Booz Allen Hamilton Holding Corporation vs CGI Inc.
WatchlistBAH / GIBPrices through Nov 6, 2026
Why these are rivals: #1 and #2 by market value ($19B vs $10B) in Nasdaq's "Professional Services" industry; SEC SIC 8742 / 8742 (same major group); #1 and #2 by market value ($19B vs $10B) with SEC SIC 8742 (Services-Management Consulting Services).
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: 0.47 (needs >= 0.60)
- Mean reversion: ADF t-statistic of the spread: -2.79 (needs <= -2.873 (5% critical value))
Business leadership
Business size
Annual revenue reported to the SEC. Scale, not market share.
| Year | BAH | GIB | Larger |
|---|---|---|---|
| 2025 | $11.2B | - | - |
| 2024 | $12.0B | - | - |
| 2023 | $10.7B | - | - |
| 2022 | $9.3B | - | - |
| 2021 | $8.4B | - | - |
| 2020 | $7.9B | - | - |
Market value: BAH $10.3B, GIB $18.8B.
Stock leadership
Neither is clearly ahead
Measured against the pair's own last 252 trading days.
The gap is 0.20 standard deviations, close to the usual relationship. 9 lead switches in the last year.
| Price change | 3 mo | 6 mo | 12 mo |
|---|---|---|---|
| BAH | +9.6% | +10.8% | -1.5% |
| GIB | +10.7% | +22.1% | -7.0% |
Relationship
Not a measured twin today
Only these tests can make a pair tradable on paper.
- Pass
- Aligned sessions: 2516 (needs >= 254)
- Fail
- Co-movement: daily return correlation, 252 sessions: 0.47 (needs >= 0.60)
- Fail
- Mean reversion: ADF t-statistic of the spread: -2.79 (needs <= -2.873 (5% critical value))
- Pass
- Speed: half-life of the spread, sessions: 11.39 (needs <= 63)
- Data
- Both stocks current
The twins over two years
Prices side by side, and the gap between them
BAH Booz Allen Hamilton Holding Corporation GIB CGI Inc.Price index, 100 = 2024-11-04. Tint = which stock is ahead of the pair's usual 1-year relationship (z beyond +/-0.5).
Spread z-score: BAH relative to GIB, against the 252 sessions before each day. Above 0: BAH ahead; below 0: GIB ahead. Lines at +/-2 (idea) and +/-4 (stop).
Data table (504 sessions)
| Date | BAH index | GIB index | z | Ahead |
|---|---|---|---|---|
| 2026-11-06 | 46.74 | 74.43 | -0.20 | near the usual relationship |
| 2026-11-05 | 48.91 | 73.60 | +0.59 | BAH ahead |
| 2026-11-04 | 48.35 | 73.51 | +0.45 | near the usual relationship |
| 2026-11-03 | 47.65 | 72.48 | +0.45 | near the usual relationship |
| 2026-11-02 | 48.20 | 73.72 | +0.38 | near the usual relationship |
| 2026-10-30 | 48.46 | 71.99 | +0.79 | BAH ahead |
| 2026-10-29 | 46.12 | 71.12 | +0.28 | near the usual relationship |
| 2026-10-28 | 45.71 | 70.88 | +0.21 | near the usual relationship |
| 2026-10-27 | 45.67 | 71.16 | +0.14 | near the usual relationship |
| 2026-10-26 | 45.65 | 73.18 | -0.26 | near the usual relationship |
| 2026-10-23 | 42.89 | 73.26 | -1.14 | GIB ahead |
| 2026-10-22 | 43.02 | 73.41 | -1.13 | GIB ahead |
| 2026-10-21 | 41.09 | 71.10 | -1.33 | GIB ahead |
| 2026-10-20 | 41.05 | 70.57 | -1.25 | GIB ahead |
| 2026-10-19 | 40.55 | 67.74 | -0.87 | GIB ahead |
| 2026-10-16 | 40.66 | 67.29 | -0.74 | GIB ahead |
| 2026-10-15 | 40.80 | 66.90 | -0.63 | GIB ahead |
| 2026-10-14 | 39.35 | 64.65 | -0.65 | GIB ahead |
| 2026-10-13 | 39.60 | 64.44 | -0.53 | GIB ahead |
| 2026-10-12 | 40.32 | 63.18 | -0.02 | near the usual relationship |
| 2026-10-09 | 40.49 | 62.63 | +0.16 | near the usual relationship |
| 2026-10-08 | 39.90 | 62.26 | +0.03 | near the usual relationship |
| 2026-10-07 | 37.61 | 61.66 | -0.64 | GIB ahead |
| 2026-10-06 | 37.31 | 62.19 | -0.88 | GIB ahead |
| 2026-10-05 | 37.57 | 63.50 | -1.07 | GIB ahead |
| 2026-10-02 | 36.88 | 62.72 | -1.16 | GIB ahead |
| 2026-10-01 | 38.59 | 63.43 | -0.71 | GIB ahead |
| 2026-09-30 | 38.01 | 60.79 | -0.34 | near the usual relationship |
| 2026-09-29 | 38.17 | 60.42 | -0.21 | near the usual relationship |
| 2026-09-28 | 38.47 | 60.50 | -0.13 | near the usual relationship |
| 2026-09-25 | 39.95 | 60.56 | +0.37 | near the usual relationship |
