Principal Financial Group Inc vs Unum Group
WatchlistPFG / UNMPrices through Oct 22, 2026
Why these are rivals: #2 and #3 by market value ($23B vs $15B) in Nasdaq's "Accident &Health Insurance" industry; SEC SIC 6321 / 6321 (same major group); #2 and #3 by market value ($23B vs $15B) with SEC SIC 6321 (Accident & Health Insurance).
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: 0.45 (needs >= 0.60)
Business leadership
PFG is the larger business
Annual revenue reported to the SEC. Scale, not market share.
| Year | PFG | UNM | Larger |
|---|---|---|---|
| 2025 | $15.6B | $13.1B | PFG |
| 2024 | $16.1B | $12.9B | PFG |
| 2023 | $13.7B | $12.4B | PFG |
| 2022 | $17.5B | $12.0B | PFG |
| 2021 | $14.4B | $12.0B | PFG |
| 2020 | $14.7B | $13.2B | PFG |
PFG led in every year with figures for both. Market value: PFG $22.9B, UNM $14.5B.
Stock leadership
UNM is ahead now
Measured against the pair's own last 252 trading days.
UNM leads PFG by 0.50 standard deviations: +2.7% over its usual price ratio. 1 lead switch in the last year.
| Price change | 3 mo | 6 mo | 12 mo |
|---|---|---|---|
| PFG | +0.6% | +13.5% | +38.7% |
| UNM | +8.7% | +20.6% | +22.4% |
Relationship
Not a measured twin today
Only these tests can make a pair tradable on paper.
- Pass
- Aligned sessions: 2521 (needs >= 254)
- Fail
- Co-movement: daily return correlation, 252 sessions: 0.45 (needs >= 0.60)
- Pass
- Mean reversion: ADF t-statistic of the spread: -3.24 (needs <= -2.873 (5% critical value))
- Pass
- Speed: half-life of the spread, sessions: 12.45 (needs <= 63)
- Data
- Both stocks current
The twins over two years
Prices side by side, and the gap between them
PFG Principal Financial Group Inc UNM Unum GroupPrice 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: PFG relative to UNM, against the 252 sessions before each day. Above 0: PFG ahead; below 0: UNM ahead. Lines at +/-2 (idea) and +/-4 (stop).
Data table (504 sessions)
| Date | PFG index | UNM index | z | Ahead |
|---|---|---|---|---|
| 2026-10-22 | 121.72 | 147.36 | -0.50 | UNM ahead |
| 2026-10-21 | 119.88 | 147.30 | -0.76 | UNM ahead |
| 2026-10-20 | 119.32 | 146.86 | -0.77 | UNM ahead |
| 2026-10-19 | 118.13 | 144.25 | -0.61 | UNM ahead |
| 2026-10-16 | 120.29 | 144.97 | -0.37 | near the usual relationship |
| 2026-10-15 | 120.45 | 145.25 | -0.37 | near the usual relationship |
| 2026-10-14 | 118.57 | 143.76 | -0.45 | near the usual relationship |
| 2026-10-13 | 118.99 | 144.69 | -0.49 | near the usual relationship |
| 2026-10-12 | 119.21 | 145.41 | -0.53 | UNM ahead |
| 2026-10-09 | 118.55 | 144.09 | -0.46 | near the usual relationship |
| 2026-10-08 | 121.35 | 145.61 | -0.23 | near the usual relationship |
| 2026-10-07 | 120.20 | 146.49 | -0.49 | near the usual relationship |
| 2026-10-06 | 121.27 | 144.34 | -0.08 | near the usual relationship |
| 2026-10-05 | 122.74 | 141.35 | +0.47 | near the usual relationship |
| 2026-10-02 | 123.77 | 139.22 | +0.87 | PFG ahead |
| 2026-10-01 | 124.08 | 138.45 | +1.01 | PFG ahead |
| 2026-09-30 | 123.77 | 137.90 | +1.04 | PFG ahead |
| 2026-09-29 | 125.99 | 138.70 | +1.24 | PFG ahead |
| 2026-09-28 | 126.73 | 143.23 | +0.82 | PFG ahead |
| 2026-09-25 | 126.87 | 144.75 | +0.67 | PFG ahead |
| 2026-09-24 | 126.19 | 143.21 | +0.77 | PFG ahead |
| 2026-09-23 | 125.93 | 148.48 | +0.17 | near the usual relationship |
| 2026-09-22 | 125.57 | 146.68 | +0.32 | near the usual relationship |
| 2026-09-21 | 128.75 | 147.06 | +0.68 | PFG ahead |
| 2026-09-18 | 130.08 | 149.62 | +0.57 | PFG ahead |
| 2026-09-17 | 128.17 | 150.30 | +0.28 | near the usual relationship |
| 2026-09-16 | 128.94 | 149.04 | +0.51 | PFG ahead |
| 2026-09-15 | 130.85 | 150.71 | +0.57 | PFG ahead |
| 2026-09-14 | 129.23 | 149.20 | +0.54 | PFG ahead |
| 2026-09-11 | 128.42 | 148.41 | +0.53 | PFG ahead |
| 2026-09-10 | 127.08 | 148.24 | +0.39 | near the usual relationship |
| 2026-09-09 | 126.04 | 146.29 | +0.47 | near the usual relationship |
