CSX Corporation vs Union Pacific Corporation
WatchlistCSX / UNPPrices through Nov 10, 2026
Why these are rivals: #1 and #2 by market value ($180B vs $93B) in Nasdaq's "Railroads" industry; SEC SIC 4011 / 4011 (same major group); #1 and #2 by market value ($180B vs $93B) with SEC SIC 4011 (Railroads, Line-Haul Operating).
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: -1.76 (needs <= -2.873 (5% critical value))
Business leadership
UNP is the larger business
Annual revenue reported to the SEC. Scale, not market share.
| Year | CSX | UNP | Larger |
|---|---|---|---|
| 2025 | $14.1B | $24.5B | UNP |
| 2024 | $14.5B | $24.3B | UNP |
| 2023 | $14.7B | $24.1B | UNP |
| 2022 | $14.9B | $24.9B | UNP |
| 2021 | $12.5B | $21.8B | UNP |
| 2020 | $10.6B | $19.5B | UNP |
UNP led in every year with figures for both. Market value: CSX $93.5B, UNP $180.3B.
Stock leadership
CSX is ahead now
Measured against the pair's own last 252 trading days.
CSX leads UNP by 0.55 standard deviations: +2.4% over its usual price ratio. 0 lead switches in the last year.
| Price change | 3 mo | 6 mo | 12 mo |
|---|---|---|---|
| CSX | +2.0% | +14.7% | +44.5% |
| UNP | +2.3% | +13.2% | +35.7% |
Relationship
Not a measured twin today
Only these tests can make a pair tradable on paper.
- Pass
- Aligned sessions: 2534 (needs >= 254)
- Pass
- Co-movement: daily return correlation, 252 sessions: 0.80 (needs >= 0.60)
- Fail
- Mean reversion: ADF t-statistic of the spread: -1.76 (needs <= -2.873 (5% critical value))
- Pass
- Speed: half-life of the spread, sessions: 28.73 (needs <= 63)
- Data
- Both stocks current
The twins over two years
Prices side by side, and the gap between them
CSX CSX Corporation UNP Union Pacific CorporationPrice index, 100 = 2024-11-06. Tint = which stock is ahead of the pair's usual 1-year relationship (z beyond +/-0.5).
Spread z-score: CSX relative to UNP, against the 252 sessions before each day. Above 0: CSX ahead; below 0: UNP ahead. Lines at +/-2 (idea) and +/-4 (stop).
Data table (504 sessions)
| Date | CSX index | UNP index | z | Ahead |
|---|---|---|---|---|
| 2026-11-10 | 138.50 | 120.98 | +0.55 | CSX ahead |
| 2026-11-09 | 136.88 | 119.53 | +0.56 | CSX ahead |
| 2026-11-06 | 133.19 | 116.77 | +0.48 | near the usual relationship |
| 2026-11-05 | 137.83 | 119.90 | +0.66 | CSX ahead |
| 2026-11-04 | 141.13 | 124.16 | +0.40 | near the usual relationship |
| 2026-11-03 | 137.53 | 122.11 | +0.19 | near the usual relationship |
| 2026-11-02 | 139.97 | 123.55 | +0.33 | near the usual relationship |
| 2026-10-30 | 140.97 | 122.34 | +0.73 | CSX ahead |
| 2026-10-29 | 141.65 | 121.51 | +1.01 | CSX ahead |
| 2026-10-28 | 140.94 | 119.84 | +1.22 | CSX ahead |
| 2026-10-27 | 141.73 | 120.68 | +1.19 | CSX ahead |
| 2026-10-26 | 139.13 | 119.51 | +0.99 | CSX ahead |
| 2026-10-23 | 137.72 | 117.86 | +1.09 | CSX ahead |
| 2026-10-22 | 140.10 | 119.96 | +1.09 | CSX ahead |
| 2026-10-21 | 131.24 | 115.85 | +0.38 | near the usual relationship |
| 2026-10-20 | 130.37 | 115.74 | +0.25 | near the usual relationship |
| 2026-10-19 | 129.83 | 115.50 | +0.20 | near the usual relationship |
| 2026-10-16 | 132.00 | 116.32 | +0.43 | near the usual relationship |
| 2026-10-15 | 132.02 | 116.19 | +0.47 | near the usual relationship |
| 2026-10-14 | 130.91 | 115.27 | +0.46 | near the usual relationship |
| 2026-10-13 | 129.50 | 113.63 | +0.55 | CSX ahead |
| 2026-10-12 | 129.47 | 113.31 | +0.61 | CSX ahead |
| 2026-10-09 | 128.15 | 112.01 | +0.65 | CSX ahead |
| 2026-10-08 | 128.36 | 111.96 | +0.70 | CSX ahead |
| 2026-10-07 | 126.93 | 110.54 | +0.74 | CSX ahead |
| 2026-10-06 | 128.80 | 111.32 | +0.92 | CSX ahead |
| 2026-10-05 | 128.61 | 111.50 | +0.86 | CSX ahead |
| 2026-10-02 | 128.61 | 111.99 | +0.76 | CSX ahead |
| 2026-10-01 | 126.19 | 109.63 | +0.82 | CSX ahead |
