Cable & Other Pay Television Services

Comcast Corporation vs Roku Inc.

WatchlistCMCSA / ROKUPrices through Oct 22, 2026

Why these are rivals: #1 and #2 by market value ($78B vs $23B) in Nasdaq's "Cable & Other Pay Television Services" industry; SEC SIC 4841 / 4841 (same major group); #1 and #2 by market value ($78B vs $23B) with SEC SIC 4841 (Cable & Other Pay Television Services).

Rivals, but right now the price gap does not have a measured habit of closing, so there is no paper idea, whatever the gap.

  • Co-movement: daily return correlation, 252 sessions: 0.14 (needs >= 0.60)
  • Mean reversion: ADF t-statistic of the spread: -0.34 (needs <= -2.873 (5% critical value))
  • Speed: half-life of the spread, sessions: 279.53 (needs <= 63)
Business leadership

CMCSA is the larger business

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

YearCMCSAROKULarger
2025$123.7B$4.7BCMCSA
2024$123.7B$4.1BCMCSA
2023$121.6B$3.5BCMCSA
2022$121.4B$3.1BCMCSA
2021$116.4B$2.8BCMCSA
2020$103.6B$1.8BCMCSA

CMCSA led in every year with figures for both. Market value: CMCSA $77.7B, ROKU $23.1B.

Stock leadership

ROKU is ahead now

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

ROKU leads CMCSA by 1.53 standard deviations: +54.1% over its usual price ratio. 0 lead switches in the last year.

Price change3 mo6 mo12 mo
CMCSA+2.4%-27.8%-18.8%
ROKU+12.7%+39.2%+64.2%
Relationship

Not a measured twin today

Only these tests can make a pair tradable on paper.

Pass
Aligned sessions: 2279 (needs >= 254)
Fail
Co-movement: daily return correlation, 252 sessions: 0.14 (needs >= 0.60)
Fail
Mean reversion: ADF t-statistic of the spread: -0.34 (needs <= -2.873 (5% critical value))
Fail
Speed: half-life of the spread, sessions: 279.53 (needs <= 63)
Data
Both stocks current
The twins over two years

