Metal Mining

Rio Tinto Plc vs Southern Copper Corporation

WatchlistRIO / SCCOPrices through Oct 22, 2026

Why these are rivals: #1 and #2 by market value ($168B vs $112B) in Nasdaq's "Metal Mining" industry; SEC SIC 1000 / 1000 (same major group); #2 and #3 by market value ($168B vs $112B) with SEC SIC 1000 (Metal Mining).

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: -1.93 (needs <= -2.873 (5% critical value))
Business leadership

Business size

Annual revenue reported to the SEC. Scale, not market share.

YearRIOSCCOLarger
2025-$13.4B-
2024-$11.4B-
2023-$9.9B-
2022-$10.0B-
2021-$10.9B-
2020-$8.0B-

Market value: RIO $112.4B, SCCO $168.4B.

Stock leadership

SCCO is ahead now

Measured against the pair's own last 252 trading days.

SCCO leads RIO by 1.67 standard deviations: +12.8% over its usual price ratio. 2 lead switches in the last year.

Price change3 mo6 mo12 mo
RIO-7.8%-14.9%+23.1%
SCCO+2.4%+0.7%+43.1%
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: 0.75 (needs >= 0.60)
Fail
Mean reversion: ADF t-statistic of the spread: -1.93 (needs <= -2.873 (5% critical value))
Pass
Speed: half-life of the spread, sessions: 18.34 (needs <= 63)
Data
Both stocks current
The twins over two years