| 2026-09-30 | 126.11 | 109.51 | +0.84 | CSX ahead |
| 2026-09-29 | 127.25 | 110.33 | +0.88 | CSX ahead |
| 2026-09-28 | 126.79 | 110.31 | +0.80 | CSX ahead |
| 2026-09-25 | 126.84 | 110.18 | +0.84 | CSX ahead |
| 2026-09-24 | 127.30 | 110.29 | +0.90 | CSX ahead |
| 2026-09-23 | 127.96 | 110.88 | +0.90 | CSX ahead |
| 2026-09-22 | 126.33 | 110.43 | +0.73 | CSX ahead |
| 2026-09-21 | 124.70 | 108.51 | +0.83 | CSX ahead |
| 2026-09-18 | 127.71 | 112.43 | +0.59 | CSX ahead |
| 2026-09-17 | 129.88 | 113.68 | +0.72 | CSX ahead |
| 2026-09-16 | 129.88 | 113.05 | +0.84 | CSX ahead |
| 2026-09-15 | 131.94 | 114.29 | +0.95 | CSX ahead |
| 2026-09-14 | 132.62 | 114.72 | +0.98 | CSX ahead |
| 2026-09-11 | 132.73 | 114.45 | +1.05 | CSX ahead |
| 2026-09-10 | 132.97 | 115.01 | +1.00 | CSX ahead |
| 2026-09-09 | 131.16 | 114.59 | +0.80 | CSX ahead |
| 2026-09-08 | 132.86 | 116.08 | +0.80 | CSX ahead |
| 2026-09-04 | 133.98 | 116.55 | +0.90 | CSX ahead |
| 2026-09-03 | 132.84 | 116.36 | +0.76 | CSX ahead |
| 2026-09-02 | 131.91 | 116.60 | +0.59 | CSX ahead |
| 2026-09-01 | 132.05 | 116.95 | +0.56 | CSX ahead |
| 2026-08-31 | 136.96 | 121.00 | +0.61 | CSX ahead |
| 2026-08-28 | 139.05 | 123.71 | +0.49 | near the usual relationship |
| 2026-08-27 | 139.75 | 123.82 | +0.57 | CSX ahead |
| 2026-08-26 | 140.35 | 125.00 | +0.48 | near the usual relationship |
| 2026-08-25 | 139.67 | 124.59 | +0.46 | near the usual relationship |
| 2026-08-24 | 139.48 | 124.70 | +0.42 | near the usual relationship |
| 2026-08-21 | 139.89 | 123.97 | +0.58 | CSX ahead |
| 2026-08-20 | 138.20 | 122.33 | +0.61 | CSX ahead |
| 2026-08-19 | 137.42 | 121.45 | +0.64 | CSX ahead |
| 2026-08-18 | 136.23 | 120.22 | +0.67 | CSX ahead |
| 2026-08-17 | 137.15 | 120.69 | +0.73 | CSX ahead |
| 2026-08-14 | 136.01 | 118.19 | +0.97 | CSX ahead |
| 2026-08-13 | 135.95 | 119.84 | +0.70 | CSX ahead |
| 2026-08-12 | 135.79 | 118.21 | +0.94 | CSX ahead |
| 2026-08-11 | 135.41 | 117.86 | +0.95 | CSX ahead |
| 2026-08-10 | 135.90 | 117.61 | +1.07 | CSX ahead |
| 2026-08-07 | 136.31 | 117.96 | +1.08 | CSX ahead |
| 2026-08-06 | 137.47 | 118.87 | +1.10 | CSX ahead |
| 2026-08-05 | 138.61 | 118.93 | +1.26 | CSX ahead |
| 2026-08-04 | 138.37 | 119.26 | +1.18 | CSX ahead |
| 2026-08-03 | 135.11 | 117.20 | +1.07 | CSX ahead |
| 2026-07-31 | 136.66 | 117.56 | +1.23 | CSX ahead |
| 2026-07-30 | 136.09 | 116.49 | +1.34 | CSX ahead |
| 2026-07-29 | 137.58 | 117.59 | +1.38 | CSX ahead |
| 2026-07-28 | 137.85 | 118.50 | +1.28 | CSX ahead |
| 2026-07-27 | 140.46 | 120.45 | +1.34 | CSX ahead |
| 2026-07-24 | 144.33 | 123.67 | +1.36 | CSX ahead |
| 2026-07-23 | 143.19 | 122.47 | +1.41 | CSX ahead |
| 2026-07-22 | 135.39 | 117.74 | +1.10 | CSX ahead |
| 2026-07-21 | 135.28 | 117.96 | +1.05 | CSX ahead |
| 2026-07-20 | 135.87 | 119.22 | +0.94 | CSX ahead |
| 2026-07-17 | 137.61 | 121.43 | +0.84 | CSX ahead |
| 2026-07-16 | 137.99 | 120.50 | +1.04 | CSX ahead |
| 2026-07-15 | 134.03 | 116.04 | +1.21 | CSX ahead |
| 2026-07-14 | 135.36 | 116.02 | +1.41 | CSX ahead |
| 2026-07-13 | 134.60 | 116.35 | +1.26 | CSX ahead |
| 2026-07-10 | 133.98 | 115.48 | +1.31 | CSX ahead |
| 2026-07-09 | 133.81 | 114.71 | +1.42 | CSX ahead |
| 2026-07-08 | 132.02 | 113.06 | +1.45 | CSX ahead |
| 2026-07-07 | 131.53 | 113.94 | +1.24 | CSX ahead |
| 2026-07-06 | 132.35 | 113.72 | +1.39 | CSX ahead |
| 2026-07-02 | 132.57 | 113.59 | +1.45 | CSX ahead |
| 2026-07-01 | 131.05 | 111.77 | +1.54 | CSX ahead |
| 2026-06-30 | 128.88 | 109.46 | +1.63 | CSX ahead |
| 2026-06-29 | 130.18 | 109.74 | +1.77 | CSX ahead |
| 2026-06-26 | 129.23 | 107.99 | +1.95 | CSX ahead |
| 2026-06-25 | 128.63 | 107.74 | +1.92 | CSX ahead |
| 2026-06-24 | 124.89 | 104.62 | +1.93 | CSX ahead |
| 2026-06-23 | 125.16 | 104.07 | +2.09 | CSX ahead |
