EMCOR Group Inc. vs Quanta Services Inc.
WatchlistEME / PWRPrices through Oct 22, 2026
Why these are rivals: #1 and #3 by market value ($91B vs $32B) in Nasdaq's "Engineering & Construction" industry; SEC SIC 1731 / 1731 (same major group); #1 and #3 by market value ($91B vs $32B) with SEC SIC 1731 (Electrical Work).
Rivals, but right now the price gap does not have a measured habit of closing, so there is no paper idea, whatever the gap.
- Mean reversion: ADF t-statistic of the spread: -1.88 (needs <= -2.873 (5% critical value))
Business leadership
PWR is the larger business
Annual revenue reported to the SEC. Scale, not market share.
| Year | EME | PWR | Larger |
|---|---|---|---|
| 2025 | $17.0B | $28.5B | PWR |
| 2024 | $14.6B | $23.7B | PWR |
| 2023 | $12.6B | $20.9B | PWR |
| 2022 | $11.1B | $17.1B | PWR |
| 2021 | $9.9B | $13.0B | PWR |
| 2020 | $8.8B | $11.2B | PWR |
PWR led in every year with figures for both. Market value: EME $31.6B, PWR $91.1B.
Stock leadership
PWR is ahead now
Measured against the pair's own last 252 trading days.
PWR leads EME by 0.82 standard deviations: +8.9% over its usual price ratio. 3 lead switches in the last year.
| Price change | 3 mo | 6 mo | 12 mo |
|---|---|---|---|
| EME | -11.3% | -24.4% | -4.3% |
| PWR | -11.7% | -12.8% | +26.3% |
Relationship
Not a measured twin today
Only these tests can make a pair tradable on paper.
- Pass
- Aligned sessions: 2521 (needs >= 254)
- Pass
- Co-movement: daily return correlation, 252 sessions: 0.77 (needs >= 0.60)
- Fail
- Mean reversion: ADF t-statistic of the spread: -1.88 (needs <= -2.873 (5% critical value))
- Pass
- Speed: half-life of the spread, sessions: 31.73 (needs <= 63)
- Data
- Both stocks current
The twins over two years
Prices side by side, and the gap between them
EME EMCOR Group Inc. PWR Quanta Services 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: EME relative to PWR, against the 252 sessions before each day. Above 0: EME ahead; below 0: PWR ahead. Lines at +/-2 (idea) and +/-4 (stop).
Data table (504 sessions)
| Date | EME index | PWR index | z | Ahead |
|---|---|---|---|---|
| 2026-10-22 | 145.55 | 175.79 | -0.82 | PWR ahead |
| 2026-10-21 | 154.09 | 191.28 | -1.09 | PWR ahead |
| 2026-10-20 | 154.82 | 189.65 | -0.97 | PWR ahead |
| 2026-10-19 | 157.97 | 196.78 | -1.14 | PWR ahead |
| 2026-10-16 | 159.05 | 201.06 | -1.29 | PWR ahead |
| 2026-10-15 | 161.44 | 204.35 | -1.31 | PWR ahead |
| 2026-10-14 | 164.27 | 210.18 | -1.42 | PWR ahead |
| 2026-10-13 | 171.03 | 219.20 | -1.45 | PWR ahead |
| 2026-10-12 | 171.72 | 221.08 | -1.50 | PWR ahead |
| 2026-10-09 | 173.99 | 224.63 | -1.54 | PWR ahead |
| 2026-10-08 | 171.52 | 218.07 | -1.40 | PWR ahead |
| 2026-10-07 | 172.93 | 223.08 | -1.55 | PWR ahead |
| 2026-10-06 | 181.72 | 228.96 | -1.34 | PWR ahead |
| 2026-10-05 | 171.73 | 217.46 | -1.40 | PWR ahead |
| 2026-10-02 | 173.36 | 215.28 | -1.22 | PWR ahead |
| 2026-10-01 | 169.49 | 210.84 | -1.25 | PWR ahead |
| 2026-09-30 | 166.28 | 204.45 | -1.15 | PWR ahead |
| 2026-09-29 | 167.94 | 207.40 | -1.20 | PWR ahead |
| 2026-09-28 | 168.71 | 205.03 | -1.06 | PWR ahead |
| 2026-09-25 | 167.98 | 206.55 | -1.17 | PWR ahead |
| 2026-09-24 | 165.72 | 204.76 | -1.22 | PWR ahead |
| 2026-09-23 | 165.69 | 202.02 | -1.11 | PWR ahead |
| 2026-09-22 | 166.73 | 204.48 | -1.17 | PWR ahead |
| 2026-09-21 | 166.99 | 204.48 | -1.16 | PWR ahead |
| 2026-09-18 | 165.31 | 202.60 | -1.18 | PWR ahead |
| 2026-09-17 | 160.72 | 196.18 | -1.15 | PWR ahead |
| 2026-09-16 | 162.97 | 197.05 | -1.07 | PWR ahead |
| 2026-09-15 | 162.10 | 195.17 | -1.04 | PWR ahead |
| 2026-09-14 | 165.23 | 197.93 | -1.00 | PWR ahead |
| 2026-09-11 | 172.05 | 207.01 | -1.05 | PWR ahead |
| 2026-09-10 | 164.92 | 196.88 | -0.98 | PWR ahead |
| 2026-09-09 | 166.24 | 199.50 | -1.04 | PWR ahead |
| 2026-09-08 | 170.40 | 203.34 | -0.99 | PWR ahead |
| 2026-09-04 | 166.21 | 198.69 | -1.01 | PWR ahead |
| 2026-09-03 | 163.38 | 197.30 | -1.11 | PWR ahead |