Prices side by side, and the gap between them

RIO Rio Tinto Plc SCCO Southern Copper CorporationPrice index, 100 = 2024-10-18. Tint = which stock is ahead of the pair's usual 1-year relationship (z beyond +/-0.5).
100150200Oct 2024Oct 2025Oct 2026RIO 129SCCO 163
Spread z-score: RIO relative to SCCO, against the 252 sessions before each day. Above 0: RIO ahead; below 0: SCCO ahead. Lines at +/-2 (idea) and +/-4 (stop).
-4stop-2idea0+2idea+4stopOct 2024Oct 2025Oct 2026
Data table (504 sessions)
DateRIO indexSCCO indexzAhead
2026-10-22128.73162.61-1.67SCCO ahead
2026-10-21132.99175.44-2.31SCCO ahead
2026-10-20134.88179.22-2.45SCCO ahead
2026-10-19136.93178.72-2.23SCCO ahead
2026-10-16138.19177.60-2.03SCCO ahead
2026-10-15138.02178.64-2.16SCCO ahead
2026-10-14139.61177.75-1.94SCCO ahead
2026-10-13142.38183.72-2.17SCCO ahead
2026-10-12144.28184.84-2.09SCCO ahead
2026-10-09145.01185.31-2.07SCCO ahead
2026-10-08142.81175.96-1.53SCCO ahead
2026-10-07142.53177.65-1.72SCCO ahead
2026-10-06146.71180.92-1.57SCCO ahead
2026-10-05146.34181.83-1.71SCCO ahead
2026-10-02144.14182.05-1.98SCCO ahead
2026-10-01142.09176.46-1.74SCCO ahead
2026-09-30144.08179.49-1.81SCCO ahead
2026-09-29144.06179.41-1.82SCCO ahead
2026-09-28144.45179.48-1.81SCCO ahead
2026-09-25144.68180.62-1.90SCCO ahead
2026-09-24144.54178.55-1.75SCCO ahead
2026-09-23145.73178.87-1.66SCCO ahead
2026-09-22149.16182.59-1.63SCCO ahead
2026-09-21148.47175.43-1.07SCCO ahead
2026-09-18148.97173.34-0.83SCCO ahead
2026-09-17150.00173.70-0.76SCCO ahead
2026-09-16146.56168.18-0.63SCCO ahead
2026-09-15148.81167.75-0.35near the usual relationship
2026-09-14149.39166.83-0.21near the usual relationship
2026-09-11152.94171.38-0.27near the usual relationship
2026-09-10152.07171.96-0.42near the usual relationship
2026-09-09158.72185.35-0.91SCCO ahead
2026-09-08158.86184.73-0.85SCCO ahead
2026-09-04158.00176.05-0.22near the usual relationship
2026-09-03157.34176.73-0.35near the usual relationship
2026-09-02157.21180.92-0.71SCCO ahead
2026-09-01155.84178.57-0.65SCCO ahead
2026-08-31156.82185.00-1.06SCCO ahead
2026-08-28158.05185.83-1.02SCCO ahead
2026-08-27160.31191.57-1.24SCCO ahead
2026-08-26160.19189.33-1.10SCCO ahead
2026-08-25163.42194.60-1.20SCCO ahead
2026-08-24160.34189.77-1.12SCCO ahead
2026-08-21161.11191.32-1.17SCCO ahead
2026-08-20156.32176.02-0.48near the usual relationship
2026-08-19153.67172.44-0.44near the usual relationship
2026-08-18147.93166.34-0.47near the usual relationship
2026-08-17148.73170.10-0.69SCCO ahead
2026-08-14146.39163.52-0.40near the usual relationship
2026-08-13150.24166.16-0.29near the usual relationship
2026-08-12154.87172.62-0.39near the usual relationship
2026-08-11154.51172.26-0.40near the usual relationship
2026-08-10155.92177.25-0.64SCCO ahead
2026-08-07154.68176.32-0.68SCCO ahead
2026-08-06152.46170.97-0.49near the usual relationship
2026-08-05155.31174.49-0.52SCCO ahead
2026-08-04151.48172.86-0.71SCCO ahead
2026-08-03146.73164.67-0.52SCCO ahead
2026-07-31148.18161.83-0.21near the usual relationship
2026-07-30148.68163.86-0.32near the usual relationship
2026-07-29143.30155.42-0.15near the usual relationship
2026-07-28140.21158.51-0.62SCCO ahead
2026-07-27140.68158.83-0.61SCCO ahead
2026-07-24139.57158.80-0.70SCCO ahead
2026-07-23140.01161.40-0.86SCCO ahead
2026-07-22141.19173.14-1.55SCCO ahead
2026-07-21138.54166.53-1.34SCCO ahead
2026-07-20136.28155.07-0.74SCCO ahead
2026-07-17137.93152.77-0.45near the usual relationship
2026-07-16138.72155.59-0.59SCCO ahead
2026-07-15143.24160.80-0.61SCCO ahead
2026-07-14142.73161.54-0.70SCCO ahead
2026-07-13137.47154.59-0.64SCCO ahead
2026-07-10138.53155.74-0.64SCCO ahead
