AerCap Holdings N.V. vs Sunbelt Rentals Holdings Inc.
WatchlistAER / SUNBPrices through Oct 22, 2026
Why these are rivals: #2 and #3 by market value ($31B vs $22B) with SEC SIC 7359 (Services-Equipment Rental & Leasing, NEC).
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: 0.25 (needs >= 0.60)
Business leadership
SUNB is the larger business
Annual revenue reported to the SEC. Scale, not market share.
| Year | AER | SUNB | Larger |
|---|---|---|---|
| 2025 | $8.5B | $11.2B | SUNB |
| 2024 | $8.0B | $10.8B | SUNB |
| 2023 | $7.6B | $10.9B | SUNB |
| 2022 | $7.0B | - | - |
| 2021 | $5.2B | - | - |
| 2020 | $4.5B | - | - |
SUNB led in every year with figures for both. Market value: AER $22.4B, SUNB $31.1B.
Stock leadership
SUNB is ahead now
Measured against the pair's own last 252 trading days.
SUNB leads AER by 0.79 standard deviations: +5.8% over its usual price ratio. 7 lead switches in the last year.
| Price change | 3 mo | 6 mo | 12 mo |
|---|---|---|---|
| AER | -2.4% | +6.2% | +23.1% |
| SUNB | +4.2% | +3.3% | +9.0% |
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: 0.25 (needs >= 0.60)
- Pass
- Mean reversion: ADF t-statistic of the spread: -3.84 (needs <= -2.873 (5% critical value))
- Pass
- Speed: half-life of the spread, sessions: 6.96 (needs <= 63)
- Data
- Both stocks current
The twins over two years
Prices side by side, and the gap between them
AER AerCap Holdings N.V. SUNB Sunbelt Rentals Holdings 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: AER relative to SUNB, against the 252 sessions before each day. Above 0: AER ahead; below 0: SUNB ahead. Lines at +/-2 (idea) and +/-4 (stop).
Data table (504 sessions)
| Date | AER index | SUNB index | z | Ahead |
|---|---|---|---|---|
| 2026-10-22 | 151.48 | 100.79 | -0.79 | SUNB ahead |
| 2026-10-21 | 151.68 | 100.32 | -0.70 | SUNB ahead |
| 2026-10-20 | 148.14 | 98.40 | -0.74 | SUNB ahead |
| 2026-10-19 | 148.53 | 96.86 | -0.48 | near the usual relationship |
| 2026-10-16 | 149.44 | 97.15 | -0.43 | near the usual relationship |
| 2026-10-15 | 149.68 | 97.78 | -0.49 | near the usual relationship |
| 2026-10-14 | 148.00 | 96.63 | -0.47 | near the usual relationship |
| 2026-10-13 | 149.43 | 98.82 | -0.64 | SUNB ahead |
| 2026-10-12 | 149.96 | 96.56 | -0.28 | near the usual relationship |
| 2026-10-09 | 148.45 | 96.06 | -0.34 | near the usual relationship |
| 2026-10-08 | 146.49 | 95.65 | -0.46 | near the usual relationship |
| 2026-10-07 | 146.23 | 95.55 | -0.46 | near the usual relationship |
| 2026-10-06 | 150.04 | 100.36 | -0.77 | SUNB ahead |
| 2026-10-05 | 146.98 | 98.90 | -0.85 | SUNB ahead |
| 2026-10-02 | 148.06 | 98.53 | -0.70 | SUNB ahead |
| 2026-10-01 | 147.64 | 96.63 | -0.48 | near the usual relationship |
| 2026-09-30 | 147.22 | 93.56 | -0.08 | near the usual relationship |
| 2026-09-29 | 148.84 | 94.29 | -0.04 | near the usual relationship |
| 2026-09-28 | 150.28 | 95.71 | -0.10 | near the usual relationship |
| 2026-09-25 | 153.05 | 95.92 | +0.11 | near the usual relationship |
| 2026-09-24 | 149.16 | 92.96 | +0.19 | near the usual relationship |
| 2026-09-23 | 148.49 | 94.29 | -0.05 | near the usual relationship |
| 2026-09-22 | 147.93 | 96.70 | -0.41 | near the usual relationship |
| 2026-09-21 | 146.68 | 93.10 | -0.03 | near the usual relationship |
| 2026-09-18 | 145.29 | 94.04 | -0.26 | near the usual relationship |
| 2026-09-17 | 147.02 | 94.53 | -0.17 | near the usual relationship |
| 2026-09-16 | 145.87 | 92.46 | +0.02 | near the usual relationship |
| 2026-09-15 | 141.88 | 91.87 | -0.24 | near the usual relationship |
| 2026-09-14 | 143.01 | 93.37 | -0.33 | near the usual relationship |
| 2026-09-11 | 145.14 | 92.88 | -0.08 | near the usual relationship |
| 2026-09-10 | 144.05 | 93.52 | -0.24 | near the usual relationship |
| 2026-09-09 | 144.63 | 93.83 | -0.22 | near the usual relationship |
| 2026-09-08 | 147.24 | 88.59 | +0.68 | AER ahead |
| 2026-09-04 | 149.14 | 87.65 | +0.96 | AER ahead |
| 2026-09-03 | 150.25 | 84.33 | +1.51 | AER ahead |