| 2026-09-02 | 161.82 | 194.35 | -1.07 | PWR ahead |
| 2026-09-01 | 162.04 | 194.54 | -1.07 | PWR ahead |
| 2026-08-31 | 161.89 | 193.17 | -1.03 | PWR ahead |
| 2026-08-28 | 163.13 | 191.78 | -0.91 | PWR ahead |
| 2026-08-27 | 170.81 | 197.86 | -0.79 | PWR ahead |
| 2026-08-26 | 168.29 | 196.24 | -0.85 | PWR ahead |
| 2026-08-25 | 163.06 | 192.12 | -0.95 | PWR ahead |
| 2026-08-24 | 168.58 | 196.26 | -0.85 | PWR ahead |
| 2026-08-21 | 171.16 | 203.44 | -1.04 | PWR ahead |
| 2026-08-20 | 173.53 | 210.80 | -1.23 | PWR ahead |
| 2026-08-19 | 177.59 | 215.55 | -1.23 | PWR ahead |
| 2026-08-18 | 181.72 | 221.51 | -1.28 | PWR ahead |
| 2026-08-17 | 190.10 | 229.84 | -1.22 | PWR ahead |
| 2026-08-14 | 184.31 | 218.21 | -1.05 | PWR ahead |
| 2026-08-13 | 183.20 | 214.08 | -0.95 | PWR ahead |
| 2026-08-12 | 183.67 | 215.74 | -1.00 | PWR ahead |
| 2026-08-11 | 180.03 | 213.38 | -1.08 | PWR ahead |
| 2026-08-10 | 178.37 | 210.28 | -1.05 | PWR ahead |
| 2026-08-07 | 180.04 | 213.78 | -1.11 | PWR ahead |
| 2026-08-06 | 178.17 | 212.51 | -1.16 | PWR ahead |
| 2026-08-05 | 181.20 | 217.33 | -1.22 | PWR ahead |
| 2026-08-04 | 180.69 | 220.51 | -1.37 | PWR ahead |
| 2026-08-03 | 180.15 | 216.44 | -1.25 | PWR ahead |
| 2026-07-31 | 175.75 | 212.35 | -1.31 | PWR ahead |
| 2026-07-30 | 176.83 | 209.37 | -1.15 | PWR ahead |
| 2026-07-29 | 148.21 | 178.55 | -1.31 | PWR ahead |
| 2026-07-28 | 155.56 | 187.21 | -1.31 | PWR ahead |
| 2026-07-27 | 163.70 | 197.37 | -1.34 | PWR ahead |
| 2026-07-24 | 164.16 | 199.14 | -1.40 | PWR ahead |
| 2026-07-23 | 169.50 | 208.04 | -1.51 | PWR ahead |
| 2026-07-22 | 166.43 | 204.65 | -1.54 | PWR ahead |
| 2026-07-21 | 167.56 | 203.39 | -1.44 | PWR ahead |
| 2026-07-20 | 163.98 | 201.28 | -1.55 | PWR ahead |
| 2026-07-17 | 164.01 | 200.00 | -1.51 | PWR ahead |
| 2026-07-16 | 165.30 | 200.79 | -1.49 | PWR ahead |
| 2026-07-15 | 169.64 | 206.46 | -1.52 | PWR ahead |
| 2026-07-14 | 170.75 | 210.31 | -1.64 | PWR ahead |
| 2026-07-13 | 168.58 | 205.78 | -1.57 | PWR ahead |
| 2026-07-10 | 172.30 | 209.55 | -1.56 | PWR ahead |
| 2026-07-09 | 172.66 | 212.61 | -1.68 | PWR ahead |
| 2026-07-08 | 169.48 | 212.02 | -1.85 | PWR ahead |
| 2026-07-07 | 169.34 | 208.99 | -1.74 | PWR ahead |
| 2026-07-06 | 173.51 | 214.48 | -1.77 | PWR ahead |
| 2026-07-02 | 170.73 | 212.65 | -1.86 | PWR ahead |
| 2026-07-01 | 177.27 | 220.00 | -1.85 | PWR ahead |
| 2026-06-30 | 182.90 | 229.12 | -1.96 | PWR ahead |
| 2026-06-29 | 179.49 | 227.34 | -2.08 | PWR ahead |
| 2026-06-26 | 175.89 | 218.88 | -1.93 | PWR ahead |
| 2026-06-25 | 190.12 | 228.65 | -1.62 | PWR ahead |
| 2026-06-24 | 186.71 | 223.34 | -1.58 | PWR ahead |
| 2026-06-23 | 184.82 | 223.47 | -1.70 | PWR ahead |
| 2026-06-22 | 191.49 | 235.51 | -1.88 | PWR ahead |
| 2026-06-18 | 184.38 | 223.45 | -1.75 | PWR ahead |
| 2026-06-17 | 182.37 | 227.46 | -2.05 | PWR ahead |
| 2026-06-16 | 183.98 | 228.88 | -2.05 | PWR ahead |
| 2026-06-15 | 185.63 | 230.49 | -2.05 | PWR ahead |
| 2026-06-12 | 181.39 | 225.20 | -2.07 | PWR ahead |
| 2026-06-11 | 178.85 | 217.42 | -1.87 | PWR ahead |
| 2026-06-10 | 171.18 | 207.12 | -1.84 | PWR ahead |
| 2026-06-09 | 182.43 | 220.18 | -1.83 | PWR ahead |
| 2026-06-08 | 181.56 | 220.77 | -1.92 | PWR ahead |
| 2026-06-05 | 180.16 | 221.18 | -2.04 | PWR ahead |
| 2026-06-04 | 186.32 | 228.84 | -2.07 | PWR ahead |
| 2026-06-03 | 185.03 | 227.72 | -2.11 | PWR ahead |
| 2026-06-02 | 182.32 | 224.67 | -2.15 | PWR ahead |
| 2026-06-01 | 183.13 | 218.75 | -1.84 | PWR ahead |
| 2026-05-29 | 182.22 | 226.47 | -2.29 | PWR ahead |
| 2026-05-28 | 186.99 | 232.32 | -2.32 | PWR ahead |
| 2026-05-27 | 188.49 | 233.44 | -2.32 | PWR ahead |
| 2026-05-26 | 189.85 | 236.16 | -2.40 | PWR ahead |
| 2026-05-22 | 187.09 | 230.20 | -2.31 | PWR ahead |
| 2026-05-21 | 187.16 | 228.12 | -2.23 | PWR ahead |
| 2026-05-20 | 188.03 | 225.90 | -2.09 | PWR ahead |
| 2026-05-19 | 188.29 | 227.23 | -2.16 | PWR ahead |
| 2026-05-18 | 193.32 | 230.07 | -2.02 | PWR ahead |