2026-07-09136.92154.50-0.69SCCO ahead
2026-07-08135.86148.10-0.31near the usual relationship
2026-07-07139.61150.35-0.18near the usual relationship
2026-07-06143.18154.00-0.17near the usual relationship
2026-07-02144.46152.36+0.04near the usual relationship
2026-07-01142.82149.51+0.12near the usual relationship
2026-06-30145.24154.35-0.05near the usual relationship
2026-06-29144.26149.20+0.25near the usual relationship
2026-06-26143.42151.69+0.00near the usual relationship
2026-06-25145.52154.77-0.06near the usual relationship
2026-06-24143.86152.21-0.01near the usual relationship
2026-06-23146.24158.17-0.25near the usual relationship
2026-06-22152.02168.21-0.50SCCO ahead
2026-06-18153.12170.89-0.60SCCO ahead
2026-06-17157.08169.78-0.26near the usual relationship
2026-06-16161.78172.30-0.10near the usual relationship
2026-06-15162.01171.14-0.02near the usual relationship
2026-06-12161.18168.10+0.11near the usual relationship
2026-06-11158.57161.35+0.37near the usual relationship
2026-06-10151.56148.59+0.76RIO ahead
2026-06-09155.17155.16+0.55RIO ahead
2026-06-08154.42151.00+0.78RIO ahead
2026-06-05154.05153.21+0.60RIO ahead
2026-06-04161.26171.91-0.14near the usual relationship
2026-06-03165.02174.13-0.04near the usual relationship
2026-06-02170.85178.36+0.07near the usual relationship
2026-06-01166.71172.38+0.16near the usual relationship
2026-05-29162.78169.44+0.08near the usual relationship
2026-05-28162.90172.61-0.11near the usual relationship
2026-05-27163.11166.30+0.28near the usual relationship
2026-05-26163.62168.18+0.19near the usual relationship
2026-05-22159.47159.14+0.47near the usual relationship
2026-05-21160.28158.65+0.54RIO ahead
2026-05-20158.06154.20+0.68RIO ahead
2026-05-19154.41149.69+0.73RIO ahead
2026-05-18158.09152.26+0.78RIO ahead
2026-05-15158.64156.58+0.54RIO ahead
2026-05-14167.67166.96+0.44near the usual relationship
2026-05-13171.42169.96+0.48near the usual relationship
2026-05-12167.53169.84+0.26near the usual relationship
2026-05-11165.09164.07+0.44near the usual relationship
2026-05-08161.23164.12+0.20near the usual relationship
2026-05-07157.76159.03+0.29near the usual relationship
2026-05-06161.43162.90+0.27near the usual relationship
2026-05-05153.76151.49+0.49near the usual relationship
2026-05-04150.90147.30+0.57RIO ahead
2026-05-01153.89151.62+0.47near the usual relationship
2026-04-30153.73152.07+0.43near the usual relationship
2026-04-29147.63149.19+0.23near the usual relationship
2026-04-28150.69151.01+0.30near the usual relationship
2026-04-27152.92157.77+0.04near the usual relationship
2026-04-24152.40159.81-0.12near the usual relationship
2026-04-23151.24161.43-0.28near the usual relationship
2026-04-22153.43166.26-0.42near the usual relationship
2026-04-21149.51162.56-0.46near the usual relationship
2026-04-20152.74168.96-0.61SCCO ahead
2026-04-17153.23172.12-0.76SCCO ahead
2026-04-16152.56166.74-0.52SCCO ahead
2026-04-15150.80167.67-0.68SCCO ahead
2026-04-14151.27171.28-0.84SCCO ahead
2026-04-13151.77173.94-0.95SCCO ahead
2026-04-10150.34170.56-0.87SCCO ahead
2026-04-09148.61166.56-0.78SCCO ahead
2026-04-08150.63165.78-0.63SCCO ahead
2026-04-07144.83154.09-0.34near the usual relationship
2026-04-06143.83156.48-0.54SCCO ahead
2026-04-02144.51157.51-0.56SCCO ahead
2026-04-01145.06157.62-0.54SCCO ahead
2026-03-31142.73152.40-0.39near the usual relationship
2026-03-30135.89141.08-0.16near the usual relationship
2026-03-27132.56143.55-0.52SCCO ahead
2026-03-26131.26141.51-0.49near the usual relationship
2026-03-25133.94146.58-0.62SCCO ahead
2026-03-24132.76141.61-0.41near the usual relationship
