Water Supply

American Water Works Company Inc. vs Companhia de saneamento Basico Do Estado De Sao Paulo - Sabesp

WatchlistAWK / SBSPrices through Oct 22, 2026

Why these are rivals: #1 and #2 by market value ($27B vs $22B) in Nasdaq's "Water Supply" industry; SEC SIC 4941 / 4941 (same major group); #1 and #2 by market value ($27B vs $22B) with SEC SIC 4941 (Water Supply).

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: -0.10 (needs >= 0.60)
  • Mean reversion: ADF t-statistic of the spread: -2.31 (needs <= -2.873 (5% critical value))
Business leadership

Business size

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

YearAWKSBSLarger
2025$5.1B--
2024$4.7B--
2023$4.2B--
2022$3.8B--
2021$3.9B--
2020$3.7B--

Market value: AWK $26.5B, SBS $22.2B.

Stock leadership

SBS is ahead now

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

SBS leads AWK by 0.41 standard deviations: +4.7% over its usual price ratio. 2 lead switches in the last year.

Price change3 mo6 mo12 mo
AWK+6.4%+6.1%-0.6%
SBS+11.8%-9.2%+30.9%
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: -0.10 (needs >= 0.60)
Fail
Mean reversion: ADF t-statistic of the spread: -2.31 (needs <= -2.873 (5% critical value))
Pass
Speed: half-life of the spread, sessions: 18.24 (needs <= 63)
Data
Both stocks current
The twins over two years