| 2026-05-15 | 201.24 | 245.01 | -2.31 | PWR ahead |
| 2026-05-14 | 204.97 | 248.22 | -2.28 | PWR ahead |
| 2026-05-13 | 203.42 | 246.20 | -2.30 | PWR ahead |
| 2026-05-12 | 203.84 | 243.68 | -2.17 | PWR ahead |
| 2026-05-11 | 205.29 | 248.63 | -2.36 | PWR ahead |
| 2026-05-08 | 203.12 | 237.06 | -1.92 | PWR ahead |
| 2026-05-07 | 203.65 | 238.88 | -2.00 | PWR ahead |
| 2026-05-06 | 207.99 | 249.86 | -2.33 | PWR ahead |
| 2026-05-05 | 205.68 | 245.52 | -2.27 | PWR ahead |
| 2026-05-04 | 200.61 | 240.98 | -2.37 | PWR ahead |
| 2026-05-01 | 199.12 | 236.17 | -2.23 | PWR ahead |
| 2026-04-30 | 196.52 | 231.57 | -2.18 | PWR ahead |
| 2026-04-29 | 183.67 | 200.02 | -1.17 | PWR ahead |
| 2026-04-28 | 190.37 | 200.76 | -0.76 | PWR ahead |
| 2026-04-27 | 195.14 | 202.78 | -0.57 | PWR ahead |
| 2026-04-24 | 191.72 | 198.82 | -0.54 | PWR ahead |
| 2026-04-23 | 192.43 | 201.56 | -0.67 | PWR ahead |
| 2026-04-22 | 189.54 | 195.30 | -0.46 | near the usual relationship |
| 2026-04-21 | 184.69 | 192.79 | -0.63 | PWR ahead |
| 2026-04-20 | 183.17 | 192.50 | -0.72 | PWR ahead |
| 2026-04-17 | 177.65 | 191.52 | -1.06 | PWR ahead |
| 2026-04-16 | 174.60 | 186.92 | -0.97 | PWR ahead |
| 2026-04-15 | 177.11 | 188.32 | -0.88 | PWR ahead |
| 2026-04-14 | 179.44 | 189.14 | -0.77 | PWR ahead |
| 2026-04-13 | 179.00 | 189.59 | -0.84 | PWR ahead |
| 2026-04-10 | 176.85 | 186.26 | -0.77 | PWR ahead |
| 2026-04-09 | 176.40 | 185.21 | -0.73 | PWR ahead |
| 2026-04-08 | 173.93 | 183.36 | -0.79 | PWR ahead |
| 2026-04-07 | 165.39 | 176.78 | -0.97 | PWR ahead |
| 2026-04-06 | 166.95 | 176.40 | -0.83 | PWR ahead |
| 2026-04-02 | 166.68 | 178.39 | -1.00 | PWR ahead |
| 2026-04-01 | 167.40 | 178.23 | -0.94 | PWR ahead |
| 2026-03-31 | 162.72 | 174.70 | -1.05 | PWR ahead |
| 2026-03-30 | 154.52 | 169.85 | -1.38 | PWR ahead |
| 2026-03-27 | 161.52 | 175.00 | -1.19 | PWR ahead |
| 2026-03-26 | 160.07 | 173.62 | -1.22 | PWR ahead |
| 2026-03-25 | 168.55 | 182.49 | -1.20 | PWR ahead |
| 2026-03-24 | 167.78 | 184.06 | -1.39 | PWR ahead |
| 2026-03-23 | 164.12 | 180.56 | -1.44 | PWR ahead |
| 2026-03-20 | 159.77 | 176.72 | -1.53 | PWR ahead |
| 2026-03-19 | 165.59 | 183.90 | -1.60 | PWR ahead |
| 2026-03-18 | 162.57 | 182.01 | -1.72 | PWR ahead |
| 2026-03-17 | 160.57 | 181.89 | -1.91 | PWR ahead |
| 2026-03-16 | 160.12 | 182.65 | -2.03 | PWR ahead |
| 2026-03-13 | 156.46 | 177.88 | -2.00 | PWR ahead |
| 2026-03-12 | 156.59 | 180.39 | -2.22 | PWR ahead |
| 2026-03-11 | 158.72 | 180.64 | -2.08 | PWR ahead |
| 2026-03-10 | 159.43 | 179.48 | -1.94 | PWR ahead |
| 2026-03-09 | 158.50 | 180.75 | -2.16 | PWR ahead |
| 2026-03-06 | 155.55 | 171.89 | -1.72 | PWR ahead |
| 2026-03-05 | 158.46 | 174.76 | -1.71 | PWR ahead |
| 2026-03-04 | 163.28 | 180.86 | -1.79 | PWR ahead |
| 2026-03-03 | 162.27 | 180.10 | -1.84 | PWR ahead |
| 2026-03-02 | 162.16 | 182.22 | -2.05 | PWR ahead |
| 2026-02-27 | 159.70 | 179.17 | -2.05 | PWR ahead |
| 2026-02-26 | 164.45 | 179.80 | -1.68 | PWR ahead |
| 2026-02-25 | 176.71 | 179.07 | -0.55 | PWR ahead |
| 2026-02-24 | 177.81 | 180.80 | -0.60 | PWR ahead |
| 2026-02-23 | 177.78 | 174.73 | -0.09 | near the usual relationship |
| 2026-02-20 | 179.13 | 175.86 | -0.08 | near the usual relationship |
| 2026-02-19 | 177.09 | 176.28 | -0.29 | near the usual relationship |
| 2026-02-18 | 172.58 | 165.24 | +0.30 | near the usual relationship |
| 2026-02-17 | 175.76 | 167.10 | +0.41 | near the usual relationship |
| 2026-02-13 | 176.49 | 166.76 | +0.50 | EME ahead |
| 2026-02-12 | 172.55 | 164.15 | +0.40 | near the usual relationship |
| 2026-02-11 | 178.19 | 166.72 | +0.65 | EME ahead |
| 2026-02-10 | 171.70 | 162.48 | +0.48 | near the usual relationship |
| 2026-02-09 | 171.08 | 163.73 | +0.31 | near the usual relationship |
| 2026-02-06 | 168.46 | 161.68 | +0.27 | near the usual relationship |
| 2026-02-05 | 158.17 | 152.01 | +0.25 | near the usual relationship |
| 2026-02-04 | 156.17 | 147.83 | +0.48 | near the usual relationship |