| 2026-09-02 | 148.65 | 85.76 | +1.20 | AER ahead |
| 2026-09-01 | 147.87 | 85.71 | +1.15 | AER ahead |
| 2026-08-31 | 149.70 | 92.37 | +0.43 | near the usual relationship |
| 2026-08-28 | 151.29 | 93.55 | +0.41 | near the usual relationship |
| 2026-08-27 | 151.78 | 94.13 | +0.38 | near the usual relationship |
| 2026-08-26 | 153.69 | 95.05 | +0.42 | near the usual relationship |
| 2026-08-25 | 151.24 | 96.73 | +0.05 | near the usual relationship |
| 2026-08-24 | 151.36 | 97.61 | -0.04 | near the usual relationship |
| 2026-08-21 | 150.06 | 98.25 | -0.20 | near the usual relationship |
| 2026-08-20 | 150.57 | 98.53 | -0.18 | near the usual relationship |
| 2026-08-19 | 152.02 | 102.02 | -0.45 | near the usual relationship |
| 2026-08-18 | 153.47 | 100.70 | -0.19 | near the usual relationship |
| 2026-08-17 | 154.32 | 106.25 | -0.70 | SUNB ahead |
| 2026-08-14 | 156.38 | 108.37 | -0.76 | SUNB ahead |
| 2026-08-13 | 153.03 | 103.81 | -0.52 | SUNB ahead |
| 2026-08-12 | 154.12 | 102.86 | -0.34 | near the usual relationship |
| 2026-08-11 | 153.15 | 102.94 | -0.41 | near the usual relationship |
| 2026-08-10 | 153.43 | 100.78 | -0.16 | near the usual relationship |
| 2026-08-07 | 155.63 | 103.62 | -0.30 | near the usual relationship |
| 2026-08-06 | 159.24 | 103.41 | -0.03 | near the usual relationship |
| 2026-08-05 | 159.12 | 102.11 | +0.09 | near the usual relationship |
| 2026-08-04 | 159.07 | 102.79 | +0.03 | near the usual relationship |
| 2026-08-03 | 157.61 | 95.94 | +0.64 | AER ahead |
| 2026-07-31 | 154.79 | 91.91 | +0.89 | AER ahead |
| 2026-07-30 | 156.81 | 92.69 | +0.95 | AER ahead |
| 2026-07-29 | 152.46 | 93.81 | +0.55 | AER ahead |
| 2026-07-28 | 158.06 | 96.50 | +0.64 | AER ahead |
| 2026-07-27 | 155.30 | 96.51 | +0.47 | near the usual relationship |
| 2026-07-24 | 155.20 | 96.70 | +0.45 | near the usual relationship |
| 2026-07-23 | 152.40 | 99.00 | +0.04 | near the usual relationship |
| 2026-07-22 | 154.49 | 92.58 | +0.84 | AER ahead |
| 2026-07-21 | 155.69 | 92.08 | +0.98 | AER ahead |
| 2026-07-20 | 152.15 | 92.01 | +0.76 | AER ahead |
| 2026-07-17 | 150.75 | 93.81 | +0.49 | near the usual relationship |
| 2026-07-16 | 150.95 | 94.06 | +0.48 | near the usual relationship |
| 2026-07-15 | 151.60 | 93.28 | +0.61 | AER ahead |
| 2026-07-14 | 150.53 | 92.55 | +0.62 | AER ahead |
| 2026-07-13 | 152.98 | 94.34 | +0.60 | AER ahead |
| 2026-07-10 | 153.73 | 95.64 | +0.52 | AER ahead |
| 2026-07-09 | 154.92 | 93.29 | +0.84 | AER ahead |
| 2026-07-08 | 152.76 | 89.84 | +1.08 | AER ahead |
| 2026-07-07 | 154.96 | 88.96 | +1.33 | AER ahead |
| 2026-07-06 | 157.40 | 93.53 | +1.00 | AER ahead |
| 2026-07-02 | 151.65 | 92.45 | +0.75 | AER ahead |
| 2026-07-01 | 145.57 | 93.21 | +0.27 | near the usual relationship |
| 2026-06-30 | 149.53 | 95.60 | +0.29 | near the usual relationship |
| 2026-06-29 | 151.34 | 93.16 | +0.66 | AER ahead |
| 2026-06-26 | 152.64 | 94.66 | +0.59 | AER ahead |
| 2026-06-25 | 153.97 | 96.08 | +0.53 | AER ahead |
| 2026-06-24 | 151.70 | 93.57 | +0.65 | AER ahead |
| 2026-06-23 | 150.18 | 96.37 | +0.26 | near the usual relationship |
| 2026-06-22 | 150.63 | 106.38 | -0.68 | SUNB ahead |
| 2026-06-18 | 148.79 | 109.98 | -1.14 | SUNB ahead |
| 2026-06-17 | 147.83 | 104.19 | -0.67 | SUNB ahead |
| 2026-06-16 | 146.66 | 106.07 | -0.93 | SUNB ahead |
| 2026-06-15 | 145.13 | 106.86 | -1.12 | SUNB ahead |
| 2026-06-12 | 143.60 | 105.27 | -1.08 | SUNB ahead |
| 2026-06-11 | 141.45 | 104.08 | -1.13 | SUNB ahead |
| 2026-06-10 | 138.55 | 102.24 | -1.17 | SUNB ahead |
| 2026-06-09 | 142.60 | 106.88 | -1.33 | SUNB ahead |
| 2026-06-08 | 139.20 | 103.88 | -1.30 | SUNB ahead |
| 2026-06-05 | 140.47 | 101.42 | -0.98 | SUNB ahead |
| 2026-06-04 | 139.95 | 103.88 | -1.26 | SUNB ahead |
| 2026-06-03 | 137.96 | 98.86 | -0.92 | SUNB ahead |
| 2026-06-02 | 137.50 | 97.67 | -0.83 | SUNB ahead |
| 2026-06-01 | 140.18 | 98.50 | -0.73 | SUNB ahead |
| 2026-05-29 | 142.98 | 99.74 | -0.66 | SUNB ahead |