Prices side by side, and the gap between them

AWK American Water Works Company Inc. SBS Companhia de saneamento Basico Do Estado De Sao Paulo - SabespPrice 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 2026AWK 101SBS 195
Spread z-score: AWK relative to SBS, against the 252 sessions before each day. Above 0: AWK ahead; below 0: SBS ahead. Lines at +/-2 (idea) and +/-4 (stop).
-4stop-2idea0+2idea+4stopOct 2024Oct 2025Oct 2026
Data table (504 sessions)
DateAWK indexSBS indexzAhead
2026-10-22100.89195.40-0.41near the usual relationship
2026-10-2194.93196.96-1.02SBS ahead
2026-10-2095.65199.45-1.07SBS ahead
2026-10-1994.09196.34-1.08SBS ahead
2026-10-1695.05195.09-0.94SBS ahead
2026-10-1593.72195.09-1.07SBS ahead
2026-10-1492.78200.07-1.37SBS ahead
2026-10-1391.61201.01-1.53SBS ahead
2026-10-1291.26209.74-1.93SBS ahead
2026-10-0990.79210.05-2.00SBS ahead
2026-10-0890.29205.37-1.87SBS ahead
2026-10-0789.73198.52-1.65SBS ahead
2026-10-0690.19199.76-1.68SBS ahead
2026-10-0590.05195.09-1.51SBS ahead
2026-10-0291.75167.66-0.08near the usual relationship
2026-10-0190.07163.92-0.05near the usual relationship
2026-09-3091.20165.48-0.03near the usual relationship
2026-09-2991.43161.43+0.20near the usual relationship
2026-09-2890.82160.18+0.20near the usual relationship
2026-09-2592.22161.43+0.26near the usual relationship
2026-09-2492.65160.50+0.34near the usual relationship
2026-09-2393.73161.12+0.40near the usual relationship
2026-09-2294.27167.98+0.10near the usual relationship
2026-09-2194.37169.53+0.03near the usual relationship
2026-09-1895.73165.48+0.35near the usual relationship
2026-09-1797.38164.55+0.53AWK ahead
2026-09-1697.04164.55+0.49near the usual relationship
2026-09-1597.22163.30+0.57AWK ahead
2026-09-1497.86162.68+0.64AWK ahead
2026-09-1196.99164.86+0.46near the usual relationship
2026-09-1098.51165.79+0.53AWK ahead
2026-09-0998.85161.43+0.76AWK ahead
2026-09-0898.89164.24+0.62AWK ahead
2026-09-0499.11160.50+0.81AWK ahead
2026-09-0399.25159.87+0.84AWK ahead
2026-09-0298.26158.63+0.81AWK ahead
2026-09-0196.79151.77+1.03AWK ahead
2026-08-3197.37151.46+1.08AWK ahead
2026-08-2897.42151.77+1.06AWK ahead
2026-08-2796.29150.21+1.04AWK ahead
2026-08-2696.85151.15+1.02AWK ahead
2026-08-2596.93149.59+1.09AWK ahead
2026-08-2498.56144.29+1.47AWK ahead
2026-08-2195.37143.67+1.25AWK ahead
2026-08-2096.65138.99+1.57AWK ahead
2026-08-1997.71142.42+1.47AWK ahead
2026-08-1895.99141.80+1.36AWK ahead
2026-08-1794.64142.73+1.20AWK ahead
2026-08-1495.94143.36+1.26AWK ahead
2026-08-1396.13145.85+1.14AWK ahead
2026-08-1295.04158.94+0.43near the usual relationship
2026-08-1195.84156.76+0.58AWK ahead
2026-08-1095.41162.37+0.29near the usual relationship
2026-08-0795.32165.48+0.14near the usual relationship
2026-08-0694.97167.35+0.03near the usual relationship
2026-08-0594.51169.22-0.09near the usual relationship
2026-08-0494.40169.22-0.11near the usual relationship
2026-08-0392.49169.22-0.25near the usual relationship
2026-07-3194.51169.85-0.14near the usual relationship