| 2026-06-22 | 125.27 | 104.60 | +2.03 | CSX ahead |
| 2026-06-18 | 123.73 | 103.38 | +2.04 | CSX ahead |
| 2026-06-17 | 123.56 | 103.85 | +1.95 | CSX ahead |
| 2026-06-16 | 127.17 | 107.63 | +1.84 | CSX ahead |
| 2026-06-15 | 128.50 | 107.58 | +2.06 | CSX ahead |
| 2026-06-12 | 128.99 | 109.74 | +1.78 | CSX ahead |
| 2026-06-11 | 128.43 | 107.96 | +2.02 | CSX ahead |
| 2026-06-10 | 125.84 | 107.46 | +1.74 | CSX ahead |
| 2026-06-09 | 128.20 | 109.17 | +1.81 | CSX ahead |
| 2026-06-08 | 127.74 | 108.12 | +1.94 | CSX ahead |
| 2026-06-05 | 127.41 | 109.59 | +1.66 | CSX ahead |
| 2026-06-04 | 125.35 | 106.20 | +1.95 | CSX ahead |
| 2026-06-03 | 125.92 | 105.49 | +2.18 | CSX ahead |
| 2026-06-02 | 125.11 | 106.52 | +1.90 | CSX ahead |
| 2026-06-01 | 124.35 | 106.04 | +1.88 | CSX ahead |
| 2026-05-29 | 122.72 | 105.69 | +1.71 | CSX ahead |
| 2026-05-28 | 124.21 | 107.45 | +1.64 | CSX ahead |
| 2026-05-27 | 127.82 | 112.44 | +1.35 | CSX ahead |
| 2026-05-26 | 126.38 | 109.10 | +1.69 | CSX ahead |
| 2026-05-22 | 123.43 | 107.00 | +1.62 | CSX ahead |
| 2026-05-21 | 124.46 | 106.82 | +1.81 | CSX ahead |
| 2026-05-20 | 124.57 | 106.97 | +1.81 | CSX ahead |
| 2026-05-19 | 124.95 | 109.28 | +1.48 | CSX ahead |
| 2026-05-18 | 125.27 | 110.72 | +1.30 | CSX ahead |
| 2026-05-15 | 123.81 | 108.88 | +1.40 | CSX ahead |
| 2026-05-14 | 124.51 | 108.39 | +1.58 | CSX ahead |
| 2026-05-13 | 120.39 | 106.50 | +1.30 | CSX ahead |
| 2026-05-12 | 120.74 | 106.89 | +1.29 | CSX ahead |
| 2026-05-11 | 121.31 | 105.98 | +1.52 | CSX ahead |
| 2026-05-08 | 121.56 | 106.50 | +1.47 | CSX ahead |
| 2026-05-07 | 120.55 | 106.60 | +1.32 | CSX ahead |
| 2026-05-06 | 123.64 | 107.94 | +1.53 | CSX ahead |
| 2026-05-05 | 122.10 | 106.25 | +1.59 | CSX ahead |
| 2026-05-04 | 121.26 | 106.00 | +1.52 | CSX ahead |
| 2026-05-01 | 122.26 | 107.18 | +1.47 | CSX ahead |
| 2026-04-30 | 123.18 | 108.45 | +1.41 | CSX ahead |
| 2026-04-29 | 121.15 | 106.56 | +1.43 | CSX ahead |
| 2026-04-28 | 122.64 | 107.75 | +1.45 | CSX ahead |
| 2026-04-27 | 123.26 | 108.22 | +1.46 | CSX ahead |
| 2026-04-24 | 123.13 | 108.13 | +1.46 | CSX ahead |
| 2026-04-23 | 125.22 | 109.16 | +1.57 | CSX ahead |
| 2026-04-22 | 117.08 | 100.37 | +1.82 | CSX ahead |
| 2026-04-21 | 117.60 | 101.11 | +1.78 | CSX ahead |
| 2026-04-20 | 118.52 | 101.48 | +1.84 | CSX ahead |
| 2026-04-17 | 117.46 | 101.07 | +1.78 | CSX ahead |
| 2026-04-16 | 115.84 | 101.04 | +1.58 | CSX ahead |
| 2026-04-15 | 114.15 | 99.81 | +1.55 | CSX ahead |
| 2026-04-14 | 115.27 | 101.43 | +1.47 | CSX ahead |
| 2026-04-13 | 114.83 | 101.15 | +1.46 | CSX ahead |
| 2026-04-10 | 114.53 | 100.81 | +1.47 | CSX ahead |
| 2026-04-09 | 115.21 | 101.07 | +1.53 | CSX ahead |
| 2026-04-08 | 114.26 | 100.25 | +1.53 | CSX ahead |
| 2026-04-07 | 112.31 | 99.04 | +1.46 | CSX ahead |
| 2026-04-06 | 112.47 | 98.81 | +1.52 | CSX ahead |
| 2026-04-02 | 111.77 | 98.48 | +1.48 | CSX ahead |
| 2026-04-01 | 112.36 | 97.84 | +1.64 | CSX ahead |
| 2026-03-31 | 111.31 | 97.64 | +1.55 | CSX ahead |
| 2026-03-30 | 107.84 | 96.27 | +1.33 | CSX ahead |
| 2026-03-27 | 107.57 | 96.10 | +1.32 | CSX ahead |
| 2026-03-26 | 107.24 | 96.26 | +1.27 | CSX ahead |
| 2026-03-25 | 107.29 | 97.12 | +1.16 | CSX ahead |
| 2026-03-24 | 105.40 | 96.45 | +1.03 | CSX ahead |
| 2026-03-23 | 105.59 | 95.93 | +1.13 | CSX ahead |
| 2026-03-20 | 103.50 | 94.54 | +1.07 | CSX ahead |
| 2026-03-19 | 104.37 | 94.24 | +1.22 | CSX ahead |
| 2026-03-18 | 107.48 | 95.20 | +1.47 | CSX ahead |
| 2026-03-17 | 109.29 | 97.52 | +1.38 | CSX ahead |
| 2026-03-16 | 107.86 | 97.47 | +1.23 | CSX ahead |
| 2026-03-13 | 106.56 | 97.57 | +1.08 | CSX ahead |
| 2026-03-12 | 106.34 | 98.23 | +0.97 | CSX ahead |
| 2026-03-11 | 109.38 | 101.05 | +0.98 | CSX ahead |
| 2026-03-10 | 110.93 | 100.69 | +1.19 | CSX ahead |