| 2026-02-03 | 164.09 | 155.47 | +0.47 | near the usual relationship |
| 2026-02-02 | 161.25 | 152.03 | +0.55 | EME ahead |
| 2026-01-30 | 158.84 | 151.03 | +0.42 | near the usual relationship |
| 2026-01-29 | 160.97 | 153.83 | +0.35 | near the usual relationship |
| 2026-01-28 | 160.30 | 153.14 | +0.35 | near the usual relationship |
| 2026-01-27 | 157.86 | 152.50 | +0.19 | near the usual relationship |
| 2026-01-26 | 155.79 | 149.80 | +0.26 | near the usual relationship |
| 2026-01-23 | 153.00 | 149.16 | +0.05 | near the usual relationship |
| 2026-01-22 | 154.91 | 149.16 | +0.24 | near the usual relationship |
| 2026-01-21 | 156.19 | 150.58 | +0.22 | near the usual relationship |
| 2026-01-20 | 151.58 | 147.48 | +0.08 | near the usual relationship |
| 2026-01-16 | 153.98 | 148.52 | +0.21 | near the usual relationship |
| 2026-01-15 | 150.33 | 142.44 | +0.47 | near the usual relationship |
| 2026-01-14 | 145.62 | 139.07 | +0.36 | near the usual relationship |
| 2026-01-13 | 147.78 | 141.34 | +0.34 | near the usual relationship |
| 2026-01-12 | 145.60 | 137.67 | +0.51 | EME ahead |
| 2026-01-09 | 142.43 | 134.46 | +0.53 | EME ahead |
| 2026-01-08 | 138.46 | 131.47 | +0.45 | near the usual relationship |
| 2026-01-07 | 143.47 | 139.02 | +0.15 | near the usual relationship |
| 2026-01-06 | 144.56 | 139.44 | +0.22 | near the usual relationship |
| 2026-01-05 | 144.04 | 138.68 | +0.25 | near the usual relationship |
| 2026-01-02 | 140.75 | 139.91 | -0.23 | near the usual relationship |
| 2025-12-31 | 134.83 | 134.30 | -0.26 | near the usual relationship |
| 2025-12-30 | 136.05 | 136.45 | -0.37 | near the usual relationship |
| 2025-12-29 | 137.36 | 137.15 | -0.30 | near the usual relationship |
| 2025-12-26 | 138.20 | 137.67 | -0.26 | near the usual relationship |
| 2025-12-24 | 137.98 | 137.96 | -0.31 | near the usual relationship |
| 2025-12-23 | 137.90 | 138.48 | -0.38 | near the usual relationship |
| 2025-12-22 | 137.05 | 137.79 | -0.40 | near the usual relationship |
| 2025-12-19 | 134.75 | 135.76 | -0.43 | near the usual relationship |
| 2025-12-18 | 135.07 | 134.06 | -0.20 | near the usual relationship |
| 2025-12-17 | 131.46 | 131.81 | -0.35 | near the usual relationship |
| 2025-12-16 | 137.65 | 139.53 | -0.52 | PWR ahead |
| 2025-12-15 | 137.54 | 138.69 | -0.44 | near the usual relationship |
| 2025-12-12 | 137.45 | 139.41 | -0.53 | PWR ahead |
| 2025-12-11 | 140.96 | 148.57 | -1.11 | PWR ahead |
| 2025-12-10 | 138.19 | 147.07 | -1.27 | PWR ahead |
| 2025-12-09 | 137.47 | 145.72 | -1.22 | PWR ahead |
| 2025-12-08 | 138.67 | 147.35 | -1.27 | PWR ahead |
| 2025-12-05 | 137.44 | 146.57 | -1.33 | PWR ahead |
| 2025-12-04 | 140.03 | 147.91 | -1.19 | PWR ahead |
| 2025-12-03 | 134.88 | 145.10 | -1.49 | PWR ahead |
| 2025-12-02 | 133.64 | 144.69 | -1.60 | PWR ahead |
| 2025-12-01 | 133.95 | 143.90 | -1.49 | PWR ahead |
| 2025-11-28 | 135.56 | 147.92 | -1.75 | PWR ahead |
| 2025-11-26 | 134.60 | 146.51 | -1.73 | PWR ahead |
| 2025-11-25 | 133.47 | 143.23 | -1.52 | PWR ahead |
| 2025-11-24 | 132.86 | 140.85 | -1.34 | PWR ahead |
| 2025-11-21 | 128.17 | 136.87 | -1.47 | PWR ahead |
| 2025-11-20 | 128.51 | 136.76 | -1.43 | PWR ahead |
| 2025-11-19 | 133.52 | 141.75 | -1.40 | PWR ahead |
| 2025-11-18 | 135.45 | 139.78 | -0.96 | PWR ahead |
| 2025-11-17 | 134.75 | 135.83 | -0.59 | PWR ahead |
| 2025-11-14 | 136.61 | 136.60 | -0.46 | near the usual relationship |
| 2025-11-13 | 136.41 | 135.85 | -0.40 | near the usual relationship |
| 2025-11-12 | 141.79 | 143.00 | -0.61 | PWR ahead |
| 2025-11-11 | 141.24 | 142.84 | -0.66 | PWR ahead |
| 2025-11-10 | 144.65 | 143.31 | -0.34 | near the usual relationship |
| 2025-11-07 | 143.11 | 141.60 | -0.32 | near the usual relationship |
| 2025-11-06 | 144.08 | 140.93 | -0.14 | near the usual relationship |
| 2025-11-05 | 148.86 | 144.29 | +0.00 | near the usual relationship |
| 2025-11-04 | 144.25 | 139.58 | +0.03 | near the usual relationship |
| 2025-11-03 | 148.44 | 143.45 | +0.06 | near the usual relationship |