| 2026-09-24 | 40.42 | 60.89 | +0.46 | near the usual relationship |
| 2026-09-23 | 41.42 | 61.77 | +0.59 | BAH ahead |
| 2026-09-22 | 41.77 | 62.09 | +0.64 | BAH ahead |
| 2026-09-21 | 42.37 | 62.03 | +0.84 | BAH ahead |
| 2026-09-18 | 42.20 | 61.99 | +0.80 | BAH ahead |
| 2026-09-17 | 43.20 | 63.58 | +0.77 | BAH ahead |
| 2026-09-16 | 42.94 | 63.35 | +0.74 | BAH ahead |
| 2026-09-15 | 43.84 | 64.44 | +0.79 | BAH ahead |
| 2026-09-14 | 43.32 | 65.15 | +0.48 | near the usual relationship |
| 2026-09-11 | 41.56 | 62.74 | +0.43 | near the usual relationship |
| 2026-09-10 | 41.44 | 61.71 | +0.61 | BAH ahead |
| 2026-09-09 | 39.54 | 61.52 | +0.02 | near the usual relationship |
| 2026-09-08 | 39.49 | 63.13 | -0.35 | near the usual relationship |
| 2026-09-04 | 39.86 | 65.81 | -0.78 | GIB ahead |
| 2026-09-03 | 40.46 | 66.88 | -0.81 | GIB ahead |
| 2026-09-02 | 40.07 | 65.10 | -0.58 | GIB ahead |
| 2026-09-01 | 41.28 | 65.87 | -0.34 | near the usual relationship |
| 2026-08-31 | 41.42 | 67.24 | -0.58 | GIB ahead |
| 2026-08-28 | 41.20 | 66.81 | -0.57 | GIB ahead |
| 2026-08-27 | 41.00 | 66.58 | -0.59 | GIB ahead |
| 2026-08-26 | 40.65 | 65.45 | -0.48 | near the usual relationship |
| 2026-08-25 | 40.43 | 66.57 | -0.79 | GIB ahead |
| 2026-08-24 | 41.19 | 66.86 | -0.61 | GIB ahead |
| 2026-08-21 | 42.19 | 67.00 | -0.32 | near the usual relationship |
| 2026-08-20 | 41.81 | 66.36 | -0.32 | near the usual relationship |
| 2026-08-19 | 43.17 | 66.96 | -0.02 | near the usual relationship |
| 2026-08-18 | 41.49 | 65.18 | -0.19 | near the usual relationship |
| 2026-08-17 | 41.05 | 64.76 | -0.25 | near the usual relationship |
| 2026-08-14 | 42.42 | 65.60 | +0.00 | near the usual relationship |
| 2026-08-13 | 42.93 | 66.80 | -0.08 | near the usual relationship |
| 2026-08-12 | 42.93 | 66.09 | +0.05 | near the usual relationship |
| 2026-08-11 | 43.02 | 66.89 | -0.08 | near the usual relationship |
| 2026-08-10 | 42.66 | 67.24 | -0.26 | near the usual relationship |
| 2026-08-07 | 41.64 | 66.79 | -0.49 | near the usual relationship |
| 2026-08-06 | 40.48 | 66.28 | -0.77 | GIB ahead |
| 2026-08-05 | 39.38 | 64.88 | -0.86 | GIB ahead |
| 2026-08-04 | 40.30 | 66.49 | -0.88 | GIB ahead |
| 2026-08-03 | 38.96 | 65.24 | -1.08 | GIB ahead |
| 2026-07-31 | 38.18 | 65.24 | -1.35 | GIB ahead |
| 2026-07-30 | 37.41 | 65.45 | -1.67 | GIB ahead |
| 2026-07-29 | 38.42 | 66.57 | -1.56 | GIB ahead |
| 2026-07-28 | 40.08 | 63.80 | -0.46 | near the usual relationship |
| 2026-07-27 | 39.23 | 62.08 | -0.38 | near the usual relationship |
| 2026-07-24 | 39.72 | 59.36 | +0.36 | near the usual relationship |
| 2026-07-23 | 36.07 | 57.00 | -0.37 | near the usual relationship |
| 2026-07-22 | 36.21 | 58.68 | -0.70 | GIB ahead |
| 2026-07-21 | 34.96 | 59.55 | -1.36 | GIB ahead |
| 2026-07-20 | 35.33 | 60.99 | -1.55 | GIB ahead |
| 2026-07-17 | 35.71 | 60.87 | -1.40 | GIB ahead |
| 2026-07-16 | 35.74 | 60.89 | -1.40 | GIB ahead |
| 2026-07-15 | 35.01 | 58.89 | -1.24 | GIB ahead |
| 2026-07-14 | 34.80 | 58.58 | -1.26 | GIB ahead |
| 2026-07-13 | 35.48 | 60.54 | -1.45 | GIB ahead |
| 2026-07-10 | 34.37 | 59.92 | -1.76 | GIB ahead |
| 2026-07-09 | 34.59 | 59.77 | -1.65 | GIB ahead |
| 2026-07-08 | 34.32 | 59.24 | -1.65 | GIB ahead |
| 2026-07-07 | 34.67 | 60.30 | -1.77 | GIB ahead |
| 2026-07-06 | 34.12 | 59.29 | -1.77 | GIB ahead |
| 2026-07-02 | 34.20 | 59.40 | -1.78 | GIB ahead |
| 2026-07-01 | 32.86 | 58.50 | -2.14 | GIB ahead |
| 2026-06-30 | 33.22 | 58.50 | -2.00 | GIB ahead |
| 2026-06-29 | 33.97 | 56.95 | -1.32 | GIB ahead |
| 2026-06-26 | 34.07 | 57.60 | -1.43 | GIB ahead |
| 2026-06-25 | 32.70 | 55.62 | -1.52 | GIB ahead |
| 2026-06-24 | 34.32 | 56.38 | -1.02 | GIB ahead |
| 2026-06-23 | 34.98 | 55.67 | -0.57 | GIB ahead |
| 2026-06-22 | 34.68 | 54.80 | -0.47 | near the usual relationship |
| 2026-06-18 | 36.34 | 54.76 | +0.20 | near the usual relationship |
| 2026-06-17 | 38.93 | 59.04 | +0.12 | near the usual relationship |