| 2026-05-28 | 142.56 | 99.48 | -0.67 | SUNB ahead |
| 2026-05-27 | 145.45 | 101.01 | -0.62 | SUNB ahead |
| 2026-05-26 | 143.80 | 100.42 | -0.68 | SUNB ahead |
| 2026-05-22 | 142.19 | 99.55 | -0.71 | SUNB ahead |
| 2026-05-21 | 143.16 | 96.43 | -0.32 | near the usual relationship |
| 2026-05-20 | 143.04 | 95.05 | -0.19 | near the usual relationship |
| 2026-05-19 | 139.53 | 96.04 | -0.55 | SUNB ahead |
| 2026-05-18 | 143.39 | 96.83 | -0.36 | near the usual relationship |
| 2026-05-15 | 143.37 | 97.46 | -0.42 | near the usual relationship |
| 2026-05-14 | 145.73 | 101.56 | -0.68 | SUNB ahead |
| 2026-05-13 | 146.56 | 97.21 | -0.18 | near the usual relationship |
| 2026-05-12 | 148.28 | 92.65 | +0.43 | near the usual relationship |
| 2026-05-11 | 149.98 | 91.92 | +0.63 | AER ahead |
| 2026-05-08 | 153.86 | 93.56 | +0.71 | AER ahead |
| 2026-05-07 | 152.31 | 93.71 | +0.59 | AER ahead |
| 2026-05-06 | 154.94 | 97.93 | +0.32 | near the usual relationship |
| 2026-05-05 | 148.34 | 95.74 | +0.10 | near the usual relationship |
| 2026-05-04 | 141.28 | 95.86 | -0.41 | near the usual relationship |
| 2026-05-01 | 144.57 | 98.30 | -0.43 | near the usual relationship |
| 2026-04-30 | 145.87 | 97.80 | -0.29 | near the usual relationship |
| 2026-04-29 | 141.67 | 93.65 | -0.15 | near the usual relationship |
| 2026-04-28 | 140.66 | 97.15 | -0.60 | SUNB ahead |
| 2026-04-27 | 142.22 | 95.36 | -0.29 | near the usual relationship |
| 2026-04-24 | 141.64 | 98.25 | -0.64 | SUNB ahead |
| 2026-04-23 | 142.68 | 97.57 | -0.50 | SUNB ahead |
| 2026-04-22 | 141.83 | 89.37 | +0.34 | near the usual relationship |
| 2026-04-21 | 144.26 | 90.19 | +0.42 | near the usual relationship |
| 2026-04-20 | 150.22 | 92.45 | +0.59 | AER ahead |
| 2026-04-17 | 151.25 | 91.49 | +0.77 | AER ahead |
| 2026-04-16 | 146.13 | 85.12 | +1.16 | AER ahead |
| 2026-04-15 | 151.03 | 86.59 | +1.33 | AER ahead |
| 2026-04-14 | 152.81 | 87.90 | +1.31 | AER ahead |
| 2026-04-13 | 152.43 | 88.49 | +1.23 | AER ahead |
| 2026-04-10 | 149.28 | 87.11 | +1.18 | AER ahead |
| 2026-04-09 | 149.01 | 86.40 | +1.26 | AER ahead |
| 2026-04-08 | 147.94 | 85.76 | +1.27 | AER ahead |
| 2026-04-07 | 144.46 | 80.74 | +1.66 | AER ahead |
| 2026-04-06 | 145.14 | 80.84 | +1.71 | AER ahead |
| 2026-04-02 | 142.76 | 80.63 | +1.58 | AER ahead |
| 2026-04-01 | 143.56 | 82.36 | +1.43 | AER ahead |
| 2026-03-31 | 140.71 | 83.18 | +1.12 | AER ahead |
| 2026-03-30 | 135.38 | 81.92 | +0.88 | AER ahead |
| 2026-03-27 | 136.81 | 83.41 | +0.81 | AER ahead |
| 2026-03-26 | 137.60 | 80.91 | +1.20 | AER ahead |
| 2026-03-25 | 141.37 | 87.50 | +0.66 | AER ahead |
| 2026-03-24 | 140.00 | 88.96 | +0.39 | near the usual relationship |
| 2026-03-23 | 138.69 | 85.79 | +0.68 | AER ahead |
| 2026-03-20 | 134.99 | 81.90 | +0.89 | AER ahead |
| 2026-03-19 | 136.80 | 84.37 | +0.72 | AER ahead |
| 2026-03-18 | 139.29 | 90.73 | +0.14 | near the usual relationship |
| 2026-03-17 | 140.96 | 94.03 | -0.11 | near the usual relationship |
| 2026-03-16 | 138.68 | 93.61 | -0.23 | near the usual relationship |
| 2026-03-13 | 136.47 | 92.98 | -0.33 | near the usual relationship |
| 2026-03-12 | 136.55 | 89.25 | +0.12 | near the usual relationship |
| 2026-03-11 | 144.65 | 91.02 | +0.52 | AER ahead |
| 2026-03-10 | 144.26 | 92.42 | +0.34 | near the usual relationship |
| 2026-03-09 | 142.93 | 96.51 | -0.21 | near the usual relationship |
| 2026-03-06 | 139.60 | 95.12 | -0.31 | near the usual relationship |
| 2026-03-05 | 144.46 | 95.90 | -0.03 | near the usual relationship |
| 2026-03-04 | 153.65 | 89.47 | +1.36 | AER ahead |
| 2026-03-03 | 149.84 | 89.47 | +1.10 | AER ahead |
| 2026-03-02 | 154.10 | 89.47 | +1.41 | AER ahead |
| 2026-02-27 | 153.29 | 93.41 | +0.91 | AER ahead |
| 2026-02-26 | 154.23 | 92.47 | +1.09 | AER ahead |
| 2026-02-25 | 154.18 | 94.67 | +0.84 | AER ahead |
| 2026-02-24 | 152.28 | 91.37 | +1.09 | AER ahead |
| 2026-02-23 | 151.54 | 87.71 | +1.49 | AER ahead |
| 2026-02-20 | 155.27 | 87.60 | +1.77 | AER ahead |
| 2026-02-19 | 155.22 | 90.10 | +1.48 | AER ahead |