Prices side by side, and the gap between them

CMCSA Comcast Corporation ROKU Roku Inc.Price index, 100 = 2024-10-18. Tint = which stock is ahead of the pair's usual 1-year relationship (z beyond +/-0.5).
50100150200Oct 2024Oct 2025Oct 2026CMCSA 58ROKU 200
Spread z-score: CMCSA relative to ROKU, against the 252 sessions before each day. Above 0: CMCSA ahead; below 0: ROKU ahead. Lines at +/-2 (idea) and +/-4 (stop).
-4stop-2idea0+2idea+4stopOct 2024Oct 2025Oct 2026
Data table (504 sessions)
DateCMCSA indexROKU indexzAhead
2026-10-2258.03199.90-1.53ROKU ahead
2026-10-2156.10197.05-1.61ROKU ahead
2026-10-2056.81196.79-1.58ROKU ahead
2026-10-1955.64194.26-1.62ROKU ahead
2026-10-1655.64193.01-1.61ROKU ahead
2026-10-1555.31193.17-1.65ROKU ahead
2026-10-1453.48190.55-1.74ROKU ahead
2026-10-1353.05190.66-1.79ROKU ahead
2026-10-1252.54190.85-1.85ROKU ahead
2026-10-0952.49190.90-1.87ROKU ahead
2026-10-0853.89192.09-1.82ROKU ahead
2026-10-0753.20190.74-1.86ROKU ahead
2026-10-0654.78189.91-1.76ROKU ahead
2026-10-0554.80191.59-1.81ROKU ahead
2026-10-0254.80190.32-1.80ROKU ahead
2026-10-0155.13188.91-1.77ROKU ahead
2026-09-3055.28190.18-1.81ROKU ahead
2026-09-2954.88190.01-1.85ROKU ahead
2026-09-2855.36190.67-1.85ROKU ahead
2026-09-2555.66190.68-1.85ROKU ahead
2026-09-2456.22191.49-1.85ROKU ahead
2026-09-2357.29191.69-1.80ROKU ahead
2026-09-2256.96192.64-1.86ROKU ahead
2026-09-2158.26192.74-1.79ROKU ahead
2026-09-1857.77191.88-1.83ROKU ahead
2026-09-1758.21192.43-1.83ROKU ahead
2026-09-1660.29193.73-1.73ROKU ahead
2026-09-1562.04195.60-1.67ROKU ahead
2026-09-1463.21196.64-1.64ROKU ahead
2026-09-1164.02193.49-1.53ROKU ahead
2026-09-1063.95192.48-1.53ROKU ahead
2026-09-0962.47190.96-1.61ROKU ahead
2026-09-0866.89194.01-1.41ROKU ahead
2026-09-0467.30194.32-1.40ROKU ahead
2026-09-0367.71197.71-1.46ROKU ahead
2026-09-0268.11196.95-1.43ROKU ahead
2026-09-0166.82194.24-1.47ROKU ahead
2026-08-3167.63195.99-1.47ROKU ahead
2026-08-2868.75196.92-1.43ROKU ahead
2026-08-2767.10195.14-1.51ROKU ahead
2026-08-2669.10198.08-1.46ROKU ahead
2026-08-2568.85199.53-1.52ROKU ahead
2026-08-2468.65197.55-1.50ROKU ahead
2026-08-2168.22196.69-1.52ROKU ahead
2026-08-2067.12196.23-1.59ROKU ahead
2026-08-1967.55195.83-1.57ROKU ahead
2026-08-1866.56197.05-1.67ROKU ahead
2026-08-1764.96197.71-1.80ROKU ahead
2026-08-1466.51196.93-1.70ROKU ahead
2026-08-1366.51192.43-1.62ROKU ahead
2026-08-1264.71189.57-1.69ROKU ahead
2026-08-1165.17188.47-1.65ROKU ahead
2026-08-1064.02189.63-1.77ROKU ahead
2026-08-0764.43191.22-1.79ROKU ahead
2026-08-0663.95187.42-1.75ROKU ahead
2026-08-0562.88183.54-1.75ROKU ahead
2026-08-0463.34184.00-1.75ROKU ahead
2026-08-0362.40182.14-1.79ROKU ahead
2026-07-3160.87181.10-1.89ROKU ahead
2026-07-3060.14181.20-1.96ROKU ahead
2026-07-2962.52181.50-1.83ROKU ahead
2026-07-2861.46179.73-1.88ROKU ahead
2026-07-2757.93178.49-2.12ROKU ahead
2026-07-2456.64177.31-2.21ROKU ahead
2026-07-2355.69176.93-2.31ROKU ahead
2026-07-2259.75178.69-2.07ROKU ahead
2026-07-2160.49180.18-2.08ROKU ahead
2026-07-2060.42180.00-2.10ROKU ahead
2026-07-1760.44180.38-2.14ROKU ahead
2026-07-1661.23179.62-2.09ROKU ahead
2026-07-1559.68178.99-2.21ROKU ahead
2026-07-1458.92177.05-2.25ROKU ahead
2026-07-1360.90177.77-2.14ROKU ahead
2026-07-1059.88175.71-2.19ROKU ahead
2026-07-0959.31175.17-2.25ROKU ahead
2026-07-0858.92173.91-2.27ROKU ahead
2026-07-0759.48176.36-2.32ROKU ahead
2026-07-0659.40177.67-2.39ROKU ahead