| 2026-06-16 | 40.51 | 59.73 | +0.51 | BAH ahead |
| 2026-06-15 | 40.82 | 58.78 | +0.83 | BAH ahead |
| 2026-06-12 | 42.39 | 59.59 | +1.17 | BAH ahead |
| 2026-06-11 | 42.27 | 59.80 | +1.09 | BAH ahead |
| 2026-06-10 | 42.32 | 59.74 | +1.13 | BAH ahead |
| 2026-06-09 | 43.23 | 60.00 | +1.36 | BAH ahead |
| 2026-06-08 | 43.39 | 59.49 | +1.54 | BAH ahead |
| 2026-06-05 | 43.52 | 60.12 | +1.45 | BAH ahead |
| 2026-06-04 | 43.81 | 60.25 | +1.52 | BAH ahead |
| 2026-06-03 | 42.99 | 59.20 | +1.52 | BAH ahead |
| 2026-06-02 | 43.99 | 61.96 | +1.22 | BAH ahead |
| 2026-06-01 | 46.02 | 63.59 | +1.50 | BAH ahead |
| 2026-05-29 | 43.36 | 62.35 | +0.96 | BAH ahead |
| 2026-05-28 | 44.38 | 60.43 | +1.72 | BAH ahead |
| 2026-05-27 | 44.34 | 59.91 | +1.85 | BAH ahead |
| 2026-05-26 | 43.76 | 59.82 | +1.68 | BAH ahead |
| 2026-05-22 | 43.08 | 59.84 | +1.46 | BAH ahead |
| 2026-05-21 | 41.81 | 58.98 | +1.24 | BAH ahead |
| 2026-05-20 | 42.41 | 58.44 | +1.56 | BAH ahead |
| 2026-05-19 | 42.16 | 57.81 | +1.63 | BAH ahead |
| 2026-05-18 | 41.02 | 58.15 | +1.17 | BAH ahead |
| 2026-05-15 | 39.79 | 56.39 | +1.18 | BAH ahead |
| 2026-05-14 | 40.18 | 55.68 | +1.49 | BAH ahead |
| 2026-05-13 | 39.20 | 55.42 | +1.21 | BAH ahead |
| 2026-05-12 | 41.30 | 56.47 | +1.67 | BAH ahead |
| 2026-05-11 | 41.04 | 58.49 | +1.11 | BAH ahead |
| 2026-05-08 | 42.19 | 60.95 | +0.92 | BAH ahead |
| 2026-05-07 | 42.08 | 60.84 | +0.90 | BAH ahead |
| 2026-05-06 | 41.77 | 59.57 | +1.09 | BAH ahead |
| 2026-05-05 | 41.76 | 59.83 | +1.03 | BAH ahead |
| 2026-05-04 | 42.62 | 59.44 | +1.39 | BAH ahead |
| 2026-05-01 | 42.88 | 59.49 | +1.47 | BAH ahead |
| 2026-04-30 | 42.59 | 58.48 | +1.62 | BAH ahead |
| 2026-04-29 | 41.86 | 58.61 | +1.36 | BAH ahead |
| 2026-04-28 | 41.75 | 65.69 | -0.24 | near the usual relationship |
| 2026-04-27 | 41.72 | 65.65 | -0.24 | near the usual relationship |
| 2026-04-24 | 43.12 | 64.96 | +0.35 | near the usual relationship |
| 2026-04-23 | 43.26 | 65.24 | +0.34 | near the usual relationship |
| 2026-04-22 | 42.37 | 68.25 | -0.57 | GIB ahead |
| 2026-04-21 | 44.35 | 68.63 | -0.02 | near the usual relationship |
| 2026-04-20 | 44.20 | 68.75 | -0.09 | near the usual relationship |
| 2026-04-17 | 44.78 | 68.12 | +0.21 | near the usual relationship |
| 2026-04-16 | 45.28 | 67.26 | +0.54 | BAH ahead |
| 2026-04-15 | 45.07 | 66.19 | +0.69 | BAH ahead |
| 2026-04-14 | 44.58 | 65.68 | +0.65 | BAH ahead |
| 2026-04-13 | 44.80 | 65.60 | +0.74 | BAH ahead |
| 2026-04-10 | 42.80 | 62.34 | +0.81 | BAH ahead |
| 2026-04-09 | 43.55 | 62.82 | +0.94 | BAH ahead |
| 2026-04-08 | 44.68 | 64.32 | +0.97 | BAH ahead |
| 2026-04-07 | 46.04 | 64.95 | +1.25 | BAH ahead |
| 2026-04-06 | 45.84 | 65.73 | +1.03 | BAH ahead |
| 2026-04-02 | 45.52 | 66.11 | +0.86 | BAH ahead |
| 2026-04-01 | 44.01 | 64.58 | +0.72 | BAH ahead |
| 2026-03-31 | 42.73 | 65.32 | +0.16 | near the usual relationship |
| 2026-03-30 | 43.23 | 64.86 | +0.42 | near the usual relationship |
| 2026-03-27 | 42.98 | 63.49 | +0.64 | BAH ahead |
| 2026-03-26 | 43.99 | 65.03 | +0.63 | BAH ahead |
| 2026-03-25 | 43.87 | 64.73 | +0.66 | BAH ahead |
| 2026-03-24 | 43.19 | 64.24 | +0.55 | BAH ahead |
| 2026-03-23 | 43.75 | 66.05 | +0.35 | near the usual relationship |
| 2026-03-20 | 43.78 | 65.05 | +0.57 | BAH ahead |
| 2026-03-19 | 44.26 | 64.25 | +0.89 | BAH ahead |
| 2026-03-18 | 43.07 | 63.90 | +0.59 | BAH ahead |
| 2026-03-17 | 42.23 | 64.23 | +0.24 | near the usual relationship |
| 2026-03-16 | 41.49 | 64.49 | -0.06 | near the usual relationship |
| 2026-03-13 | 42.86 | 63.98 | +0.50 | BAH ahead |
| 2026-03-12 | 42.22 | 64.40 | +0.20 | near the usual relationship |
| 2026-03-11 | 41.58 | 65.27 | -0.19 | near the usual relationship |
| 2026-03-10 | 42.45 | 66.24 | -0.12 | near the usual relationship |
| 2026-03-09 | 44.59 | 67.69 | +0.27 | near the usual relationship |
| 2026-03-06 | 44.84 | 67.96 | +0.29 | near the usual relationship |