| 2026-03-09 | 110.09 | 102.06 | +0.95 | CSX ahead |
| 2026-03-06 | 108.32 | 102.26 | +0.74 | CSX ahead |
| 2026-03-05 | 111.58 | 104.71 | +0.81 | CSX ahead |
| 2026-03-04 | 116.00 | 107.33 | +0.99 | CSX ahead |
| 2026-03-03 | 115.67 | 106.98 | +1.00 | CSX ahead |
| 2026-03-02 | 117.06 | 107.44 | +1.10 | CSX ahead |
| 2026-02-27 | 115.75 | 106.64 | +1.06 | CSX ahead |
| 2026-02-26 | 115.65 | 106.83 | +1.04 | CSX ahead |
| 2026-02-25 | 114.48 | 106.34 | +0.98 | CSX ahead |
| 2026-02-24 | 115.16 | 107.31 | +0.95 | CSX ahead |
| 2026-02-23 | 113.80 | 106.15 | +0.95 | CSX ahead |
| 2026-02-20 | 114.72 | 107.09 | +0.95 | CSX ahead |
| 2026-02-19 | 113.02 | 105.83 | +0.92 | CSX ahead |
| 2026-02-18 | 112.15 | 106.64 | +0.75 | CSX ahead |
| 2026-02-17 | 111.25 | 105.76 | +0.76 | CSX ahead |
| 2026-02-13 | 110.82 | 104.91 | +0.81 | CSX ahead |
| 2026-02-12 | 110.36 | 105.34 | +0.72 | CSX ahead |
| 2026-02-11 | 112.09 | 105.76 | +0.86 | CSX ahead |
| 2026-02-10 | 110.90 | 105.16 | +0.81 | CSX ahead |
| 2026-02-09 | 110.41 | 102.35 | +1.08 | CSX ahead |
| 2026-02-06 | 110.11 | 101.66 | +1.14 | CSX ahead |
| 2026-02-05 | 108.11 | 101.19 | +0.99 | CSX ahead |
| 2026-02-04 | 108.05 | 100.51 | +1.07 | CSX ahead |
| 2026-02-03 | 106.16 | 97.18 | +1.26 | CSX ahead |
| 2026-02-02 | 104.09 | 94.66 | +1.35 | CSX ahead |
| 2026-01-30 | 102.39 | 94.61 | +1.17 | CSX ahead |
| 2026-01-29 | 102.68 | 94.00 | +1.29 | CSX ahead |
| 2026-01-28 | 101.36 | 91.64 | +1.45 | CSX ahead |
| 2026-01-27 | 102.14 | 93.59 | +1.31 | CSX ahead |
| 2026-01-26 | 101.60 | 92.92 | +1.34 | CSX ahead |
| 2026-01-23 | 99.35 | 92.42 | +1.15 | CSX ahead |
| 2026-01-22 | 97.02 | 93.11 | +0.79 | CSX ahead |
| 2026-01-21 | 99.05 | 92.31 | +1.14 | CSX ahead |
| 2026-01-20 | 96.29 | 89.21 | +1.22 | CSX ahead |
| 2026-01-16 | 98.29 | 92.35 | +1.06 | CSX ahead |
| 2026-01-15 | 98.43 | 92.76 | +1.04 | CSX ahead |
| 2026-01-14 | 98.10 | 91.41 | +1.18 | CSX ahead |
| 2026-01-13 | 96.61 | 92.27 | +0.89 | CSX ahead |
| 2026-01-12 | 95.50 | 92.36 | +0.75 | CSX ahead |
| 2026-01-09 | 95.44 | 91.93 | +0.80 | CSX ahead |
| 2026-01-08 | 95.77 | 92.50 | +0.78 | CSX ahead |
| 2026-01-07 | 95.04 | 90.34 | +0.97 | CSX ahead |
| 2026-01-06 | 97.80 | 94.02 | +0.84 | CSX ahead |
| 2026-01-05 | 97.37 | 93.35 | +0.88 | CSX ahead |
| 2026-01-02 | 98.35 | 93.33 | +1.01 | CSX ahead |
| 2025-12-31 | 98.29 | 93.09 | +1.04 | CSX ahead |
| 2025-12-30 | 98.75 | 93.79 | +1.01 | CSX ahead |
| 2025-12-29 | 99.57 | 94.38 | +1.04 | CSX ahead |
| 2025-12-26 | 99.30 | 93.94 | +1.07 | CSX ahead |
| 2025-12-24 | 99.73 | 94.59 | +1.05 | CSX ahead |
| 2025-12-23 | 99.21 | 94.23 | +1.04 | CSX ahead |
| 2025-12-22 | 99.08 | 94.41 | +1.01 | CSX ahead |
| 2025-12-19 | 98.97 | 94.26 | +1.02 | CSX ahead |
| 2025-12-18 | 99.27 | 94.34 | +1.05 | CSX ahead |
| 2025-12-17 | 98.97 | 95.27 | +0.90 | CSX ahead |
| 2025-12-16 | 99.78 | 94.93 | +1.05 | CSX ahead |
| 2025-12-15 | 100.81 | 96.77 | +0.95 | CSX ahead |
| 2025-12-12 | 101.38 | 96.56 | +1.05 | CSX ahead |
| 2025-12-11 | 100.73 | 95.02 | +1.18 | CSX ahead |
| 2025-12-10 | 100.57 | 94.76 | +1.20 | CSX ahead |
| 2025-12-09 | 98.62 | 93.19 | +1.17 | CSX ahead |
| 2025-12-08 | 98.56 | 94.75 | +0.96 | CSX ahead |
| 2025-12-05 | 98.43 | 94.70 | +0.95 | CSX ahead |
| 2025-12-04 | 98.10 | 95.49 | +0.80 | CSX ahead |
| 2025-12-03 | 97.48 | 94.66 | +0.83 | CSX ahead |
| 2025-12-02 | 94.82 | 93.46 | +0.65 | CSX ahead |
| 2025-12-01 | 94.50 | 93.11 | +0.66 | CSX ahead |
| 2025-11-28 | 95.88 | 93.30 | +0.81 | CSX ahead |
| 2025-11-26 | 95.72 | 92.82 | +0.86 | CSX ahead |
| 2025-11-25 | 94.63 | 92.21 | +0.80 | CSX ahead |
| 2025-11-24 | 93.25 | 90.35 | +0.88 | CSX ahead |
| 2025-11-21 | 92.95 | 91.04 | +0.74 | CSX ahead |
| 2025-11-20 | 91.32 | 89.02 | +0.80 | CSX ahead |