| 2025-10-31 | 148.94 | 142.91 | +0.17 | near the usual relationship |
| 2025-10-30 | 142.81 | 144.41 | -0.65 | PWR ahead |
| 2025-10-29 | 171.24 | 142.77 | +2.42 | EME ahead |
| 2025-10-28 | 165.61 | 139.87 | +2.24 | EME ahead |
| 2025-10-27 | 166.36 | 140.59 | +2.27 | EME ahead |
| 2025-10-24 | 164.91 | 140.30 | +2.19 | EME ahead |
| 2025-10-23 | 153.45 | 135.98 | +1.54 | EME ahead |
| 2025-10-22 | 146.10 | 131.16 | +1.34 | EME ahead |
| 2025-10-21 | 152.06 | 139.19 | +1.03 | EME ahead |
| 2025-10-20 | 154.31 | 140.24 | +1.15 | EME ahead |
| 2025-10-17 | 151.85 | 138.05 | +1.16 | EME ahead |
| 2025-10-16 | 151.46 | 139.22 | +0.98 | EME ahead |
| 2025-10-15 | 152.21 | 139.03 | +1.09 | EME ahead |
| 2025-10-14 | 148.57 | 137.33 | +0.90 | EME ahead |
| 2025-10-13 | 149.21 | 137.14 | +1.00 | EME ahead |
| 2025-10-10 | 146.28 | 132.88 | +1.21 | EME ahead |
| 2025-10-09 | 150.05 | 136.80 | +1.16 | EME ahead |
| 2025-10-08 | 153.18 | 141.10 | +0.99 | EME ahead |
| 2025-10-07 | 148.34 | 134.12 | +1.31 | EME ahead |
| 2025-10-06 | 147.66 | 136.12 | +1.00 | EME ahead |
| 2025-10-03 | 144.23 | 134.02 | +0.87 | EME ahead |
| 2025-10-02 | 145.52 | 133.92 | +1.04 | EME ahead |
| 2025-10-01 | 144.34 | 133.85 | +0.92 | EME ahead |
| 2025-09-30 | 143.15 | 131.87 | +1.04 | EME ahead |
| 2025-09-29 | 141.19 | 130.18 | +1.03 | EME ahead |
| 2025-09-26 | 141.18 | 129.01 | +1.19 | EME ahead |
| 2025-09-25 | 137.74 | 127.41 | +0.99 | EME ahead |
| 2025-09-24 | 138.09 | 128.19 | +0.93 | EME ahead |
| 2025-09-23 | 142.09 | 123.95 | +2.01 | EME ahead |
| 2025-09-22 | 144.54 | 126.01 | +2.05 | EME ahead |
| 2025-09-19 | 139.29 | 123.65 | +1.75 | EME ahead |
| 2025-09-18 | 138.61 | 124.30 | +1.59 | EME ahead |
| 2025-09-17 | 135.92 | 119.65 | +1.93 | EME ahead |
| 2025-09-16 | 136.42 | 120.36 | +1.92 | EME ahead |
| 2025-09-15 | 138.57 | 122.72 | +1.87 | EME ahead |
| 2025-09-12 | 138.64 | 121.72 | +2.05 | EME ahead |
| 2025-09-11 | 141.05 | 123.98 | +2.05 | EME ahead |
| 2025-09-10 | 139.82 | 124.15 | +1.89 | EME ahead |
| 2025-09-09 | 137.31 | 118.84 | +2.40 | EME ahead |
| 2025-09-08 | 136.99 | 119.49 | +2.28 | EME ahead |
| 2025-09-05 | 137.83 | 118.53 | +2.59 | EME ahead |
| 2025-09-04 | 141.18 | 119.67 | +2.92 | EME ahead |
| 2025-09-03 | 138.25 | 119.14 | +2.65 | EME ahead |
| 2025-09-02 | 136.73 | 119.22 | +2.47 | EME ahead |
| 2025-08-29 | 136.64 | 120.27 | +2.32 | EME ahead |
| 2025-08-28 | 139.56 | 122.81 | +2.35 | EME ahead |
| 2025-08-27 | 137.52 | 121.41 | +2.32 | EME ahead |
| 2025-08-26 | 136.39 | 122.16 | +2.06 | EME ahead |
| 2025-08-25 | 134.25 | 120.38 | +2.06 | EME ahead |
| 2025-08-22 | 134.49 | 120.86 | +2.04 | EME ahead |
| 2025-08-21 | 134.63 | 120.35 | +2.17 | EME ahead |
| 2025-08-20 | 133.36 | 119.60 | +2.13 | EME ahead |
| 2025-08-19 | 133.80 | 120.68 | +2.04 | EME ahead |
| 2025-08-18 | 135.08 | 121.97 | +2.04 | EME ahead |
| 2025-08-15 | 133.47 | 121.17 | +1.95 | EME ahead |
| 2025-08-14 | 134.38 | 120.12 | +2.31 | EME ahead |
| 2025-08-13 | 135.92 | 120.90 | +2.45 | EME ahead |
| 2025-08-12 | 139.41 | 124.60 | +2.38 | EME ahead |
| 2025-08-11 | 135.47 | 122.23 | +2.20 | EME ahead |
| 2025-08-08 | 136.25 | 122.87 | +2.25 | EME ahead |
| 2025-08-07 | 136.09 | 123.25 | +2.18 | EME ahead |
| 2025-08-06 | 137.14 | 123.30 | +2.38 | EME ahead |
| 2025-08-05 | 137.74 | 123.82 | +2.42 | EME ahead |
| 2025-08-04 | 138.67 | 125.25 | +2.35 | EME ahead |
| 2025-08-01 | 137.67 | 125.74 | +2.12 | EME ahead |
| 2025-07-31 | 138.29 | 129.23 | +1.60 | EME ahead |
| 2025-07-30 | 140.90 | 130.81 | +1.77 | EME ahead |
| 2025-07-29 | 140.22 | 130.78 | +1.68 | EME ahead |
| 2025-07-28 | 139.21 | 131.09 | +1.47 | EME ahead |
| 2025-07-25 | 139.96 | 134.18 | +1.05 | EME ahead |
| 2025-07-24 | 127.56 | 129.58 | -0.32 | near the usual relationship |
| 2025-07-23 | 126.43 | 128.91 | -0.41 | near the usual relationship |
| 2025-07-22 | 123.19 | 125.67 | -0.42 | near the usual relationship |