| 2026-09-08 | 127.17 | 147.86 | +0.45 | near the usual relationship |
| 2026-09-04 | 128.99 | 150.66 | +0.39 | near the usual relationship |
| 2026-09-03 | 131.01 | 151.79 | +0.52 | PFG ahead |
| 2026-09-02 | 123.05 | 145.87 | +0.17 | near the usual relationship |
| 2026-09-01 | 120.89 | 144.12 | +0.09 | near the usual relationship |
| 2026-08-31 | 121.78 | 146.53 | -0.05 | near the usual relationship |
| 2026-08-28 | 123.16 | 146.26 | +0.15 | near the usual relationship |
| 2026-08-27 | 124.00 | 145.32 | +0.35 | near the usual relationship |
| 2026-08-26 | 124.04 | 143.84 | +0.52 | PFG ahead |
| 2026-08-25 | 123.36 | 140.98 | +0.74 | PFG ahead |
| 2026-08-24 | 123.69 | 140.66 | +0.82 | PFG ahead |
| 2026-08-21 | 122.43 | 137.96 | +0.97 | PFG ahead |
| 2026-08-20 | 122.20 | 136.67 | +1.09 | PFG ahead |
| 2026-08-19 | 123.41 | 137.76 | +1.13 | PFG ahead |
| 2026-08-18 | 125.07 | 141.10 | +0.98 | PFG ahead |
| 2026-08-17 | 124.88 | 143.84 | +0.67 | PFG ahead |
| 2026-08-14 | 126.00 | 146.70 | +0.51 | PFG ahead |
| 2026-08-13 | 127.05 | 145.71 | +0.74 | PFG ahead |
| 2026-08-12 | 125.77 | 144.28 | +0.74 | PFG ahead |
| 2026-08-11 | 124.95 | 141.23 | +0.98 | PFG ahead |
| 2026-08-10 | 125.81 | 143.65 | +0.83 | PFG ahead |
| 2026-08-07 | 125.36 | 142.35 | +0.92 | PFG ahead |
| 2026-08-06 | 127.58 | 141.17 | +1.32 | PFG ahead |
| 2026-08-05 | 126.96 | 140.02 | +1.38 | PFG ahead |
| 2026-08-04 | 127.40 | 143.65 | +1.06 | PFG ahead |
| 2026-08-03 | 127.27 | 141.64 | +1.27 | PFG ahead |
| 2026-07-31 | 125.69 | 135.35 | +1.78 | PFG ahead |
| 2026-07-30 | 125.97 | 136.39 | +1.70 | PFG ahead |
| 2026-07-29 | 125.12 | 131.45 | +2.17 | PFG ahead |
| 2026-07-28 | 126.12 | 138.21 | +1.54 | PFG ahead |
| 2026-07-27 | 123.03 | 135.84 | +1.44 | PFG ahead |
| 2026-07-24 | 120.94 | 135.52 | +1.22 | PFG ahead |
| 2026-07-23 | 118.64 | 135.88 | +0.90 | PFG ahead |
| 2026-07-22 | 119.67 | 137.99 | +0.81 | PFG ahead |
| 2026-07-21 | 121.13 | 138.92 | +0.89 | PFG ahead |
| 2026-07-20 | 123.88 | 139.66 | +1.14 | PFG ahead |
| 2026-07-17 | 125.97 | 139.97 | +1.36 | PFG ahead |
| 2026-07-16 | 125.05 | 140.79 | +1.18 | PFG ahead |
| 2026-07-15 | 124.87 | 139.89 | +1.25 | PFG ahead |
| 2026-07-14 | 124.83 | 139.06 | +1.34 | PFG ahead |
| 2026-07-13 | 125.59 | 140.54 | +1.28 | PFG ahead |
| 2026-07-10 | 124.07 | 137.54 | +1.42 | PFG ahead |
| 2026-07-09 | 123.45 | 139.01 | +1.21 | PFG ahead |
| 2026-07-08 | 122.42 | 137.91 | +1.21 | PFG ahead |
| 2026-07-07 | 124.78 | 140.21 | +1.25 | PFG ahead |
| 2026-07-06 | 124.42 | 140.69 | +1.17 | PFG ahead |
| 2026-07-02 | 122.56 | 145.14 | +0.56 | PFG ahead |
| 2026-07-01 | 120.42 | 143.67 | +0.46 | near the usual relationship |
| 2026-06-30 | 119.15 | 140.52 | +0.62 | PFG ahead |
| 2026-06-29 | 119.95 | 140.95 | +0.68 | PFG ahead |
| 2026-06-26 | 119.11 | 141.65 | +0.52 | PFG ahead |
| 2026-06-25 | 116.56 | 139.77 | +0.42 | near the usual relationship |
| 2026-06-24 | 117.95 | 139.34 | +0.62 | PFG ahead |
| 2026-06-23 | 124.21 | 143.57 | +0.91 | PFG ahead |
| 2026-06-22 | 122.96 | 142.38 | +0.89 | PFG ahead |
| 2026-06-18 | 121.13 | 141.43 | +0.79 | PFG ahead |
| 2026-06-17 | 121.84 | 144.01 | +0.64 | PFG ahead |
| 2026-06-16 | 122.89 | 145.08 | +0.66 | PFG ahead |
| 2026-06-15 | 122.25 | 144.33 | +0.67 | PFG ahead |
| 2026-06-12 | 122.83 | 145.76 | +0.61 | PFG ahead |
| 2026-06-11 | 121.26 | 144.15 | +0.60 | PFG ahead |
| 2026-06-10 | 120.73 | 142.53 | +0.68 | PFG ahead |
| 2026-06-09 | 117.91 | 138.32 | +0.77 | PFG ahead |
| 2026-06-08 | 116.11 | 136.78 | +0.72 | PFG ahead |
| 2026-06-05 | 116.32 | 136.50 | +0.77 | PFG ahead |
| 2026-06-04 | 114.43 | 133.46 | +0.85 | PFG ahead |
| 2026-06-03 | 111.86 | 131.26 | +0.78 | PFG ahead |
| 2026-06-02 | 114.21 | 132.30 | +0.94 | PFG ahead |
| 2026-06-01 | 113.75 | 131.14 | +1.00 | PFG ahead |
| 2026-05-29 | 114.55 | 130.82 | +1.11 | PFG ahead |
| 2026-05-28 | 114.22 | 129.60 | +1.20 | PFG ahead |
| 2026-05-27 | 115.60 | 131.11 | +1.21 | PFG ahead |