2026-07-0260.44177.88-2.35ROKU ahead
2026-07-0160.29175.48-2.32ROKU ahead
2026-06-3062.37172.52-2.11ROKU ahead
2026-06-2961.53170.51-2.14ROKU ahead
2026-06-2658.87169.10-2.34ROKU ahead
2026-06-2557.65168.27-2.45ROKU ahead
2026-06-2457.52169.76-2.53ROKU ahead
2026-06-2357.93168.67-2.50ROKU ahead
2026-06-2256.71168.85-2.65ROKU ahead
2026-06-1856.99172.44-2.77ROKU ahead
2026-06-1757.65171.46-2.73ROKU ahead
2026-06-1660.11172.29-2.57ROKU ahead
2026-06-1560.90175.97-2.65ROKU ahead
2026-06-1262.24179.42-2.67ROKU ahead
2026-06-1160.90149.42-1.87ROKU ahead
2026-06-1060.90146.05-1.77ROKU ahead
2026-06-0960.59151.01-1.98ROKU ahead
2026-06-0860.36154.33-2.13ROKU ahead
2026-06-0560.52152.69-2.08ROKU ahead
2026-06-0459.27156.85-2.35ROKU ahead
2026-06-0359.75152.62-2.18ROKU ahead
2026-06-0263.13158.76-2.12ROKU ahead
2026-06-0163.64161.15-2.18ROKU ahead
2026-05-2963.18162.58-2.28ROKU ahead
2026-05-2863.92163.72-2.28ROKU ahead
2026-05-2764.07164.74-2.31ROKU ahead
2026-05-2663.90159.37-2.18ROKU ahead
2026-05-2264.04156.80-2.09ROKU ahead
2026-05-2163.72156.21-2.12ROKU ahead
2026-05-2063.21155.06-2.13ROKU ahead
2026-05-1963.01150.59-2.02ROKU ahead
2026-05-1863.34155.05-2.15ROKU ahead
2026-05-1562.91154.89-2.20ROKU ahead
2026-05-1463.95157.17-2.22ROKU ahead
2026-05-1363.36156.96-2.27ROKU ahead
2026-05-1263.26159.40-2.37ROKU ahead
2026-05-1163.59159.95-2.38ROKU ahead
2026-05-0864.53161.77-2.37ROKU ahead
2026-05-0766.67158.20-2.10ROKU ahead
2026-05-0667.17159.84-2.12ROKU ahead
2026-05-0567.22155.38-1.99ROKU ahead
2026-05-0468.77157.39-1.95ROKU ahead
2026-05-0169.08154.34-1.85ROKU ahead
2026-04-3068.70145.57-1.59ROKU ahead
2026-04-2967.99140.65-1.48ROKU ahead
2026-04-2870.22140.23-1.32ROKU ahead
2026-04-2769.89142.85-1.44ROKU ahead
2026-04-2470.02143.90-1.47ROKU ahead
2026-04-2380.38143.57-0.79ROKU ahead
2026-04-2274.62147.80-1.29ROKU ahead
2026-04-2173.80142.51-1.18ROKU ahead
2026-04-2075.53148.28-1.26ROKU ahead
2026-04-1775.28145.11-1.18ROKU ahead
2026-04-1674.57139.72-1.05ROKU ahead
2026-04-1571.90136.54-1.12ROKU ahead
2026-04-1471.49133.06-1.03ROKU ahead
2026-04-1371.26129.04-0.91ROKU ahead
2026-04-1070.96127.98-0.90ROKU ahead
2026-04-0971.92124.94-0.73ROKU ahead
2026-04-0871.04126.13-0.83ROKU ahead
2026-04-0770.60123.05-0.76ROKU ahead
2026-04-0670.27122.64-0.77ROKU ahead
2026-04-0270.96121.97-0.71ROKU ahead
2026-04-0171.26118.52-0.57ROKU ahead
2026-03-3172.94118.17-0.47near the usual relationship
2026-03-3073.42110.19-0.14near the usual relationship
2026-03-2771.98108.84-0.18near the usual relationship
2026-03-2672.97111.19-0.22near the usual relationship
2026-03-2572.99118.72-0.50ROKU ahead
2026-03-2474.24119.38-0.46near the usual relationship
2026-03-2373.70122.16-0.59ROKU ahead
2026-03-2073.73116.49-0.39near the usual relationship
2026-03-1973.63119.72-0.52ROKU ahead
2026-03-1872.58119.47-0.58ROKU ahead
2026-03-1776.42120.27-0.40near the usual relationship
2026-03-1677.08118.87-0.32near the usual relationship
2026-03-1376.62114.46-0.19near the usual relationship
2026-03-1276.62118.40-0.34near the usual relationship
2026-03-1177.67125.81-0.54ROKU ahead
2026-03-1078.94125.58-0.47near the usual relationship
2026-03-0978.86125.10-0.46near the usual relationship
2026-03-0681.07125.60-0.37near the usual relationship
2026-03-0580.28122.53-0.31near the usual relationship
2026-03-0481.53121.78-0.23near the usual relationship
2026-03-0378.78117.48-0.22near the usual relationship