| 2026-02-18 | 158.82 | 88.91 | +1.88 | AER ahead |
| 2026-02-17 | 156.49 | 87.64 | +1.89 | AER ahead |
| 2026-02-13 | 154.30 | 91.05 | +1.35 | AER ahead |
| 2026-02-12 | 151.56 | 92.84 | +0.96 | AER ahead |
| 2026-02-11 | 152.06 | 89.75 | +1.35 | AER ahead |
| 2026-02-10 | 148.73 | 88.27 | +1.30 | AER ahead |
| 2026-02-09 | 146.17 | 87.28 | +1.25 | AER ahead |
| 2026-02-06 | 143.68 | 86.33 | +1.19 | AER ahead |
| 2026-02-05 | 147.71 | 85.82 | +1.54 | AER ahead |
| 2026-02-04 | 146.86 | 86.43 | +1.41 | AER ahead |
| 2026-02-03 | 147.31 | 83.25 | +1.83 | AER ahead |
| 2026-02-02 | 149.06 | 87.22 | +1.49 | AER ahead |
| 2026-01-30 | 147.36 | 81.21 | +2.09 | AER ahead |
| 2026-01-29 | 148.25 | 84.98 | +1.71 | AER ahead |
| 2026-01-28 | 146.31 | 89.23 | +1.10 | AER ahead |
| 2026-01-27 | 147.56 | 88.83 | +1.23 | AER ahead |
| 2026-01-26 | 147.35 | 92.69 | +0.81 | AER ahead |
| 2026-01-23 | 148.63 | 91.07 | +1.06 | AER ahead |
| 2026-01-22 | 147.68 | 91.07 | +1.01 | AER ahead |
| 2026-01-21 | 146.95 | 88.01 | +1.29 | AER ahead |
| 2026-01-20 | 146.24 | 84.66 | +1.61 | AER ahead |
| 2026-01-16 | 146.49 | 92.11 | +0.85 | AER ahead |
| 2026-01-15 | 147.33 | 90.73 | +1.05 | AER ahead |
| 2026-01-14 | 145.49 | 90.65 | +0.95 | AER ahead |
| 2026-01-13 | 147.99 | 90.65 | +1.12 | AER ahead |
| 2026-01-12 | 147.46 | 91.88 | +0.97 | AER ahead |
| 2026-01-09 | 148.02 | 94.75 | +0.72 | AER ahead |
| 2026-01-08 | 150.94 | 94.31 | +0.95 | AER ahead |
| 2026-01-07 | 150.34 | 94.33 | +0.92 | AER ahead |
| 2026-01-06 | 151.19 | 93.12 | +1.10 | AER ahead |
| 2026-01-05 | 151.90 | 92.08 | +1.26 | AER ahead |
| 2026-01-02 | 148.35 | 85.09 | +1.78 | AER ahead |
| 2025-12-31 | 147.46 | 87.22 | +1.51 | AER ahead |
| 2025-12-30 | 147.85 | 89.58 | +1.30 | AER ahead |
| 2025-12-29 | 147.66 | 89.98 | +1.26 | AER ahead |
| 2025-12-26 | 148.51 | 89.90 | +1.33 | AER ahead |
| 2025-12-24 | 148.98 | 90.38 | +1.32 | AER ahead |
| 2025-12-23 | 148.96 | 90.38 | +1.33 | AER ahead |
| 2025-12-22 | 149.43 | 91.19 | +1.28 | AER ahead |
| 2025-12-19 | 148.51 | 94.57 | +0.90 | AER ahead |
| 2025-12-18 | 146.99 | 91.37 | +1.13 | AER ahead |
| 2025-12-17 | 144.58 | 90.59 | +1.06 | AER ahead |
| 2025-12-16 | 145.36 | 93.60 | +0.82 | AER ahead |
| 2025-12-15 | 145.44 | 89.46 | +1.24 | AER ahead |
| 2025-12-12 | 143.13 | 88.96 | +1.15 | AER ahead |
| 2025-12-11 | 144.79 | 86.75 | +1.47 | AER ahead |
| 2025-12-10 | 143.36 | 81.23 | +1.94 | AER ahead |
| 2025-12-09 | 143.30 | 82.36 | +1.81 | AER ahead |
| 2025-12-08 | 142.18 | 82.89 | +1.69 | AER ahead |
| 2025-12-05 | 143.59 | 82.39 | +1.82 | AER ahead |
| 2025-12-04 | 143.52 | 83.07 | +1.75 | AER ahead |
| 2025-12-03 | 141.70 | 80.41 | +1.91 | AER ahead |
| 2025-12-02 | 139.18 | 78.26 | +1.99 | AER ahead |
| 2025-12-01 | 135.21 | 80.79 | +1.51 | AER ahead |
| 2025-11-28 | 137.45 | 81.33 | +1.59 | AER ahead |
| 2025-11-26 | 136.49 | 81.33 | +1.53 | AER ahead |
| 2025-11-25 | 135.52 | 80.29 | +1.58 | AER ahead |
| 2025-11-24 | 134.36 | 78.87 | +1.66 | AER ahead |
| 2025-11-21 | 135.06 | 78.50 | +1.74 | AER ahead |
| 2025-11-20 | 134.72 | 77.96 | +1.77 | AER ahead |
| 2025-11-19 | 135.86 | 77.21 | +1.92 | AER ahead |
| 2025-11-18 | 135.44 | 78.61 | +1.76 | AER ahead |
| 2025-11-17 | 136.39 | 79.11 | +1.77 | AER ahead |
| 2025-11-14 | 140.38 | 80.77 | +1.84 | AER ahead |
| 2025-11-13 | 140.03 | 81.57 | +1.75 | AER ahead |
| 2025-11-12 | 141.21 | 82.89 | +1.70 | AER ahead |
| 2025-11-11 | 139.68 | 81.15 | +1.78 | AER ahead |
| 2025-11-10 | 139.78 | 81.18 | +1.79 | AER ahead |
| 2025-11-07 | 136.37 | 79.55 | +1.77 | AER ahead |
| 2025-11-06 | 135.65 | 79.87 | +1.72 | AER ahead |
| 2025-11-05 | 137.07 | 82.31 | +1.58 | AER ahead |
| 2025-11-04 | 134.27 | 82.11 | +1.46 | AER ahead |
| 2025-11-03 | 134.37 | 83.45 | +1.36 | AER ahead |
| 2025-10-31 | 133.59 | 85.57 | +1.15 | AER ahead |
| 2025-10-30 | 133.74 | 87.09 | +1.04 | AER ahead |
| 2025-10-29 | 135.02 | 87.60 | +1.07 | AER ahead |
| 2025-10-28 | 124.12 | 88.15 | +0.45 | near the usual relationship |