| 2026-03-05 | 43.70 | 67.13 | +0.10 | near the usual relationship |
| 2026-03-04 | 42.90 | 65.24 | +0.25 | near the usual relationship |
| 2026-03-03 | 43.37 | 65.46 | +0.35 | near the usual relationship |
| 2026-03-02 | 42.61 | 64.68 | +0.28 | near the usual relationship |
| 2026-02-27 | 43.17 | 65.55 | +0.28 | near the usual relationship |
| 2026-02-26 | 43.68 | 65.43 | +0.47 | near the usual relationship |
| 2026-02-25 | 41.13 | 63.38 | +0.08 | near the usual relationship |
| 2026-02-24 | 41.45 | 63.09 | +0.26 | near the usual relationship |
| 2026-02-23 | 40.66 | 63.71 | -0.14 | near the usual relationship |
| 2026-02-20 | 42.28 | 66.41 | -0.17 | near the usual relationship |
| 2026-02-19 | 43.77 | 65.88 | +0.42 | near the usual relationship |
| 2026-02-18 | 42.87 | 66.02 | +0.11 | near the usual relationship |
| 2026-02-17 | 41.85 | 65.57 | -0.12 | near the usual relationship |
| 2026-02-13 | 43.43 | 66.60 | +0.18 | near the usual relationship |
| 2026-02-12 | 42.67 | 67.20 | -0.19 | near the usual relationship |
| 2026-02-11 | 43.69 | 67.38 | +0.10 | near the usual relationship |
| 2026-02-10 | 49.26 | 72.33 | +0.76 | BAH ahead |
| 2026-02-09 | 49.35 | 72.43 | +0.77 | BAH ahead |
| 2026-02-06 | 48.74 | 73.93 | +0.33 | near the usual relationship |
| 2026-02-05 | 46.28 | 73.86 | -0.37 | near the usual relationship |
| 2026-02-04 | 46.57 | 73.91 | -0.30 | near the usual relationship |
| 2026-02-03 | 45.45 | 71.17 | -0.12 | near the usual relationship |
| 2026-02-02 | 47.91 | 77.40 | -0.54 | GIB ahead |
| 2026-01-30 | 48.42 | 76.65 | -0.27 | near the usual relationship |
| 2026-01-29 | 48.59 | 76.58 | -0.22 | near the usual relationship |
| 2026-01-28 | 49.89 | 77.16 | +0.03 | near the usual relationship |
| 2026-01-27 | 49.04 | 78.84 | -0.49 | near the usual relationship |
| 2026-01-26 | 51.43 | 79.70 | -0.01 | near the usual relationship |
| 2026-01-23 | 55.98 | 79.85 | +1.07 | BAH ahead |
| 2026-01-22 | 52.44 | 78.93 | +0.35 | near the usual relationship |
| 2026-01-21 | 52.33 | 78.59 | +0.37 | near the usual relationship |
| 2026-01-20 | 51.18 | 78.03 | +0.17 | near the usual relationship |
| 2026-01-16 | 53.33 | 82.03 | +0.05 | near the usual relationship |
| 2026-01-15 | 53.18 | 82.78 | -0.11 | near the usual relationship |
| 2026-01-14 | 52.76 | 84.60 | -0.49 | near the usual relationship |
| 2026-01-13 | 52.19 | 83.90 | -0.53 | GIB ahead |
| 2026-01-12 | 52.99 | 84.72 | -0.46 | near the usual relationship |
| 2026-01-09 | 52.67 | 83.84 | -0.42 | near the usual relationship |
| 2026-01-08 | 51.59 | 84.36 | -0.75 | GIB ahead |
| 2026-01-07 | 49.43 | 82.20 | -0.96 | GIB ahead |
| 2026-01-06 | 49.30 | 82.94 | -1.11 | GIB ahead |
| 2026-01-05 | 48.92 | 81.34 | -0.98 | GIB ahead |
| 2026-01-02 | 46.48 | 81.44 | -1.62 | GIB ahead |
| 2025-12-31 | 46.19 | 82.48 | -1.87 | GIB ahead |
| 2025-12-30 | 46.63 | 83.08 | -1.87 | GIB ahead |
| 2025-12-29 | 46.61 | 83.83 | -2.00 | GIB ahead |
| 2025-12-26 | 46.76 | 83.85 | -1.99 | GIB ahead |
| 2025-12-24 | 46.63 | 83.84 | -2.05 | GIB ahead |
| 2025-12-23 | 46.35 | 83.48 | -2.09 | GIB ahead |
| 2025-12-22 | 47.36 | 83.30 | -1.81 | GIB ahead |
| 2025-12-19 | 46.69 | 82.78 | -1.93 | GIB ahead |
| 2025-12-18 | 47.10 | 82.43 | -1.78 | GIB ahead |
| 2025-12-17 | 47.39 | 82.47 | -1.72 | GIB ahead |
| 2025-12-16 | 46.76 | 81.23 | -1.72 | GIB ahead |
| 2025-12-15 | 50.31 | 81.30 | -0.82 | GIB ahead |
| 2025-12-12 | 50.80 | 81.10 | -0.67 | GIB ahead |
| 2025-12-11 | 51.68 | 80.65 | -0.40 | near the usual relationship |
| 2025-12-10 | 50.94 | 80.54 | -0.57 | GIB ahead |
| 2025-12-09 | 49.57 | 80.60 | -0.91 | GIB ahead |
| 2025-12-08 | 50.02 | 80.98 | -0.87 | GIB ahead |
| 2025-12-05 | 48.19 | 82.44 | -1.54 | GIB ahead |
| 2025-12-04 | 48.00 | 81.75 | -1.50 | GIB ahead |
| 2025-12-03 | 45.17 | 79.98 | -1.97 | GIB ahead |
| 2025-12-02 | 44.70 | 79.32 | -2.01 | GIB ahead |
| 2025-12-01 | 45.14 | 78.88 | -1.83 | GIB ahead |
| 2025-11-28 | 45.70 | 79.11 | -1.73 | GIB ahead |