| 2025-07-21 | 123.52 | 126.85 | -0.58 | PWR ahead |
| 2025-07-18 | 124.64 | 128.33 | -0.65 | PWR ahead |
| 2025-07-17 | 123.25 | 126.61 | -0.60 | PWR ahead |
| 2025-07-16 | 121.94 | 123.82 | -0.32 | near the usual relationship |
| 2025-07-15 | 121.16 | 123.00 | -0.32 | near the usual relationship |
| 2025-07-14 | 122.73 | 123.14 | -0.04 | near the usual relationship |
| 2025-07-11 | 122.14 | 122.12 | +0.04 | near the usual relationship |
| 2025-07-10 | 120.68 | 120.94 | -0.01 | near the usual relationship |
| 2025-07-09 | 120.39 | 121.59 | -0.20 | near the usual relationship |
| 2025-07-08 | 119.31 | 120.14 | -0.13 | near the usual relationship |
| 2025-07-07 | 121.47 | 122.76 | -0.21 | near the usual relationship |
| 2025-07-03 | 120.60 | 122.99 | -0.43 | near the usual relationship |
| 2025-07-02 | 119.41 | 118.82 | +0.15 | near the usual relationship |
| 2025-07-01 | 117.00 | 118.46 | -0.26 | near the usual relationship |
| 2025-06-30 | 117.88 | 120.30 | -0.44 | near the usual relationship |
| 2025-06-27 | 116.94 | 121.32 | -0.83 | PWR ahead |
| 2025-06-26 | 112.62 | 120.75 | -1.61 | PWR ahead |
| 2025-06-25 | 110.76 | 119.03 | -1.68 | PWR ahead |
| 2025-06-24 | 110.34 | 118.45 | -1.66 | PWR ahead |
| 2025-06-23 | 109.01 | 116.38 | -1.54 | PWR ahead |
| 2025-06-20 | 106.90 | 114.80 | -1.69 | PWR ahead |
| 2025-06-18 | 106.94 | 114.69 | -1.66 | PWR ahead |
| 2025-06-17 | 106.09 | 114.11 | -1.75 | PWR ahead |
| 2025-06-16 | 107.07 | 115.12 | -1.75 | PWR ahead |
| 2025-06-13 | 105.33 | 114.00 | -1.92 | PWR ahead |
| 2025-06-12 | 104.67 | 114.12 | -2.12 | PWR ahead |
| 2025-06-11 | 104.00 | 113.21 | -2.10 | PWR ahead |
| 2025-06-10 | 102.69 | 110.97 | -1.94 | PWR ahead |
| 2025-06-09 | 104.42 | 113.17 | -2.02 | PWR ahead |
| 2025-06-06 | 107.73 | 114.98 | -1.64 | PWR ahead |
| 2025-06-05 | 106.68 | 114.42 | -1.77 | PWR ahead |
| 2025-06-04 | 106.37 | 114.27 | -1.83 | PWR ahead |
| 2025-06-03 | 106.62 | 113.43 | -1.59 | PWR ahead |
| 2025-06-02 | 103.48 | 109.95 | -1.57 | PWR ahead |
| 2025-05-30 | 103.99 | 109.00 | -1.23 | PWR ahead |
| 2025-05-29 | 103.20 | 108.10 | -1.22 | PWR ahead |
| 2025-05-28 | 103.39 | 108.29 | -1.22 | PWR ahead |
| 2025-05-27 | 104.82 | 108.93 | -1.02 | PWR ahead |
| 2025-05-23 | 102.11 | 106.71 | -1.17 | PWR ahead |
| 2025-05-22 | 101.01 | 105.27 | -1.11 | PWR ahead |
| 2025-05-21 | 102.21 | 108.58 | -1.62 | PWR ahead |
| 2025-05-20 | 104.14 | 109.77 | -1.42 | PWR ahead |
| 2025-05-19 | 103.58 | 109.69 | -1.55 | PWR ahead |
| 2025-05-16 | 103.68 | 109.71 | -1.55 | PWR ahead |
| 2025-05-15 | 102.33 | 108.30 | -1.56 | PWR ahead |
| 2025-05-14 | 102.83 | 109.19 | -1.66 | PWR ahead |
| 2025-05-13 | 104.11 | 109.33 | -1.37 | PWR ahead |
| 2025-05-12 | 100.79 | 105.89 | -1.39 | PWR ahead |
| 2025-05-09 | 96.85 | 103.70 | -1.91 | PWR ahead |
| 2025-05-08 | 97.02 | 103.81 | -1.90 | PWR ahead |
| 2025-05-07 | 95.68 | 102.97 | -2.08 | PWR ahead |
| 2025-05-06 | 95.44 | 101.08 | -1.65 | PWR ahead |
| 2025-05-05 | 96.09 | 102.66 | -1.91 | PWR ahead |
| 2025-05-02 | 94.81 | 102.19 | -2.16 | PWR ahead |
| 2025-05-01 | 90.92 | 102.44 | -3.47 | PWR ahead |
| 2025-04-30 | 88.31 | 93.13 | -1.60 | PWR ahead |
| 2025-04-29 | 91.03 | 93.03 | -0.71 | PWR ahead |
| 2025-04-28 | 90.42 | 92.47 | -0.72 | PWR ahead |
| 2025-04-25 | 90.41 | 91.43 | -0.40 | near the usual relationship |
| 2025-04-24 | 88.29 | 89.77 | -0.54 | PWR ahead |
| 2025-04-23 | 84.66 | 87.28 | -0.91 | PWR ahead |
| 2025-04-22 | 82.25 | 83.32 | -0.42 | near the usual relationship |
| 2025-04-21 | 79.94 | 80.75 | -0.34 | near the usual relationship |
| 2025-04-17 | 83.49 | 85.03 | -0.56 | PWR ahead |
| 2025-04-16 | 84.28 | 85.74 | -0.53 | PWR ahead |
| 2025-04-15 | 85.97 | 86.88 | -0.34 | near the usual relationship |
| 2025-04-14 | 85.02 | 87.28 | -0.76 | PWR ahead |
| 2025-04-11 | 84.57 | 85.78 | -0.43 | near the usual relationship |
| 2025-04-10 | 82.69 | 83.59 | -0.34 | near the usual relationship |
| 2025-04-09 | 86.17 | 85.79 | +0.08 | near the usual relationship |