| 2026-05-26 | 115.75 | 132.69 | +1.10 | PFG ahead |
| 2026-05-22 | 114.80 | 132.85 | +1.00 | PFG ahead |
| 2026-05-21 | 114.88 | 132.80 | +1.02 | PFG ahead |
| 2026-05-20 | 113.65 | 131.77 | +0.99 | PFG ahead |
| 2026-05-19 | 111.81 | 129.25 | +1.03 | PFG ahead |
| 2026-05-18 | 113.20 | 130.10 | +1.11 | PFG ahead |
| 2026-05-15 | 111.13 | 128.32 | +1.06 | PFG ahead |
| 2026-05-14 | 111.40 | 127.16 | +1.20 | PFG ahead |
| 2026-05-13 | 111.01 | 126.42 | +1.23 | PFG ahead |
| 2026-05-12 | 111.47 | 127.57 | +1.19 | PFG ahead |
| 2026-05-11 | 110.76 | 128.12 | +1.08 | PFG ahead |
| 2026-05-08 | 111.10 | 127.13 | +1.21 | PFG ahead |
| 2026-05-07 | 110.58 | 126.25 | +1.24 | PFG ahead |
| 2026-05-06 | 112.26 | 126.20 | +1.42 | PFG ahead |
| 2026-05-05 | 111.51 | 127.05 | +1.28 | PFG ahead |
| 2026-05-04 | 109.95 | 126.12 | +1.22 | PFG ahead |
| 2026-05-01 | 111.75 | 127.07 | +1.32 | PFG ahead |
| 2026-04-30 | 111.55 | 126.34 | +1.38 | PFG ahead |
| 2026-04-29 | 110.14 | 127.77 | +1.12 | PFG ahead |
| 2026-04-28 | 110.61 | 122.32 | +1.65 | PFG ahead |
| 2026-04-27 | 110.26 | 121.24 | +1.73 | PFG ahead |
| 2026-04-24 | 109.82 | 121.79 | +1.65 | PFG ahead |
| 2026-04-23 | 107.23 | 122.23 | +1.36 | PFG ahead |
| 2026-04-22 | 107.71 | 121.55 | +1.48 | PFG ahead |
| 2026-04-21 | 105.83 | 123.84 | +1.09 | PFG ahead |
| 2026-04-20 | 106.33 | 124.54 | +1.09 | PFG ahead |
| 2026-04-17 | 106.31 | 125.17 | +1.04 | PFG ahead |
| 2026-04-16 | 103.89 | 124.14 | +0.89 | PFG ahead |
| 2026-04-15 | 104.67 | 124.02 | +0.99 | PFG ahead |
| 2026-04-14 | 104.07 | 121.86 | +1.12 | PFG ahead |
| 2026-04-13 | 103.42 | 121.35 | +1.11 | PFG ahead |
| 2026-04-10 | 101.48 | 120.51 | +0.99 | PFG ahead |
| 2026-04-09 | 102.06 | 120.45 | +1.06 | PFG ahead |
| 2026-04-08 | 104.13 | 121.90 | +1.16 | PFG ahead |
| 2026-04-07 | 100.66 | 119.02 | +1.06 | PFG ahead |
| 2026-04-06 | 100.72 | 119.21 | +1.06 | PFG ahead |
| 2026-04-02 | 99.60 | 116.58 | +1.19 | PFG ahead |
| 2026-04-01 | 99.58 | 116.10 | +1.24 | PFG ahead |
| 2026-03-31 | 99.61 | 114.79 | +1.38 | PFG ahead |
| 2026-03-30 | 97.53 | 114.73 | +1.16 | PFG ahead |
| 2026-03-27 | 96.19 | 114.59 | +1.03 | PFG ahead |
| 2026-03-26 | 98.32 | 117.02 | +1.05 | PFG ahead |
| 2026-03-25 | 98.08 | 117.10 | +1.03 | PFG ahead |
| 2026-03-24 | 96.97 | 116.06 | +1.01 | PFG ahead |
| 2026-03-23 | 95.68 | 115.14 | +0.95 | PFG ahead |
| 2026-03-20 | 94.04 | 113.99 | +0.88 | PFG ahead |
| 2026-03-19 | 94.96 | 114.67 | +0.93 | PFG ahead |
| 2026-03-18 | 95.82 | 116.69 | +0.84 | PFG ahead |
| 2026-03-17 | 96.98 | 118.19 | +0.84 | PFG ahead |
| 2026-03-16 | 95.57 | 114.49 | +1.04 | PFG ahead |
| 2026-03-13 | 94.88 | 113.42 | +1.07 | PFG ahead |
| 2026-03-12 | 95.28 | 114.26 | +1.04 | PFG ahead |
| 2026-03-11 | 97.50 | 113.97 | +1.33 | PFG ahead |
| 2026-03-10 | 99.19 | 114.40 | +1.50 | PFG ahead |
| 2026-03-09 | 100.17 | 114.65 | +1.59 | PFG ahead |
| 2026-03-06 | 101.99 | 115.56 | +1.72 | PFG ahead |
| 2026-03-05 | 103.36 | 116.77 | +1.77 | PFG ahead |
| 2026-03-04 | 103.36 | 115.36 | +1.93 | PFG ahead |
| 2026-03-03 | 103.55 | 111.07 | +2.42 | PFG ahead |
| 2026-03-02 | 105.94 | 113.34 | +2.49 | PFG ahead |
| 2026-02-27 | 105.48 | 112.75 | +2.54 | PFG ahead |
| 2026-02-26 | 107.78 | 116.03 | +2.50 | PFG ahead |
| 2026-02-25 | 104.67 | 113.93 | +2.40 | PFG ahead |
| 2026-02-24 | 104.85 | 112.61 | +2.60 | PFG ahead |
| 2026-02-23 | 102.47 | 111.35 | +2.48 | PFG ahead |
| 2026-02-20 | 105.86 | 115.77 | +2.44 | PFG ahead |
| 2026-02-19 | 101.87 | 115.48 | +2.00 | PFG ahead |
| 2026-02-18 | 102.20 | 115.15 | +2.10 | PFG ahead |
| 2026-02-17 | 101.68 | 114.60 | +2.11 | PFG ahead |
| 2026-02-13 | 99.92 | 112.61 | +2.14 | PFG ahead |
| 2026-02-12 | 100.06 | 111.32 | +2.33 | PFG ahead |
| 2026-02-11 | 102.60 | 112.24 | +2.59 | PFG ahead |
| 2026-02-10 | 103.52 | 112.76 | +2.69 | PFG ahead |
| 2026-02-09 | 106.05 | 112.70 | +3.09 | PFG ahead |
| 2026-02-06 | 107.61 | 117.20 | +2.81 | PFG ahead |