| 2025-11-26 | 45.59 | 78.98 | -1.75 | GIB ahead |
| 2025-11-25 | 45.81 | 79.70 | -1.81 | GIB ahead |
| 2025-11-24 | 44.22 | 78.55 | -2.06 | GIB ahead |
| 2025-11-21 | 44.23 | 78.34 | -2.05 | GIB ahead |
| 2025-11-20 | 43.75 | 76.87 | -1.98 | GIB ahead |
| 2025-11-19 | 44.04 | 77.31 | -1.97 | GIB ahead |
| 2025-11-18 | 44.33 | 76.91 | -1.83 | GIB ahead |
| 2025-11-17 | 44.72 | 76.95 | -1.72 | GIB ahead |
| 2025-11-14 | 45.40 | 77.61 | -1.62 | GIB ahead |
| 2025-11-13 | 46.11 | 78.41 | -1.54 | GIB ahead |
| 2025-11-12 | 46.46 | 78.13 | -1.40 | GIB ahead |
| 2025-11-11 | 47.68 | 77.52 | -1.05 | GIB ahead |
| 2025-11-10 | 47.80 | 76.59 | -0.89 | GIB ahead |
| 2025-11-07 | 47.89 | 77.01 | -0.92 | GIB ahead |
| 2025-11-06 | 46.86 | 75.78 | -0.97 | GIB ahead |
| 2025-11-05 | 47.43 | 80.06 | -1.37 | GIB ahead |
| 2025-11-04 | 46.80 | 76.28 | -1.04 | GIB ahead |
| 2025-11-03 | 46.82 | 77.40 | -1.16 | GIB ahead |
| 2025-10-31 | 47.73 | 77.74 | -1.03 | GIB ahead |
| 2025-10-30 | 45.35 | 77.83 | -1.48 | GIB ahead |
| 2025-10-29 | 45.36 | 76.80 | -1.36 | GIB ahead |
| 2025-10-28 | 46.85 | 78.79 | -1.31 | GIB ahead |
| 2025-10-27 | 47.38 | 78.62 | -1.21 | GIB ahead |
| 2025-10-24 | 50.05 | 78.03 | -0.69 | GIB ahead |
| 2025-10-23 | 54.92 | 78.88 | -0.02 | near the usual relationship |
| 2025-10-22 | 54.07 | 78.33 | -0.10 | near the usual relationship |
| 2025-10-21 | 55.11 | 77.98 | +0.08 | near the usual relationship |
| 2025-10-20 | 55.28 | 77.80 | +0.12 | near the usual relationship |
| 2025-10-17 | 53.69 | 77.83 | -0.12 | near the usual relationship |
| 2025-10-16 | 53.27 | 77.81 | -0.19 | near the usual relationship |
| 2025-10-15 | 52.76 | 77.29 | -0.22 | near the usual relationship |
| 2025-10-14 | 53.55 | 80.56 | -0.44 | near the usual relationship |
| 2025-10-13 | 52.73 | 79.95 | -0.51 | GIB ahead |
| 2025-10-10 | 53.19 | 79.35 | -0.38 | near the usual relationship |
| 2025-10-09 | 54.61 | 80.94 | -0.34 | near the usual relationship |
| 2025-10-08 | 56.36 | 81.33 | -0.14 | near the usual relationship |
| 2025-10-07 | 56.97 | 80.92 | -0.02 | near the usual relationship |
| 2025-10-06 | 56.75 | 81.40 | -0.10 | near the usual relationship |
| 2025-10-03 | 56.96 | 81.90 | -0.13 | near the usual relationship |
| 2025-10-02 | 56.46 | 80.65 | -0.08 | near the usual relationship |
| 2025-10-01 | 56.18 | 80.40 | -0.10 | near the usual relationship |
| 2025-09-30 | 54.73 | 79.64 | -0.23 | near the usual relationship |
| 2025-09-29 | 54.15 | 79.47 | -0.30 | near the usual relationship |
| 2025-09-26 | 54.25 | 78.76 | -0.23 | near the usual relationship |
| 2025-09-25 | 53.41 | 78.97 | -0.37 | near the usual relationship |
| 2025-09-24 | 54.36 | 81.97 | -0.52 | GIB ahead |
| 2025-09-23 | 53.84 | 81.18 | -0.53 | GIB ahead |
| 2025-09-22 | 54.64 | 83.54 | -0.64 | GIB ahead |
| 2025-09-19 | 55.93 | 82.75 | -0.40 | near the usual relationship |
| 2025-09-18 | 55.42 | 82.44 | -0.44 | near the usual relationship |
| 2025-09-17 | 55.62 | 82.60 | -0.44 | near the usual relationship |
| 2025-09-16 | 55.76 | 83.82 | -0.53 | GIB ahead |
| 2025-09-15 | 55.65 | 83.17 | -0.50 | GIB ahead |
| 2025-09-12 | 57.29 | 83.39 | -0.31 | near the usual relationship |
| 2025-09-11 | 56.86 | 84.23 | -0.44 | near the usual relationship |
| 2025-09-10 | 56.13 | 82.92 | -0.43 | near the usual relationship |
| 2025-09-09 | 56.47 | 85.40 | -0.60 | GIB ahead |
| 2025-09-08 | 55.68 | 86.27 | -0.78 | GIB ahead |
| 2025-09-05 | 56.10 | 86.44 | -0.75 | GIB ahead |
| 2025-09-04 | 56.51 | 85.15 | -0.59 | GIB ahead |
| 2025-09-03 | 58.45 | 86.17 | -0.44 | near the usual relationship |
| 2025-09-02 | 60.28 | 86.38 | -0.24 | near the usual relationship |
| 2025-08-29 | 59.53 | 86.84 | -0.38 | near the usual relationship |
| 2025-08-28 | 59.26 | 86.16 | -0.36 | near the usual relationship |
| 2025-08-27 | 60.66 | 86.21 | -0.20 | near the usual relationship |
| 2025-08-26 | 60.38 | 85.03 | -0.14 | near the usual relationship |
