Freeport-McMoRan Inc. vs Rio Tinto Plc
WatchlistFCX / RIOPrices through Oct 22, 2026
Why these are rivals: #2 and #3 by market value ($112B vs $100B) in Nasdaq's "Metal Mining" industry; SEC SIC 1000 / 1000 (same major group).
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: -1.53 (needs <= -2.873 (5% critical value))
Business leadership
Business size
Annual revenue reported to the SEC. Scale, not market share.
| Year | FCX | RIO | Larger |
|---|---|---|---|
| 2025 | $25.9B | - | - |
| 2024 | $25.5B | - | - |
| 2023 | $22.9B | - | - |
| 2022 | $22.8B | - | - |
| 2021 | $22.8B | - | - |
| 2020 | $14.2B | - | - |
Market value: FCX $100.2B, RIO $112.4B.
Stock leadership
FCX is ahead now
Measured against the pair's own last 252 trading days.
FCX leads RIO by 1.87 standard deviations: +16.9% over its usual price ratio. 5 lead switches in the last year.
| Price change | 3 mo | 6 mo | 12 mo |
|---|---|---|---|
| FCX | +3.2% | +5.1% | +56.4% |
| RIO | -7.8% | -14.9% | +23.1% |
Relationship
Not a measured twin today
Only these tests can make a pair tradable on paper.
- Pass
- Aligned sessions: 2521 (needs >= 254)
- Pass
- Co-movement: daily return correlation, 252 sessions: 0.76 (needs >= 0.60)
- Fail
- Mean reversion: ADF t-statistic of the spread: -1.53 (needs <= -2.873 (5% critical value))
- Pass
- Speed: half-life of the spread, sessions: 33.85 (needs <= 63)
- Data
- Both stocks current
The twins over two years
Prices side by side, and the gap between them
FCX Freeport-McMoRan Inc. RIO Rio Tinto PlcPrice 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: FCX relative to RIO, against the 252 sessions before each day. Above 0: FCX ahead; below 0: RIO ahead. Lines at +/-2 (idea) and +/-4 (stop).
Data table (504 sessions)
| Date | FCX index | RIO index | z | Ahead |
|---|---|---|---|---|
| 2026-10-22 | 134.06 | 128.73 | +1.87 | FCX ahead |
| 2026-10-21 | 143.01 | 132.99 | +2.29 | FCX ahead |
| 2026-10-20 | 142.94 | 134.88 | +2.14 | FCX ahead |
| 2026-10-19 | 144.77 | 136.93 | +2.14 | FCX ahead |
| 2026-10-16 | 144.33 | 138.19 | +2.01 | FCX ahead |
| 2026-10-15 | 145.41 | 138.02 | +2.15 | FCX ahead |
| 2026-10-14 | 144.50 | 139.61 | +1.95 | FCX ahead |
| 2026-10-13 | 150.31 | 142.38 | +2.23 | FCX ahead |
| 2026-10-12 | 152.12 | 144.28 | +2.25 | FCX ahead |
| 2026-10-09 | 152.95 | 145.01 | +2.28 | FCX ahead |
| 2026-10-08 | 147.65 | 142.81 | +2.05 | FCX ahead |
| 2026-10-07 | 149.15 | 142.53 | +2.24 | FCX ahead |
| 2026-10-06 | 150.60 | 146.71 | +2.01 | FCX ahead |
| 2026-10-05 | 150.68 | 146.34 | +2.07 | FCX ahead |
| 2026-10-02 | 149.52 | 144.14 | +2.20 | FCX ahead |
| 2026-10-01 | 143.79 | 142.09 | +1.89 | FCX ahead |
| 2026-09-30 | 145.29 | 144.08 | +1.86 | FCX ahead |
| 2026-09-29 | 146.93 | 144.06 | +2.02 | FCX ahead |
| 2026-09-28 | 149.36 | 144.45 | +2.22 | FCX ahead |
| 2026-09-25 | 150.08 | 144.68 | +2.30 | FCX ahead |
| 2026-09-24 | 149.61 | 144.54 | +2.29 | FCX ahead |
| 2026-09-23 | 150.64 | 145.73 | +2.29 | FCX ahead |
| 2026-09-22 | 154.32 | 149.16 | +2.32 | FCX ahead |
| 2026-09-21 | 149.77 | 148.47 | +1.98 | FCX ahead |
| 2026-09-18 | 148.48 | 148.97 | +1.82 | FCX ahead |
| 2026-09-17 | 147.05 | 150.00 | +1.59 | FCX ahead |
| 2026-09-16 | 143.71 | 146.56 | +1.59 | FCX ahead |
| 2026-09-15 | 144.00 | 148.81 | +1.41 | FCX ahead |
| 2026-09-14 | 143.92 | 149.39 | +1.34 | FCX ahead |
| 2026-09-11 | 147.51 | 152.94 | +1.36 | FCX ahead |
| 2026-09-10 | 147.80 | 152.07 | +1.46 | FCX ahead |
| 2026-09-09 | 158.22 | 158.72 | +1.81 | FCX ahead |
| 2026-09-08 | 159.03 | 158.86 | +1.88 | FCX ahead |
| 2026-09-04 | 150.95 | 158.00 | +1.23 | FCX ahead |
| 2026-09-03 | 150.60 | 157.34 | +1.24 | FCX ahead |
| 2026-09-02 | 153.45 | 157.21 | +1.51 | FCX ahead |
| 2026-09-01 | 150.42 | 155.84 | +1.36 | FCX ahead |
| 2026-08-31 | 157.20 | 156.82 | +1.88 | FCX ahead |
| 2026-08-28 | 158.68 | 158.05 | +1.91 | FCX ahead |
| 2026-08-27 | 162.76 | 160.31 | +2.08 | FCX ahead |
| 2026-08-26 | 163.97 | 160.19 | +2.21 | FCX ahead |
| 2026-08-25 | 165.86 | 163.42 | +2.11 | FCX ahead |