2026-07-3096.37170.47-0.05near the usual relationship
2026-07-2997.27163.92+0.25near the usual relationship
2026-07-2897.24172.03-0.07near the usual relationship
2026-07-2794.79177.01-0.41near the usual relationship
2026-07-2494.86174.83-0.33near the usual relationship
2026-07-2394.68178.57-0.48near the usual relationship
2026-07-2294.27181.69-0.62SBS ahead
2026-07-2192.65177.01-0.57SBS ahead
2026-07-2094.15179.19-0.55SBS ahead
2026-07-1795.17179.19-0.50SBS ahead
2026-07-1694.63180.44-0.58SBS ahead
2026-07-1591.02184.49-0.94SBS ahead
2026-07-1492.68186.05-0.89SBS ahead
2026-07-1392.65184.80-0.86SBS ahead
2026-07-1092.06188.86-1.02SBS ahead
2026-07-0991.96182.00-0.83SBS ahead
2026-07-0892.90177.64-0.64SBS ahead
2026-07-0794.97178.26-0.54SBS ahead
2026-07-0693.75181.06-0.70SBS ahead
2026-07-0296.41179.19-0.49near the usual relationship
2026-07-0192.84179.19-0.71SBS ahead
2026-06-3092.69180.13-0.76SBS ahead
2026-06-2993.34181.06-0.75SBS ahead
2026-06-2693.46180.44-0.73SBS ahead
2026-06-2591.58175.45-0.70SBS ahead
2026-06-2491.32172.34-0.62SBS ahead
2026-06-2389.18170.78-0.71SBS ahead
2026-06-2288.00168.91-0.73SBS ahead
2026-06-1888.10163.61-0.55SBS ahead
2026-06-1788.34167.66-0.68SBS ahead
2026-06-1690.50171.72-0.68SBS ahead
2026-06-1589.37173.59-0.81SBS ahead
2026-06-1288.98170.16-0.74SBS ahead
2026-06-1187.67170.47-0.83SBS ahead
2026-06-1089.08167.04-0.64SBS ahead
2026-06-0988.43168.91-0.75SBS ahead
2026-06-0886.28165.79-0.79SBS ahead
2026-06-0587.68166.73-0.74SBS ahead
2026-06-0486.12171.09-0.98SBS ahead
2026-06-0387.21168.29-0.83SBS ahead
2026-06-0287.12172.34-0.97SBS ahead
2026-06-0185.33170.16-1.02SBS ahead
2026-05-2986.83172.03-0.99SBS ahead
2026-05-2886.19173.90-1.10SBS ahead
2026-05-2787.19176.39-1.12SBS ahead
2026-05-2687.24178.57-1.19SBS ahead
2026-05-2288.19176.39-1.08SBS ahead
2026-05-2187.26177.95-1.19SBS ahead
2026-05-2086.19182.62-1.40SBS ahead
2026-05-1987.46177.01-1.17SBS ahead
2026-05-1887.93182.31-1.31SBS ahead
2026-05-1587.55178.26-1.22SBS ahead
2026-05-1488.74184.80-1.35SBS ahead
2026-05-1389.72182.93-1.25SBS ahead
2026-05-1289.92188.23-1.40SBS ahead
2026-05-1188.76195.09-1.68SBS ahead
2026-05-0888.09197.89-1.81SBS ahead
2026-05-0788.90198.52-1.79SBS ahead
2026-05-0688.53206.68-2.05SBS ahead
2026-05-0588.79208.80-2.11SBS ahead
2026-05-0489.36204.81-2.00SBS ahead
2026-05-0189.73207.49-2.07SBS ahead
2026-04-3090.46209.61-2.10SBS ahead
2026-04-2992.96205.31-1.86SBS ahead
2026-04-2893.46209.49-1.96SBS ahead
2026-04-2792.96212.48-2.09SBS ahead
2026-04-2493.28216.28-2.20SBS ahead
2026-04-2395.08215.28-2.09SBS ahead
2026-04-2292.37215.91-2.29SBS ahead
2026-04-2193.02220.71-2.40SBS ahead
2026-04-2093.86220.27-2.36SBS ahead
2026-04-1792.71210.98-2.21SBS ahead
2026-04-1692.07208.68-2.21SBS ahead
2026-04-1591.79211.98-2.35SBS ahead
2026-04-1493.96210.67-2.20SBS ahead
2026-04-1394.68209.92-2.16SBS ahead
2026-04-1096.66212.60-2.13SBS ahead
2026-04-0998.09205.62-1.87SBS ahead
2026-04-0896.06197.64-1.77SBS ahead
2026-04-0795.36189.73-1.59SBS ahead
2026-04-0697.15188.67-1.46SBS ahead