| 2025-08-25 | 59.93 | 85.53 | -0.24 | near the usual relationship |
| 2025-08-22 | 60.20 | 86.64 | -0.30 | near the usual relationship |
| 2025-08-21 | 59.67 | 84.75 | -0.22 | near the usual relationship |
| 2025-08-20 | 59.80 | 84.69 | -0.20 | near the usual relationship |
| 2025-08-19 | 60.04 | 85.01 | -0.20 | near the usual relationship |
| 2025-08-18 | 59.70 | 84.08 | -0.17 | near the usual relationship |
| 2025-08-15 | 59.86 | 83.98 | -0.15 | near the usual relationship |
| 2025-08-14 | 59.22 | 83.85 | -0.22 | near the usual relationship |
| 2025-08-13 | 61.13 | 85.48 | -0.13 | near the usual relationship |
| 2025-08-12 | 59.70 | 83.99 | -0.18 | near the usual relationship |
| 2025-08-11 | 59.79 | 85.01 | -0.26 | near the usual relationship |
| 2025-08-08 | 60.44 | 85.72 | -0.24 | near the usual relationship |
| 2025-08-07 | 60.67 | 85.02 | -0.17 | near the usual relationship |
| 2025-08-06 | 61.26 | 86.30 | -0.21 | near the usual relationship |
| 2025-08-05 | 61.03 | 87.15 | -0.30 | near the usual relationship |
| 2025-08-04 | 61.02 | 86.65 | -0.27 | near the usual relationship |
| 2025-08-01 | 60.07 | 85.32 | -0.27 | near the usual relationship |
| 2025-07-31 | 58.77 | 86.17 | -0.49 | near the usual relationship |
| 2025-07-30 | 58.85 | 86.74 | -0.53 | GIB ahead |
| 2025-07-29 | 59.25 | 89.28 | -0.69 | GIB ahead |
| 2025-07-28 | 58.66 | 89.22 | -0.76 | GIB ahead |
| 2025-07-25 | 61.90 | 90.35 | -0.49 | near the usual relationship |
| 2025-07-24 | 63.04 | 90.71 | -0.40 | near the usual relationship |
| 2025-07-23 | 63.49 | 91.41 | -0.40 | near the usual relationship |
| 2025-07-22 | 61.27 | 90.51 | -0.59 | GIB ahead |
| 2025-07-21 | 59.86 | 89.65 | -0.68 | GIB ahead |
| 2025-07-18 | 59.87 | 88.92 | -0.63 | GIB ahead |
| 2025-07-17 | 59.60 | 89.73 | -0.73 | GIB ahead |
| 2025-07-16 | 57.50 | 90.27 | -1.02 | GIB ahead |
| 2025-07-15 | 57.37 | 89.54 | -0.99 | GIB ahead |
| 2025-07-14 | 59.00 | 90.35 | -0.87 | GIB ahead |
| 2025-07-11 | 58.56 | 89.87 | -0.89 | GIB ahead |
| 2025-07-10 | 58.96 | 91.48 | -0.97 | GIB ahead |
| 2025-07-09 | 58.60 | 91.85 | -1.05 | GIB ahead |
| 2025-07-08 | 58.90 | 92.44 | -1.06 | GIB ahead |
| 2025-07-07 | 60.47 | 93.16 | -0.95 | GIB ahead |
| 2025-07-03 | 59.65 | 94.89 | -1.17 | GIB ahead |
| 2025-07-02 | 59.29 | 94.06 | -1.16 | GIB ahead |
| 2025-07-01 | 58.76 | 94.59 | -1.26 | GIB ahead |
| 2025-06-30 | 57.02 | 93.67 | -1.41 | GIB ahead |
| 2025-06-27 | 56.32 | 92.33 | -1.40 | GIB ahead |
| 2025-06-26 | 56.55 | 93.00 | -1.43 | GIB ahead |
| 2025-06-25 | 55.49 | 92.49 | -1.53 | GIB ahead |
| 2025-06-24 | 54.85 | 94.30 | -1.75 | GIB ahead |
| 2025-06-23 | 55.14 | 94.78 | -1.77 | GIB ahead |
| 2025-06-20 | 54.74 | 94.13 | -1.79 | GIB ahead |
| 2025-06-18 | 55.85 | 95.88 | -1.79 | GIB ahead |
| 2025-06-17 | 55.97 | 96.37 | -1.83 | GIB ahead |
| 2025-06-16 | 55.95 | 97.40 | -1.93 | GIB ahead |
| 2025-06-13 | 56.57 | 96.68 | -1.82 | GIB ahead |
| 2025-06-12 | 55.91 | 97.93 | -2.01 | GIB ahead |
| 2025-06-11 | 55.11 | 97.17 | -2.08 | GIB ahead |
| 2025-06-10 | 55.11 | 97.15 | -2.10 | GIB ahead |
| 2025-06-09 | 55.80 | 96.46 | -1.99 | GIB ahead |
| 2025-06-06 | 56.54 | 96.36 | -1.91 | GIB ahead |
| 2025-06-05 | 55.93 | 96.19 | -2.00 | GIB ahead |
| 2025-06-04 | 56.13 | 96.30 | -2.00 | GIB ahead |
| 2025-06-03 | 57.45 | 94.59 | -1.74 | GIB ahead |
| 2025-06-02 | 56.57 | 96.12 | -1.97 | GIB ahead |
| 2025-05-30 | 58.18 | 96.11 | -1.80 | GIB ahead |
| 2025-05-29 | 57.89 | 96.18 | -1.86 | GIB ahead |
| 2025-05-28 | 57.31 | 95.70 | -1.91 | GIB ahead |
| 2025-05-27 | 60.13 | 96.75 | -1.67 | GIB ahead |
| 2025-05-23 | 59.02 | 95.04 | -1.69 | GIB ahead |
| 2025-05-22 | 70.71 | 95.35 | -0.43 | near the usual relationship |
| 2025-05-21 | 70.32 | 96.14 | -0.54 | GIB ahead |
| 2025-05-20 | 71.02 | 96.73 | -0.52 | GIB ahead |
| 2025-05-19 | 70.80 | 96.58 | -0.53 | GIB ahead |
| 2025-05-16 | 70.53 | 96.58 | -0.56 | GIB ahead |