| 2026-02-05 | 105.57 | 118.92 | +2.38 | PFG ahead |
| 2026-02-04 | 106.57 | 120.98 | +2.31 | PFG ahead |
| 2026-02-03 | 105.34 | 120.34 | +2.25 | PFG ahead |
| 2026-02-02 | 106.12 | 120.20 | +2.41 | PFG ahead |
| 2026-01-30 | 104.71 | 119.41 | +2.34 | PFG ahead |
| 2026-01-29 | 104.75 | 119.92 | +2.32 | PFG ahead |
| 2026-01-28 | 103.97 | 119.92 | +2.24 | PFG ahead |
| 2026-01-27 | 101.96 | 119.24 | +2.05 | PFG ahead |
| 2026-01-26 | 102.81 | 120.07 | +2.10 | PFG ahead |
| 2026-01-23 | 100.83 | 119.62 | +1.88 | PFG ahead |
| 2026-01-22 | 101.87 | 120.94 | +1.89 | PFG ahead |
| 2026-01-21 | 100.70 | 120.56 | +1.77 | PFG ahead |
| 2026-01-20 | 97.88 | 118.64 | +1.59 | PFG ahead |
| 2026-01-16 | 97.81 | 119.60 | +1.47 | PFG ahead |
| 2026-01-15 | 100.57 | 121.64 | +1.65 | PFG ahead |
| 2026-01-14 | 100.83 | 125.46 | +1.22 | PFG ahead |
| 2026-01-13 | 98.41 | 124.69 | +0.94 | PFG ahead |
| 2026-01-12 | 99.71 | 125.84 | +1.01 | PFG ahead |
| 2026-01-09 | 99.81 | 126.20 | +0.98 | PFG ahead |
| 2026-01-08 | 101.40 | 126.33 | +1.22 | PFG ahead |
| 2026-01-07 | 100.46 | 123.25 | +1.48 | PFG ahead |
| 2026-01-06 | 101.48 | 123.64 | +1.60 | PFG ahead |
| 2026-01-05 | 100.06 | 123.09 | +1.46 | PFG ahead |
| 2026-01-02 | 98.85 | 121.39 | +1.50 | PFG ahead |
| 2025-12-31 | 97.51 | 121.82 | +1.23 | PFG ahead |
| 2025-12-30 | 98.28 | 123.11 | +1.19 | PFG ahead |
| 2025-12-29 | 98.43 | 123.50 | +1.18 | PFG ahead |
| 2025-12-26 | 98.81 | 123.92 | +1.19 | PFG ahead |
| 2025-12-24 | 99.04 | 124.25 | +1.19 | PFG ahead |
| 2025-12-23 | 98.96 | 124.79 | +1.12 | PFG ahead |
| 2025-12-22 | 98.65 | 123.69 | +1.22 | PFG ahead |
| 2025-12-19 | 98.33 | 124.55 | +1.05 | PFG ahead |
| 2025-12-18 | 98.76 | 124.90 | +1.09 | PFG ahead |
| 2025-12-17 | 98.80 | 122.46 | +1.43 | PFG ahead |
| 2025-12-16 | 98.98 | 121.85 | +1.55 | PFG ahead |
| 2025-12-15 | 100.19 | 121.20 | +1.85 | PFG ahead |
| 2025-12-12 | 99.43 | 121.22 | +1.74 | PFG ahead |
| 2025-12-11 | 101.19 | 120.25 | +2.19 | PFG ahead |
| 2025-12-10 | 99.75 | 116.72 | +2.47 | PFG ahead |
| 2025-12-09 | 97.51 | 115.34 | +2.32 | PFG ahead |
| 2025-12-08 | 96.04 | 114.46 | +2.21 | PFG ahead |
| 2025-12-05 | 96.75 | 116.77 | +2.01 | PFG ahead |
| 2025-12-04 | 94.99 | 115.28 | +1.92 | PFG ahead |
| 2025-12-03 | 95.00 | 115.61 | +1.88 | PFG ahead |
| 2025-12-02 | 93.21 | 116.79 | +1.37 | PFG ahead |
| 2025-12-01 | 93.36 | 118.20 | +1.19 | PFG ahead |
| 2025-11-28 | 93.77 | 119.41 | +1.08 | PFG ahead |
| 2025-11-26 | 93.52 | 120.06 | +0.94 | PFG ahead |
| 2025-11-25 | 93.62 | 120.32 | +0.92 | PFG ahead |
| 2025-11-24 | 93.48 | 118.92 | +1.09 | PFG ahead |
| 2025-11-21 | 93.18 | 118.92 | +1.02 | PFG ahead |
| 2025-11-20 | 91.05 | 119.92 | +0.47 | near the usual relationship |
| 2025-11-19 | 91.87 | 120.25 | +0.57 | PFG ahead |
| 2025-11-18 | 90.86 | 120.59 | +0.32 | near the usual relationship |
| 2025-11-17 | 89.55 | 119.33 | +0.24 | near the usual relationship |
| 2025-11-14 | 93.38 | 120.98 | +0.69 | PFG ahead |
| 2025-11-13 | 93.54 | 121.03 | +0.70 | PFG ahead |
| 2025-11-12 | 94.25 | 121.57 | +0.73 | PFG ahead |
| 2025-11-11 | 93.28 | 119.98 | +0.76 | PFG ahead |
| 2025-11-10 | 92.39 | 121.55 | +0.39 | near the usual relationship |
| 2025-11-07 | 91.60 | 122.84 | +0.08 | near the usual relationship |
| 2025-11-06 | 91.13 | 120.69 | +0.26 | near the usual relationship |
| 2025-11-05 | 89.72 | 120.67 | +0.01 | near the usual relationship |
| 2025-11-04 | 90.71 | 122.92 | -0.11 | near the usual relationship |
| 2025-11-03 | 91.78 | 114.63 | +1.06 | PFG ahead |
| 2025-10-31 | 92.90 | 115.40 | +1.10 | PFG ahead |
| 2025-10-30 | 91.47 | 115.53 | +0.83 | PFG ahead |
| 2025-10-29 | 91.12 | 117.67 | +0.51 | PFG ahead |
| 2025-10-28 | 90.87 | 117.38 | +0.47 | near the usual relationship |
| 2025-10-27 | 87.96 | 119.14 | -0.16 | near the usual relationship |
| 2025-10-24 | 88.02 | 119.59 | -0.21 | near the usual relationship |