2026-03-23131.33141.36-0.49near the usual relationship
2026-03-20127.22135.26-0.39near the usual relationship
2026-03-19131.04141.55-0.53SCCO ahead
2026-03-18134.21147.67-0.69SCCO ahead
2026-03-17137.39156.79-1.00SCCO ahead
2026-03-16137.48156.60-0.99SCCO ahead
2026-03-13134.38151.31-0.91SCCO ahead
2026-03-12138.77159.93-1.11SCCO ahead
2026-03-11140.88170.08-1.50SCCO ahead
2026-03-10140.27173.75-1.73SCCO ahead
2026-03-09138.23168.86-1.63SCCO ahead
2026-03-06138.02163.84-1.40SCCO ahead
2026-03-05142.85169.95-1.43SCCO ahead
2026-03-04147.26183.05-1.81SCCO ahead
2026-03-03145.82182.67-1.89SCCO ahead
2026-03-02152.40193.84-2.04SCCO ahead
2026-02-27151.99193.36-2.07SCCO ahead
2026-02-26151.61191.05-2.01SCCO ahead
2026-02-25154.19190.61-1.87SCCO ahead
2026-02-24150.11186.62-1.94SCCO ahead
2026-02-23149.43183.39-1.85SCCO ahead
2026-02-20148.55178.04-1.66SCCO ahead
2026-02-19147.40171.90-1.44SCCO ahead
2026-02-18151.36170.65-1.16SCCO ahead
2026-02-17148.23166.52-1.13SCCO ahead
2026-02-13150.05175.38-1.49SCCO ahead
2026-02-12149.80175.24-1.51SCCO ahead
2026-02-11152.26182.92-1.76SCCO ahead
2026-02-10148.78176.17-1.65SCCO ahead
2026-02-09148.18184.48-2.11SCCO ahead
2026-02-06142.92177.18-2.10SCCO ahead
2026-02-05139.41167.81-1.86SCCO ahead
2026-02-04147.61173.58-1.67SCCO ahead
2026-02-03147.44190.82-2.57SCCO ahead
2026-02-02141.55170.77-1.96SCCO ahead
2026-01-30139.27168.57-2.01SCCO ahead
2026-01-29145.55184.17-2.46SCCO ahead
2026-01-28142.85175.54-2.22SCCO ahead
2026-01-27142.15172.58-2.13SCCO ahead
2026-01-26138.42166.88-2.09SCCO ahead
2026-01-23138.36163.24-1.91SCCO ahead
2026-01-22133.57156.25-1.85SCCO ahead
2026-01-21135.92163.03-2.12SCCO ahead
2026-01-20131.09164.97-2.63SCCO ahead
2026-01-16130.25160.27-2.45SCCO ahead
2026-01-15132.11162.06-2.46SCCO ahead
2026-01-14131.40159.66-2.40SCCO ahead
2026-01-13127.89154.45-2.37SCCO ahead
2026-01-12126.81155.89-2.60SCCO ahead
2026-01-09124.13151.04-2.53SCCO ahead
2026-01-08128.81142.21-1.53SCCO ahead
2026-01-07129.87140.03-1.29SCCO ahead
2026-01-06130.40141.79-1.39SCCO ahead
2026-01-05127.31136.75-1.27SCCO ahead
2026-01-02124.59131.70-1.11SCCO ahead
2025-12-31122.44127.08-0.92SCCO ahead
2025-12-30123.19128.86-1.01SCCO ahead
2025-12-29123.01128.70-1.02SCCO ahead
2025-12-26125.83132.44-1.09SCCO ahead
2025-12-24123.76131.20-1.18SCCO ahead
2025-12-23123.88131.11-1.17SCCO ahead
2025-12-22122.55130.36-1.23SCCO ahead
2025-12-19119.83127.55-1.25SCCO ahead
2025-12-18118.77126.02-1.22SCCO ahead
2025-12-17118.10125.29-1.23SCCO ahead
2025-12-16116.26124.24-1.32SCCO ahead
2025-12-15116.00127.42-1.64SCCO ahead
2025-12-12115.76126.14-1.56SCCO ahead
2025-12-11117.41130.76-1.83SCCO ahead
2025-12-10116.65127.53-1.64SCCO ahead
2025-12-09113.83124.36-1.64SCCO ahead
2025-12-08111.72124.92-1.93SCCO ahead
2025-12-05111.78124.37-1.89SCCO ahead
2025-12-04112.81123.96-1.77SCCO ahead
2025-12-03113.65122.75-1.59SCCO ahead
2025-12-02110.68119.49-1.60SCCO ahead
2025-12-01110.11119.36-1.66SCCO ahead
2025-11-28110.08119.38-1.68SCCO ahead
2025-11-26110.47117.83-1.50SCCO ahead
2025-11-25108.74114.37-1.34SCCO ahead
2025-11-24107.82112.31-1.24SCCO ahead
2025-11-21107.08109.56-1.03SCCO ahead
2025-11-20105.23106.31-0.88SCCO ahead
2025-11-19106.23111.05-1.30SCCO ahead
2025-11-18106.70109.96-1.13SCCO ahead
2025-11-17107.85112.53-1.29SCCO ahead
2025-11-14108.06115.76-1.62SCCO ahead
2025-11-13108.69116.94-1.69SCCO ahead
2025-11-12108.80121.15-2.13SCCO ahead
2025-11-11107.59122.69-2.45SCCO ahead
2025-11-10107.54123.55-2.59SCCO ahead
2025-11-07106.07121.00-2.53SCCO ahead
2025-11-06105.98121.56-2.64SCCO ahead
2025-11-05105.66120.39-2.59SCCO ahead
2025-11-04103.87115.85-2.35SCCO ahead
2025-11-03107.67122.49-2.65SCCO ahead