2026-03-0278.30122.51-0.42near the usual relationship
2026-02-2778.66122.90-0.42near the usual relationship
2026-02-2678.38116.74-0.23near the usual relationship
2026-02-2578.23115.25-0.18near the usual relationship
2026-02-2480.31109.50+0.13near the usual relationship
2026-02-2380.36105.43+0.29near the usual relationship
2026-02-2079.62111.23+0.03near the usual relationship
2026-02-1979.72111.91+0.01near the usual relationship
2026-02-1880.28112.66+0.01near the usual relationship
2026-02-1780.16110.63+0.08near the usual relationship
2026-02-1380.21112.48+0.01near the usual relationship
2026-02-1280.84103.57+0.38near the usual relationship
2026-02-1182.52109.77+0.23near the usual relationship
2026-02-1082.09113.54+0.07near the usual relationship
2026-02-0980.31110.55+0.09near the usual relationship
2026-02-0679.70107.22+0.18near the usual relationship
2026-02-0578.38107.47+0.10near the usual relationship
2026-02-0477.49115.06-0.23near the usual relationship
2026-02-0375.61117.25-0.41near the usual relationship
2026-02-0275.18120.12-0.53ROKU ahead
2026-01-3075.58118.90-0.47near the usual relationship
2026-01-2974.29125.47-0.77ROKU ahead
2026-01-2872.18125.94-0.91ROKU ahead
2026-01-2772.92130.61-1.02ROKU ahead
2026-01-2674.77133.63-1.02ROKU ahead
2026-01-2374.44132.67-1.02ROKU ahead
2026-01-2274.26133.92-1.08ROKU ahead
2026-01-2173.40130.21-1.02ROKU ahead
2026-01-2071.54128.33-1.07ROKU ahead
2026-01-1670.68129.46-1.17ROKU ahead
2026-01-1572.03131.10-1.15ROKU ahead
2026-01-1472.20134.32-1.25ROKU ahead
2026-01-1372.36138.02-1.36ROKU ahead
2026-01-1273.83138.28-1.30ROKU ahead
2026-01-0972.08138.84-1.43ROKU ahead
2026-01-0871.67135.96-1.38ROKU ahead
2026-01-0770.88137.75-1.49ROKU ahead
2026-01-0669.66141.48-1.69ROKU ahead
2026-01-0571.47143.22-1.65ROKU ahead
2026-01-0270.45135.78-1.50ROKU ahead
2025-12-3171.29135.49-1.46ROKU ahead
2025-12-3071.48138.40-1.55ROKU ahead
2025-12-2971.24138.93-1.59ROKU ahead
2025-12-2670.74139.98-1.67ROKU ahead
2025-12-2471.02138.23-1.62ROKU ahead
2025-12-2370.07137.82-1.68ROKU ahead
2025-12-2269.78137.13-1.69ROKU ahead
2025-12-1970.52135.91-1.62ROKU ahead
2025-12-1872.19138.47-1.62ROKU ahead
2025-12-1772.31134.49-1.50ROKU ahead
2025-12-1670.90138.74-1.74ROKU ahead
2025-12-1567.28136.16-1.91ROKU ahead
2025-12-1264.94134.22-2.02ROKU ahead
2025-12-1165.82132.76-1.94ROKU ahead
2025-12-1065.78131.58-1.92ROKU ahead
2025-12-0963.89131.83-2.09ROKU ahead
2025-12-0863.56127.01-1.97ROKU ahead
2025-12-0565.13125.00-1.80ROKU ahead
2025-12-0464.87118.07-1.57ROKU ahead
2025-12-0365.42116.12-1.47ROKU ahead
2025-12-0264.44122.72-1.80ROKU ahead
2025-12-0163.39120.54-1.80ROKU ahead
2025-11-2863.65120.88-1.81ROKU ahead
2025-11-2663.37119.43-1.79ROKU ahead
2025-11-2563.63118.50-1.75ROKU ahead
2025-11-2463.11116.87-1.74ROKU ahead
2025-11-2165.23116.55-1.59ROKU ahead
2025-11-2063.51113.64-1.61ROKU ahead
2025-11-1964.08116.27-1.68ROKU ahead
2025-11-1865.25118.98-1.72ROKU ahead
2025-11-1764.92121.01-1.84ROKU ahead
2025-11-1465.61124.60-1.94ROKU ahead
2025-11-1366.71124.90-1.90ROKU ahead
2025-11-1266.52132.28-2.20ROKU ahead
2025-11-1165.47133.37-2.33ROKU ahead
2025-11-1064.68131.14-2.34ROKU ahead
2025-11-0765.23127.76-2.21ROKU ahead
2025-11-0665.13130.91-2.35ROKU ahead
2025-11-0566.63131.97-2.31ROKU ahead
2025-11-0465.44132.51-2.43ROKU ahead
2025-11-0364.35135.67-2.67ROKU ahead
2025-10-3166.38132.55-2.45ROKU ahead
2025-10-3065.16124.93-2.29ROKU ahead