| 2025-11-19 | 92.08 | 89.01 | +0.91 | CSX ahead |
| 2025-11-18 | 92.16 | 88.86 | +0.94 | CSX ahead |
| 2025-11-17 | 92.22 | 88.94 | +0.94 | CSX ahead |
| 2025-11-14 | 94.63 | 89.75 | +1.15 | CSX ahead |
| 2025-11-13 | 94.58 | 89.13 | +1.24 | CSX ahead |
| 2025-11-12 | 95.96 | 89.96 | +1.31 | CSX ahead |
| 2025-11-11 | 94.85 | 90.47 | +1.10 | CSX ahead |
| 2025-11-10 | 95.23 | 90.10 | +1.21 | CSX ahead |
| 2025-11-07 | 95.82 | 89.13 | +1.43 | CSX ahead |
| 2025-11-06 | 95.34 | 87.73 | +1.58 | CSX ahead |
| 2025-11-05 | 95.77 | 87.48 | +1.69 | CSX ahead |
| 2025-11-04 | 97.18 | 88.90 | +1.69 | CSX ahead |
| 2025-11-03 | 97.15 | 88.06 | +1.82 | CSX ahead |
| 2025-10-31 | 97.67 | 88.68 | +1.82 | CSX ahead |
| 2025-10-30 | 96.64 | 88.06 | +1.79 | CSX ahead |
| 2025-10-29 | 95.72 | 87.07 | +1.83 | CSX ahead |
| 2025-10-28 | 96.75 | 87.56 | +1.92 | CSX ahead |
| 2025-10-27 | 97.61 | 87.82 | +2.02 | CSX ahead |
| 2025-10-24 | 97.97 | 87.17 | +2.20 | CSX ahead |
| 2025-10-23 | 96.34 | 88.55 | +1.78 | CSX ahead |
| 2025-10-22 | 97.40 | 90.64 | +1.63 | CSX ahead |
| 2025-10-21 | 96.88 | 91.17 | +1.49 | CSX ahead |
| 2025-10-20 | 99.43 | 91.47 | +1.82 | CSX ahead |
| 2025-10-17 | 99.24 | 90.97 | +1.89 | CSX ahead |
| 2025-10-16 | 97.59 | 90.16 | +1.80 | CSX ahead |
| 2025-10-15 | 98.26 | 90.84 | +1.80 | CSX ahead |
| 2025-10-14 | 97.97 | 91.38 | +1.69 | CSX ahead |
| 2025-10-13 | 96.45 | 90.89 | +1.56 | CSX ahead |
| 2025-10-10 | 96.23 | 90.73 | +1.57 | CSX ahead |
| 2025-10-09 | 97.75 | 93.18 | +1.42 | CSX ahead |
| 2025-10-08 | 97.48 | 93.63 | +1.32 | CSX ahead |
| 2025-10-07 | 97.59 | 93.31 | +1.39 | CSX ahead |
| 2025-10-06 | 98.29 | 95.54 | +1.16 | CSX ahead |
| 2025-10-03 | 97.64 | 95.30 | +1.11 | CSX ahead |
| 2025-10-02 | 96.45 | 94.38 | +1.08 | CSX ahead |
| 2025-10-01 | 94.90 | 94.47 | +0.83 | CSX ahead |
| 2025-09-30 | 96.29 | 95.12 | +0.95 | CSX ahead |
| 2025-09-29 | 97.15 | 95.05 | +1.10 | CSX ahead |
| 2025-09-26 | 92.22 | 94.65 | +0.40 | near the usual relationship |
| 2025-09-25 | 91.59 | 93.36 | +0.50 | CSX ahead |
| 2025-09-24 | 91.70 | 92.70 | +0.63 | CSX ahead |
| 2025-09-23 | 92.38 | 91.75 | +0.89 | CSX ahead |
| 2025-09-22 | 90.02 | 90.89 | +0.66 | CSX ahead |
| 2025-09-19 | 89.43 | 88.78 | +0.91 | CSX ahead |
| 2025-09-18 | 90.65 | 88.68 | +1.14 | CSX ahead |
| 2025-09-17 | 88.86 | 87.40 | +1.07 | CSX ahead |
| 2025-09-16 | 88.04 | 86.93 | +1.02 | CSX ahead |
| 2025-09-15 | 88.12 | 87.03 | +1.02 | CSX ahead |
| 2025-09-12 | 88.04 | 86.49 | +1.11 | CSX ahead |
| 2025-09-11 | 89.07 | 86.94 | +1.21 | CSX ahead |
| 2025-09-10 | 86.90 | 86.60 | +0.91 | CSX ahead |
| 2025-09-09 | 87.31 | 86.95 | +0.93 | CSX ahead |
| 2025-09-08 | 87.93 | 87.43 | +0.96 | CSX ahead |
| 2025-09-05 | 88.20 | 88.66 | +0.80 | CSX ahead |
| 2025-09-04 | 88.56 | 89.77 | +0.68 | CSX ahead |
| 2025-09-03 | 87.53 | 89.24 | +0.60 | CSX ahead |
| 2025-09-02 | 87.28 | 89.34 | +0.55 | CSX ahead |
| 2025-08-29 | 88.15 | 89.97 | +0.59 | CSX ahead |
| 2025-08-28 | 88.56 | 89.48 | +0.75 | CSX ahead |
| 2025-08-27 | 88.23 | 88.92 | +0.80 | CSX ahead |
| 2025-08-26 | 87.88 | 89.64 | +0.62 | CSX ahead |
| 2025-08-25 | 88.96 | 89.87 | +0.77 | CSX ahead |
| 2025-08-22 | 93.76 | 91.69 | +1.26 | CSX ahead |
| 2025-08-21 | 97.26 | 90.67 | +2.01 | CSX ahead |
| 2025-08-20 | 97.59 | 90.82 | +2.06 | CSX ahead |
| 2025-08-19 | 99.02 | 90.05 | +2.45 | CSX ahead |
| 2025-08-18 | 97.59 | 88.57 | +2.52 | CSX ahead |
| 2025-08-15 | 98.48 | 88.85 | +2.66 | CSX ahead |
| 2025-08-14 | 98.56 | 89.15 | +2.67 | CSX ahead |
| 2025-08-13 | 97.83 | 89.81 | +2.46 | CSX ahead |
| 2025-08-12 | 97.13 | 88.05 | +2.72 | CSX ahead |
| 2025-08-11 | 95.53 | 88.39 | +2.41 | CSX ahead |
| 2025-08-08 | 96.07 | 89.44 | +2.34 | CSX ahead |
| 2025-08-07 | 95.58 | 89.61 | +2.26 | CSX ahead |