2025-10-31109.76122.94-2.47SCCO ahead
2025-10-30110.47124.10-2.55SCCO ahead
2025-10-29111.05125.49-2.66SCCO ahead
2025-10-28110.14122.55-2.47SCCO ahead
2025-10-27108.52117.79-2.15SCCO ahead
2025-10-24107.93114.56-1.85SCCO ahead
2025-10-23108.05113.70-1.73SCCO ahead
2025-10-22106.73112.42-1.76SCCO ahead
2025-10-21104.56113.66-2.22SCCO ahead
2025-10-20105.94119.52-2.79SCCO ahead
2025-10-17104.07114.98-2.53SCCO ahead
2025-10-16105.19118.04-2.80SCCO ahead
2025-10-15105.35116.83-2.66SCCO ahead
2025-10-14104.38115.81-2.70SCCO ahead
2025-10-13104.28117.98-3.05SCCO ahead
2025-10-10100.12110.81-2.76SCCO ahead
2025-10-09102.51115.65-3.12SCCO ahead
2025-10-08103.58117.39-3.26SCCO ahead
2025-10-07101.36112.25-2.94SCCO ahead
2025-10-06102.48115.13-3.25SCCO ahead
2025-10-03101.15113.63-3.33SCCO ahead
2025-10-02101.38111.00-2.96SCCO ahead
2025-10-01101.42108.63-2.61SCCO ahead
2025-09-30100.99107.49-2.53SCCO ahead
2025-09-29100.86107.25-2.56SCCO ahead
2025-09-2699.14103.63-2.27SCCO ahead
2025-09-25100.11104.48-2.27SCCO ahead
2025-09-2497.72105.85-3.01SCCO ahead
2025-09-2397.2697.66-1.62SCCO ahead
2025-09-2297.3898.71-1.81SCCO ahead
2025-09-1995.4497.42-1.97SCCO ahead
2025-09-1894.8395.00-1.63SCCO ahead
2025-09-1796.3794.67-1.27SCCO ahead
2025-09-1697.0696.06-1.42SCCO ahead
2025-09-1597.4997.38-1.61SCCO ahead
2025-09-1295.5394.05-1.34SCCO ahead
2025-09-1195.6993.05-1.11SCCO ahead
2025-09-1095.0190.43-0.70SCCO ahead
2025-09-0994.6688.49-0.35near the usual relationship
2025-09-0897.4991.58-0.45near the usual relationship
2025-09-0597.8791.21-0.30near the usual relationship
2025-09-0495.5689.30-0.35near the usual relationship
2025-09-0395.5989.40-0.36near the usual relationship
2025-09-0294.6986.14+0.17near the usual relationship
2025-08-2995.9685.11+0.67RIO ahead
2025-08-2896.2185.67+0.60RIO ahead
2025-08-2795.0385.22+0.47near the usual relationship
2025-08-2694.7886.61+0.10near the usual relationship
2025-08-2595.3685.93+0.38near the usual relationship
2025-08-2295.9186.40+0.39near the usual relationship
2025-08-2193.7983.02+0.73RIO ahead
2025-08-2092.7582.99+0.53RIO ahead
2025-08-1992.7083.48+0.41near the usual relationship
2025-08-1892.3584.92+0.01near the usual relationship
2025-08-1593.7084.92+0.29near the usual relationship
2025-08-1495.6586.47+0.34near the usual relationship
2025-08-1397.2688.13+0.30near the usual relationship
2025-08-1296.5487.02+0.40near the usual relationship
2025-08-1195.0785.14+0.53RIO ahead
2025-08-0894.6588.66-0.34near the usual relationship
2025-08-0792.9886.37-0.18near the usual relationship
2025-08-0691.9484.21+0.09near the usual relationship
2025-08-0591.3483.73+0.07near the usual relationship
2025-08-0491.8082.42+0.48near the usual relationship
2025-08-0191.2681.19+0.66RIO ahead
2025-07-3191.4583.40+0.18near the usual relationship
2025-07-3091.0280.19+0.85RIO ahead
2025-07-2995.2785.62+0.47near the usual relationship
2025-07-2895.1586.01+0.36near the usual relationship
2025-07-2596.5486.97+0.43near the usual relationship
2025-07-2497.6688.11+0.41near the usual relationship
2025-07-2398.8789.31+0.39near the usual relationship
2025-07-2298.4287.82+0.63RIO ahead
2025-07-2194.9486.85+0.15near the usual relationship
2025-07-1892.6385.42+0.00near the usual relationship
2025-07-1791.8585.48-0.17near the usual relationship
2025-07-1691.3785.62-0.29near the usual relationship
2025-07-1589.4686.40-0.87SCCO ahead
2025-07-1491.5288.56-0.90SCCO ahead
2025-07-1193.4890.00-0.80SCCO ahead
2025-07-1091.9590.58-1.23SCCO ahead
2025-07-0989.8388.50-1.23SCCO ahead
2025-07-0889.8691.23-1.80SCCO ahead
2025-07-0788.2292.57-2.46SCCO ahead
2025-07-0390.3093.76-2.29SCCO ahead