2026-04-0297.31189.42-1.49SBS ahead
2026-04-0196.36188.23-1.52SBS ahead
2026-03-3195.87190.16-1.62SBS ahead
2026-03-3097.79183.43-1.31SBS ahead
2026-03-2796.41179.32-1.27SBS ahead
2026-03-2696.87180.53-1.29SBS ahead
2026-03-2594.81185.81-1.59SBS ahead
2026-03-2494.10181.08-1.49SBS ahead
2026-03-2395.61181.27-1.42SBS ahead
2026-03-2095.65173.62-1.19SBS ahead
2026-03-1996.58181.39-1.39SBS ahead
2026-03-1896.33174.99-1.21SBS ahead
2026-03-1797.37178.97-1.28SBS ahead
2026-03-1698.00173.24-1.07SBS ahead
2026-03-1398.40169.82-0.95SBS ahead
2026-03-1297.39170.94-1.05SBS ahead
2026-03-1194.63178.22-1.44SBS ahead
2026-03-1093.58178.28-1.51SBS ahead
2026-03-0997.02176.11-1.25SBS ahead
2026-03-0696.85171.50-1.13SBS ahead
2026-03-0594.84173.87-1.32SBS ahead
2026-03-0496.09181.27-1.49SBS ahead
2026-03-0395.67174.55-1.32SBS ahead
2026-03-0295.41184.26-1.63SBS ahead
2026-02-2795.82186.75-1.70SBS ahead
2026-02-2694.62188.49-1.83SBS ahead
2026-02-2594.55189.86-1.89SBS ahead
2026-02-2494.45185.63-1.80SBS ahead
2026-02-2393.63182.95-1.78SBS ahead
2026-02-2091.13184.57-2.00SBS ahead
2026-02-1992.53182.89-1.89SBS ahead
2026-02-1892.39179.72-1.82SBS ahead
2026-02-1794.05181.77-1.81SBS ahead
2026-02-1394.04182.33-1.85SBS ahead
2026-02-1290.43182.45-2.10SBS ahead
2026-02-1187.13184.07-2.39SBS ahead
2026-02-1088.07180.71-2.26SBS ahead
2026-02-0986.61177.97-2.30SBS ahead
2026-02-0687.58171.69-2.05SBS ahead
2026-02-0588.53170.94-1.99SBS ahead
2026-02-0487.56169.57-2.03SBS ahead
2026-02-0388.68172.62-2.08SBS ahead
2026-02-0289.16170.07-1.99SBS ahead
2026-01-3090.96167.15-1.78SBS ahead
2026-01-2990.87168.51-1.86SBS ahead
2026-01-2889.50169.63-2.01SBS ahead
2026-01-2791.95168.64-1.83SBS ahead
2026-01-2692.10164.34-1.68SBS ahead
2026-01-2391.37164.84-1.77SBS ahead
2026-01-2292.67158.87-1.47SBS ahead
2026-01-2192.27153.08-1.28SBS ahead
2026-01-2092.58148.85-1.09SBS ahead
2026-01-1693.93142.50-0.74SBS ahead
2026-01-1593.93143.62-0.80SBS ahead
2026-01-1493.30144.06-0.86SBS ahead
2026-01-1392.46144.31-0.94SBS ahead
2026-01-1291.79146.48-1.08SBS ahead
2026-01-0990.15152.96-1.46SBS ahead
2026-01-0891.06152.58-1.39SBS ahead
2026-01-0789.65149.29-1.37SBS ahead
2026-01-0690.85150.90-1.36SBS ahead
2026-01-0589.74150.65-1.44SBS ahead
2026-01-0291.80151.65-1.35SBS ahead
2025-12-3191.93148.41-1.22SBS ahead
2025-12-3092.37150.22-1.27SBS ahead
2025-12-2992.24146.73-1.15SBS ahead
2025-12-2691.96156.94-1.58SBS ahead
2025-12-2492.48157.50-1.58SBS ahead
2025-12-2392.10157.56-1.62SBS ahead
2025-12-2292.75151.71-1.36SBS ahead
2025-12-1991.75152.71-1.48SBS ahead
2025-12-1893.70152.33-1.35SBS ahead
2025-12-1794.40150.97-1.26SBS ahead
2025-12-1693.49152.40-1.38SBS ahead
2025-12-1594.48159.68-1.61SBS ahead
2025-12-1292.67156.69-1.63SBS ahead
2025-12-1191.64153.89-1.60SBS ahead
2025-12-1090.67152.96-1.64SBS ahead
2025-12-0990.27155.70-1.79SBS ahead
2025-12-0890.49156.13-1.81SBS ahead
2025-12-0591.22155.94-1.78SBS ahead
2025-12-0490.82167.27-2.25SBS ahead
2025-12-0392.26166.09-2.14SBS ahead