| 2026-08-24 | 161.48 | 160.34 | +2.02 | FCX ahead |
| 2026-08-21 | 159.11 | 161.11 | +1.76 | FCX ahead |
| 2026-08-20 | 147.82 | 156.32 | +1.15 | FCX ahead |
| 2026-08-19 | 143.40 | 153.67 | +0.96 | FCX ahead |
| 2026-08-18 | 137.65 | 147.93 | +0.91 | FCX ahead |
| 2026-08-17 | 141.93 | 148.73 | +1.28 | FCX ahead |
| 2026-08-14 | 138.00 | 146.39 | +1.11 | FCX ahead |
| 2026-08-13 | 138.71 | 150.24 | +0.81 | FCX ahead |
| 2026-08-12 | 143.67 | 154.87 | +0.88 | FCX ahead |
| 2026-08-11 | 142.94 | 154.51 | +0.84 | FCX ahead |
| 2026-08-10 | 146.35 | 155.92 | +1.05 | FCX ahead |
| 2026-08-07 | 144.50 | 154.68 | +0.99 | FCX ahead |
| 2026-08-06 | 141.51 | 152.46 | +0.90 | FCX ahead |
| 2026-08-05 | 144.02 | 155.31 | +0.89 | FCX ahead |
| 2026-08-04 | 139.68 | 151.48 | +0.81 | FCX ahead |
| 2026-08-03 | 132.09 | 146.73 | +0.46 | near the usual relationship |
| 2026-07-31 | 129.99 | 148.18 | +0.09 | near the usual relationship |
| 2026-07-30 | 131.67 | 148.68 | +0.22 | near the usual relationship |
| 2026-07-29 | 124.51 | 143.30 | -0.05 | near the usual relationship |
| 2026-07-28 | 127.94 | 140.21 | +0.64 | FCX ahead |
| 2026-07-27 | 130.18 | 140.68 | +0.83 | FCX ahead |
| 2026-07-24 | 129.93 | 139.57 | +0.92 | FCX ahead |
| 2026-07-23 | 131.80 | 140.01 | +1.07 | FCX ahead |
| 2026-07-22 | 134.91 | 141.19 | +1.28 | FCX ahead |
| 2026-07-21 | 129.85 | 138.54 | +1.00 | FCX ahead |
| 2026-07-20 | 122.02 | 136.28 | +0.35 | near the usual relationship |
| 2026-07-17 | 121.17 | 137.93 | +0.07 | near the usual relationship |
| 2026-07-16 | 121.54 | 138.72 | +0.03 | near the usual relationship |
| 2026-07-15 | 126.55 | 143.24 | +0.13 | near the usual relationship |
| 2026-07-14 | 128.58 | 142.73 | +0.39 | near the usual relationship |
| 2026-07-13 | 124.47 | 137.47 | +0.44 | near the usual relationship |
| 2026-07-10 | 127.69 | 138.53 | +0.66 | FCX ahead |
| 2026-07-09 | 125.63 | 136.92 | +0.59 | FCX ahead |
| 2026-07-08 | 119.34 | 135.86 | +0.01 | near the usual relationship |
| 2026-07-07 | 123.14 | 139.61 | +0.05 | near the usual relationship |
| 2026-07-06 | 126.61 | 143.18 | +0.08 | near the usual relationship |
| 2026-07-02 | 126.55 | 144.46 | -0.05 | near the usual relationship |
| 2026-07-01 | 125.63 | 142.82 | +0.00 | near the usual relationship |
| 2026-06-30 | 130.53 | 145.24 | +0.26 | near the usual relationship |
| 2026-06-29 | 127.90 | 144.26 | +0.08 | near the usual relationship |
| 2026-06-26 | 129.62 | 143.42 | +0.31 | near the usual relationship |
| 2026-06-25 | 130.34 | 145.52 | +0.20 | near the usual relationship |
| 2026-06-24 | 128.35 | 143.86 | +0.14 | near the usual relationship |
| 2026-06-23 | 133.67 | 146.24 | +0.43 | near the usual relationship |
| 2026-06-22 | 143.65 | 152.02 | +0.83 | FCX ahead |
| 2026-06-18 | 142.55 | 153.12 | +0.64 | FCX ahead |
| 2026-06-17 | 143.34 | 157.08 | +0.40 | near the usual relationship |
| 2026-06-16 | 145.60 | 161.78 | +0.23 | near the usual relationship |
| 2026-06-15 | 145.56 | 162.01 | +0.21 | near the usual relationship |
| 2026-06-12 | 141.99 | 161.18 | -0.03 | near the usual relationship |
| 2026-06-11 | 137.69 | 158.57 | -0.21 | near the usual relationship |
| 2026-06-10 | 128.85 | 151.56 | -0.46 | near the usual relationship |
| 2026-06-09 | 133.35 | 155.17 | -0.34 | near the usual relationship |
| 2026-06-08 | 132.65 | 154.42 | -0.35 | near the usual relationship |
| 2026-06-05 | 131.53 | 154.05 | -0.43 | near the usual relationship |
| 2026-06-04 | 144.65 | 161.26 | +0.16 | near the usual relationship |
| 2026-06-03 | 146.62 | 165.02 | +0.04 | near the usual relationship |
| 2026-06-02 | 148.86 | 170.85 | -0.19 | near the usual relationship |
| 2026-06-01 | 139.14 | 166.71 | -0.70 | RIO ahead |
| 2026-05-29 | 136.38 | 162.78 | -0.66 | RIO ahead |
| 2026-05-28 | 136.72 | 162.90 | -0.64 | RIO ahead |
| 2026-05-27 | 132.07 | 163.11 | -1.07 | RIO ahead |
| 2026-05-26 | 133.58 | 163.62 | -0.97 | RIO ahead |
| 2026-05-22 | 128.66 | 159.47 | -1.12 | RIO ahead |
| 2026-05-21 | 129.33 | 160.28 | -1.12 | RIO ahead |