| 2025-10-27 | 124.18 | 90.10 | +0.31 | near the usual relationship |
| 2025-10-24 | 125.04 | 92.40 | +0.19 | near the usual relationship |
| 2025-10-23 | 123.75 | 92.14 | +0.15 | near the usual relationship |
| 2025-10-22 | 122.90 | 92.14 | +0.11 | near the usual relationship |
| 2025-10-21 | 123.07 | 92.45 | +0.10 | near the usual relationship |
| 2025-10-20 | 124.11 | 92.01 | +0.19 | near the usual relationship |
| 2025-10-17 | 123.53 | 91.58 | +0.20 | near the usual relationship |
| 2025-10-16 | 123.33 | 90.49 | +0.27 | near the usual relationship |
| 2025-10-15 | 125.08 | 89.62 | +0.44 | near the usual relationship |
| 2025-10-14 | 126.86 | 88.55 | +0.62 | AER ahead |
| 2025-10-13 | 125.94 | 88.55 | +0.57 | AER ahead |
| 2025-10-10 | 123.97 | 86.94 | +0.60 | AER ahead |
| 2025-10-09 | 124.62 | 86.94 | +0.64 | AER ahead |
| 2025-10-08 | 124.98 | 88.72 | +0.53 | AER ahead |
| 2025-10-07 | 126.81 | 87.31 | +0.73 | AER ahead |
| 2025-10-06 | 128.37 | 86.46 | +0.88 | AER ahead |
| 2025-10-03 | 128.73 | 87.11 | +0.86 | AER ahead |
| 2025-10-02 | 127.43 | 86.59 | +0.84 | AER ahead |
| 2025-10-01 | 125.90 | 84.83 | +0.90 | AER ahead |
| 2025-09-30 | 124.12 | 84.83 | +0.81 | AER ahead |
| 2025-09-29 | 124.60 | 87.01 | +0.68 | AER ahead |
| 2025-09-26 | 126.30 | 84.97 | +0.92 | AER ahead |
| 2025-09-25 | 125.45 | 84.97 | +0.89 | AER ahead |
| 2025-09-24 | 123.82 | 86.82 | +0.68 | AER ahead |
| 2025-09-23 | 125.44 | 89.78 | +0.56 | AER ahead |
| 2025-09-22 | 125.51 | 88.75 | +0.64 | AER ahead |
| 2025-09-19 | 123.30 | 91.71 | +0.33 | near the usual relationship |
| 2025-09-18 | 124.36 | 92.66 | +0.33 | near the usual relationship |
| 2025-09-17 | 123.99 | 95.22 | +0.15 | near the usual relationship |
| 2025-09-16 | 123.26 | 93.11 | +0.25 | near the usual relationship |
| 2025-09-15 | 123.21 | 92.52 | +0.29 | near the usual relationship |
| 2025-09-12 | 125.42 | 93.44 | +0.35 | near the usual relationship |
| 2025-09-11 | 127.34 | 93.29 | +0.45 | near the usual relationship |
| 2025-09-10 | 124.56 | 95.85 | +0.16 | near the usual relationship |
| 2025-09-09 | 124.52 | 95.85 | +0.16 | near the usual relationship |
| 2025-09-08 | 126.17 | 97.12 | +0.17 | near the usual relationship |
| 2025-09-05 | 126.71 | 94.75 | +0.35 | near the usual relationship |
| 2025-09-04 | 125.76 | 92.54 | +0.45 | near the usual relationship |
| 2025-09-03 | 127.48 | 92.70 | +0.52 | AER ahead |
| 2025-09-02 | 127.62 | 92.61 | +0.54 | AER ahead |
| 2025-08-29 | 126.68 | 94.60 | +0.38 | near the usual relationship |
| 2025-08-28 | 126.99 | 95.72 | +0.32 | near the usual relationship |
| 2025-08-27 | 126.09 | 95.72 | +0.29 | near the usual relationship |
| 2025-08-26 | 126.87 | 95.42 | +0.35 | near the usual relationship |
| 2025-08-25 | 123.60 | 94.27 | +0.27 | near the usual relationship |
| 2025-08-22 | 122.52 | 94.22 | +0.22 | near the usual relationship |
| 2025-08-21 | 121.08 | 92.91 | +0.24 | near the usual relationship |
| 2025-08-20 | 118.71 | 92.61 | +0.14 | near the usual relationship |
| 2025-08-19 | 118.16 | 95.73 | -0.08 | near the usual relationship |
| 2025-08-18 | 117.48 | 91.68 | +0.15 | near the usual relationship |
| 2025-08-15 | 115.99 | 92.13 | +0.04 | near the usual relationship |
| 2025-08-14 | 115.64 | 92.13 | +0.03 | near the usual relationship |
| 2025-08-13 | 116.69 | 89.96 | +0.23 | near the usual relationship |
| 2025-08-12 | 116.70 | 89.66 | +0.25 | near the usual relationship |
| 2025-08-11 | 113.21 | 85.21 | +0.37 | near the usual relationship |
| 2025-08-08 | 113.08 | 86.58 | +0.28 | near the usual relationship |
| 2025-08-07 | 111.97 | 86.58 | +0.22 | near the usual relationship |
| 2025-08-06 | 111.61 | 84.37 | +0.36 | near the usual relationship |
| 2025-08-05 | 110.88 | 85.24 | +0.27 | near the usual relationship |
| 2025-08-04 | 112.18 | 84.76 | +0.37 | near the usual relationship |
| 2025-08-01 | 111.16 | 84.76 | +0.32 | near the usual relationship |
| 2025-07-31 | 110.01 | 85.55 | +0.21 | near the usual relationship |