2025-07-0292.0793.97-1.97SCCO ahead
2025-07-0189.2090.43-1.86SCCO ahead
2025-06-3089.2489.61-1.69SCCO ahead
2025-06-2789.8790.80-1.82SCCO ahead
2025-06-2689.6392.68-2.31SCCO ahead
2025-06-2586.7785.99-1.47SCCO ahead
2025-06-2487.5085.84-1.27SCCO ahead
2025-06-2387.3583.84-0.84SCCO ahead
2025-06-2085.5182.78-1.01SCCO ahead
2025-06-1887.1284.37-1.03SCCO ahead
2025-06-1787.2284.44-1.03SCCO ahead
2025-06-1689.2185.43-0.81SCCO ahead
2025-06-1388.7483.93-0.56SCCO ahead
2025-06-1289.7884.98-0.58SCCO ahead
2025-06-1190.0185.08-0.55SCCO ahead
2025-06-1090.9986.47-0.66SCCO ahead
2025-06-0990.7485.85-0.57SCCO ahead
2025-06-0690.3284.71-0.39near the usual relationship
2025-06-0590.6485.09-0.41near the usual relationship
2025-06-0489.5883.03-0.15near the usual relationship
2025-06-0390.0481.93+0.23near the usual relationship
2025-06-0291.1681.89+0.50RIO ahead
2025-05-3090.9380.52+0.79RIO ahead
2025-05-2992.1181.83+0.73RIO ahead
2025-05-2891.7281.26+0.79RIO ahead
2025-05-2793.0282.52+0.77RIO ahead
2025-05-2394.2281.79+1.21RIO ahead
2025-05-2293.5180.09+1.49RIO ahead
2025-05-2194.8380.54+1.67RIO ahead
2025-05-2095.2381.20+1.61RIO ahead
2025-05-1995.4681.16+1.68RIO ahead
2025-05-1695.8480.42+1.95RIO ahead
2025-05-1596.0181.67+1.69RIO ahead
2025-05-1494.9182.73+1.22RIO ahead
2025-05-1395.2782.63+1.33RIO ahead
2025-05-1293.9681.72+1.28RIO ahead
2025-05-0991.7779.17+1.46RIO ahead
2025-05-0890.5478.02+1.50RIO ahead
2025-05-0791.8377.47+1.95RIO ahead
2025-05-0691.4980.18+1.18RIO ahead
2025-05-0591.1478.43+1.57RIO ahead
2025-05-0291.3479.84+1.26RIO ahead
2025-05-0189.5879.57+0.94RIO ahead
2025-04-3090.8879.29+1.32RIO ahead
2025-04-2993.1582.26+1.08RIO ahead
2025-04-2893.1383.10+0.87RIO ahead
2025-04-2592.6683.51+0.67RIO ahead
2025-04-2494.3884.88+0.72RIO ahead
2025-04-2392.1181.71+1.00RIO ahead
2025-04-2291.2278.93+1.53RIO ahead
2025-04-2189.4676.74+1.72RIO ahead
2025-04-1789.0076.40+1.72RIO ahead
2025-04-1687.4576.34+1.39RIO ahead
2025-04-1587.6176.91+1.28RIO ahead
2025-04-1487.2277.65+1.00RIO ahead
2025-04-1187.0074.96+1.69RIO ahead
2025-04-1083.9572.49+1.66RIO ahead
2025-04-0985.0874.77+1.31RIO ahead
2025-04-0880.0566.99+2.35RIO ahead
2025-04-0783.4870.33+2.24RIO ahead
2025-04-0483.6469.43+2.60RIO ahead
2025-04-0389.4076.82+1.88RIO ahead
2025-04-0291.6583.58+0.61RIO ahead
2025-04-0192.1583.15+0.85RIO ahead
2025-03-3191.9282.78+0.89RIO ahead
2025-03-2893.3883.38+1.08RIO ahead
2025-03-2795.3885.78+0.94RIO ahead
2025-03-2696.1986.54+0.93RIO ahead
2025-03-2596.1089.88+0.09near the usual relationship
2025-03-2495.1288.26+0.27near the usual relationship
2025-03-2194.8488.94+0.04near the usual relationship
2025-03-2096.2787.88+0.62RIO ahead
2025-03-1997.7188.17+0.87RIO ahead
2025-03-1898.1387.51+1.13RIO ahead
2025-03-1797.1186.70+1.10RIO ahead
2025-03-1496.4585.15+1.31RIO ahead
2025-03-1393.6481.85+1.48RIO ahead
2025-03-1292.9980.02+1.77RIO ahead
2025-03-1194.6378.71+2.40RIO ahead
2025-03-1095.1878.35+2.49RIO ahead
2025-03-0795.3380.57+1.89RIO ahead
2025-03-0697.8380.44+2.31RIO ahead
2025-03-0597.5480.15+2.23RIO ahead
2025-03-0495.1576.10+2.62RIO ahead
2025-03-0393.4176.80+2.07RIO ahead
2025-02-2892.6678.77+1.48RIO ahead
2025-02-2792.8980.15+1.19RIO ahead
2025-02-2694.2282.60+0.91RIO ahead
2025-02-2595.0382.39+1.04RIO ahead
2025-02-2495.9982.29+1.17RIO ahead
2025-02-2197.2082.29+1.30RIO ahead
2025-02-2098.3686.64+0.72RIO ahead
2025-02-1996.0285.37+0.57RIO ahead
2025-02-1898.1986.30+0.69RIO ahead
2025-02-1496.9486.16+0.52RIO ahead
2025-02-1396.8386.66+0.41near the usual relationship
2025-02-1294.9283.49+0.59RIO ahead
2025-02-1194.3281.57+0.75RIO ahead
2025-02-1095.2485.95+0.25near the usual relationship