| 2025-10-23 | 87.82 | 120.10 | -0.30 | near the usual relationship |
| 2025-10-22 | 87.49 | 119.79 | -0.32 | near the usual relationship |
| 2025-10-21 | 87.76 | 120.37 | -0.34 | near the usual relationship |
| 2025-10-20 | 87.30 | 118.99 | -0.28 | near the usual relationship |
| 2025-10-17 | 86.92 | 118.61 | -0.30 | near the usual relationship |
| 2025-10-16 | 86.66 | 115.83 | -0.08 | near the usual relationship |
| 2025-10-15 | 89.43 | 119.35 | -0.08 | near the usual relationship |
| 2025-10-14 | 89.86 | 120.42 | -0.13 | near the usual relationship |
| 2025-10-13 | 88.07 | 118.61 | -0.19 | near the usual relationship |
| 2025-10-10 | 87.80 | 119.22 | -0.29 | near the usual relationship |
| 2025-10-09 | 91.41 | 120.67 | -0.01 | near the usual relationship |
| 2025-10-08 | 90.39 | 123.58 | -0.37 | near the usual relationship |
| 2025-10-07 | 92.38 | 123.01 | -0.12 | near the usual relationship |
| 2025-10-06 | 93.06 | 123.61 | -0.10 | near the usual relationship |
| 2025-10-03 | 93.12 | 124.83 | -0.20 | near the usual relationship |
| 2025-10-02 | 93.15 | 123.55 | -0.11 | near the usual relationship |
| 2025-10-01 | 91.80 | 123.01 | -0.21 | near the usual relationship |
| 2025-09-30 | 91.65 | 122.26 | -0.18 | near the usual relationship |
| 2025-09-29 | 91.17 | 121.69 | -0.19 | near the usual relationship |
| 2025-09-26 | 91.33 | 123.01 | -0.28 | near the usual relationship |
| 2025-09-25 | 90.10 | 120.56 | -0.23 | near the usual relationship |
| 2025-09-24 | 90.47 | 120.76 | -0.22 | near the usual relationship |
| 2025-09-23 | 91.09 | 120.56 | -0.16 | near the usual relationship |
| 2025-09-22 | 90.88 | 119.30 | -0.10 | near the usual relationship |
| 2025-09-19 | 90.33 | 119.79 | -0.19 | near the usual relationship |
| 2025-09-18 | 90.40 | 119.85 | -0.19 | near the usual relationship |
| 2025-09-17 | 89.39 | 118.04 | -0.17 | near the usual relationship |
| 2025-09-16 | 88.54 | 116.65 | -0.16 | near the usual relationship |
| 2025-09-15 | 91.70 | 117.73 | +0.03 | near the usual relationship |
| 2025-09-12 | 91.42 | 118.26 | -0.03 | near the usual relationship |
| 2025-09-11 | 90.74 | 118.30 | -0.10 | near the usual relationship |
| 2025-09-10 | 88.51 | 115.88 | -0.14 | near the usual relationship |
| 2025-09-09 | 88.51 | 115.17 | -0.10 | near the usual relationship |
| 2025-09-08 | 88.12 | 115.83 | -0.19 | near the usual relationship |
| 2025-09-05 | 88.41 | 115.94 | -0.18 | near the usual relationship |
| 2025-09-04 | 89.87 | 114.85 | +0.01 | near the usual relationship |
| 2025-09-03 | 88.64 | 114.40 | -0.07 | near the usual relationship |
| 2025-09-02 | 88.37 | 110.08 | +0.18 | near the usual relationship |
| 2025-08-29 | 89.00 | 109.81 | +0.24 | near the usual relationship |
| 2025-08-28 | 88.68 | 108.96 | +0.26 | near the usual relationship |
| 2025-08-27 | 89.37 | 109.31 | +0.28 | near the usual relationship |
| 2025-08-26 | 89.04 | 109.20 | +0.26 | near the usual relationship |
| 2025-08-25 | 88.75 | 108.71 | +0.26 | near the usual relationship |
| 2025-08-22 | 89.23 | 109.90 | +0.21 | near the usual relationship |
| 2025-08-21 | 86.97 | 108.99 | +0.08 | near the usual relationship |
| 2025-08-20 | 87.02 | 109.16 | +0.07 | near the usual relationship |
| 2025-08-19 | 86.89 | 108.60 | +0.09 | near the usual relationship |
| 2025-08-18 | 85.89 | 107.80 | +0.06 | near the usual relationship |
| 2025-08-15 | 85.83 | 108.17 | +0.02 | near the usual relationship |
| 2025-08-14 | 86.33 | 111.43 | -0.15 | near the usual relationship |
| 2025-08-13 | 86.60 | 111.62 | -0.14 | near the usual relationship |
| 2025-08-12 | 85.39 | 110.56 | -0.18 | near the usual relationship |
| 2025-08-11 | 84.55 | 109.07 | -0.16 | near the usual relationship |
| 2025-08-08 | 84.67 | 109.07 | -0.16 | near the usual relationship |
| 2025-08-07 | 83.57 | 107.75 | -0.17 | near the usual relationship |
| 2025-08-06 | 84.91 | 110.80 | -0.25 | near the usual relationship |
| 2025-08-05 | 84.15 | 110.04 | -0.27 | near the usual relationship |
