06 | near the usual relationship |
| 2024-11-12 | 98.40 | 112.19 | +0.04 | near the usual relationship |
| 2024-11-11 | 98.83 | 111.58 | +0.12 | near the usual relationship |
| 2024-11-08 | 99.61 | 110.96 | +0.22 | near the usual relationship |
| 2024-11-07 | 107.22 | 111.22 | +0.73 | ANET ahead |
| 2024-11-06 | 105.25 | 110.41 | +0.66 | ANET ahead |
| 2024-11-05 | 100.78 | 107.10 | +0.57 | ANET ahead |
| 2024-11-04 | 98.23 | 106.31 | +0.45 | near the usual relationship |
| 2024-11-01 | 98.05 | 106.77 | +0.41 | near the usual relationship |
| 2024-10-31 | 96.13 | 107.54 | +0.22 | near the usual relationship |
| 2024-10-30 | 98.51 | 109.87 | +0.25 | near the usual relationship |
| 2024-10-29 | 99.89 | 110.51 | +0.32 | near the usual relationship |
| 2024-10-28 | 97.61 | 100.40 | +0.83 | ANET ahead |
| 2024-10-25 | 98.03 | 99.72 | +0.91 | ANET ahead |
| 2024-10-24 | 98.43 | 98.20 | +1.05 | ANET ahead |
| 2024-10-23 | 98.02 | 99.05 | +0.97 | ANET ahead |
| 2024-10-22 | 98.65 | 99.81 | +0.97 | ANET ahead |
| 2024-10-21 | 101.00 | 100.22 | +1.11 | ANET ahead |
| 2024-10-18 | 100.00 | 100.00 | +1.06 | ANET ahead |
One-day company-specific moves (4+ standard deviations, which block ideas for 10 sessions): Jan 27, 2025 (ANET -22.4%, FFIV -3.7%); Aug 6, 2025 (ANET +17.5%, FFIV +0.8%); Oct 16, 2025 (ANET +1.8%, FFIV -10.7%); May 6, 2026 (ANET -13.6%, FFIV +0.3%). Upcoming earnings: FFIV Oct 27, 2026 (after-hours); ANET Nov 3, 2026 (after-hours).
Paired trades
The shared paper book and the replay, kept apart
Forward paper record
No paper position on this pair yet.
Historical simulation (a diagnostic, same rules)
No simulated trade through Oct 20, 2026: the pair rarely passed every test while 2 standard deviations apart.
Per $10,000 a leg. A replay on today's companies cannot prove an edge.
The companies
ANET and FFIV at a glance
ANET Arista Networks Inc.
- Listing
- NYSE · SEC CIK 1596532
- Industry
- Computer Communications Equipment · SIC 3576 Computer Communications Equipment
- Market value
- $230.7B
- Price history
- 2,521 daily closes, Oct 12, 2016 to Oct 22, 2026
FFIV F5 Inc.
- Listing
- Nasdaq · SEC CIK 1048695
- Industry
- Computer Communications Equipment · SIC 3576 Computer Communications Equipment
- Market value
- $25.5B
- Price history
- 2,521 daily closes, Oct 12, 2016 to Oct 22, 2026
Daily prices: Nasdaq.com. Filings and industry codes: SEC EDGAR. Earnings dates: Nasdaq earnings calendar.
Related
All pairs →Other rivals of ANET and FFIV
| Pair | Status | Ahead now | Industry |
|---|---|---|---|
| CSCO / FFIV | Watchlist | FFIV by 2.45 sd | Computer Communications Equipment |
| CSCO / ANET | Watchlist | neither | Computer Communications Equipment |
Follow the research behind the paper book
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Explore the private betaPaper only: hypothetical paired positions with modelled costs. No broker, no orders, no real money. A historical simulation is a diagnostic, not proof of an edge. Not investment advice.