2025-02-0794.7885.67+0.22near the usual relationship
2025-02-0695.1583.80+0.48near the usual relationship
2025-02-0593.9082.75+0.45near the usual relationship
2025-02-0493.6482.60+0.42near the usual relationship
2025-02-0391.5779.65+0.55RIO ahead
2025-01-3192.4381.15+0.44near the usual relationship
2025-01-3093.1982.06+0.39near the usual relationship
2025-01-2991.3780.93+0.32near the usual relationship
2025-01-2891.6580.18+0.42near the usual relationship
2025-01-2794.8183.38+0.36near the usual relationship
2025-01-2495.0085.47+0.13near the usual relationship
2025-01-2394.1986.08-0.02near the usual relationship
2025-01-2293.5185.34-0.02near the usual relationship
2025-01-2194.4587.40-0.15near the usual relationship
2025-01-1793.4886.91-0.20near the usual relationship
2025-01-1691.4886.29-0.33near the usual relationship
2025-01-1592.5085.91-0.21near the usual relationship
2025-01-1492.3884.45-0.08near the usual relationship
2025-01-1391.0683.92-0.16near the usual relationship
2025-01-1090.0283.80-0.25near the usual relationship
2025-01-0889.7084.68-0.37near the usual relationship
2025-01-0789.0383.06-0.28near the usual relationship
2025-01-0689.3282.87-0.25near the usual relationship
2025-01-0389.6681.50-0.10near the usual relationship
2025-01-0289.9281.63-0.09near the usual relationship
2024-12-3189.9880.72-0.01near the usual relationship
2024-12-3089.6481.00-0.08near the usual relationship
2024-12-2790.2882.56-0.17near the usual relationship
2024-12-2690.6583.79-0.26near the usual relationship
2024-12-2490.5883.64-0.26near the usual relationship
2024-12-2390.6282.88-0.20near the usual relationship
2024-12-2089.7282.38-0.23near the usual relationship
2024-12-1989.8681.47-0.15near the usual relationship
2024-12-1890.7982.34-0.16near the usual relationship
2024-12-1794.0385.69-0.20near the usual relationship
2024-12-1693.7386.26-0.28near the usual relationship
2024-12-1395.1888.57-0.36near the usual relationship
2024-12-1297.0889.93-0.34near the usual relationship
2024-12-1199.4291.68-0.31near the usual relationship
2024-12-1099.1790.81-0.27near the usual relationship
2024-12-0999.2893.48-0.46near the usual relationship
2024-12-0695.0388.57-0.40near the usual relationship
2024-12-0597.1889.57-0.34near the usual relationship
2024-12-0496.9989.65-0.36near the usual relationship
2024-12-0397.1789.75-0.37near the usual relationship
2024-12-0296.8088.62-0.32near the usual relationship
2024-11-2996.1488.88-0.38near the usual relationship
2024-11-2795.3588.32-0.40near the usual relationship
2024-11-2694.9187.28-0.37near the usual relationship
2024-11-2596.3690.35-0.49near the usual relationship
2024-11-2295.3988.34-0.42near the usual relationship
2024-11-2195.7389.18-0.46near the usual relationship
2024-11-2095.4691.23-0.62SCCO ahead
2024-11-1995.5291.92-0.66SCCO ahead
2024-11-1895.0490.19-0.59SCCO ahead
2024-11-1593.3087.90-0.55SCCO ahead
2024-11-1492.4688.81-0.67SCCO ahead
2024-11-1392.7589.45-0.70SCCO ahead
2024-11-1293.6490.97-0.75SCCO ahead
2024-11-1195.7892.79-0.74SCCO ahead
2024-11-0898.5894.87-0.71SCCO ahead
2024-11-07103.23100.54-0.78SCCO ahead
2024-11-0699.9596.99-0.77SCCO ahead
2024-11-05100.21100.99-0.98SCCO ahead
2024-11-0499.4698.59-0.90SCCO ahead
2024-11-0199.9597.52-0.82SCCO ahead
2024-10-3199.2897.03-0.83SCCO ahead
2024-10-30100.8399.07-0.87SCCO ahead
2024-10-29101.87101.34-0.94SCCO ahead
2024-10-28101.25101.69-1.00SCCO ahead
2024-10-2599.88102.22-1.11SCCO ahead
2024-10-2498.85101.44-1.14SCCO ahead
2024-10-2398.67100.82-1.12SCCO ahead
2024-10-22100.18101.48-1.08SCCO ahead
2024-10-2199.3799.55-1.03SCCO ahead
2024-10-18100.00100.00-1.03SCCO ahead