| 2025-08-04 | 83.88 | 109.95 | -0.29 | near the usual relationship |
| 2025-08-01 | 83.50 | 109.60 | -0.31 | near the usual relationship |
| 2025-07-31 | 86.04 | 112.87 | -0.31 | near the usual relationship |
| 2025-07-30 | 84.67 | 111.77 | -0.36 | near the usual relationship |
| 2025-07-29 | 88.65 | 127.27 | -0.91 | UNM ahead |
| 2025-07-28 | 88.87 | 125.87 | -0.82 | UNM ahead |
| 2025-07-25 | 89.60 | 126.94 | -0.83 | UNM ahead |
| 2025-07-24 | 88.80 | 125.76 | -0.84 | UNM ahead |
| 2025-07-23 | 89.41 | 126.91 | -0.86 | UNM ahead |
| 2025-07-22 | 88.66 | 126.50 | -0.89 | UNM ahead |
| 2025-07-21 | 87.04 | 125.39 | -0.96 | UNM ahead |
| 2025-07-18 | 89.61 | 127.51 | -0.89 | UNM ahead |
| 2025-07-17 | 89.51 | 127.33 | -0.89 | UNM ahead |
| 2025-07-16 | 88.24 | 126.42 | -0.94 | UNM ahead |
| 2025-07-15 | 87.75 | 124.13 | -0.87 | UNM ahead |
| 2025-07-14 | 89.49 | 127.95 | -0.94 | UNM ahead |
| 2025-07-11 | 88.85 | 125.81 | -0.89 | UNM ahead |
| 2025-07-10 | 90.21 | 126.49 | -0.84 | UNM ahead |
| 2025-07-09 | 89.39 | 124.60 | -0.81 | UNM ahead |
| 2025-07-08 | 90.07 | 127.22 | -0.89 | UNM ahead |
| 2025-07-07 | 88.65 | 128.47 | -1.05 | UNM ahead |
| 2025-07-03 | 89.54 | 129.08 | -1.03 | UNM ahead |
| 2025-07-02 | 89.00 | 127.70 | -1.01 | UNM ahead |
| 2025-07-01 | 89.35 | 128.98 | -1.05 | UNM ahead |
| 2025-06-30 | 87.81 | 126.94 | -1.06 | UNM ahead |
| 2025-06-27 | 87.54 | 126.47 | -1.07 | UNM ahead |
| 2025-06-26 | 86.67 | 125.28 | -1.08 | UNM ahead |
| 2025-06-25 | 85.19 | 122.65 | -1.06 | UNM ahead |
| 2025-06-24 | 86.15 | 124.85 | -1.11 | UNM ahead |
| 2025-06-23 | 85.49 | 125.86 | -1.21 | UNM ahead |
| 2025-06-20 | 84.69 | 124.61 | -1.21 | UNM ahead |
| 2025-06-18 | 83.98 | 123.28 | -1.21 | UNM ahead |
| 2025-06-17 | 83.79 | 122.37 | -1.19 | UNM ahead |
| 2025-06-16 | 84.82 | 123.95 | -1.20 | UNM ahead |
| 2025-06-13 | 83.90 | 122.90 | -1.22 | UNM ahead |
| 2025-06-12 | 85.14 | 124.57 | -1.22 | UNM ahead |
| 2025-06-11 | 84.56 | 123.64 | -1.23 | UNM ahead |
| 2025-06-10 | 84.86 | 123.86 | -1.23 | UNM ahead |
| 2025-06-09 | 84.94 | 126.45 | -1.35 | UNM ahead |
| 2025-06-06 | 85.09 | 128.07 | -1.42 | UNM ahead |
| 2025-06-05 | 83.95 | 125.76 | -1.41 | UNM ahead |
| 2025-06-04 | 84.39 | 126.82 | -1.44 | UNM ahead |
| 2025-06-03 | 85.50 | 129.11 | -1.48 | UNM ahead |
| 2025-06-02 | 85.09 | 128.76 | -1.50 | UNM ahead |
| 2025-05-30 | 86.10 | 128.43 | -1.43 | UNM ahead |
| 2025-05-29 | 86.83 | 127.92 | -1.38 | UNM ahead |
| 2025-05-28 | 85.86 | 126.67 | -1.40 | UNM ahead |
| 2025-05-27 | 87.21 | 128.48 | -1.40 | UNM ahead |
| 2025-05-23 | 85.13 | 125.54 | -1.42 | UNM ahead |
| 2025-05-22 | 85.51 | 125.17 | -1.38 | UNM ahead |
| 2025-05-21 | 85.52 | 126.22 | -1.44 | UNM ahead |
| 2025-05-20 | 89.02 | 128.91 | -1.34 | UNM ahead |
| 2025-05-19 | 89.87 | 129.14 | -1.31 | UNM ahead |
| 2025-05-16 | 90.15 | 129.13 | -1.30 | UNM ahead |
| 2025-05-15 | 90.01 | 126.96 | -1.23 | UNM ahead |
| 2025-05-14 | 89.59 | 125.29 | -1.19 | UNM ahead |
| 2025-05-13 | 90.32 | 127.19 | -1.24 | UNM ahead |
| 2025-05-12 | 90.32 | 127.10 | -1.24 | UNM ahead |
| 2025-05-09 | 87.22 | 126.49 | -1.42 | UNM ahead |
| 2025-05-08 | 87.15 | 126.14 | -1.42 | UNM ahead |
| 2025-05-07 | 85.73 | 126.55 | -1.55 | UNM ahead |
| 2025-05-06 | 84.39 | 124.94 | -1.58 | UNM ahead |
| 2025-05-05 | 84.63 | 123.64 | -1.52 | UNM ahead |
| 2025-05-02 | 84.93 | 125.13 | -1.58 | UNM ahead |
| 2025-05-01 | 81.88 | 121.71 | -1.65 | UNM ahead |
| 2025-04-30 | 81.97 | 122.07 | -1.67 | UNM ahead |
| 2025-04-29 | 82.46 | 124.55 | -1.77 | UNM ahead |
| 2025-04-28 | 81.66 | 124.25 | -1.83 | UNM ahead |
| 2025-04-25 | 81.21 | 123.34 | -1.84 | UNM ahead |
| 2025-04-24 | 82.91 | 124.71 | -1.80 | UNM ahead |
| 2025-04-23 | 81.85 | 123.70 | -1.85 | UNM ahead |
| 2025-04-22 | 80.53 | 121.52 | -1.86 | UNM ahead |
| 2025-04-21 | 77.67 | 116.58 | -1.85 | UNM ahead |
| 2025-04-17 | 79.75 | 119.25 | -1.85 | UNM ahead |
| 2025-04-16 | 79.20 | 118.96 | -1.89 | UNM ahead |