| 2026-05-20 | 126.34 | 158.06 | -1.24 | RIO ahead |
| 2026-05-19 | 121.83 | 154.41 | -1.40 | RIO ahead |
| 2026-05-18 | 125.57 | 158.09 | -1.32 | RIO ahead |
| 2026-05-15 | 130.78 | 158.64 | -0.88 | RIO ahead |
| 2026-05-14 | 137.28 | 167.67 | -0.97 | RIO ahead |
| 2026-05-13 | 139.39 | 171.42 | -1.05 | RIO ahead |
| 2026-05-12 | 137.05 | 167.53 | -0.99 | RIO ahead |
| 2026-05-11 | 133.60 | 165.09 | -1.12 | RIO ahead |
| 2026-05-08 | 127.96 | 161.23 | -1.36 | RIO ahead |
| 2026-05-07 | 125.80 | 157.76 | -1.31 | RIO ahead |
| 2026-05-06 | 126.38 | 161.43 | -1.55 | RIO ahead |
| 2026-05-05 | 119.72 | 153.76 | -1.63 | RIO ahead |
| 2026-05-04 | 115.34 | 150.90 | -1.87 | RIO ahead |
| 2026-05-01 | 117.37 | 153.89 | -1.91 | RIO ahead |
| 2026-04-30 | 119.93 | 153.73 | -1.64 | RIO ahead |
| 2026-04-29 | 118.16 | 147.63 | -1.32 | RIO ahead |
| 2026-04-28 | 120.82 | 150.69 | -1.31 | RIO ahead |
| 2026-04-27 | 125.72 | 152.92 | -1.00 | RIO ahead |
| 2026-04-24 | 126.71 | 152.40 | -0.85 | RIO ahead |
| 2026-04-23 | 127.60 | 151.24 | -0.66 | RIO ahead |
| 2026-04-22 | 146.04 | 153.43 | +0.85 | FCX ahead |
| 2026-04-21 | 140.24 | 149.51 | +0.67 | FCX ahead |
| 2026-04-20 | 145.66 | 152.74 | +0.88 | FCX ahead |
| 2026-04-17 | 145.72 | 153.23 | +0.86 | FCX ahead |
| 2026-04-16 | 141.72 | 152.56 | +0.57 | FCX ahead |
| 2026-04-15 | 142.59 | 150.80 | +0.80 | FCX ahead |
| 2026-04-14 | 141.70 | 151.27 | +0.69 | FCX ahead |
| 2026-04-13 | 141.20 | 151.77 | +0.61 | FCX ahead |
| 2026-04-10 | 140.72 | 150.34 | +0.69 | FCX ahead |
| 2026-04-09 | 137.92 | 148.61 | +0.60 | FCX ahead |
| 2026-04-08 | 135.12 | 150.63 | +0.20 | near the usual relationship |
| 2026-04-07 | 126.11 | 144.83 | -0.15 | near the usual relationship |
| 2026-04-06 | 126.71 | 143.83 | -0.01 | near the usual relationship |
| 2026-04-02 | 127.40 | 144.51 | +0.00 | near the usual relationship |
| 2026-04-01 | 127.02 | 145.06 | -0.08 | near the usual relationship |
| 2026-03-31 | 122.00 | 142.73 | -0.37 | near the usual relationship |
| 2026-03-30 | 113.43 | 135.89 | -0.65 | RIO ahead |
| 2026-03-27 | 116.73 | 132.56 | -0.02 | near the usual relationship |
| 2026-03-26 | 115.88 | 131.26 | +0.01 | near the usual relationship |
| 2026-03-25 | 118.49 | 133.94 | +0.03 | near the usual relationship |
| 2026-03-24 | 117.23 | 132.76 | +0.01 | near the usual relationship |
| 2026-03-23 | 114.03 | 131.33 | -0.19 | near the usual relationship |
| 2026-03-20 | 108.12 | 127.22 | -0.44 | near the usual relationship |
| 2026-03-19 | 111.29 | 131.04 | -0.45 | near the usual relationship |
| 2026-03-18 | 115.09 | 134.21 | -0.33 | near the usual relationship |
| 2026-03-17 | 120.57 | 137.39 | -0.06 | near the usual relationship |
| 2026-03-16 | 120.24 | 137.48 | -0.10 | near the usual relationship |
| 2026-03-13 | 117.02 | 134.38 | -0.14 | near the usual relationship |
| 2026-03-12 | 122.89 | 138.77 | +0.06 | near the usual relationship |
| 2026-03-11 | 127.73 | 140.88 | +0.34 | near the usual relationship |
| 2026-03-10 | 129.51 | 140.27 | +0.56 | FCX ahead |
| 2026-03-09 | 125.55 | 138.23 | +0.37 | near the usual relationship |
| 2026-03-06 | 123.20 | 138.02 | +0.17 | near the usual relationship |
| 2026-03-05 | 130.05 | 142.85 | +0.41 | near the usual relationship |
| 2026-03-04 | 136.84 | 147.26 | +0.65 | FCX ahead |
| 2026-03-03 | 136.09 | 145.82 | +0.71 | FCX ahead |
| 2026-03-02 | 141.74 | 152.40 | +0.67 | FCX ahead |
| 2026-02-27 | 141.30 | 151.99 | +0.67 | FCX ahead |
| 2026-02-26 | 141.93 | 151.61 | +0.76 | FCX ahead |
| 2026-02-25 | 142.84 | 154.19 | +0.64 | FCX ahead |
| 2026-02-24 | 140.89 | 150.11 | +0.80 | FCX ahead |
| 2026-02-23 | 136.05 | 149.43 | +0.46 | near the usual relationship |
| 2026-02-20 | 133.54 | 148.55 | +0.31 | near the usual relationship |
| 2026-02-19 | 129.87 | 147.40 | +0.09 | near the usual relationship |
| 2026-02-18 | 129.83 | 151.36 | -0.22 | near the usual relationship |
| 2026-02-17 | 126.80 | 148.23 | -0.25 | near the usual relationship |
| 2026-02-13 | 130.43 | 150.05 | -0.07 | near the usual relationship |