| 2025-04-08 | 78.08 | 77.97 | -0.01 | near the usual relationship |
| 2025-04-07 | 77.24 | 78.02 | -0.30 | near the usual relationship |
| 2025-04-04 | 75.38 | 76.20 | -0.32 | near the usual relationship |
| 2025-04-03 | 78.14 | 80.20 | -0.71 | PWR ahead |
| 2025-04-02 | 84.84 | 84.19 | +0.18 | near the usual relationship |
| 2025-04-01 | 82.76 | 82.06 | +0.20 | near the usual relationship |
| 2025-03-31 | 81.46 | 80.88 | +0.18 | near the usual relationship |
| 2025-03-28 | 81.74 | 80.91 | +0.26 | near the usual relationship |
| 2025-03-27 | 83.60 | 81.10 | +0.78 | EME ahead |
| 2025-03-26 | 86.45 | 82.94 | +1.08 | EME ahead |
| 2025-03-25 | 90.86 | 87.90 | +0.87 | EME ahead |
| 2025-03-24 | 90.99 | 88.59 | +0.71 | EME ahead |
| 2025-03-21 | 87.09 | 85.35 | +0.55 | EME ahead |
| 2025-03-20 | 88.05 | 86.26 | +0.57 | EME ahead |
| 2025-03-19 | 87.83 | 86.04 | +0.58 | EME ahead |
| 2025-03-18 | 85.19 | 83.80 | +0.48 | near the usual relationship |
| 2025-03-17 | 87.07 | 85.09 | +0.65 | EME ahead |
| 2025-03-14 | 85.62 | 82.99 | +0.86 | EME ahead |
| 2025-03-13 | 82.19 | 79.64 | +0.87 | EME ahead |
| 2025-03-12 | 84.28 | 79.26 | +1.61 | EME ahead |
| 2025-03-11 | 82.12 | 78.29 | +1.29 | EME ahead |
| 2025-03-10 | 79.60 | 75.32 | +1.48 | EME ahead |
| 2025-03-07 | 82.72 | 78.28 | +1.49 | EME ahead |
| 2025-03-06 | 82.62 | 76.65 | +1.99 | EME ahead |
| 2025-03-05 | 86.53 | 80.55 | +1.92 | EME ahead |
| 2025-03-04 | 85.53 | 79.43 | +1.99 | EME ahead |
| 2025-03-03 | 87.22 | 79.84 | +2.35 | EME ahead |
| 2025-02-28 | 90.12 | 82.61 | +2.26 | EME ahead |
| 2025-02-27 | 88.75 | 82.50 | +1.89 | EME ahead |
| 2025-02-26 | 92.76 | 85.53 | +2.02 | EME ahead |
| 2025-02-25 | 87.72 | 84.13 | +1.14 | EME ahead |
| 2025-02-24 | 86.27 | 82.53 | +1.18 | EME ahead |
| 2025-02-21 | 89.11 | 85.71 | +1.07 | EME ahead |
| 2025-02-20 | 93.59 | 89.46 | +1.19 | EME ahead |
| 2025-02-19 | 95.84 | 92.94 | +0.91 | EME ahead |
| 2025-02-18 | 95.63 | 91.51 | +1.15 | EME ahead |
| 2025-02-14 | 93.95 | 90.83 | +0.96 | EME ahead |
| 2025-02-13 | 94.23 | 92.55 | +0.67 | EME ahead |
| 2025-02-12 | 95.54 | 94.93 | +0.47 | near the usual relationship |
| 2025-02-11 | 98.35 | 96.35 | +0.72 | EME ahead |
| 2025-02-10 | 102.81 | 98.85 | +1.03 | EME ahead |
| 2025-02-07 | 101.77 | 99.35 | +0.78 | EME ahead |
| 2025-02-06 | 102.96 | 98.98 | +1.02 | EME ahead |
| 2025-02-05 | 100.64 | 95.06 | +1.30 | EME ahead |
| 2025-02-04 | 98.07 | 95.45 | +0.83 | EME ahead |
| 2025-02-03 | 98.82 | 96.04 | +0.86 | EME ahead |
| 2025-01-31 | 98.75 | 97.88 | +0.57 | EME ahead |
| 2025-01-30 | 98.89 | 98.42 | +0.51 | EME ahead |
| 2025-01-29 | 96.84 | 94.76 | +0.76 | EME ahead |
| 2025-01-28 | 96.59 | 93.54 | +0.91 | EME ahead |
| 2025-01-27 | 94.77 | 93.05 | +0.72 | EME ahead |
| 2025-01-24 | 117.17 | 113.92 | +0.86 | EME ahead |
| 2025-01-23 | 117.20 | 112.88 | +0.98 | EME ahead |
| 2025-01-22 | 118.13 | 113.70 | +0.99 | EME ahead |
| 2025-01-21 | 116.18 | 113.91 | +0.75 | EME ahead |
| 2025-01-17 | 111.62 | 107.38 | +0.99 | EME ahead |
| 2025-01-16 | 112.62 | 106.97 | +1.15 | EME ahead |
| 2025-01-15 | 110.64 | 104.82 | +1.19 | EME ahead |
| 2025-01-14 | 108.63 | 101.79 | +1.32 | EME ahead |
| 2025-01-13 | 103.09 | 99.99 | +0.90 | EME ahead |
| 2025-01-10 | 102.93 | 99.75 | +0.91 | EME ahead |
| 2025-01-08 | 104.88 | 99.34 | +1.17 | EME ahead |
| 2025-01-07 | 103.62 | 101.76 | +0.76 | EME ahead |
| 2025-01-06 | 105.60 | 104.39 | +0.69 | EME ahead |
| 2025-01-03 | 104.39 | 103.90 | +0.62 | EME ahead |
| 2025-01-02 | 100.86 | 100.39 | +0.62 | EME ahead |
| 2024-12-31 | 100.04 | 100.57 | +0.51 | EME ahead |
| 2024-12-30 | 100.77 | 101.50 | +0.50 | EME ahead |
| 2024-12-27 | 101.24 | 102.82 | +0.42 | near the usual relationship |
| 2024-12-26 | 102.83 | 105.20 | +0.35 | near the usual relationship |
| 2024-12-24 | 102.15 | 105.26 | +0.29 | near the usual relationship |
| 2024-12-23 | 102.10 | 104.17 | +0.39 | near the usual relationship |