| 2025-04-15 | 80.80 | 121.58 | -1.93 | UNM ahead |
| 2025-04-14 | 81.17 | 120.89 | -1.88 | UNM ahead |
| 2025-04-11 | 80.27 | 118.30 | -1.84 | UNM ahead |
| 2025-04-10 | 79.55 | 116.03 | -1.80 | UNM ahead |
| 2025-04-09 | 85.42 | 120.86 | -1.63 | UNM ahead |
| 2025-04-08 | 76.90 | 110.78 | -1.75 | UNM ahead |
| 2025-04-07 | 79.21 | 111.21 | -1.61 | UNM ahead |
| 2025-04-04 | 80.63 | 111.87 | -1.56 | UNM ahead |
| 2025-04-03 | 87.69 | 124.55 | -1.72 | UNM ahead |
| 2025-04-02 | 95.28 | 130.32 | -1.50 | UNM ahead |
| 2025-04-01 | 94.13 | 128.89 | -1.52 | UNM ahead |
| 2025-03-31 | 93.27 | 128.04 | -1.55 | UNM ahead |
| 2025-03-28 | 91.82 | 125.75 | -1.55 | UNM ahead |
| 2025-03-27 | 94.05 | 128.72 | -1.56 | UNM ahead |
| 2025-03-26 | 94.63 | 129.41 | -1.57 | UNM ahead |
| 2025-03-25 | 94.70 | 130.52 | -1.63 | UNM ahead |
| 2025-03-24 | 94.24 | 131.00 | -1.70 | UNM ahead |
| 2025-03-21 | 92.04 | 127.85 | -1.71 | UNM ahead |
| 2025-03-20 | 93.00 | 127.38 | -1.64 | UNM ahead |
| 2025-03-19 | 93.31 | 127.93 | -1.66 | UNM ahead |
| 2025-03-18 | 92.02 | 127.13 | -1.73 | UNM ahead |
| 2025-03-17 | 92.73 | 128.28 | -1.76 | UNM ahead |
| 2025-03-14 | 91.51 | 123.91 | -1.64 | UNM ahead |
| 2025-03-13 | 89.03 | 121.27 | -1.69 | UNM ahead |
| 2025-03-12 | 90.68 | 122.01 | -1.63 | UNM ahead |
| 2025-03-11 | 91.62 | 123.56 | -1.66 | UNM ahead |
| 2025-03-10 | 92.50 | 121.55 | -1.50 | UNM ahead |
| 2025-03-07 | 94.64 | 124.24 | -1.51 | UNM ahead |
| 2025-03-06 | 95.78 | 124.90 | -1.48 | UNM ahead |
| 2025-03-05 | 96.24 | 127.73 | -1.61 | UNM ahead |
| 2025-03-04 | 94.65 | 122.46 | -1.46 | UNM ahead |
| 2025-03-03 | 97.99 | 127.93 | -1.53 | UNM ahead |
| 2025-02-28 | 98.43 | 129.35 | -1.59 | UNM ahead |
| 2025-02-27 | 96.76 | 128.45 | -1.67 | UNM ahead |
| 2025-02-26 | 94.96 | 121.47 | -1.44 | UNM ahead |
| 2025-02-25 | 94.36 | 120.04 | -1.42 | UNM ahead |
| 2025-02-24 | 94.09 | 117.51 | -1.30 | UNM ahead |
| 2025-02-21 | 93.28 | 116.41 | -1.31 | UNM ahead |
| 2025-02-20 | 95.69 | 117.56 | -1.22 | UNM ahead |
| 2025-02-19 | 95.28 | 117.79 | -1.27 | UNM ahead |
| 2025-02-18 | 95.73 | 116.35 | -1.16 | UNM ahead |
| 2025-02-14 | 94.68 | 116.88 | -1.28 | UNM ahead |
| 2025-02-13 | 96.12 | 118.58 | -1.28 | UNM ahead |
| 2025-02-12 | 93.90 | 118.11 | -1.43 | UNM ahead |
| 2025-02-11 | 94.46 | 118.14 | -1.40 | UNM ahead |
| 2025-02-10 | 93.28 | 120.32 | -1.62 | UNM ahead |
| 2025-02-07 | 91.01 | 120.95 | -1.84 | UNM ahead |
| 2025-02-06 | 88.44 | 120.51 | -2.03 | UNM ahead |
| 2025-02-05 | 89.07 | 122.16 | -2.10 | UNM ahead |
| 2025-02-04 | 89.20 | 119.38 | -1.96 | UNM ahead |
| 2025-02-03 | 89.51 | 119.82 | -1.98 | UNM ahead |
| 2025-01-31 | 91.15 | 119.85 | -1.88 | UNM ahead |
| 2025-01-30 | 92.32 | 121.05 | -1.88 | UNM ahead |
| 2025-01-29 | 92.17 | 121.50 | -1.94 | UNM ahead |
| 2025-01-28 | 91.63 | 119.40 | -1.88 | UNM ahead |
| 2025-01-27 | 91.33 | 118.41 | -1.86 | UNM ahead |
| 2025-01-24 | 90.46 | 117.90 | -1.92 | UNM ahead |
| 2025-01-23 | 90.50 | 118.77 | -1.99 | UNM ahead |
| 2025-01-22 | 90.27 | 118.42 | -2.01 | UNM ahead |
| 2025-01-21 | 91.24 | 118.59 | -1.97 | UNM ahead |
| 2025-01-17 | 90.27 | 117.86 | -2.02 | UNM ahead |
| 2025-01-16 | 89.70 | 116.79 | -2.02 | UNM ahead |
| 2025-01-15 | 88.53 | 115.26 | -2.05 | UNM ahead |
| 2025-01-14 | 87.15 | 114.71 | -2.15 | UNM ahead |
| 2025-01-13 | 86.00 | 112.98 | -2.16 | UNM ahead |
| 2025-01-10 | 84.39 | 112.86 | -2.33 | UNM ahead |
| 2025-01-08 | 86.59 | 114.67 | -2.28 | UNM ahead |
| 2025-01-07 | 86.56 | 115.33 | -2.36 | UNM ahead |
| 2025-01-06 | 86.03 | 115.17 | -2.43 | UNM ahead |
| 2025-01-03 | 86.13 | 114.90 | -2.44 | UNM ahead |
| 2025-01-02 | 85.55 | 114.63 | -2.51 | UNM ahead |
| 2024-12-31 | 85.57 | 114.79 | -2.56 | UNM ahead |
| 2024-12-30 | 85.37 | 114.82 | -2.62 | UNM ahead |
| 2024-12-27 | 85.91 | 115.04 | -2.63 | UNM ahead |
| 2024-12-26 | 86.60 | 115.95 | -2.67 | UNM ahead |
| 2024-12-24 | 86.00 | 115.28 | -2.72 | UNM ahead |