| 2026-02-12 | 128.77 | 149.80 | -0.19 | near the usual relationship |
| 2026-02-11 | 135.87 | 152.26 | +0.24 | near the usual relationship |
| 2026-02-10 | 131.30 | 148.78 | +0.11 | near the usual relationship |
| 2026-02-09 | 132.03 | 148.18 | +0.23 | near the usual relationship |
| 2026-02-06 | 125.92 | 142.92 | +0.10 | near the usual relationship |
| 2026-02-05 | 122.91 | 139.41 | +0.11 | near the usual relationship |
| 2026-02-04 | 128.39 | 147.61 | -0.04 | near the usual relationship |
| 2026-02-03 | 134.23 | 147.44 | +0.48 | near the usual relationship |
| 2026-02-02 | 126.11 | 141.55 | +0.24 | near the usual relationship |
| 2026-01-30 | 125.01 | 139.27 | +0.33 | near the usual relationship |
| 2026-01-29 | 135.18 | 145.55 | +0.72 | FCX ahead |
| 2026-01-28 | 132.07 | 142.85 | +0.68 | FCX ahead |
| 2026-01-27 | 130.49 | 142.15 | +0.60 | FCX ahead |
| 2026-01-26 | 126.96 | 138.42 | +0.60 | FCX ahead |
| 2026-01-23 | 125.38 | 138.36 | +0.46 | near the usual relationship |
| 2026-01-22 | 122.15 | 133.57 | +0.57 | FCX ahead |
| 2026-01-21 | 125.74 | 135.92 | +0.70 | FCX ahead |
| 2026-01-20 | 124.68 | 131.09 | +1.02 | FCX ahead |
| 2026-01-16 | 121.86 | 130.25 | +0.83 | FCX ahead |
| 2026-01-15 | 124.45 | 132.11 | +0.92 | FCX ahead |
| 2026-01-14 | 125.26 | 131.40 | +1.06 | FCX ahead |
| 2026-01-13 | 123.16 | 127.89 | +1.18 | FCX ahead |
| 2026-01-12 | 121.86 | 126.81 | +1.16 | FCX ahead |
| 2026-01-09 | 117.33 | 124.13 | +0.97 | FCX ahead |
| 2026-01-08 | 112.54 | 128.81 | +0.07 | near the usual relationship |
| 2026-01-07 | 115.19 | 129.87 | +0.24 | near the usual relationship |
| 2026-01-06 | 116.54 | 130.40 | +0.33 | near the usual relationship |
| 2026-01-05 | 112.93 | 127.31 | +0.25 | near the usual relationship |
| 2026-01-02 | 107.78 | 124.59 | -0.04 | near the usual relationship |
| 2025-12-31 | 105.42 | 122.44 | -0.10 | near the usual relationship |
| 2025-12-30 | 106.70 | 123.19 | -0.03 | near the usual relationship |
| 2025-12-29 | 106.85 | 123.01 | +0.00 | near the usual relationship |
| 2025-12-26 | 110.09 | 125.83 | +0.08 | near the usual relationship |
| 2025-12-24 | 107.76 | 123.76 | +0.02 | near the usual relationship |
| 2025-12-23 | 107.72 | 123.88 | +0.01 | near the usual relationship |
| 2025-12-22 | 105.11 | 122.55 | -0.15 | near the usual relationship |
| 2025-12-19 | 102.01 | 119.83 | -0.24 | near the usual relationship |
| 2025-12-18 | 99.46 | 118.77 | -0.43 | near the usual relationship |
| 2025-12-17 | 99.25 | 118.10 | -0.39 | near the usual relationship |
| 2025-12-16 | 98.67 | 116.26 | -0.28 | near the usual relationship |
| 2025-12-15 | 98.63 | 116.00 | -0.26 | near the usual relationship |
| 2025-12-12 | 98.34 | 115.76 | -0.28 | near the usual relationship |
| 2025-12-11 | 99.85 | 117.41 | -0.27 | near the usual relationship |
| 2025-12-10 | 96.41 | 116.65 | -0.60 | RIO ahead |
| 2025-12-09 | 92.98 | 113.83 | -0.74 | RIO ahead |
| 2025-12-08 | 93.40 | 111.72 | -0.48 | near the usual relationship |
| 2025-12-05 | 93.81 | 111.78 | -0.44 | near the usual relationship |
| 2025-12-04 | 92.59 | 112.81 | -0.70 | RIO ahead |
| 2025-12-03 | 92.42 | 113.65 | -0.81 | RIO ahead |
| 2025-12-02 | 89.19 | 110.68 | -0.92 | RIO ahead |
| 2025-12-01 | 89.39 | 110.11 | -0.84 | RIO ahead |
| 2025-11-28 | 89.21 | 110.08 | -0.87 | RIO ahead |
| 2025-11-26 | 87.48 | 110.47 | -1.14 | RIO ahead |
| 2025-11-25 | 85.24 | 108.74 | -1.27 | RIO ahead |
| 2025-11-24 | 84.66 | 107.82 | -1.26 | RIO ahead |
| 2025-11-21 | 82.75 | 107.08 | -1.46 | RIO ahead |
| 2025-11-20 | 82.25 | 105.23 | -1.34 | RIO ahead |
| 2025-11-19 | 85.62 | 106.23 | -0.99 | RIO ahead |
| 2025-11-18 | 83.02 | 106.70 | -1.41 | RIO ahead |
| 2025-11-17 | 80.95 | 107.85 | -1.84 | RIO ahead |
| 2025-11-14 | 83.35 | 108.06 | -1.54 | RIO ahead |
| 2025-11-13 | 84.14 | 108.69 | -1.51 | RIO ahead |
| 2025-11-12 | 86.78 | 108.80 | -1.17 | RIO ahead |
| 2025-11-11 | 85.24 | 107.59 | -1.26 | RIO ahead |
| 2025-11-10 | 84.99 | 107.54 | -1.30 | RIO ahead |
| 2025-11-07 | 82.63 | 106.07 | -1.48 | RIO ahead |