2025-10-2968.04123.15-2.03ROKU ahead
2025-10-2869.83123.65-1.95ROKU ahead
2025-10-2770.16123.40-1.94ROKU ahead
2025-10-2469.83120.26-1.85ROKU ahead
2025-10-2369.88122.74-1.97ROKU ahead
2025-10-2270.12119.93-1.86ROKU ahead
2025-10-2171.48121.76-1.86ROKU ahead
2025-10-2070.52120.24-1.89ROKU ahead
2025-10-1770.45117.66-1.81ROKU ahead
2025-10-1669.78119.06-1.93ROKU ahead
2025-10-1570.88123.12-2.05ROKU ahead
2025-10-1471.52117.90-1.80ROKU ahead
2025-10-1370.14117.18-1.89ROKU ahead
2025-10-1070.26114.92-1.80ROKU ahead
2025-10-0971.74121.32-2.00ROKU ahead
2025-10-0873.38124.80-2.06ROKU ahead
2025-10-0772.98127.18-2.21ROKU ahead
2025-10-0674.15130.94-2.32ROKU ahead
2025-10-0373.69129.70-2.33ROKU ahead
2025-10-0272.50129.69-2.46ROKU ahead
2025-10-0173.79129.35-2.38ROKU ahead
2025-09-3074.93125.05-2.14ROKU ahead
2025-09-2975.10124.99-2.15ROKU ahead
2025-09-2675.65124.39-2.11ROKU ahead
2025-09-2575.41122.41-2.06ROKU ahead
2025-09-2475.39122.66-2.10ROKU ahead
2025-09-2375.41123.64-2.18ROKU ahead
2025-09-2275.10123.70-2.23ROKU ahead
2025-09-1975.34127.11-2.41ROKU ahead
2025-09-1875.46123.84-2.28ROKU ahead
2025-09-1777.34122.82-2.11ROKU ahead
2025-09-1677.01122.28-2.14ROKU ahead
2025-09-1577.80117.30-1.85ROKU ahead
2025-09-1278.85118.05-1.83ROKU ahead
2025-09-1179.66120.38-1.90ROKU ahead
2025-09-1079.85118.57-1.81ROKU ahead
2025-09-0980.30121.13-1.93ROKU ahead
2025-09-0881.09124.13-2.04ROKU ahead
2025-09-0580.87118.95-1.81ROKU ahead
2025-09-0480.97121.33-1.95ROKU ahead
2025-09-0380.83122.98-2.07ROKU ahead
2025-09-0281.40119.72-1.88ROKU ahead
2025-08-2981.02120.59-1.97ROKU ahead
2025-08-2880.06121.82-2.14ROKU ahead
2025-08-2780.63120.12-2.03ROKU ahead
2025-08-2680.32119.35-2.03ROKU ahead
2025-08-2581.11117.38-1.88ROKU ahead
2025-08-2281.45117.67-1.88ROKU ahead
2025-08-2180.13113.16-1.75ROKU ahead
2025-08-2079.39110.49-1.67ROKU ahead
2025-08-1980.83110.90-1.59ROKU ahead
2025-08-1879.73115.31-1.94ROKU ahead
2025-08-1579.78112.76-1.80ROKU ahead
2025-08-1478.46109.29-1.72ROKU ahead
2025-08-1378.56110.02-1.76ROKU ahead
2025-08-1276.56105.31-1.66ROKU ahead
2025-08-1174.91102.40-1.62ROKU ahead
2025-08-0875.53103.92-1.67ROKU ahead
2025-08-0775.53103.80-1.67ROKU ahead
2025-08-0676.70106.07-1.71ROKU ahead
2025-08-0577.53104.46-1.56ROKU ahead
2025-08-0477.65107.19-1.72ROKU ahead
2025-08-0177.5699.89-1.31ROKU ahead
2025-07-3179.25117.60-2.18ROKU ahead
2025-07-3077.51114.90-2.19ROKU ahead
2025-07-2978.30112.88-2.05ROKU ahead
2025-07-2879.97116.96-2.16ROKU ahead
2025-07-2580.32112.55-1.92ROKU ahead
2025-07-2484.35112.46-1.63ROKU ahead
2025-07-2385.36112.71-1.59ROKU ahead
2025-07-2284.12111.84-1.64ROKU ahead
2025-07-2183.50114.51-1.85ROKU ahead
2025-07-1882.38116.51-2.06ROKU ahead
2025-07-1782.76113.78-1.91ROKU ahead
2025-07-1682.04113.53-1.97ROKU ahead
2025-07-1582.80111.50-1.82ROKU ahead
2025-07-1485.00112.18-1.71ROKU ahead
2025-07-1183.45111.14-1.79ROKU ahead
2025-07-1084.47112.71-1.82ROKU ahead
2025-07-0984.95110.69-1.69ROKU ahead
2025-07-0885.86110.08-1.60ROKU ahead
2025-07-0784.52109.98-1.71ROKU ahead
2025-07-0385.83110.24-1.64ROKU ahead
2025-07-0285.45107.91-1.55ROKU ahead
2025-07-0186.64107.66-1.46ROKU ahead
2025-06-3085.12109.77-1.71ROKU ahead
2025-06-2784.24108.58-1.72ROKU ahead
2025-06-2683.97108.03-1.72ROKU ahead
2025-06-2583.09104.45-1.58ROKU ahead
2025-06-2483.97104.52-1.53ROKU ahead
2025-06-2382.49101.04-1.44ROKU ahead
2025-06-2082.35101.15-1.46ROKU ahead
2025-06-1881.71101.70-1.56ROKU ahead