2025-12-0292.10167.70-2.23SBS ahead
2025-12-0192.28162.04-2.04SBS ahead
2025-11-2891.62164.10-2.19SBS ahead
2025-11-2691.47164.59-2.25SBS ahead
2025-11-2591.85161.42-2.13SBS ahead
2025-11-2492.64162.04-2.13SBS ahead
2025-11-2193.51158.06-1.93SBS ahead
2025-11-2090.26156.50-2.12SBS ahead
2025-11-1989.55159.99-2.35SBS ahead
2025-11-1891.51158.62-2.18SBS ahead
2025-11-1793.46162.67-2.24SBS ahead
2025-11-1492.72166.96-2.50SBS ahead
2025-11-1392.60165.34-2.48SBS ahead
2025-11-1291.41165.90-2.64SBS ahead
2025-11-1191.58161.92-2.50SBS ahead
2025-11-1090.83159.86-2.51SBS ahead
2025-11-0792.17159.86-2.44SBS ahead
2025-11-0691.22158.87-2.51SBS ahead
2025-11-0592.26158.93-2.46SBS ahead
2025-11-0490.22153.89-2.43SBS ahead
2025-11-0388.74154.89-2.64SBS ahead
2025-10-3190.47152.71-2.43SBS ahead
2025-10-3089.25152.33-2.55SBS ahead
2025-10-2991.62152.33-2.39SBS ahead
2025-10-2894.96153.27-2.19SBS ahead
2025-10-2797.20153.14-2.03SBS ahead
2025-10-2499.74153.83-1.89SBS ahead
2025-10-23100.44151.40-1.74SBS ahead
2025-10-22101.25150.34-1.64SBS ahead
2025-10-21101.55149.29-1.58SBS ahead
2025-10-20102.44150.72-1.60SBS ahead
2025-10-17101.30148.48-1.58SBS ahead
2025-10-16100.88147.42-1.57SBS ahead
2025-10-15100.40144.06-1.44SBS ahead
2025-10-1499.72142.56-1.43SBS ahead
2025-10-1398.36141.01-1.46SBS ahead
2025-10-10100.72138.58-1.16SBS ahead
2025-10-0999.36142.56-1.49SBS ahead
2025-10-0899.34144.12-1.59SBS ahead
2025-10-07100.39145.12-1.58SBS ahead
2025-10-0697.87149.66-2.04SBS ahead
2025-10-0397.03149.29-2.11SBS ahead
2025-10-0295.51149.04-2.25SBS ahead
2025-10-0195.85153.14-2.47SBS ahead
2025-09-3098.05154.89-2.42SBS ahead
2025-09-2996.53152.27-2.44SBS ahead
2025-09-2696.06149.54-2.37SBS ahead
2025-09-2595.17149.72-2.49SBS ahead
2025-09-2496.09152.96-2.64SBS ahead
2025-09-2396.63155.57-2.78SBS ahead
2025-09-2295.13150.41-2.68SBS ahead
2025-09-1995.14152.83-2.87SBS ahead
2025-09-1895.37151.78-2.84SBS ahead
2025-09-1795.87149.16-2.69SBS ahead
2025-09-1695.98148.54-2.69SBS ahead
2025-09-1596.91149.22-2.69SBS ahead
2025-09-1298.11146.05-2.41SBS ahead
2025-09-1198.36146.80-2.48SBS ahead
2025-09-1097.56143.81-2.40SBS ahead
2025-09-0998.68142.01-2.20SBS ahead
2025-09-0898.63144.31-2.39SBS ahead
2025-09-05101.16144.12-2.17SBS ahead
2025-09-0499.73139.52-2.02SBS ahead
2025-09-0399.11137.71-1.97SBS ahead
2025-09-0299.61137.84-1.96SBS ahead
2025-08-29101.09140.95-2.06SBS ahead
2025-08-28100.68139.52-2.02SBS ahead
2025-08-27101.97137.90-1.80SBS ahead
2025-08-26101.40133.79-1.56SBS ahead
2025-08-25101.72137.46-1.82SBS ahead
2025-08-22102.99136.59-1.65SBS ahead
2025-08-21102.75132.73-1.39SBS ahead
2025-08-20102.58130.93-1.28SBS ahead
2025-08-19102.29130.43-1.27SBS ahead
2025-08-18100.49136.65-1.96SBS ahead
2025-08-15101.38134.35-1.71SBS ahead
2025-08-14101.02135.03-1.82SBS ahead
2025-08-13101.25138.96-2.13SBS ahead
2025-08-12100.09141.45-2.47SBS ahead
2025-08-11102.53126.39-1.02SBS ahead
2025-08-08102.40127.51-1.13SBS ahead
2025-08-07101.73127.88-1.24SBS ahead
2025-08-0699.96124.52-1.15SBS ahead
2025-08-0599.68121.47-0.93SBS ahead