| 2025-08-06 | 97.64 | 90.73 | +2.44 | CSX ahead |
| 2025-08-05 | 96.66 | 89.73 | +2.50 | CSX ahead |
| 2025-08-04 | 96.15 | 89.36 | +2.52 | CSX ahead |
| 2025-08-01 | 94.93 | 88.29 | +2.54 | CSX ahead |
| 2025-07-31 | 96.37 | 89.33 | +2.64 | CSX ahead |
| 2025-07-30 | 95.69 | 90.66 | +2.28 | CSX ahead |
| 2025-07-29 | 96.04 | 90.05 | +2.50 | CSX ahead |
| 2025-07-28 | 96.83 | 92.25 | +2.24 | CSX ahead |
| 2025-07-25 | 96.96 | 90.44 | +2.68 | CSX ahead |
| 2025-07-24 | 94.90 | 88.74 | +2.68 | CSX ahead |
| 2025-07-23 | 94.82 | 92.96 | +1.78 | CSX ahead |
| 2025-07-22 | 95.53 | 92.25 | +2.09 | CSX ahead |
| 2025-07-21 | 93.17 | 90.89 | +1.91 | CSX ahead |
| 2025-07-18 | 93.25 | 90.49 | +2.03 | CSX ahead |
| 2025-07-17 | 93.55 | 91.55 | +1.87 | CSX ahead |
| 2025-07-16 | 90.18 | 93.03 | +0.83 | CSX ahead |
| 2025-07-15 | 90.78 | 93.02 | +0.96 | CSX ahead |
| 2025-07-14 | 92.14 | 93.89 | +1.07 | CSX ahead |
| 2025-07-11 | 92.46 | 94.61 | +0.99 | CSX ahead |
| 2025-07-10 | 90.94 | 95.38 | +0.50 | CSX ahead |
| 2025-07-09 | 90.37 | 95.17 | +0.41 | near the usual relationship |
| 2025-07-08 | 90.54 | 95.19 | +0.44 | near the usual relationship |
| 2025-07-07 | 89.61 | 94.71 | +0.33 | near the usual relationship |
| 2025-07-03 | 91.11 | 95.09 | +0.57 | CSX ahead |
| 2025-07-02 | 91.13 | 95.44 | +0.50 | CSX ahead |
| 2025-07-01 | 90.75 | 94.80 | +0.54 | CSX ahead |
| 2025-06-30 | 88.48 | 92.59 | +0.50 | CSX ahead |
| 2025-06-27 | 89.24 | 93.13 | +0.55 | CSX ahead |
| 2025-06-26 | 88.31 | 92.31 | +0.52 | CSX ahead |
| 2025-06-25 | 88.10 | 91.28 | +0.68 | CSX ahead |
| 2025-06-24 | 88.07 | 91.72 | +0.58 | CSX ahead |
| 2025-06-23 | 87.91 | 90.90 | +0.71 | CSX ahead |
| 2025-06-20 | 86.93 | 89.54 | +0.78 | CSX ahead |
| 2025-06-18 | 87.42 | 89.34 | +0.93 | CSX ahead |
| 2025-06-17 | 87.09 | 88.77 | +0.98 | CSX ahead |
| 2025-06-16 | 88.29 | 90.41 | +0.89 | CSX ahead |
| 2025-06-13 | 87.09 | 89.89 | +0.74 | CSX ahead |
| 2025-06-12 | 87.83 | 90.74 | +0.72 | CSX ahead |
| 2025-06-11 | 87.64 | 90.84 | +0.66 | CSX ahead |
| 2025-06-10 | 88.42 | 91.19 | +0.76 | CSX ahead |
| 2025-06-09 | 86.71 | 90.20 | +0.59 | CSX ahead |
| 2025-06-06 | 87.39 | 89.92 | +0.80 | CSX ahead |
| 2025-06-05 | 86.06 | 88.80 | +0.74 | CSX ahead |
| 2025-06-04 | 86.58 | 88.88 | +0.84 | CSX ahead |
| 2025-06-03 | 86.39 | 89.25 | +0.72 | CSX ahead |
| 2025-06-02 | 84.71 | 88.09 | +0.59 | CSX ahead |
| 2025-05-30 | 85.66 | 89.20 | +0.56 | CSX ahead |
| 2025-05-29 | 85.20 | 89.54 | +0.39 | near the usual relationship |
| 2025-05-28 | 84.98 | 89.41 | +0.36 | near the usual relationship |
| 2025-05-27 | 85.22 | 90.29 | +0.23 | near the usual relationship |
| 2025-05-23 | 83.57 | 89.38 | +0.06 | near the usual relationship |
| 2025-05-22 | 83.08 | 89.69 | -0.12 | near the usual relationship |
| 2025-05-21 | 82.67 | 89.99 | -0.27 | near the usual relationship |
| 2025-05-20 | 84.68 | 91.89 | -0.21 | near the usual relationship |
| 2025-05-19 | 84.63 | 92.36 | -0.32 | near the usual relationship |
| 2025-05-16 | 84.92 | 93.13 | -0.41 | near the usual relationship |
| 2025-05-15 | 84.87 | 92.90 | -0.38 | near the usual relationship |
| 2025-05-14 | 84.14 | 91.89 | -0.34 | near the usual relationship |
| 2025-05-13 | 82.81 | 91.85 | -0.63 | UNP ahead |
| 2025-05-12 | 82.19 | 92.91 | -0.99 | UNP ahead |
| 2025-05-09 | 77.93 | 87.05 | -0.78 | UNP ahead |
| 2025-05-08 | 78.52 | 87.26 | -0.68 | UNP ahead |
| 2025-05-07 | 76.93 | 86.06 | -0.81 | UNP ahead |
| 2025-05-06 | 76.17 | 85.80 | -0.95 | UNP ahead |
| 2025-05-05 | 77.20 | 87.14 | -1.00 | UNP ahead |
| 2025-05-02 | 77.82 | 87.85 | -1.00 | UNP ahead |
| 2025-05-01 | 76.22 | 86.15 | -1.03 | UNP ahead |
| 2025-04-30 | 76.11 | 86.79 | -1.21 | UNP ahead |
| 2025-04-29 | 76.06 | 86.34 | -1.13 | UNP ahead |
| 2025-04-28 | 75.57 | 85.56 | -1.09 | UNP ahead |