2025-06-1782.35100.70-1.46ROKU ahead
2025-06-1683.73102.62-1.49ROKU ahead
2025-06-1383.5092.93-0.88ROKU ahead
2025-06-1284.1295.85-1.04ROKU ahead
2025-06-1183.90100.51-1.36ROKU ahead
2025-06-1084.9599.80-1.25ROKU ahead
2025-06-0982.5299.40-1.42ROKU ahead
2025-06-0682.7698.04-1.32ROKU ahead
2025-06-0581.6193.17-1.10ROKU ahead
2025-06-0482.1492.03-0.99ROKU ahead
2025-06-0382.6691.13-0.89ROKU ahead
2025-06-0281.8791.18-0.96ROKU ahead
2025-05-3082.4590.50-0.88ROKU ahead
2025-05-2981.7690.92-0.97ROKU ahead
2025-05-2882.5992.37-1.01ROKU ahead
2025-05-2783.3589.90-0.79ROKU ahead
2025-05-2382.3386.19-0.61ROKU ahead
2025-05-2282.4987.14-0.67ROKU ahead
2025-05-2183.7186.87-0.57ROKU ahead
2025-05-2084.8889.18-0.65ROKU ahead
2025-05-1984.5288.46-0.63ROKU ahead
2025-05-1684.6289.13-0.68ROKU ahead
2025-05-1584.2687.51-0.59ROKU ahead
2025-05-1482.4289.77-0.89ROKU ahead
2025-05-1382.9789.17-0.82ROKU ahead
2025-05-1282.8085.90-0.61ROKU ahead
2025-05-0981.6876.10+0.06near the usual relationship
2025-05-0881.6176.63+0.00near the usual relationship
2025-05-0782.0274.80+0.18near the usual relationship
2025-05-0682.2675.30+0.15near the usual relationship
2025-05-0582.1675.46+0.13near the usual relationship
2025-05-0282.1876.87+0.01near the usual relationship
2025-05-0180.6684.01-0.65ROKU ahead
2025-04-3081.5685.15-0.67ROKU ahead
2025-04-2980.9486.52-0.82ROKU ahead
2025-04-2880.5485.10-0.76ROKU ahead
2025-04-2580.8582.07-0.52ROKU ahead
2025-04-2479.1680.74-0.55ROKU ahead
2025-04-2382.2178.16-0.13near the usual relationship
2025-04-2281.5673.97+0.15near the usual relationship
2025-04-2180.1373.90+0.05near the usual relationship
2025-04-1781.1173.01+0.19near the usual relationship
2025-04-1680.0172.94+0.11near the usual relationship
2025-04-1582.0474.17+0.16near the usual relationship
2025-04-1481.4574.31+0.10near the usual relationship
2025-04-1180.4275.21-0.05near the usual relationship
2025-04-1080.3274.02+0.03near the usual relationship
2025-04-0983.9079.76-0.16near the usual relationship
2025-04-0878.3268.81+0.31near the usual relationship
2025-04-0779.8271.35+0.20near the usual relationship
2025-04-0479.6169.04+0.38near the usual relationship
2025-04-0385.1975.26+0.26near the usual relationship
2025-04-0287.3189.20-0.60ROKU ahead
2025-04-0187.5788.17-0.52ROKU ahead
2025-03-3188.0087.97-0.48near the usual relationship
2025-03-2887.3490.53-0.70ROKU ahead
2025-03-2789.1294.98-0.87ROKU ahead
2025-03-2689.1297.25-1.02ROKU ahead
2025-03-2588.10102.07-1.38ROKU ahead
2025-03-2487.29101.45-1.41ROKU ahead
2025-03-2187.6597.78-1.18ROKU ahead
2025-03-2087.0592.19-0.88ROKU ahead
2025-03-1986.0790.10-0.82ROKU ahead
2025-03-1885.8884.13-0.43near the usual relationship
2025-03-1785.2686.99-0.68ROKU ahead
2025-03-1484.5084.65-0.57ROKU ahead
2025-03-1382.7684.46-0.69ROKU ahead
2025-03-1283.9388.62-0.90ROKU ahead
2025-03-1185.7486.97-0.67ROKU ahead
2025-03-1086.1288.86-0.77ROKU ahead
2025-03-0789.6595.75-0.98ROKU ahead
2025-03-0686.5099.41-1.43ROKU ahead
2025-03-0584.81106.24-1.96ROKU ahead
2025-03-0484.66100.42-1.65ROKU ahead
2025-03-0385.81100.24-1.58ROKU ahead
2025-02-2885.57104.30-1.85ROKU ahead
2025-02-2784.40101.77-1.81ROKU ahead
2025-02-2683.71106.87-2.18ROKU ahead
2025-02-2585.50107.11-2.09ROKU ahead
2025-02-2486.57113.95-2.43ROKU ahead
2025-02-2186.43110.98-2.31ROKU ahead
2025-02-2086.84115.89-2.60ROKU ahead
2025-02-1987.00115.41-2.58ROKU ahead
2025-02-1886.69119.65-2.87ROKU ahead