| 2025-07-30 | 111.86 | 85.96 | +0.29 | near the usual relationship |
| 2025-07-29 | 115.58 | 87.06 | +0.41 | near the usual relationship |
| 2025-07-28 | 114.73 | 88.82 | +0.25 | near the usual relationship |
| 2025-07-25 | 115.07 | 88.18 | +0.31 | near the usual relationship |
| 2025-07-24 | 114.89 | 87.12 | +0.38 | near the usual relationship |
| 2025-07-23 | 115.91 | 85.50 | +0.54 | AER ahead |
| 2025-07-22 | 114.96 | 82.03 | +0.74 | AER ahead |
| 2025-07-21 | 114.69 | 83.11 | +0.66 | AER ahead |
| 2025-07-18 | 114.98 | 83.71 | +0.64 | AER ahead |
| 2025-07-17 | 116.73 | 82.44 | +0.82 | AER ahead |
| 2025-07-16 | 117.55 | 80.86 | +0.98 | AER ahead |
| 2025-07-15 | 117.50 | 82.48 | +0.87 | AER ahead |
| 2025-07-14 | 118.27 | 83.07 | +0.87 | AER ahead |
| 2025-07-11 | 117.47 | 85.62 | +0.66 | AER ahead |
| 2025-07-10 | 117.70 | 86.90 | +0.59 | AER ahead |
| 2025-07-09 | 116.99 | 82.49 | +0.86 | AER ahead |
| 2025-07-08 | 118.10 | 82.35 | +0.93 | AER ahead |
| 2025-07-07 | 119.41 | 82.72 | +0.98 | AER ahead |
| 2025-07-03 | 118.87 | 84.66 | +0.82 | AER ahead |
| 2025-07-02 | 118.01 | 84.95 | +0.77 | AER ahead |
| 2025-07-01 | 118.56 | 80.58 | +1.11 | AER ahead |
| 2025-06-30 | 120.01 | 82.43 | +1.06 | AER ahead |
| 2025-06-27 | 120.26 | 82.43 | +1.08 | AER ahead |
| 2025-06-26 | 118.71 | 79.23 | +1.24 | AER ahead |
| 2025-06-25 | 117.60 | 76.26 | +1.43 | AER ahead |
| 2025-06-24 | 119.00 | 76.93 | +1.46 | AER ahead |
| 2025-06-23 | 118.06 | 75.36 | +1.55 | AER ahead |
| 2025-06-20 | 118.32 | 76.81 | +1.46 | AER ahead |
| 2025-06-18 | 117.86 | 76.81 | +1.45 | AER ahead |
| 2025-06-17 | 117.98 | 79.45 | +1.27 | AER ahead |
| 2025-06-16 | 118.84 | 76.23 | +1.57 | AER ahead |
| 2025-06-13 | 118.82 | 74.11 | +1.76 | AER ahead |
| 2025-06-12 | 119.24 | 74.12 | +1.80 | AER ahead |
| 2025-06-11 | 120.14 | 77.02 | +1.63 | AER ahead |
| 2025-06-10 | 118.29 | 75.39 | +1.68 | AER ahead |
| 2025-06-09 | 118.94 | 73.98 | +1.85 | AER ahead |
| 2025-06-06 | 119.86 | 74.76 | +1.85 | AER ahead |
| 2025-06-05 | 118.84 | 74.38 | +1.85 | AER ahead |
| 2025-06-04 | 117.60 | 74.76 | +1.77 | AER ahead |
| 2025-06-03 | 118.65 | 74.12 | +1.90 | AER ahead |
| 2025-06-02 | 118.79 | 74.12 | +1.93 | AER ahead |
| 2025-05-30 | 118.71 | 73.80 | +1.98 | AER ahead |
| 2025-05-29 | 117.74 | 75.12 | +1.83 | AER ahead |
| 2025-05-28 | 116.48 | 74.13 | +1.87 | AER ahead |
| 2025-05-27 | 117.34 | 75.97 | +1.78 | AER ahead |
| 2025-05-23 | 115.63 | 72.35 | +2.02 | AER ahead |
| 2025-05-22 | 114.98 | 72.35 | +2.01 | AER ahead |
| 2025-05-21 | 115.25 | 72.40 | +2.05 | AER ahead |
| 2025-05-20 | 116.09 | 77.56 | +1.66 | AER ahead |
| 2025-05-19 | 116.74 | 75.91 | +1.85 | AER ahead |
| 2025-05-16 | 115.98 | 74.27 | +1.98 | AER ahead |
| 2025-05-15 | 116.51 | 74.57 | +2.00 | AER ahead |
| 2025-05-14 | 115.62 | 75.65 | +1.88 | AER ahead |
| 2025-05-13 | 114.98 | 76.56 | +1.78 | AER ahead |
| 2025-05-12 | 114.21 | 74.89 | +1.90 | AER ahead |
| 2025-05-09 | 112.39 | 70.99 | +2.18 | AER ahead |
| 2025-05-08 | 111.23 | 72.83 | +1.96 | AER ahead |
| 2025-05-07 | 110.72 | 68.46 | +2.38 | AER ahead |
| 2025-05-06 | 110.49 | 69.47 | +2.30 | AER ahead |
| 2025-05-05 | 110.40 | 70.03 | +2.27 | AER ahead |
| 2025-05-02 | 109.50 | 70.68 | +2.17 | AER ahead |
| 2025-05-01 | 108.62 | 67.30 | +2.50 | AER ahead |
| 2025-04-30 | 108.73 | 66.66 | +2.61 | AER ahead |
| 2025-04-29 | 108.46 | 67.63 | +2.53 | AER ahead |
| 2025-04-28 | 106.70 | 71.57 | +2.02 | AER ahead |
| 2025-04-25 | 105.96 | 69.90 | +2.17 | AER ahead |
| 2025-04-24 | 104.80 | 70.99 | +2.00 | AER ahead |
| 2025-04-23 | 102.57 | 69.01 | +2.08 | AER ahead |
| 2025-04-22 | 99.50 | 68.37 | +1.94 | AER ahead |
| 2025-04-21 | 96.93 | 67.00 | +1.92 | AER ahead |
| 2025-04-17 | 99.86 | 66.77 | +2.19 | AER ahead |
| 2025-04-16 | 97.58 | 66.65 | +2.06 | AER ahead |
| 2025-04-15 | 99.21 | 66.45 | +2.23 | AER ahead |
| 2025-04-14 | 98.22 | 67.94 | +2.01 | AER ahead |
| 2025-04-11 | 94.35 | 66.95 | +1.83 | AER ahead |