| 2025-11-06 | 80.22 | 105.98 | -1.84 | RIO ahead |
| 2025-11-05 | 83.46 | 105.66 | -1.35 | RIO ahead |
| 2025-11-04 | 81.82 | 103.87 | -1.40 | RIO ahead |
| 2025-11-03 | 85.47 | 107.67 | -1.31 | RIO ahead |
| 2025-10-31 | 86.55 | 109.76 | -1.41 | RIO ahead |
| 2025-10-30 | 86.61 | 110.47 | -1.49 | RIO ahead |
| 2025-10-29 | 87.57 | 111.05 | -1.43 | RIO ahead |
| 2025-10-28 | 85.45 | 110.14 | -1.64 | RIO ahead |
| 2025-10-27 | 85.31 | 108.52 | -1.50 | RIO ahead |
| 2025-10-24 | 85.87 | 107.93 | -1.36 | RIO ahead |
| 2025-10-23 | 85.57 | 108.05 | -1.43 | RIO ahead |
| 2025-10-22 | 84.64 | 106.73 | -1.43 | RIO ahead |
| 2025-10-21 | 85.74 | 104.56 | -1.03 | RIO ahead |
| 2025-10-20 | 87.57 | 105.94 | -0.95 | RIO ahead |
| 2025-10-17 | 85.47 | 104.07 | -1.03 | RIO ahead |
| 2025-10-16 | 86.55 | 105.19 | -1.02 | RIO ahead |
| 2025-10-15 | 86.57 | 105.35 | -1.04 | RIO ahead |
| 2025-10-14 | 87.11 | 104.38 | -0.86 | RIO ahead |
| 2025-10-13 | 88.79 | 104.28 | -0.63 | RIO ahead |
| 2025-10-10 | 84.85 | 100.12 | -0.70 | RIO ahead |
| 2025-10-09 | 89.89 | 102.51 | -0.30 | near the usual relationship |
| 2025-10-08 | 88.94 | 103.58 | -0.55 | RIO ahead |
| 2025-10-07 | 84.45 | 101.36 | -0.91 | RIO ahead |
| 2025-10-06 | 83.69 | 102.48 | -1.16 | RIO ahead |
| 2025-10-03 | 82.34 | 101.15 | -1.20 | RIO ahead |
| 2025-10-02 | 80.68 | 101.38 | -1.48 | RIO ahead |
| 2025-10-01 | 81.13 | 101.42 | -1.43 | RIO ahead |
| 2025-09-30 | 81.40 | 100.99 | -1.36 | RIO ahead |
| 2025-09-29 | 77.04 | 100.86 | -2.02 | RIO ahead |
| 2025-09-26 | 74.20 | 99.14 | -2.29 | RIO ahead |
| 2025-09-25 | 73.35 | 100.11 | -2.59 | RIO ahead |
| 2025-09-24 | 78.19 | 97.72 | -1.54 | RIO ahead |
| 2025-09-23 | 94.15 | 97.26 | +0.80 | FCX ahead |
| 2025-09-22 | 93.73 | 97.38 | +0.73 | FCX ahead |
| 2025-09-19 | 93.28 | 95.44 | +0.92 | FCX ahead |
| 2025-09-18 | 93.25 | 94.83 | +1.00 | FCX ahead |
| 2025-09-17 | 93.59 | 96.37 | +0.85 | FCX ahead |
| 2025-09-16 | 94.02 | 97.06 | +0.82 | FCX ahead |
| 2025-09-15 | 94.73 | 97.49 | +0.86 | FCX ahead |
| 2025-09-12 | 92.82 | 95.53 | +0.87 | FCX ahead |
| 2025-09-11 | 95.31 | 95.69 | +1.18 | FCX ahead |
| 2025-09-10 | 93.15 | 95.01 | +0.99 | FCX ahead |
| 2025-09-09 | 91.10 | 94.66 | +0.76 | FCX ahead |
| 2025-09-08 | 96.85 | 97.49 | +1.16 | FCX ahead |
| 2025-09-05 | 96.18 | 97.87 | +1.03 | FCX ahead |
| 2025-09-04 | 95.62 | 95.56 | +1.26 | FCX ahead |
| 2025-09-03 | 95.91 | 95.59 | +1.31 | FCX ahead |
| 2025-09-02 | 93.28 | 94.69 | +1.08 | FCX ahead |
| 2025-08-29 | 92.15 | 95.96 | +0.76 | FCX ahead |
| 2025-08-28 | 92.09 | 96.21 | +0.72 | FCX ahead |
| 2025-08-27 | 91.05 | 95.03 | +0.73 | FCX ahead |
| 2025-08-26 | 92.05 | 94.78 | +0.90 | FCX ahead |
| 2025-08-25 | 90.68 | 95.36 | +0.64 | FCX ahead |
| 2025-08-22 | 89.83 | 95.91 | +0.45 | near the usual relationship |
| 2025-08-21 | 86.59 | 93.79 | +0.26 | near the usual relationship |
| 2025-08-20 | 85.74 | 92.75 | +0.28 | near the usual relationship |
| 2025-08-19 | 86.05 | 92.70 | +0.33 | near the usual relationship |
| 2025-08-18 | 86.65 | 92.35 | +0.47 | near the usual relationship |
| 2025-08-15 | 87.92 | 93.70 | +0.47 | near the usual relationship |
| 2025-08-14 | 87.75 | 95.65 | +0.19 | near the usual relationship |
| 2025-08-13 | 88.71 | 97.26 | +0.11 | near the usual relationship |
| 2025-08-12 | 87.48 | 96.54 | +0.03 | near the usual relationship |
| 2025-08-11 | 86.05 | 95.07 | +0.02 | near the usual relationship |
| 2025-08-08 | 86.90 | 94.65 | +0.20 | near the usual relationship |
| 2025-08-07 | 84.68 | 92.98 | +0.10 | near the usual relationship |
| 2025-08-06 | 82.73 | 91.94 | -0.05 | near the usual relationship |
| 2025-08-05 | 83.08 | 91.34 | +0.09 | near the usual relationship |
| 2025-08-04 | 83.89 | 91.80 | +0.14 | near the usual relationship |
| 2025-08-01 | 83.08 | 91.26 | +0.09 | near the usual relationship |
| 2025-07-31 | 83.52 | 91.45 | +0.13 | near the usual relationship |
| 2025-07-30 | 81.24 | 91.02 | -0.16 | near the usual relationship |
| 2025-07-29 | 89.73 | 95.27 | +0.52 | FCX ahead |