2025-08-04103.55121.91-0.57SBS ahead
2025-08-01102.65121.41-0.62SBS ahead
2025-07-3198.79119.98-0.91SBS ahead
2025-07-3098.37121.47-1.09SBS ahead
2025-07-2999.29119.73-0.85SBS ahead
2025-07-2897.71119.10-0.97SBS ahead
2025-07-2598.84120.16-0.95SBS ahead
2025-07-2498.98122.72-1.16SBS ahead
2025-07-2399.94125.08-1.27SBS ahead
2025-07-22102.08122.65-0.85SBS ahead
2025-07-21100.62123.77-1.10SBS ahead
2025-07-18100.67122.90-1.03SBS ahead
2025-07-17100.18125.58-1.31SBS ahead
2025-07-1699.83125.64-1.36SBS ahead
2025-07-1599.20124.89-1.38SBS ahead
2025-07-14100.98123.77-1.11SBS ahead
2025-07-11100.23125.08-1.31SBS ahead
2025-07-10100.51125.20-1.30SBS ahead
2025-07-0999.89128.25-1.63SBS ahead
2025-07-0899.34130.43-1.88SBS ahead
2025-07-0798.59131.43-2.06SBS ahead
2025-07-0398.65135.28-2.39SBS ahead
2025-07-0298.84132.61-2.18SBS ahead
2025-07-01100.42137.52-2.43SBS ahead
2025-06-3097.99136.71-2.67SBS ahead
2025-06-2797.15130.49-2.29SBS ahead
2025-06-2697.51129.81-2.22SBS ahead
2025-06-2598.65127.01-1.87SBS ahead
2025-06-24100.15129.37-1.92SBS ahead
2025-06-23101.43128.19-1.70SBS ahead
2025-06-2099.50129.19-2.01SBS ahead
2025-06-1899.39131.30-2.23SBS ahead
2025-06-1799.27131.49-2.28SBS ahead
2025-06-1698.95130.80-2.29SBS ahead
2025-06-1399.63129.56-2.13SBS ahead
2025-06-1299.55129.75-2.19SBS ahead
2025-06-1199.05129.68-2.27SBS ahead
2025-06-1099.51128.32-2.12SBS ahead
2025-06-0998.49125.95-2.05SBS ahead
2025-06-0698.65127.51-2.20SBS ahead
2025-06-0598.63127.88-2.26SBS ahead
2025-06-0497.80125.33-2.15SBS ahead
2025-06-0399.93127.88-2.17SBS ahead
2025-06-02100.32126.01-1.97SBS ahead
2025-05-30100.71127.82-2.12SBS ahead
2025-05-2999.70130.56-2.54SBS ahead
2025-05-2899.23128.81-2.47SBS ahead
2025-05-27100.83130.99-2.52SBS ahead
2025-05-23101.16128.57-2.28SBS ahead
2025-05-2299.92127.63-2.38SBS ahead
2025-05-21101.07129.93-2.50SBS ahead
2025-05-20101.31130.62-2.58SBS ahead
2025-05-19101.23128.63-2.44SBS ahead
2025-05-16100.42127.69-2.49SBS ahead
2025-05-1598.88126.64-2.63SBS ahead
2025-05-1494.27126.32-3.31SBS ahead
2025-05-1394.28126.45-3.41SBS ahead
2025-05-1297.66124.58-2.77SBS ahead
2025-05-09103.51128.13-2.38SBS ahead
2025-05-08102.42127.82-2.53SBS ahead
2025-05-07104.31125.26-2.00SBS ahead
2025-05-06105.10124.77-1.84SBS ahead
2025-05-05104.36123.34-1.79SBS ahead
2025-05-02103.63123.96-1.98SBS ahead
2025-05-01103.15124.58-2.14SBS ahead
2025-04-30103.56126.51-2.32SBS ahead
2025-04-29102.75126.26-2.43SBS ahead
2025-04-28101.63126.32-2.63SBS ahead
2025-04-25101.42126.20-2.67SBS ahead
2025-04-24102.87125.83-2.41SBS ahead
2025-04-23103.67122.90-1.94SBS ahead
2025-04-22105.14119.54-1.29SBS ahead
2025-04-21103.64116.43-1.10SBS ahead
2025-04-17104.54116.49-0.97SBS ahead
2025-04-16103.13114.19-0.86SBS ahead
2025-04-15103.47114.44-0.83SBS ahead
2025-04-14104.84115.49-0.76SBS ahead
2025-04-11102.91113.75-0.80SBS ahead
2025-04-10100.84109.89-0.58SBS ahead
2025-04-0997.91108.65-0.83SBS ahead
2025-04-0899.23104.67-0.08near the usual relationship
2025-04-07100.28106.47-0.17near the usual relationship