| 2025-04-10 | 92.70 | 66.17 | +1.81 | AER ahead |
| 2025-04-09 | 97.77 | 66.56 | +2.20 | AER ahead |
| 2025-04-08 | 91.26 | 63.95 | +2.00 | AER ahead |
| 2025-04-07 | 91.72 | 60.45 | +2.52 | AER ahead |
| 2025-04-04 | 91.71 | 61.79 | +2.38 | AER ahead |
| 2025-04-03 | 101.19 | 66.77 | +2.58 | AER ahead |
| 2025-04-02 | 106.64 | 69.14 | +2.78 | AER ahead |
| 2025-04-01 | 104.97 | 70.12 | +2.58 | AER ahead |
| 2025-03-31 | 104.80 | 69.33 | +2.70 | AER ahead |
| 2025-03-28 | 104.79 | 70.32 | +2.63 | AER ahead |
| 2025-03-27 | 105.41 | 74.44 | +2.23 | AER ahead |
| 2025-03-26 | 105.98 | 72.68 | +2.52 | AER ahead |
| 2025-03-25 | 105.59 | 73.39 | +2.44 | AER ahead |
| 2025-03-24 | 106.30 | 74.44 | +2.41 | AER ahead |
| 2025-03-21 | 104.84 | 73.36 | +2.46 | AER ahead |
| 2025-03-20 | 107.29 | 73.48 | +2.70 | AER ahead |
| 2025-03-19 | 107.04 | 73.47 | +2.73 | AER ahead |
| 2025-03-18 | 105.69 | 73.80 | +2.62 | AER ahead |
| 2025-03-17 | 105.24 | 73.15 | +2.71 | AER ahead |
| 2025-03-14 | 103.94 | 74.12 | +2.52 | AER ahead |
| 2025-03-13 | 101.62 | 70.29 | +2.86 | AER ahead |
| 2025-03-12 | 99.61 | 72.12 | +2.46 | AER ahead |
| 2025-03-11 | 99.91 | 72.99 | +2.41 | AER ahead |
| 2025-03-10 | 97.71 | 71.53 | +2.43 | AER ahead |
| 2025-03-07 | 102.43 | 74.52 | +2.53 | AER ahead |
| 2025-03-06 | 103.81 | 73.69 | +2.82 | AER ahead |
| 2025-03-05 | 104.61 | 74.47 | +2.83 | AER ahead |
| 2025-03-04 | 101.02 | 72.24 | +2.82 | AER ahead |
| 2025-03-03 | 103.60 | 76.50 | +2.52 | AER ahead |
| 2025-02-28 | 105.75 | 76.47 | +2.78 | AER ahead |
| 2025-02-27 | 105.18 | 75.67 | +2.88 | AER ahead |
| 2025-02-26 | 104.97 | 77.50 | +2.64 | AER ahead |
| 2025-02-25 | 104.11 | 75.91 | +2.82 | AER ahead |
| 2025-02-24 | 104.20 | 77.93 | +2.59 | AER ahead |
| 2025-02-21 | 104.29 | 78.91 | +2.50 | AER ahead |
| 2025-02-20 | 108.50 | 79.25 | +2.94 | AER ahead |
| 2025-02-19 | 108.15 | 79.47 | +2.93 | AER ahead |
| 2025-02-18 | 105.73 | 82.11 | +2.35 | AER ahead |
| 2025-02-14 | 103.29 | 84.83 | +1.74 | AER ahead |
| 2025-02-13 | 101.57 | 80.19 | +2.21 | AER ahead |
| 2025-02-12 | 101.62 | 79.97 | +2.28 | AER ahead |
| 2025-02-11 | 100.24 | 82.75 | +1.75 | AER ahead |
| 2025-02-10 | 99.32 | 83.54 | +1.55 | AER ahead |
| 2025-02-07 | 100.27 | 78.40 | +2.42 | AER ahead |
| 2025-02-06 | 99.86 | 83.12 | +1.71 | AER ahead |
| 2025-02-05 | 99.04 | 79.99 | +2.09 | AER ahead |
| 2025-02-04 | 97.18 | 80.37 | +1.83 | AER ahead |
| 2025-02-03 | 97.47 | 84.12 | +1.34 | AER ahead |
| 2025-01-31 | 98.06 | 84.03 | +1.43 | AER ahead |
| 2025-01-30 | 97.86 | 86.26 | +1.11 | AER ahead |
| 2025-01-29 | 98.29 | 85.62 | +1.26 | AER ahead |
| 2025-01-28 | 97.73 | 84.77 | +1.32 | AER ahead |
| 2025-01-27 | 98.09 | 86.16 | +1.18 | AER ahead |
| 2025-01-24 | 97.44 | 86.53 | +1.06 | AER ahead |
| 2025-01-23 | 97.73 | 86.34 | +1.13 | AER ahead |
| 2025-01-22 | 97.33 | 86.90 | +1.01 | AER ahead |
| 2025-01-21 | 97.99 | 88.33 | +0.91 | AER ahead |
| 2025-01-17 | 98.16 | 83.77 | +1.57 | AER ahead |
| 2025-01-16 | 98.28 | 81.44 | +1.94 | AER ahead |
| 2025-01-15 | 99.24 | 79.85 | +2.33 | AER ahead |
| 2025-01-14 | 98.28 | 79.27 | +2.33 | AER ahead |
| 2025-01-13 | 97.14 | 77.96 | +2.43 | AER ahead |
| 2025-01-10 | 96.53 | 76.61 | +2.60 | AER ahead |
| 2025-01-08 | 98.63 | 77.91 | +2.70 | AER ahead |
| 2025-01-07 | 97.62 | 79.87 | +2.29 | AER ahead |
| 2025-01-06 | 97.61 | 79.63 | +2.35 | AER ahead |
| 2025-01-03 | 98.40 | 78.98 | +2.58 | AER ahead |
| 2025-01-02 | 98.85 | 78.54 | +2.74 | AER ahead |
| 2024-12-31 | 98.16 | 78.68 | +2.66 | AER ahead |
| 2024-12-30 | 97.98 | 79.23 | +2.57 | AER ahead |
| 2024-12-27 | 97.95 | 78.66 | +2.69 | AER ahead |
| 2024-12-26 | 97.93 | 79.35 | +2.62 | AER ahead |
| 2024-12-24 | 98.13 | 78.91 | +2.75 | AER ahead |
| 2024-12-23 | 97.50 | 79.25 | +2.64 | AER ahead |
| 2024-12-20 | 96.96 | 80.19 | +2.43 | AER ahead |
| 2024-12-19 | 95.48 | 78.88 | +2.47 | AER ahead |
| 2024-12-18 | 94.21 | 82.98 | +1.64 | AER ahead |
| 2024-12-17 | 97.56 | 82.91 | +2.12 | AER ahead |