| 2025-07-28 | 90.89 | 95.15 | +0.69 | FCX ahead |
| 2025-07-25 | 93.17 | 96.54 | +0.82 | FCX ahead |
| 2025-07-24 | 92.53 | 97.66 | +0.59 | FCX ahead |
| 2025-07-23 | 93.07 | 98.87 | +0.51 | FCX ahead |
| 2025-07-22 | 95.06 | 98.42 | +0.83 | FCX ahead |
| 2025-07-21 | 93.79 | 94.94 | +1.11 | FCX ahead |
| 2025-07-18 | 92.98 | 92.63 | +1.31 | FCX ahead |
| 2025-07-17 | 92.28 | 91.85 | +1.31 | FCX ahead |
| 2025-07-16 | 91.28 | 91.37 | +1.24 | FCX ahead |
| 2025-07-15 | 91.57 | 89.46 | +1.54 | FCX ahead |
| 2025-07-14 | 94.71 | 91.52 | +1.68 | FCX ahead |
| 2025-07-11 | 96.22 | 93.48 | +1.61 | FCX ahead |
| 2025-07-10 | 97.99 | 91.95 | +2.05 | FCX ahead |
| 2025-07-09 | 94.62 | 89.83 | +1.91 | FCX ahead |
| 2025-07-08 | 96.04 | 89.86 | +2.11 | FCX ahead |
| 2025-07-07 | 93.67 | 88.22 | +2.04 | FCX ahead |
| 2025-07-03 | 95.06 | 90.30 | +1.94 | FCX ahead |
| 2025-07-02 | 95.00 | 92.07 | +1.69 | FCX ahead |
| 2025-07-01 | 91.43 | 89.20 | +1.61 | FCX ahead |
| 2025-06-30 | 89.98 | 89.24 | +1.40 | FCX ahead |
| 2025-06-27 | 91.05 | 89.87 | +1.46 | FCX ahead |
| 2025-06-26 | 92.28 | 89.63 | +1.67 | FCX ahead |
| 2025-06-25 | 86.36 | 86.77 | +1.24 | FCX ahead |
| 2025-06-24 | 87.19 | 87.50 | +1.25 | FCX ahead |
| 2025-06-23 | 84.97 | 87.35 | +0.94 | FCX ahead |
| 2025-06-20 | 83.48 | 85.51 | +0.99 | FCX ahead |
| 2025-06-18 | 85.47 | 87.12 | +1.05 | FCX ahead |
| 2025-06-17 | 85.87 | 87.22 | +1.10 | FCX ahead |
| 2025-06-16 | 86.99 | 89.21 | +0.97 | FCX ahead |
| 2025-06-13 | 84.97 | 88.74 | +0.74 | FCX ahead |
| 2025-06-12 | 85.47 | 89.78 | +0.66 | FCX ahead |
| 2025-06-11 | 85.12 | 90.01 | +0.57 | FCX ahead |
| 2025-06-10 | 87.57 | 90.99 | +0.79 | FCX ahead |
| 2025-06-09 | 87.88 | 90.74 | +0.87 | FCX ahead |
| 2025-06-06 | 86.09 | 90.32 | +0.67 | FCX ahead |
| 2025-06-05 | 86.53 | 90.64 | +0.68 | FCX ahead |
| 2025-06-04 | 84.81 | 89.58 | +0.57 | FCX ahead |
| 2025-06-03 | 83.52 | 90.04 | +0.31 | near the usual relationship |
| 2025-06-02 | 83.33 | 91.16 | +0.12 | near the usual relationship |
| 2025-05-30 | 79.87 | 90.93 | -0.38 | near the usual relationship |
| 2025-05-29 | 81.01 | 92.11 | -0.37 | near the usual relationship |
| 2025-05-28 | 80.72 | 91.72 | -0.37 | near the usual relationship |
| 2025-05-27 | 82.27 | 93.02 | -0.31 | near the usual relationship |
| 2025-05-23 | 80.99 | 94.22 | -0.66 | RIO ahead |
| 2025-05-22 | 78.25 | 93.51 | -1.00 | RIO ahead |
| 2025-05-21 | 78.89 | 94.83 | -1.08 | RIO ahead |
| 2025-05-20 | 79.70 | 95.23 | -1.01 | RIO ahead |
| 2025-05-19 | 80.53 | 95.46 | -0.92 | RIO ahead |
| 2025-05-16 | 78.91 | 95.84 | -1.23 | RIO ahead |
| 2025-05-15 | 79.85 | 96.01 | -1.12 | RIO ahead |
| 2025-05-14 | 81.07 | 94.91 | -0.80 | RIO ahead |
| 2025-05-13 | 81.92 | 95.27 | -0.72 | RIO ahead |
| 2025-05-12 | 81.17 | 93.96 | -0.67 | RIO ahead |
| 2025-05-09 | 78.58 | 91.77 | -0.79 | RIO ahead |
| 2025-05-08 | 77.79 | 90.54 | -0.75 | RIO ahead |
| 2025-05-07 | 76.84 | 91.83 | -1.08 | RIO ahead |
| 2025-05-06 | 78.70 | 91.49 | -0.75 | RIO ahead |
| 2025-05-05 | 77.52 | 91.14 | -0.90 | RIO ahead |
| 2025-05-02 | 78.04 | 91.34 | -0.85 | RIO ahead |
| 2025-05-01 | 75.57 | 89.58 | -1.01 | RIO ahead |
| 2025-04-30 | 74.78 | 90.88 | -1.32 | RIO ahead |
| 2025-04-29 | 77.15 | 93.15 | -1.25 | RIO ahead |
| 2025-04-28 | 77.29 | 93.13 | -1.24 | RIO ahead |
| 2025-04-25 | 77.52 | 92.66 | -1.15 | RIO ahead |
| 2025-04-24 | 78.10 | 94.38 | -1.29 | RIO ahead |
| 2025-04-23 | 73.04 | 92.11 | -1.83 | RIO ahead |
| 2025-04-22 | 70.69 | 91.22 | -2.14 | RIO ahead |
| 2025-04-21 | 68.39 | 89.46 | -2.34 | RIO ahead |
| 2025-04-17 | 68.29 | 89.00 | -2.32 | RIO ahead |
| 2025-04-16 | 69.16 | 87.45 | -1.97 | RIO ahead |
| 2025-04-15 | 69.26 | 87.61 | -1.99 | RIO ahead |
| 2025-04-14 | 70.05 | 87.22 | -1.81 | RIO ahead |
| 2025-04-11 | 69.22 | 87.00 | -1.95 | RIO ahead |
| 2025-04-10 | 65.07 | 83.95 | -2.31 | RIO ahead |
| 2025-04-09 | 70.03 | 85.08 | -1.56 | RIO ahead |
| 2025-04-08 | 60.63 | 80.05 | -2.66 | RIO ahead |
| 2025-04-07 | 63.03 | 83.48 | -2.74 | RIO ahead |