2025-04-04103.71109.89-0.13near the usual relationship
2025-04-03107.04116.31-0.47near the usual relationship
2025-04-02102.98111.51-0.42near the usual relationship
2025-04-01103.55112.01-0.39near the usual relationship
2025-03-31103.92111.14-0.23near the usual relationship
2025-03-28103.01111.89-0.43near the usual relationship
2025-03-27100.77112.26-0.76SBS ahead
2025-03-2699.42110.46-0.72SBS ahead
2025-03-2598.03111.14-0.98SBS ahead
2025-03-2498.41107.16-0.44near the usual relationship
2025-03-2199.42109.89-0.64SBS ahead
2025-03-2099.89111.82-0.80SBS ahead
2025-03-19100.06112.32-0.84SBS ahead
2025-03-18101.97109.46-0.24near the usual relationship
2025-03-17102.01109.77-0.27near the usual relationship
2025-03-14101.66107.03+0.02near the usual relationship
2025-03-13100.41104.54+0.17near the usual relationship
2025-03-1299.23102.49+0.28near the usual relationship
2025-03-11101.04102.37+0.54AWK ahead
2025-03-10105.18101.99+1.12AWK ahead
2025-03-07102.42103.42+0.60AWK ahead
2025-03-0697.34101.12+0.24near the usual relationship
2025-03-0597.08101.37+0.18near the usual relationship
2025-03-0498.0699.50+0.55AWK ahead
2025-03-0398.32100.75+0.43near the usual relationship
2025-02-2895.78100.25+0.17near the usual relationship
2025-02-2794.41101.99-0.23near the usual relationship
2025-02-2695.14102.93-0.24near the usual relationship
2025-02-2596.68105.29-0.32near the usual relationship
2025-02-2494.10104.29-0.53SBS ahead
2025-02-2193.46106.66-0.89SBS ahead
2025-02-2090.64106.85-1.29SBS ahead
2025-02-1990.07107.10-1.40SBS ahead
2025-02-1889.58109.03-1.70SBS ahead
2025-02-1488.52110.39-2.02SBS ahead
2025-02-1389.37106.41-1.44SBS ahead
2025-02-1288.07104.54-1.41SBS ahead
2025-02-1188.11105.72-1.55SBS ahead
2025-02-1086.72104.23-1.58SBS ahead
2025-02-0786.28102.86-1.48SBS ahead
2025-02-0687.33105.17-1.61SBS ahead
2025-02-0587.07104.48-1.58SBS ahead
2025-02-0487.24104.79-1.60SBS ahead
2025-02-0388.59102.37-1.10SBS ahead
2025-01-3187.80100.69-1.01SBS ahead
2025-01-3087.11100.93-1.15SBS ahead
2025-01-2987.5298.88-0.82SBS ahead
2025-01-2888.99100.44-0.81SBS ahead
2025-01-2791.54100.93-0.51SBS ahead
2025-01-2485.6897.51-0.92SBS ahead
2025-01-2385.8197.58-0.92SBS ahead
2025-01-2285.7198.26-1.02SBS ahead
2025-01-2188.9997.95-0.50SBS ahead
2025-01-1789.1895.09-0.09near the usual relationship
2025-01-1689.0193.41+0.12near the usual relationship
2025-01-1587.0295.46-0.46near the usual relationship
2025-01-1486.3190.48+0.13near the usual relationship
2025-01-1385.2489.92+0.05near the usual relationship
2025-01-1085.3289.11+0.17near the usual relationship
2025-01-0886.3789.36+0.29near the usual relationship
2025-01-0785.6890.73-0.01near the usual relationship
2025-01-0685.9289.73+0.16near the usual relationship
2025-01-0387.1987.68+0.65AWK ahead
2025-01-0287.2589.61+0.38near the usual relationship
2024-12-3187.6989.17+0.50AWK ahead
2024-12-3087.5289.42+0.44near the usual relationship
2024-12-2788.2689.67+0.51AWK ahead
2024-12-2688.8789.55+0.62AWK ahead