| 2025-04-25 | 75.49 | 85.83 | -1.18 | UNP ahead |
| 2025-04-24 | 76.30 | 86.70 | -1.18 | UNP ahead |
| 2025-04-23 | 74.81 | 88.45 | -1.95 | UNP ahead |
| 2025-04-22 | 75.33 | 87.29 | -1.58 | UNP ahead |
| 2025-04-21 | 74.46 | 86.95 | -1.75 | UNP ahead |
| 2025-04-17 | 75.05 | 88.64 | -1.98 | UNP ahead |
| 2025-04-16 | 74.16 | 87.17 | -1.91 | UNP ahead |
| 2025-04-15 | 75.65 | 88.57 | -1.85 | UNP ahead |
| 2025-04-14 | 76.65 | 89.45 | -1.81 | UNP ahead |
| 2025-04-11 | 75.95 | 87.97 | -1.68 | UNP ahead |
| 2025-04-10 | 75.43 | 88.26 | -1.89 | UNP ahead |
| 2025-04-09 | 77.71 | 89.96 | -1.70 | UNP ahead |
| 2025-04-08 | 72.37 | 83.81 | -1.73 | UNP ahead |
| 2025-04-07 | 73.45 | 84.50 | -1.61 | UNP ahead |
| 2025-04-04 | 73.78 | 85.82 | -1.84 | UNP ahead |
| 2025-04-03 | 75.89 | 90.13 | -2.28 | UNP ahead |
| 2025-04-02 | 80.64 | 95.96 | -2.35 | UNP ahead |
| 2025-04-01 | 80.10 | 95.44 | -2.41 | UNP ahead |
| 2025-03-31 | 79.80 | 95.07 | -2.44 | UNP ahead |
| 2025-03-28 | 78.93 | 93.42 | -2.34 | UNP ahead |
| 2025-03-27 | 81.13 | 94.96 | -2.14 | UNP ahead |
| 2025-03-26 | 81.07 | 95.79 | -2.36 | UNP ahead |
| 2025-03-25 | 80.07 | 94.89 | -2.45 | UNP ahead |
| 2025-03-24 | 80.94 | 94.65 | -2.20 | UNP ahead |
| 2025-03-21 | 80.18 | 94.12 | -2.31 | UNP ahead |
| 2025-03-20 | 81.29 | 94.49 | -2.12 | UNP ahead |
| 2025-03-19 | 81.53 | 95.13 | -2.23 | UNP ahead |
| 2025-03-18 | 82.05 | 95.41 | -2.19 | UNP ahead |
| 2025-03-17 | 82.24 | 95.72 | -2.23 | UNP ahead |
| 2025-03-14 | 81.37 | 95.59 | -2.47 | UNP ahead |
| 2025-03-13 | 78.99 | 94.29 | -2.86 | UNP ahead |
| 2025-03-12 | 80.12 | 95.57 | -2.90 | UNP ahead |
| 2025-03-11 | 80.04 | 95.69 | -3.00 | UNP ahead |
| 2025-03-10 | 83.11 | 99.92 | -3.20 | UNP ahead |
| 2025-03-07 | 84.76 | 100.33 | -2.89 | UNP ahead |
| 2025-03-06 | 83.87 | 98.70 | -2.81 | UNP ahead |
| 2025-03-05 | 83.84 | 98.04 | -2.71 | UNP ahead |
| 2025-03-04 | 84.60 | 97.20 | -2.32 | UNP ahead |
| 2025-03-03 | 86.58 | 98.92 | -2.22 | UNP ahead |
| 2025-02-28 | 86.80 | 99.28 | -2.28 | UNP ahead |
| 2025-02-27 | 86.80 | 98.62 | -2.15 | UNP ahead |
| 2025-02-26 | 86.71 | 98.79 | -2.24 | UNP ahead |
| 2025-02-25 | 87.01 | 98.95 | -2.23 | UNP ahead |
| 2025-02-24 | 86.25 | 97.52 | -2.11 | UNP ahead |
| 2025-02-21 | 87.58 | 98.82 | -2.09 | UNP ahead |
| 2025-02-20 | 88.02 | 99.66 | -2.20 | UNP ahead |
| 2025-02-19 | 87.88 | 99.42 | -2.21 | UNP ahead |
| 2025-02-18 | 91.21 | 101.08 | -1.71 | UNP ahead |
| 2025-02-14 | 90.48 | 100.29 | -1.73 | UNP ahead |
| 2025-02-13 | 89.75 | 101.00 | -2.14 | UNP ahead |
| 2025-02-12 | 89.26 | 100.01 | -2.06 | UNP ahead |
| 2025-02-11 | 89.78 | 99.69 | -1.85 | UNP ahead |
| 2025-02-10 | 89.70 | 98.33 | -1.53 | UNP ahead |
| 2025-02-07 | 88.37 | 97.42 | -1.69 | UNP ahead |
| 2025-02-06 | 88.77 | 98.00 | -1.74 | UNP ahead |
| 2025-02-05 | 89.15 | 98.39 | -1.75 | UNP ahead |
| 2025-02-04 | 89.13 | 97.99 | -1.67 | UNP ahead |
| 2025-02-03 | 88.15 | 97.80 | -1.93 | UNP ahead |
| 2025-01-31 | 89.13 | 99.72 | -2.19 | UNP ahead |
| 2025-01-30 | 89.10 | 100.58 | -2.47 | UNP ahead |
| 2025-01-29 | 89.43 | 100.43 | -2.36 | UNP ahead |
| 2025-01-28 | 88.61 | 100.27 | -2.62 | UNP ahead |
| 2025-01-27 | 91.21 | 102.39 | -2.43 | UNP ahead |
| 2025-01-24 | 88.64 | 100.12 | -2.65 | UNP ahead |
| 2025-01-23 | 91.30 | 99.82 | -1.74 | UNP ahead |
| 2025-01-22 | 90.13 | 94.89 | -0.65 | UNP ahead |
| 2025-01-21 | 90.21 | 95.27 | -0.74 | UNP ahead |
| 2025-01-17 | 88.75 | 94.27 | -0.92 | UNP ahead |
| 2025-01-16 | 89.40 | 94.53 | -0.79 | UNP ahead |
| 2025-01-15 | 88.02 | 92.91 | -0.74 | UNP ahead |
| 2025-01-14 | 87.15 | 92.31 | -0.85 | UNP ahead |
| 2025-01-13 | 86.47 | 91.26 | -0.75 | UNP ahead |
| 2025-01-10 | 86.17 | 90.63 | -0.65 | UNP ahead |
| 2025-01-08 | 87.31 | 93.29 | -1.12 | UNP ahead |