| 2025-04-04 | 60.50 | 83.64 | -3.38 | RIO ahead |
| 2025-04-03 | 69.55 | 89.40 | -2.46 | RIO ahead |
| 2025-04-02 | 79.29 | 91.65 | -1.04 | RIO ahead |
| 2025-04-01 | 79.14 | 92.15 | -1.15 | RIO ahead |
| 2025-03-31 | 78.58 | 91.92 | -1.22 | RIO ahead |
| 2025-03-28 | 79.74 | 93.38 | -1.25 | RIO ahead |
| 2025-03-27 | 82.98 | 95.38 | -1.00 | RIO ahead |
| 2025-03-26 | 86.11 | 96.19 | -0.62 | RIO ahead |
| 2025-03-25 | 89.27 | 96.10 | -0.13 | near the usual relationship |
| 2025-03-24 | 86.36 | 95.12 | -0.44 | near the usual relationship |
| 2025-03-21 | 83.54 | 94.84 | -0.85 | RIO ahead |
| 2025-03-20 | 84.47 | 96.27 | -0.91 | RIO ahead |
| 2025-03-19 | 83.89 | 97.71 | -1.21 | RIO ahead |
| 2025-03-18 | 82.69 | 98.13 | -1.48 | RIO ahead |
| 2025-03-17 | 82.00 | 97.11 | -1.46 | RIO ahead |
| 2025-03-14 | 80.64 | 96.45 | -1.61 | RIO ahead |
| 2025-03-13 | 78.00 | 93.64 | -1.67 | RIO ahead |
| 2025-03-12 | 76.34 | 92.99 | -1.88 | RIO ahead |
| 2025-03-11 | 74.47 | 94.63 | -2.49 | RIO ahead |
| 2025-03-10 | 71.61 | 95.18 | -3.14 | RIO ahead |
| 2025-03-07 | 76.67 | 95.33 | -2.20 | RIO ahead |
| 2025-03-06 | 78.21 | 97.83 | -2.29 | RIO ahead |
| 2025-03-05 | 79.20 | 97.54 | -2.06 | RIO ahead |
| 2025-03-04 | 72.44 | 95.15 | -2.98 | RIO ahead |
| 2025-03-03 | 73.74 | 93.41 | -2.47 | RIO ahead |
| 2025-02-28 | 76.61 | 92.66 | -1.81 | RIO ahead |
| 2025-02-27 | 77.67 | 92.89 | -1.64 | RIO ahead |
| 2025-02-26 | 78.77 | 94.22 | -1.64 | RIO ahead |
| 2025-02-25 | 76.30 | 95.03 | -2.19 | RIO ahead |
| 2025-02-24 | 77.02 | 95.99 | -2.20 | RIO ahead |
| 2025-02-21 | 76.75 | 97.20 | -2.42 | RIO ahead |
| 2025-02-20 | 80.86 | 98.36 | -1.84 | RIO ahead |
| 2025-02-19 | 80.05 | 96.02 | -1.63 | RIO ahead |
| 2025-02-18 | 81.57 | 98.19 | -1.65 | RIO ahead |
| 2025-02-14 | 81.92 | 96.94 | -1.40 | RIO ahead |
| 2025-02-13 | 83.48 | 96.83 | -1.11 | RIO ahead |
| 2025-02-12 | 78.79 | 94.92 | -1.58 | RIO ahead |
| 2025-02-11 | 78.02 | 94.32 | -1.60 | RIO ahead |
| 2025-02-10 | 79.83 | 95.24 | -1.42 | RIO ahead |
| 2025-02-07 | 79.33 | 94.78 | -1.43 | RIO ahead |
| 2025-02-06 | 77.11 | 95.15 | -1.83 | RIO ahead |
| 2025-02-05 | 76.13 | 93.90 | -1.82 | RIO ahead |
| 2025-02-04 | 75.72 | 93.64 | -1.84 | RIO ahead |
| 2025-02-03 | 74.43 | 91.57 | -1.76 | RIO ahead |
| 2025-01-31 | 74.41 | 92.43 | -1.87 | RIO ahead |
| 2025-01-30 | 76.05 | 93.19 | -1.69 | RIO ahead |
| 2025-01-29 | 75.30 | 91.37 | -1.55 | RIO ahead |
| 2025-01-28 | 74.39 | 91.65 | -1.73 | RIO ahead |
| 2025-01-27 | 76.11 | 94.81 | -1.85 | RIO ahead |
| 2025-01-24 | 78.48 | 95.00 | -1.49 | RIO ahead |
| 2025-01-23 | 79.91 | 94.19 | -1.15 | RIO ahead |
| 2025-01-22 | 81.13 | 93.51 | -0.87 | RIO ahead |
| 2025-01-21 | 83.64 | 94.45 | -0.62 | RIO ahead |
| 2025-01-17 | 83.48 | 93.48 | -0.51 | RIO ahead |
| 2025-01-16 | 83.08 | 91.48 | -0.30 | near the usual relationship |
| 2025-01-15 | 83.08 | 92.50 | -0.42 | near the usual relationship |
| 2025-01-14 | 81.98 | 92.38 | -0.55 | RIO ahead |
| 2025-01-13 | 81.80 | 91.06 | -0.41 | near the usual relationship |
| 2025-01-10 | 80.90 | 90.02 | -0.39 | near the usual relationship |
| 2025-01-08 | 82.48 | 89.70 | -0.13 | near the usual relationship |
| 2025-01-07 | 80.41 | 89.03 | -0.32 | near the usual relationship |
| 2025-01-06 | 80.05 | 89.32 | -0.39 | near the usual relationship |
| 2025-01-03 | 78.27 | 89.66 | -0.67 | RIO ahead |
| 2025-01-02 | 78.62 | 89.92 | -0.64 | RIO ahead |
| 2024-12-31 | 79.04 | 89.98 | -0.58 | RIO ahead |
| 2024-12-30 | 79.20 | 89.64 | -0.51 | RIO ahead |
| 2024-12-27 | 80.66 | 90.28 | -0.39 | near the usual relationship |
| 2024-12-26 | 81.34 | 90.65 | -0.33 | near the usual relationship |
| 2024-12-24 | 81.40 | 90.58 | -0.31 | near the usual relationship |
| 2024-12-23 | 81.47 | 90.62 | -0.30 | near the usual relationship |
| 2024-12-20 | 80.66 | 89.72 | -0.29 | near the usual relationship |
| 2024-12-19 | 79.37 | 89.86 | -0.46 | near the usual relationship |
| 2024-12-18 | 80.34 | 90.79 | -0.43 | near the usual relationship |