2025-02-1484.40123.73-3.33ROKU ahead
2025-02-1384.38108.41-2.47ROKU ahead
2025-02-1283.23105.88-2.41ROKU ahead
2025-02-1184.02103.35-2.19ROKU ahead
2025-02-1082.21105.66-2.50ROKU ahead
2025-02-0781.97106.16-2.58ROKU ahead
2025-02-0682.21101.26-2.26ROKU ahead
2025-02-0580.94101.97-2.44ROKU ahead
2025-02-0480.01100.11-2.43ROKU ahead
2025-02-0379.1698.79-2.44ROKU ahead
2025-01-3180.28103.36-2.70ROKU ahead
2025-01-3079.30106.51-3.05ROKU ahead
2025-01-2989.10103.13-1.99ROKU ahead
2025-01-2889.55102.84-1.95ROKU ahead
2025-01-2791.18100.17-1.63ROKU ahead
2025-01-2489.72101.52-1.85ROKU ahead
2025-01-2389.36104.63-2.12ROKU ahead
2025-01-2288.5099.41-1.82ROKU ahead
2025-01-2188.1799.59-1.87ROKU ahead
2025-01-1787.2494.78-1.59ROKU ahead
2025-01-1686.6093.87-1.57ROKU ahead
2025-01-1587.0595.58-1.67ROKU ahead
2025-01-1486.7693.42-1.53ROKU ahead
2025-01-1386.9395.74-1.70ROKU ahead
2025-01-1086.7298.90-1.97ROKU ahead
2025-01-0888.65103.66-2.16ROKU ahead
2025-01-0788.6797.40-1.69ROKU ahead
2025-01-0689.4199.80-1.82ROKU ahead
2025-01-0389.8496.64-1.54ROKU ahead
2025-01-0289.2493.03-1.30ROKU ahead
2024-12-3189.5192.84-1.26ROKU ahead
2024-12-3089.1793.53-1.34ROKU ahead
2024-12-2790.4696.20-1.44ROKU ahead
2024-12-2691.2299.26-1.60ROKU ahead
2024-12-2491.5899.36-1.58ROKU ahead
2024-12-2390.5898.41-1.59ROKU ahead
2024-12-2091.15100.65-1.72ROKU ahead
2024-12-1989.2097.95-1.67ROKU ahead
2024-12-1890.2998.03-1.59ROKU ahead
2024-12-1792.54104.15-1.85ROKU ahead
2024-12-1692.68104.21-1.84ROKU ahead
2024-12-1395.21103.65-1.58ROKU ahead
2024-12-1295.97102.29-1.41ROKU ahead
2024-12-1194.71102.93-1.54ROKU ahead
2024-12-1094.28102.19-1.50ROKU ahead
2024-12-0993.13105.06-1.77ROKU ahead
2024-12-06102.91105.06-1.04ROKU ahead
2024-12-05102.05102.45-0.90ROKU ahead
2024-12-04101.48103.58-1.00ROKU ahead
2024-12-03102.2294.53-0.31near the usual relationship
2024-12-02103.2496.23-0.35near the usual relationship
2024-11-29103.0186.21+0.37near the usual relationship
2024-11-27101.5084.56+0.41near the usual relationship
2024-11-26101.6982.82+0.56CMCSA ahead
2024-11-25103.0385.20+0.47near the usual relationship
2024-11-22103.6786.42+0.43near the usual relationship
2024-11-21103.7485.77+0.48near the usual relationship
2024-11-20102.5385.81+0.41near the usual relationship
2024-11-19100.9391.93-0.11near the usual relationship
2024-11-18102.5592.46-0.04near the usual relationship
2024-11-15102.2786.01+0.40near the usual relationship
2024-11-14103.7092.82+0.01near the usual relationship
2024-11-13104.7293.93+0.01near the usual relationship
2024-11-12105.0395.69-0.09near the usual relationship
2024-11-11105.4196.32-0.10near the usual relationship
2024-11-08104.7292.19+0.13near the usual relationship
2024-11-07105.3989.96+0.32near the usual relationship
2024-11-06107.6690.26+0.44near the usual relationship
2024-11-05101.5087.01+0.31near the usual relationship
2024-11-04101.4383.90+0.53CMCSA ahead
2024-11-01103.8982.05+0.81CMCSA ahead
2024-10-31104.1580.03+0.98CMCSA ahead
2024-10-30100.7496.80-0.39near the usual relationship
2024-10-29100.3395.43-0.34near the usual relationship
2024-10-2899.7994.98-0.35near the usual relationship
2024-10-2599.3694.01-0.32near the usual relationship
2024-10-2499.3392.47-0.22near the usual relationship
2024-10-2399.0991.79-0.20near the usual relationship
2024-10-2299.0895.90-0.47near the usual relationship
2024-10-2196.6696.17-0.64ROKU ahead
2024-10-18100.00100.00-0.67ROKU ahead