| 2025-01-07 | 87.28 | 92.78 | -0.97 | UNP ahead |
| 2025-01-06 | 86.77 | 92.56 | -1.09 | UNP ahead |
| 2025-01-03 | 87.69 | 93.16 | -0.97 | UNP ahead |
| 2025-01-02 | 87.20 | 92.20 | -0.83 | UNP ahead |
| 2024-12-31 | 87.50 | 91.77 | -0.59 | UNP ahead |
| 2024-12-30 | 87.17 | 91.67 | -0.67 | UNP ahead |
| 2024-12-27 | 88.02 | 92.53 | -0.66 | UNP ahead |
| 2024-12-26 | 88.18 | 92.65 | -0.65 | UNP ahead |
| 2024-12-24 | 88.31 | 92.46 | -0.54 | UNP ahead |
| 2024-12-23 | 87.36 | 91.40 | -0.53 | UNP ahead |
| 2024-12-20 | 86.36 | 91.08 | -0.76 | UNP ahead |
| 2024-12-19 | 85.63 | 89.80 | -0.60 | UNP ahead |
| 2024-12-18 | 86.98 | 90.36 | -0.32 | near the usual relationship |
| 2024-12-17 | 89.29 | 92.51 | -0.24 | near the usual relationship |
| 2024-12-16 | 89.32 | 93.72 | -0.61 | UNP ahead |
| 2024-12-13 | 90.13 | 94.56 | -0.61 | UNP ahead |
| 2024-12-12 | 91.32 | 94.05 | -0.06 | near the usual relationship |
| 2024-12-11 | 91.13 | 94.08 | -0.13 | near the usual relationship |
| 2024-12-10 | 92.65 | 95.41 | -0.06 | near the usual relationship |
| 2024-12-09 | 92.11 | 93.98 | +0.21 | near the usual relationship |
| 2024-12-06 | 93.41 | 94.00 | +0.62 | CSX ahead |
| 2024-12-05 | 93.87 | 94.42 | +0.64 | CSX ahead |
| 2024-12-04 | 95.72 | 94.57 | +1.17 | CSX ahead |
| 2024-12-03 | 97.61 | 95.37 | +1.51 | CSX ahead |
| 2024-12-02 | 98.54 | 96.90 | +1.33 | CSX ahead |
| 2024-11-29 | 99.11 | 98.46 | +1.04 | CSX ahead |
| 2024-11-27 | 99.19 | 98.69 | +1.00 | CSX ahead |
| 2024-11-26 | 99.48 | 98.85 | +1.04 | CSX ahead |
| 2024-11-25 | 99.30 | 100.33 | +0.54 | CSX ahead |
| 2024-11-22 | 97.02 | 97.55 | +0.69 | CSX ahead |
| 2024-11-21 | 95.82 | 96.19 | +0.75 | CSX ahead |
| 2024-11-20 | 93.74 | 93.99 | +0.78 | CSX ahead |
| 2024-11-19 | 93.82 | 93.88 | +0.85 | CSX ahead |
| 2024-11-18 | 94.82 | 94.33 | +1.03 | CSX ahead |
| 2024-11-15 | 95.25 | 94.80 | +1.03 | CSX ahead |
| 2024-11-14 | 96.61 | 94.80 | +1.46 | CSX ahead |
| 2024-11-13 | 98.92 | 96.75 | +1.57 | CSX ahead |
| 2024-11-12 | 97.97 | 96.14 | +1.48 | CSX ahead |
| 2024-11-11 | 99.02 | 97.37 | +1.43 | CSX ahead |
| 2024-11-08 | 97.61 | 97.18 | +1.06 | CSX ahead |
| 2024-11-07 | 96.42 | 97.61 | +0.55 | CSX ahead |
| 2024-11-06 | 100.00 | 100.00 | +0.94 | CSX ahead |
One-day company-specific moves (4+ standard deviations, which block ideas for 10 sessions): Jul 17, 2025 (CSX +3.7%, UNP -1.6%); Jul 24, 2025 (CSX +0.1%, UNP -4.5%); Aug 22, 2025 (CSX -3.6%, UNP +1.1%); Sep 29, 2025 (CSX +5.3%, UNP +0.4%).
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)
2 simulated trades to Nov 3, 2026: +11.58% per trade on average after costs, 2 won.
| Legs | Entered | Exited | Why | Days | Before costs | Costs + borrow | After costs |
|---|---|---|---|---|---|---|---|
| Long UNP · Short CSX | Nov 6, 2020 | Feb 24, 2022 | converged | 475 | $1,142.48 | -$102.96 | $1,167.15 (+11.67%) |
| Long CSX · Short UNP | Aug 13, 2020 | Oct 23, 2020 | converged | 71 | $1,222.39 | -$54.22 | $1,149.34 (+11.49%) |
Per $10,000 a leg. A replay on today's companies cannot prove an edge.
The companies
CSX and UNP at a glance
CSX CSX Corporation
- Listing
- Nasdaq · SEC CIK 277948
- Industry
- Railroads · SIC 4011 Railroads, Line-Haul Operating
- Market value
- $93.5B
- Price history
- 2,534 daily closes, Oct 12, 2016 to Nov 10, 2026
UNP Union Pacific Corporation
- Listing
- NYSE · SEC CIK 100885
- Industry
- Railroads · SIC 4011 Railroads, Line-Haul Operating
- Market value
- $180.3B
- Price history
- 2,534 daily closes, Oct 12, 2016 to Nov 10, 2026
Daily prices: Nasdaq.com. Filings and industry codes: SEC EDGAR. Earnings dates: Nasdaq earnings calendar.
Related
All pairs →Other rivals of CSX and UNP
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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.