| 2025-05-15 | 69.91 | 96.43 | -0.62 | GIB ahead |
| 2025-05-14 | 67.60 | 95.46 | -0.79 | GIB ahead |
| 2025-05-13 | 67.75 | 96.11 | -0.83 | GIB ahead |
| 2025-05-12 | 68.27 | 96.41 | -0.81 | GIB ahead |
| 2025-05-09 | 67.79 | 94.67 | -0.73 | GIB ahead |
| 2025-05-08 | 67.70 | 94.92 | -0.77 | GIB ahead |
| 2025-05-07 | 67.46 | 94.72 | -0.78 | GIB ahead |
| 2025-05-06 | 67.54 | 93.69 | -0.70 | GIB ahead |
| 2025-05-05 | 65.26 | 93.92 | -0.97 | GIB ahead |
| 2025-05-02 | 65.61 | 93.75 | -0.93 | GIB ahead |
| 2025-05-01 | 65.45 | 93.26 | -0.92 | GIB ahead |
| 2025-04-30 | 65.72 | 94.77 | -1.01 | GIB ahead |
| 2025-04-29 | 65.33 | 95.66 | -1.12 | GIB ahead |
| 2025-04-28 | 65.06 | 94.64 | -1.09 | GIB ahead |
| 2025-04-25 | 65.49 | 94.25 | -1.02 | GIB ahead |
| 2025-04-24 | 65.34 | 94.33 | -1.05 | GIB ahead |
| 2025-04-23 | 63.75 | 93.39 | -1.16 | GIB ahead |
| 2025-04-22 | 63.04 | 94.50 | -1.33 | GIB ahead |
| 2025-04-21 | 61.30 | 93.14 | -1.44 | GIB ahead |
| 2025-04-17 | 62.25 | 94.03 | -1.41 | GIB ahead |
| 2025-04-16 | 60.94 | 93.07 | -1.51 | GIB ahead |
| 2025-04-15 | 60.39 | 92.18 | -1.51 | GIB ahead |
| 2025-04-14 | 61.35 | 92.09 | -1.41 | GIB ahead |
| 2025-04-11 | 59.57 | 90.99 | -1.55 | GIB ahead |
| 2025-04-10 | 59.58 | 87.76 | -1.29 | GIB ahead |
| 2025-04-09 | 59.18 | 91.04 | -1.63 | GIB ahead |
| 2025-04-08 | 58.42 | 86.23 | -1.33 | GIB ahead |
| 2025-04-07 | 58.79 | 86.61 | -1.33 | GIB ahead |
| 2025-04-04 | 59.80 | 86.20 | -1.17 | GIB ahead |
| 2025-04-03 | 61.19 | 89.66 | -1.31 | GIB ahead |
| 2025-04-02 | 61.78 | 91.23 | -1.37 | GIB ahead |
| 2025-04-01 | 58.79 | 90.06 | -1.67 | GIB ahead |
| 2025-03-31 | 57.27 | 89.21 | -1.81 | GIB ahead |
| 2025-03-28 | 57.65 | 87.68 | -1.65 | GIB ahead |
| 2025-03-27 | 57.97 | 88.70 | -1.71 | GIB ahead |
| 2025-03-26 | 58.22 | 89.52 | -1.76 | GIB ahead |
| 2025-03-25 | 58.22 | 90.35 | -1.85 | GIB ahead |
| 2025-03-24 | 57.59 | 89.45 | -1.88 | GIB ahead |
| 2025-03-21 | 57.03 | 88.23 | -1.86 | GIB ahead |
| 2025-03-20 | 56.72 | 88.22 | -1.92 | GIB ahead |
| 2025-03-19 | 61.72 | 92.50 | -1.64 | GIB ahead |
| 2025-03-18 | 63.80 | 92.36 | -1.37 | GIB ahead |
| 2025-03-17 | 63.16 | 93.07 | -1.52 | GIB ahead |
| 2025-03-14 | 61.47 | 92.01 | -1.66 | GIB ahead |
| 2025-03-13 | 60.96 | 89.82 | -1.54 | GIB ahead |
| 2025-03-12 | 61.08 | 92.75 | -1.80 | GIB ahead |
| 2025-03-11 | 60.26 | 92.77 | -1.93 | GIB ahead |
| 2025-03-10 | 61.68 | 93.28 | -1.80 | GIB ahead |
| 2025-03-07 | 63.78 | 93.63 | -1.57 | GIB ahead |
| 2025-03-06 | 59.32 | 92.50 | -2.10 | GIB ahead |
| 2025-03-05 | 60.20 | 92.71 | -2.01 | GIB ahead |
| 2025-03-04 | 57.93 | 91.76 | -2.28 | GIB ahead |
| 2025-03-03 | 56.25 | 92.25 | -2.62 | GIB ahead |
| 2025-02-28 | 58.08 | 92.59 | -2.41 | GIB ahead |
| 2025-02-27 | 60.80 | 98.55 | -2.59 | GIB ahead |
| 2025-02-26 | 62.15 | 100.06 | -2.57 | GIB ahead |
| 2025-02-25 | 62.78 | 101.20 | -2.63 | GIB ahead |
| 2025-02-24 | 61.56 | 100.35 | -2.78 | GIB ahead |
| 2025-02-21 | 61.49 | 100.56 | -2.86 | GIB ahead |
| 2025-02-20 | 62.22 | 104.83 | -3.21 | GIB ahead |
| 2025-02-19 | 64.51 | 105.94 | -3.03 | GIB ahead |
| 2025-02-18 | 65.27 | 107.24 | -3.10 | GIB ahead |
| 2025-02-14 | 64.47 | 107.51 | -3.32 | GIB ahead |
| 2025-02-13 | 64.55 | 109.40 | -3.58 | GIB ahead |
| 2025-02-12 | 66.74 | 107.81 | -3.16 | GIB ahead |
| 2025-02-11 | 68.13 | 107.93 | -3.01 | GIB ahead |
| 2025-02-10 | 70.15 | 107.91 | -2.74 | GIB ahead |
| 2025-02-07 | 70.06 | 106.36 | -2.64 | GIB ahead |
| 2025-02-06 | 70.73 | 106.50 | -2.59 | GIB ahead |
| 2025-02-05 | 70.83 | 107.38 | -2.70 | GIB ahead |
| 2025-02-04 | 72.26 | 105.53 | -2.30 | GIB ahead |
| 2025-02-03 | 70.86 | 105.58 | -2.56 | GIB ahead |
| 2025-01-31 | 70.64 | 105.28 | -2.61 | GIB ahead |
| 2025-01-30 | 70.60 | 106.34 | -2.78 | GIB ahead |
| 2025-01-29 | 69.58 | 102.35 | -2.54 | GIB ahead |
| 2025-01-28 | 70.59 | 102.27 | -2.37 | GIB ahead |
| 2025-01-27 | 74.13 | 101.19 | -1.66 | GIB ahead |