2024-12-2488.5789.11+0.64AWK ahead
2024-12-2388.7488.86+0.71AWK ahead
2024-12-2088.7089.30+0.64AWK ahead
2024-12-1987.2388.18+0.58AWK ahead
2024-12-1887.6586.50+0.89AWK ahead
2024-12-1791.0091.60+0.63AWK ahead
2024-12-1690.8190.23+0.80AWK ahead
2024-12-1391.2991.79+0.64AWK ahead
2024-12-1291.9693.09+0.55AWK ahead
2024-12-1191.8196.08+0.12near the usual relationship
2024-12-1092.2794.28+0.41near the usual relationship
2024-12-0992.0893.09+0.54AWK ahead
2024-12-0693.2493.16+0.68AWK ahead
2024-12-0593.0596.89+0.16near the usual relationship
2024-12-0492.2994.34+0.38near the usual relationship
2024-12-0394.4696.14+0.43near the usual relationship
2024-12-0295.5293.84+0.85AWK ahead
2024-11-2996.4694.96+0.82AWK ahead
2024-11-2797.43102.12+0.05near the usual relationship
2024-11-2696.92106.41-0.51SBS ahead
2024-11-2596.32105.23-0.46near the usual relationship
2024-11-2296.72105.17-0.41near the usual relationship
2024-11-2197.77103.67-0.12near the usual relationship
2024-11-2097.13106.47-0.52SBS ahead
2024-11-1997.35106.16-0.46near the usual relationship
2024-11-1896.27104.11-0.37near the usual relationship
2024-11-1594.55105.17-0.70SBS ahead
2024-11-1493.00103.67-0.73SBS ahead
2024-11-1393.29101.80-0.50SBS ahead
2024-11-1293.29102.74-0.61SBS ahead
2024-11-1194.9499.32-0.03near the usual relationship
2024-11-0895.8797.08+0.32near the usual relationship
2024-11-0793.5898.57-0.12near the usual relationship
2024-11-0694.10100.62-0.30near the usual relationship
2024-11-0596.5898.94+0.16near the usual relationship
2024-11-0495.3197.88+0.13near the usual relationship
2024-11-0195.8094.77+0.52AWK ahead
2024-10-3197.2998.88+0.22near the usual relationship
2024-10-3095.5899.88-0.08near the usual relationship
2024-10-2995.6699.50-0.03near the usual relationship
2024-10-2897.7799.94+0.14near the usual relationship
2024-10-2596.9799.50+0.10near the usual relationship
2024-10-2498.4899.01+0.31near the usual relationship
2024-10-23100.1198.63+0.51AWK ahead
2024-10-2299.1599.63+0.30near the usual relationship
2024-10-2199.36100.81+0.20near the usual relationship
2024-10-18100.00100.00+0.34near the usual relationship

One-day company-specific moves (4+ standard deviations, which block ideas for 10 sessions): Aug 12, 2025 (AWK -2.4%, SBS +11.9%); Oct 5, 2026 (AWK -1.9%, SBS +16.4%). Upcoming earnings: AWK Oct 28, 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

AWK and SBS at a glance

AWK American Water Works Company Inc.

Listing
NYSE · SEC CIK 1410636
Industry
Water Supply · SIC 4941 Water Supply
Market value
$26.5B
Price history
2,521 daily closes, Oct 12, 2016 to Oct 22, 2026

SBS Companhia de saneamento Basico Do Estado De Sao Paulo - Sabesp

Listing
NYSE · SEC CIK 1170858
Industry
Water Supply · SIC 4941 Water Supply
Market value
$22.2B
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
AWK / WTRGMeasured twinWTRG by 1.29 sdWater Supply
SBS / WTRGWatchlistSBS by 0.27 sdWater Supply

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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.