| 2024-12-23 | 85.56 | 114.40 | -2.75 | UNM ahead |
| 2024-12-20 | 85.45 | 113.19 | -2.72 | UNM ahead |
| 2024-12-19 | 83.11 | 111.54 | -2.88 | UNM ahead |
| 2024-12-18 | 82.81 | 110.83 | -2.91 | UNM ahead |
| 2024-12-17 | 85.72 | 114.52 | -2.95 | UNM ahead |
| 2024-12-16 | 86.97 | 115.66 | -2.96 | UNM ahead |
| 2024-12-13 | 87.23 | 116.05 | -3.02 | UNM ahead |
| 2024-12-12 | 87.65 | 115.69 | -3.02 | UNM ahead |
| 2024-12-11 | 88.26 | 114.62 | -2.93 | UNM ahead |
| 2024-12-10 | 89.25 | 114.49 | -2.87 | UNM ahead |
| 2024-12-09 | 91.23 | 116.39 | -2.87 | UNM ahead |
| 2024-12-06 | 93.30 | 117.82 | -2.83 | UNM ahead |
| 2024-12-05 | 92.58 | 119.62 | -3.11 | UNM ahead |
| 2024-12-04 | 93.79 | 118.94 | -2.99 | UNM ahead |
| 2024-12-03 | 93.74 | 119.52 | -3.11 | UNM ahead |
| 2024-12-02 | 94.43 | 120.01 | -3.14 | UNM ahead |
| 2024-11-29 | 96.27 | 120.87 | -3.08 | UNM ahead |
| 2024-11-27 | 96.48 | 121.14 | -3.15 | UNM ahead |
| 2024-11-26 | 95.94 | 119.79 | -3.17 | UNM ahead |
| 2024-11-25 | 96.22 | 119.79 | -3.21 | UNM ahead |
| 2024-11-22 | 94.77 | 119.21 | -3.41 | UNM ahead |
| 2024-11-21 | 93.63 | 118.56 | -3.58 | UNM ahead |
| 2024-11-20 | 93.02 | 114.15 | -3.31 | UNM ahead |
| 2024-11-19 | 93.06 | 113.30 | -3.30 | UNM ahead |
| 2024-11-18 | 95.15 | 114.08 | -3.19 | UNM ahead |
| 2024-11-15 | 95.69 | 115.04 | -3.30 | UNM ahead |
| 2024-11-14 | 95.47 | 113.55 | -3.25 | UNM ahead |
| 2024-11-13 | 95.78 | 111.63 | -3.07 | UNM ahead |
| 2024-11-12 | 96.30 | 112.07 | -3.12 | UNM ahead |
| 2024-11-11 | 96.41 | 110.37 | -2.97 | UNM ahead |
| 2024-11-08 | 94.46 | 109.12 | -3.16 | UNM ahead |
| 2024-11-07 | 95.07 | 109.02 | -3.14 | UNM ahead |
| 2024-11-06 | 95.22 | 110.34 | -3.37 | UNM ahead |
| 2024-11-05 | 91.26 | 101.96 | -2.93 | UNM ahead |
| 2024-11-04 | 90.16 | 100.72 | -2.99 | UNM ahead |
| 2024-11-01 | 90.85 | 100.79 | -2.95 | UNM ahead |
| 2024-10-31 | 91.09 | 100.88 | -2.96 | UNM ahead |
| 2024-10-30 | 93.37 | 101.21 | -2.67 | UNM ahead |
| 2024-10-29 | 93.04 | 96.87 | -2.08 | UNM ahead |
| 2024-10-28 | 93.40 | 97.22 | -2.09 | UNM ahead |
| 2024-10-25 | 92.54 | 96.93 | -2.19 | UNM ahead |
| 2024-10-24 | 99.10 | 99.56 | -1.56 | UNM ahead |
| 2024-10-23 | 99.03 | 99.70 | -1.59 | UNM ahead |
| 2024-10-22 | 99.40 | 99.54 | -1.51 | UNM ahead |
| 2024-10-21 | 99.10 | 99.62 | -1.56 | UNM ahead |
| 2024-10-18 | 100.00 | 100.00 | -1.47 | UNM ahead |
One-day company-specific moves (4+ standard deviations, which block ideas for 10 sessions): Jul 30, 2025 (PFG -4.5%, UNM -12.2%); Nov 4, 2025 (PFG -1.2%, UNM +7.2%). Upcoming earnings: PFG Oct 26, 2026 (after-hours); UNM Nov 3, 2026 (after-hours).
Paired trades
The shared paper book and the replay, kept apart
Forward paper record
No paper position on this pair yet.
Historical simulation (a diagnostic, same rules)
No simulated trade through Oct 20, 2026: the pair rarely passed every test while 2 standard deviations apart.
Per $10,000 a leg. A replay on today's companies cannot prove an edge.
The companies
PFG and UNM at a glance
PFG Principal Financial Group Inc
- Listing
- Nasdaq · SEC CIK 1126328
- Industry
- Accident &Health Insurance · SIC 6321 Accident & Health Insurance
- Market value
- $22.9B
- Price history
- 2,521 daily closes, Oct 12, 2016 to Oct 22, 2026
UNM Unum Group
- Listing
- NYSE · SEC CIK 5513
- Industry
- Accident &Health Insurance · SIC 6321 Accident & Health Insurance
- Market value
- $14.5B
- Price history
- 2,521 daily closes, Oct 12, 2016 to Oct 22, 2026
Daily prices: Nasdaq.com. Filings and industry codes: SEC EDGAR. Earnings dates: Nasdaq earnings calendar.
Related
All pairs →Other rivals of PFG and UNM
Follow the research behind the paper book
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Explore the private betaPaper only: hypothetical paired positions with modelled costs. No broker, no orders, no real money. A historical simulation is a diagnostic, not proof of an edge. Not investment advice.