| 2024-12-17 | 84.31 | 94.03 | -0.30 | near the usual relationship |
| 2024-12-16 | 84.56 | 93.73 | -0.23 | near the usual relationship |
| 2024-12-13 | 86.32 | 95.18 | -0.17 | near the usual relationship |
| 2024-12-12 | 87.34 | 97.08 | -0.23 | near the usual relationship |
| 2024-12-11 | 89.25 | 99.42 | -0.25 | near the usual relationship |
| 2024-12-10 | 88.56 | 99.17 | -0.29 | near the usual relationship |
| 2024-12-09 | 90.76 | 99.28 | -0.05 | near the usual relationship |
| 2024-12-06 | 87.32 | 95.03 | +0.01 | near the usual relationship |
| 2024-12-05 | 88.81 | 97.18 | -0.04 | near the usual relationship |
| 2024-12-04 | 89.33 | 96.99 | +0.05 | near the usual relationship |
| 2024-12-03 | 90.97 | 97.17 | +0.20 | near the usual relationship |
| 2024-12-02 | 90.58 | 96.80 | +0.20 | near the usual relationship |
| 2024-11-29 | 91.74 | 96.14 | +0.39 | near the usual relationship |
| 2024-11-27 | 90.83 | 95.35 | +0.38 | near the usual relationship |
| 2024-11-26 | 90.24 | 94.91 | +0.37 | near the usual relationship |
| 2024-11-25 | 92.11 | 96.36 | +0.42 | near the usual relationship |
| 2024-11-22 | 90.74 | 95.39 | +0.39 | near the usual relationship |
| 2024-11-21 | 90.83 | 95.73 | +0.37 | near the usual relationship |
| 2024-11-20 | 90.70 | 95.46 | +0.39 | near the usual relationship |
| 2024-11-19 | 91.57 | 95.52 | +0.47 | near the usual relationship |
| 2024-11-18 | 90.39 | 95.04 | +0.41 | near the usual relationship |
| 2024-11-15 | 88.63 | 93.30 | +0.41 | near the usual relationship |
| 2024-11-14 | 89.81 | 92.46 | +0.60 | FCX ahead |
| 2024-11-13 | 89.50 | 92.75 | +0.55 | FCX ahead |
| 2024-11-12 | 90.49 | 93.64 | +0.57 | FCX ahead |
| 2024-11-11 | 93.19 | 95.78 | +0.63 | FCX ahead |
| 2024-11-08 | 96.22 | 98.58 | +0.66 | FCX ahead |
| 2024-11-07 | 100.83 | 103.23 | +0.68 | FCX ahead |
| 2024-11-06 | 97.28 | 99.95 | +0.65 | FCX ahead |
| 2024-11-05 | 97.53 | 100.21 | +0.66 | FCX ahead |
| 2024-11-04 | 96.04 | 99.46 | +0.60 | FCX ahead |
| 2024-11-01 | 94.62 | 99.95 | +0.45 | near the usual relationship |
| 2024-10-31 | 93.44 | 99.28 | +0.41 | near the usual relationship |
| 2024-10-30 | 95.41 | 100.83 | +0.46 | near the usual relationship |
| 2024-10-29 | 96.66 | 101.87 | +0.49 | near the usual relationship |
| 2024-10-28 | 96.99 | 101.25 | +0.57 | FCX ahead |
| 2024-10-25 | 96.72 | 99.88 | +0.66 | FCX ahead |
| 2024-10-24 | 97.22 | 98.85 | +0.78 | FCX ahead |
| 2024-10-23 | 99.46 | 98.67 | +0.98 | FCX ahead |
| 2024-10-22 | 100.73 | 100.18 | +0.97 | FCX ahead |
| 2024-10-21 | 99.50 | 99.37 | +0.94 | FCX ahead |
| 2024-10-18 | 100.00 | 100.00 | +0.94 | FCX ahead |
One-day company-specific moves (4+ standard deviations, which block ideas for 10 sessions): Apr 3, 2025 (FCX -12.3%, RIO -2.5%); Apr 9, 2025 (FCX +15.5%, RIO +6.3%); Sep 24, 2025 (FCX -16.9%, RIO +0.5%); Apr 23, 2026 (FCX -12.6%, RIO -1.4%). Upcoming earnings: FCX Oct 27, 2026 (pre-market).
Paired trades
The shared paper book and the replay, kept apart
Forward paper record
No paper position on this pair yet.
Historical simulation (a diagnostic, same rules)
No simulated trade through Oct 20, 2026: the pair rarely passed every test while 2 standard deviations apart. One simulated trade is still open (entered Aug 25, 2026).
Per $10,000 a leg. A replay on today's companies cannot prove an edge.
The companies
FCX and RIO at a glance
FCX Freeport-McMoRan Inc.
- Listing
- NYSE · SEC CIK 831259
- Industry
- Metal Mining · SIC 1000 Metal Mining
- Market value
- $100.2B
- Price history
- 2,521 daily closes, Oct 12, 2016 to Oct 22, 2026
RIO Rio Tinto Plc
- Listing
- NYSE · SEC CIK 863064
- Industry
- Metal Mining · SIC 1000 Metal Mining
- Market value
- $112.4B
- 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 FCX and RIO
| Pair | Status | Ahead now | Industry |
|---|---|---|---|
| SCCO / RIO | Watchlist | SCCO by 1.67 sd | Metal Mining |
| BHP / RIO | Watchlist | BHP by 1.61 sd | SIC 1000 Metal Mining |
| SCCO / FCX | Watchlist | FCX by 0.62 sd | Metal Mining |
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.