| 2024-12-16 | 99.81 | 82.43 | +2.53 | AER ahead |
| 2024-12-13 | 98.12 | 84.03 | +2.08 | AER ahead |
| 2024-12-12 | 97.45 | 86.33 | +1.65 | AER ahead |
| 2024-12-11 | 98.79 | 86.89 | +1.76 | AER ahead |
| 2024-12-10 | 98.79 | 87.09 | +1.75 | AER ahead |
| 2024-12-09 | 97.72 | 103.03 | -0.64 | SUNB ahead |
| 2024-12-06 | 98.38 | 104.48 | -0.73 | SUNB ahead |
| 2024-12-05 | 98.73 | 104.28 | -0.66 | SUNB ahead |
| 2024-12-04 | 101.14 | 104.15 | -0.31 | near the usual relationship |
| 2024-12-03 | 99.64 | 103.64 | -0.44 | near the usual relationship |
| 2024-12-02 | 100.91 | 103.39 | -0.24 | near the usual relationship |
| 2024-11-29 | 101.92 | 103.90 | -0.16 | near the usual relationship |
| 2024-11-27 | 101.64 | 102.73 | -0.05 | near the usual relationship |
| 2024-11-26 | 102.88 | 101.15 | +0.32 | near the usual relationship |
| 2024-11-25 | 102.26 | 102.04 | +0.13 | near the usual relationship |
| 2024-11-22 | 100.55 | 103.60 | -0.28 | near the usual relationship |
| 2024-11-21 | 100.24 | 100.76 | +0.04 | near the usual relationship |
| 2024-11-20 | 97.70 | 100.54 | -0.25 | near the usual relationship |
| 2024-11-19 | 98.19 | 99.96 | -0.10 | near the usual relationship |
| 2024-11-18 | 97.38 | 101.30 | -0.37 | near the usual relationship |
| 2024-11-15 | 97.72 | 101.60 | -0.35 | near the usual relationship |
| 2024-11-14 | 97.58 | 102.25 | -0.44 | near the usual relationship |
| 2024-11-13 | 97.04 | 103.90 | -0.70 | SUNB ahead |
| 2024-11-12 | 97.87 | 99.69 | -0.08 | near the usual relationship |
| 2024-11-11 | 100.10 | 103.69 | -0.28 | near the usual relationship |
| 2024-11-08 | 100.03 | 103.69 | -0.28 | near the usual relationship |
| 2024-11-07 | 100.21 | 106.07 | -0.53 | SUNB ahead |
| 2024-11-06 | 101.55 | 103.51 | -0.07 | near the usual relationship |
| 2024-11-05 | 98.12 | 98.73 | +0.10 | near the usual relationship |
| 2024-11-04 | 96.36 | 96.28 | +0.19 | near the usual relationship |
| 2024-11-01 | 96.74 | 96.71 | +0.19 | near the usual relationship |
| 2024-10-31 | 95.96 | 95.65 | +0.23 | near the usual relationship |
| 2024-10-30 | 96.31 | 97.60 | +0.04 | near the usual relationship |
| 2024-10-29 | 98.18 | 96.87 | +0.36 | near the usual relationship |
| 2024-10-28 | 98.56 | 97.15 | +0.38 | near the usual relationship |
| 2024-10-25 | 97.88 | 97.82 | +0.22 | near the usual relationship |
| 2024-10-24 | 97.91 | 96.75 | +0.36 | near the usual relationship |
| 2024-10-23 | 98.12 | 97.19 | +0.34 | near the usual relationship |
| 2024-10-22 | 98.71 | 96.56 | +0.49 | near the usual relationship |
| 2024-10-21 | 98.95 | 97.89 | +0.37 | near the usual relationship |
| 2024-10-18 | 100.00 | 100.00 | +0.26 | near the usual relationship |
One-day company-specific moves (4+ standard deviations, which block ideas for 10 sessions): Dec 10, 2024 (AER +1.1%, SUNB -15.5%); Mar 5, 2026 (AER -6.0%, SUNB +7.2%). Upcoming earnings: AER Oct 28, 2026 (pre-market).
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
AER and SUNB at a glance
AER AerCap Holdings N.V.
- Listing
- NYSE · SEC CIK 1378789
- Industry
- Diversified Commercial Services · SIC 7359 Services-Equipment Rental & Leasing, NEC
- Market value
- $22.4B
- Price history
- 2,521 daily closes, Oct 12, 2016 to Oct 22, 2026
SUNB Sunbelt Rentals Holdings Inc.
- Listing
- NYSE · SEC CIK 2083785
- Industry
- Diversified Commercial Services · SIC 7359 Services-Equipment Rental & Leasing, NEC
- Market value
- $31.1B
- 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 AER and SUNB
| Pair | Status | Ahead now | Industry |
|---|---|---|---|
| URI / AER | Watchlist | URI by 1.18 sd | SIC 7359 Services-Equipment Rental & Leasing, NEC |
| URI / SUNB | Watchlist | URI by 0.93 sd | SIC 7359 Services-Equipment Rental & Leasing, NEC |
Follow the research behind the paper book
Boostio is a research-first platform in private beta: crypto candidates, daily market stories, public paper trading and now rival stocks. Exploring these pages stays free and open.
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.