| 2025-01-24 | 73.07 | 100.05 | -1.70 | GIB ahead |
| 2025-01-23 | 74.58 | 99.73 | -1.41 | GIB ahead |
| 2025-01-22 | 78.34 | 99.52 | -0.79 | GIB ahead |
| 2025-01-21 | 78.00 | 98.72 | -0.74 | GIB ahead |
| 2025-01-17 | 74.50 | 96.94 | -1.06 | GIB ahead |
| 2025-01-16 | 74.64 | 97.18 | -1.06 | GIB ahead |
| 2025-01-15 | 74.51 | 96.85 | -1.04 | GIB ahead |
| 2025-01-14 | 74.55 | 96.10 | -0.93 | GIB ahead |
| 2025-01-13 | 73.99 | 96.39 | -1.05 | GIB ahead |
| 2025-01-10 | 72.54 | 96.26 | -1.27 | GIB ahead |
| 2025-01-08 | 71.23 | 97.51 | -1.63 | GIB ahead |
| 2025-01-07 | 70.77 | 96.74 | -1.62 | GIB ahead |
| 2025-01-06 | 71.59 | 97.50 | -1.58 | GIB ahead |
| 2025-01-03 | 72.24 | 98.08 | -1.54 | GIB ahead |
| 2025-01-02 | 70.16 | 97.56 | -1.83 | GIB ahead |
| 2024-12-31 | 70.47 | 97.69 | -1.80 | GIB ahead |
| 2024-12-30 | 70.29 | 97.67 | -1.83 | GIB ahead |
| 2024-12-27 | 70.99 | 98.18 | -1.77 | GIB ahead |
| 2024-12-26 | 71.41 | 98.60 | -1.76 | GIB ahead |
| 2024-12-24 | 71.02 | 98.58 | -1.82 | GIB ahead |
| 2024-12-23 | 71.79 | 97.88 | -1.60 | GIB ahead |
| 2024-12-20 | 71.84 | 97.79 | -1.58 | GIB ahead |
| 2024-12-19 | 70.45 | 97.42 | -1.76 | GIB ahead |
| 2024-12-18 | 73.03 | 95.61 | -1.11 | GIB ahead |
| 2024-12-17 | 74.36 | 98.13 | -1.20 | GIB ahead |
| 2024-12-16 | 74.23 | 98.48 | -1.25 | GIB ahead |
| 2024-12-13 | 73.63 | 100.63 | -1.60 | GIB ahead |
| 2024-12-12 | 74.25 | 100.36 | -1.47 | GIB ahead |
| 2024-12-11 | 73.92 | 102.47 | -1.77 | GIB ahead |
| 2024-12-10 | 77.64 | 102.00 | -1.14 | GIB ahead |
| 2024-12-09 | 77.10 | 101.64 | -1.18 | GIB ahead |
| 2024-12-06 | 79.81 | 100.76 | -0.68 | GIB ahead |
| 2024-12-05 | 78.14 | 101.32 | -0.98 | GIB ahead |
| 2024-12-04 | 79.11 | 101.00 | -0.80 | GIB ahead |
| 2024-12-03 | 79.97 | 100.14 | -0.58 | GIB ahead |
| 2024-12-02 | 81.44 | 100.56 | -0.41 | near the usual relationship |
| 2024-11-29 | 81.14 | 100.46 | -0.44 | near the usual relationship |
| 2024-11-27 | 80.69 | 100.61 | -0.51 | GIB ahead |
| 2024-11-26 | 81.39 | 99.83 | -0.32 | near the usual relationship |
| 2024-11-25 | 80.75 | 100.62 | -0.50 | GIB ahead |
| 2024-11-22 | 81.71 | 99.72 | -0.26 | near the usual relationship |
| 2024-11-21 | 82.07 | 100.05 | -0.25 | near the usual relationship |
| 2024-11-20 | 78.96 | 98.18 | -0.47 | near the usual relationship |
| 2024-11-19 | 75.52 | 98.00 | -0.95 | GIB ahead |
| 2024-11-18 | 76.96 | 97.91 | -0.72 | GIB ahead |
| 2024-11-15 | 81.80 | 95.96 | +0.20 | near the usual relationship |
| 2024-11-14 | 84.64 | 95.68 | +0.62 | BAH ahead |
| 2024-11-13 | 94.18 | 100.20 | +1.32 | BAH ahead |
| 2024-11-12 | 99.36 | 100.21 | +1.95 | BAH ahead |
| 2024-11-11 | 100.43 | 99.95 | +2.13 | BAH ahead |
| 2024-11-08 | 100.48 | 99.32 | +2.24 | BAH ahead |
| 2024-11-07 | 96.27 | 100.55 | +1.61 | BAH ahead |
| 2024-11-06 | 98.54 | 100.52 | +1.91 | BAH ahead |
| 2024-11-05 | 101.46 | 100.79 | +2.24 | BAH ahead |
| 2024-11-04 | 100.00 | 100.00 | +2.19 | BAH ahead |
One-day company-specific moves (4+ standard deviations, which block ideas for 10 sessions): Nov 18, 2024 (BAH -5.9%, GIB +2.0%); May 23, 2025 (BAH -16.5%, GIB -0.3%); Apr 29, 2026 (BAH +0.3%, GIB -10.8%). Upcoming earnings: GIB Nov 11, 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 Nov 3, 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
BAH and GIB at a glance
BAH Booz Allen Hamilton Holding Corporation
- Listing
- NYSE · SEC CIK 1443646
- Industry
- Professional Services · SIC 8742 Services-Management Consulting Services
- Market value
- $10.3B
- Price history
- 2,516 daily closes, Nov 3, 2016 to Nov 6, 2026
GIB CGI Inc.
- Listing
- NYSE · SEC CIK 1061574
- Industry
- Professional Services · SIC 8742 Services-Management Consulting Services
- Market value
- $18.8B
- Price history
- 2,516 daily closes, Nov 3, 2016 to Nov 6, 2026
Daily prices: Nasdaq.com. Filings and industry codes: SEC EDGAR. Earnings dates: Nasdaq earnings calendar.
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.