| 2024-12-20 | 102.66 | 104.50 | +0.42 | near the usual relationship |
| 2024-12-19 | 102.33 | 102.65 | +0.56 | EME ahead |
| 2024-12-18 | 102.35 | 102.02 | +0.63 | EME ahead |
| 2024-12-17 | 105.10 | 107.05 | +0.44 | near the usual relationship |
| 2024-12-16 | 106.79 | 108.98 | +0.43 | near the usual relationship |
| 2024-12-13 | 105.63 | 107.42 | +0.46 | near the usual relationship |
| 2024-12-12 | 105.84 | 106.95 | +0.53 | EME ahead |
| 2024-12-11 | 106.00 | 106.36 | +0.59 | EME ahead |
| 2024-12-10 | 104.53 | 101.79 | +0.86 | EME ahead |
| 2024-12-09 | 105.48 | 102.45 | +0.89 | EME ahead |
| 2024-12-06 | 112.19 | 105.79 | +1.15 | EME ahead |
| 2024-12-05 | 113.17 | 106.59 | +1.17 | EME ahead |
| 2024-12-04 | 113.44 | 106.17 | +1.23 | EME ahead |
| 2024-12-03 | 112.31 | 108.10 | +1.00 | EME ahead |
| 2024-12-02 | 111.32 | 108.93 | +0.87 | EME ahead |
| 2024-11-29 | 112.43 | 109.63 | +0.90 | EME ahead |
| 2024-11-27 | 111.95 | 109.44 | +0.89 | EME ahead |
| 2024-11-26 | 113.45 | 110.29 | +0.94 | EME ahead |
| 2024-11-25 | 112.62 | 109.12 | +0.98 | EME ahead |
| 2024-11-22 | 111.28 | 108.80 | +0.91 | EME ahead |
| 2024-11-21 | 116.13 | 108.19 | +1.33 | EME ahead |
| 2024-11-20 | 113.68 | 105.75 | +1.36 | EME ahead |
| 2024-11-19 | 113.28 | 105.25 | +1.38 | EME ahead |
| 2024-11-18 | 110.38 | 104.50 | +1.23 | EME ahead |
| 2024-11-15 | 109.94 | 102.88 | +1.34 | EME ahead |
| 2024-11-14 | 109.78 | 103.05 | +1.32 | EME ahead |
| 2024-11-13 | 110.27 | 104.01 | +1.29 | EME ahead |
| 2024-11-12 | 113.30 | 104.14 | +1.53 | EME ahead |
| 2024-11-11 | 114.70 | 104.91 | +1.59 | EME ahead |
| 2024-11-08 | 113.31 | 105.32 | +1.46 | EME ahead |
| 2024-11-07 | 111.15 | 102.10 | +1.58 | EME ahead |
| 2024-11-06 | 110.61 | 98.90 | +1.83 | EME ahead |
| 2024-11-05 | 104.86 | 100.11 | +1.27 | EME ahead |
| 2024-11-04 | 101.71 | 96.83 | +1.30 | EME ahead |
| 2024-11-01 | 99.88 | 96.57 | +1.18 | EME ahead |
| 2024-10-31 | 98.31 | 95.98 | +1.10 | EME ahead |
| 2024-10-30 | 95.16 | 99.16 | +0.53 | EME ahead |
| 2024-10-29 | 96.26 | 99.73 | +0.58 | EME ahead |
| 2024-10-28 | 95.11 | 99.71 | +0.48 | near the usual relationship |
| 2024-10-25 | 94.45 | 98.06 | +0.57 | EME ahead |
| 2024-10-24 | 98.32 | 98.60 | +0.89 | EME ahead |
| 2024-10-23 | 98.21 | 97.57 | +0.98 | EME ahead |
| 2024-10-22 | 98.72 | 99.59 | +0.85 | EME ahead |
| 2024-10-21 | 100.30 | 101.07 | +0.86 | EME ahead |
| 2024-10-18 | 100.00 | 100.00 | +0.94 | EME ahead |
One-day company-specific moves (4+ standard deviations, which block ideas for 10 sessions): May 1, 2025 (EME +3.0%, PWR +10.0%); Sep 24, 2025 (EME -2.8%, PWR +3.4%); Oct 30, 2025 (EME -16.6%, PWR +1.1%); Feb 26, 2026 (EME -6.9%, PWR +0.4%); Apr 30, 2026 (EME +7.0%, PWR +15.8%). Upcoming earnings: EME Oct 29, 2026 (pre-market); PWR Oct 29, 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)
3 simulated trades to Oct 20, 2026: -4.24% per trade on average after costs, 1 won.
| Legs | Entered | Exited | Why | Days | Before costs | Costs + borrow | After costs |
|---|---|---|---|---|---|---|---|
| Long PWR · Short EME | Feb 27, 2025 | Apr 4, 2025 | converged | 36 | $865.13 | -$44.83 | $819.28 (+8.19%) |
| Long PWR · Short EME | Sep 20, 2023 | Oct 27, 2023 | divergence stop | 37 | -$1,003.50 | -$66.18 | -$1,071.97 (-10.72%) |
| Long EME · Short PWR | Dec 27, 2018 | Jan 28, 2019 | divergence stop | 32 | -$925.92 | -$93.57 | -$1,019.98 (-10.20%) |
Per $10,000 a leg. A replay on today's companies cannot prove an edge.
The companies
EME and PWR at a glance
EME EMCOR Group Inc.
- Listing
- NYSE · SEC CIK 105634
- Industry
- Engineering & Construction · SIC 1731 Electrical Work
- Market value
- $31.6B
- Price history
- 2,521 daily closes, Oct 12, 2016 to Oct 22, 2026
PWR Quanta Services Inc.
- Listing
- NYSE · SEC CIK 1050915
- Industry
- Engineering & Construction · SIC 1731 Electrical Work
- Market value
- $91.1B
- 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 EME and PWR
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.