One-day company-specific moves (4+ standard deviations, which block ideas for 10 sessions): Oct 31, 2024 (CMCSA +3.4%, ROKU -17.3%); Apr 24, 2026 (CMCSA -12.9%, ROKU +0.2%); Jun 12, 2026 (CMCSA +2.2%, ROKU +20.1%). Upcoming earnings: ROKU Oct 29, 2026 (not-supplied); ROKU Nov 2, 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

CMCSA and ROKU at a glance

CMCSA Comcast Corporation

Listing
Nasdaq · SEC CIK 1166691
Industry
Cable & Other Pay Television Services · SIC 4841 Cable & Other Pay Television Services
Market value
$77.7B
Price history
2,521 daily closes, Oct 12, 2016 to Oct 22, 2026

ROKU Roku Inc.

Listing
Nasdaq · SEC CIK 1428439
Industry
Cable & Other Pay Television Services · SIC 4841 Cable & Other Pay Television Services
Market value
$23.1B
Price history
2,279 daily closes, Sep 28, 2017 to Oct 22, 2026

Daily prices: Nasdaq.com. Filings and industry codes: SEC EDGAR. Earnings dates: Nasdaq earnings calendar.

Related
All pairs →
PairStatusAhead nowIndustry
ROKU / RCIWatchlistROKU by 1.56 sdCable & Other Pay Television Services
CMCSA / RCIWatchlistRCI by 0.61 sdCable & Other Pay Television Services

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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.