One-day company-specific moves (4+ standard deviations, which block ideas for 10 sessions): Sep 24, 2025 (RIO +0.5%, SCCO +8.4%); Jan 9, 2026 (RIO -3.6%, SCCO +6.2%); Feb 4, 2026 (RIO +0.1%, SCCO -9.0%). Upcoming earnings: SCCO Oct 27, 2026 (not-supplied).

Paired trades

The shared paper book and the replay, kept apart

Forward paper record

No paper position on this pair yet.

Historical simulation (a diagnostic, same rules)

3 simulated trades to Oct 20, 2026: -2.84% per trade on average after costs, 1 won.

LegsEnteredExitedWhyDaysBefore costsCosts + borrowAfter costs
Long SCCO · Short RIOMar 4, 2025Mar 24, 2025converged20$1,612.59-$48.79$1,575.01 (+15.75%)
Long RIO · Short SCCOAug 27, 2020Oct 26, 2020divergence stop60-$1,298.73-$73.04-$1,445.55 (-14.46%)
Long RIO · Short SCCOFeb 27, 2018Mar 2, 2018divergence stop3-$915.31-$62.84-$981.84 (-9.82%)

Per $10,000 a leg. A replay on today's companies cannot prove an edge.

The companies

RIO and SCCO at a glance

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

SCCO Southern Copper Corporation

Listing
NYSE · SEC CIK 1001838
Industry
Metal Mining · SIC 1000 Metal Mining
Market value
$168.4B
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 →
PairStatusAhead nowIndustry
RIO / FCXWatchlistFCX by 1.87 sdMetal Mining
BHP / RIOWatchlistBHP by 1.61 sdSIC 1000 Metal Mining
SCCO / FCXWatchlistFCX by 0.62 sdMetal Mining
BHP / SCCOWatchlistneitherSIC 1000 Metal Mining

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Paper 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.