Wallsti
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CMCSA

Comcast Corporation · Communication Services · Telecom Services
TECHSellZACKSSell R500#381 today
$21.57 -0.60% today · -1.55% 1W
Oct 2 close or latest
PreviewWhy it's moving

Underperforming without a clear catalyst yet

Assembled from Wallsti's own signals.

After each kind of event

EventEvents1 day1 week1 month1 quarter
Any day 1,255 0.0%#443 H -0.1%#472 H -0.9%#483 H -3.2%#480 M
Big drop (-2.1% or worse) 66 +0.2%#182 H +0.3%#324 H 0.0%#365 H -1.1%#452 M
Big gain (+1.8% or better) 65 +0.1%#232 H +0.4%#219 H -0.5%#471 H -0.3%#460 M
Earnings beat 20 +0.6%#152 H +1.4%#34 H +1.0%#282 H -3.7%#450 M
Earnings miss — — — — —
52-week high 3 +0.5%#59 L -0.6%#301 L -1.8%#288 L -10.6%–
52-week low 10 +0.6%#54 M +1.2%#76 M +3.8%#36 M +6.8%#108 L
Crossed above 200-day avg 11 -0.6%#473 M -0.7%#395 M +1.6%#229 M -5.4%#457 L
Crossed below 200-day avg 10 +0.6%#126 M -0.2%#375 M +1.6%#219 M -5.9%#416 L
RSI oversold 17 +1.2%#9 M +0.3%#358 M +2.8%#178 M -0.4%#438 M
RSI overbought 10 -0.3%#389 M -0.4%#286 M -1.9%#436 M -6.7%#371 M
Mention spike (Trendy) — — — — —
Analyst upgrade — — — — —
Analyst downgrade — — — — —
Insider buy — — — — —
Insider unplanned sale — — — — —

Median gain from the close of the session the event was known, over each holding period; #rank among the S&P 500 stocks after the same kind of event (#1 = best). "Big" is CMCSA's own: its worst / best 10% of days over the prior 2 years. Highlighted: happening in the latest session.

Big gain (+1.8% or better)

A daily rise among the stock's own best 10% of the prior 2 years.

HoldingEventsMedian (likely range)ConfidenceRankUpvs SPYRange of outcomes (worst · 25–75% · median · best)vs S&P 500 stocks (their medians)
1 day 65 +0.12% (-0.3 to +0.5) High #232 of 500 52% -0.17%
1 week 65 +0.43% (-0.6 to +0.7) High #219 of 500 51% -0.85%
1 month 64 ≈41 indep. -0.50% (-1.3 to +1.4) High #471 of 500 48% -2.03%
1 quarter 59 ≈15 indep. -0.33% (-2.9 to +2.8) Medium #460 of 499 47% -3.19%

Range of outcomes: all of CMCSA's big gains in the past 5 years, from the worst to the best result over each holding period; the box holds the middle half, the tick is the median. A wide box means the median alone says little. Hover the median for the average.

Big gain by trend

When it happenedEvents1 day1 week1 month1 quarter
Long trendAbove its 200-day avg 18 +0.1%M vs 0.0% +0.6%M vs -0.2% -1.2%M vs -0.9% -1.5%M vs -2.3%
Below its 200-day avg now 47 +0.1%H vs 0.0% -0.1%H vs 0.0% +1.2%H vs +0.4% +1.3%M vs +0.6%
Medium trendAbove its 50-day avg 36 +0.2%H vs 0.0% -0.3%H vs +0.2% -0.4%H vs -0.8% -1.4%M vs -2.8%
Below its 50-day avg now 29 +0.1%H vs 0.0% +0.5%H vs -0.1% -0.7%H vs -0.7% 0.0%M vs -2.3%
Short trendAbove its 20-day avg 42 +0.4%H vs 0.0% +0.2%H vs -0.1% -0.5%H vs -0.8% -1.4%M vs -4.4%
Below its 20-day avg now 23 -0.6%H vs 0.0% +0.4%H vs -0.1% +0.1%H vs -0.9% +0.5%M vs -1.4%

The same event split by where CMCSA stood against its 200-, 50- and 20-day averages when it happened (a dip in an uptrend vs a falling knife); "vs" is the plain any-day median in that trend; "now" marks where it stands today. Splitting halves the evidence, so watch the confidence letters: H / M / L.

Latest big gains

EventEntry1 day1 week1 month1 quarter
Sep 10, 2026 Sep 10 @ $25.17 +2.4% on the day (line +1.8%) +0.1% -9.0% … …
Aug 28, 2026 Aug 28 @ $27.06 +2.5% on the day (line +1.8%) -1.6% -2.1% -20.2% …
Aug 11, 2026 Aug 11 @ $25.65 +1.8% on the day (line +1.7%) -0.7% +2.1% -1.9% …
Aug 3, 2026 Aug 3 @ $24.56 +2.5% on the day (line +1.7%) +1.5% +2.6% +7.1% …
Jul 24, 2026 Jul 24 @ $22.30 +1.7% on the day (line +1.7%) +2.2% +7.4% +21.2% …
Jul 16, 2026 Jul 16 @ $24.10 +2.6% on the day (line +1.7%) -1.3% -9.0% +8.6% …
Jun 23, 2026 Jun 23 @ $22.49 +2.1% on the day (line +1.7%) -0.7% +7.7% -2.5% -0.3%
Jun 5, 2026 Jun 5 @ $23.50 +2.1% on the day (line +1.7%) -0.3% +2.9% -1.3% +12.7%
Apr 16, 2026 Apr 16 @ $28.96 +3.7% on the day (line +1.7%) +1.0% +7.8% -15.6% -17.8%
Mar 30, 2026 Mar 30 @ $28.18 +2.0% on the day (line +1.7%) -0.7% -2.7% -6.3% -14.1%
Mar 4, 2026 Mar 4 @ $31.29 +3.5% on the day (line +1.7%) -1.5% -4.7% -12.0% -25.9%
Feb 10, 2026 Feb 10 @ $31.51 +2.2% on the day (line +1.7%) +0.5% -2.2% -6.7% -22.0%
Jan 29, 2026 Jan 29 @ $28.52 +2.9% on the day (line +1.7%) +1.7% +5.5% +5.4% -6.4%
Jan 21, 2026 Jan 21 @ $28.17 +2.6% on the day (line +1.7%) +1.2% -1.7% +8.5% +2.8%
Jan 7, 2026 Jan 7 @ $26.89 +1.8% on the day (line +1.7%) +1.1% +3.1% +13.8% +3.9%

Aftermath: entry is the close of the first session the event was fully known (the same session for price moves, the reaction session for earnings, the next session for Reddit, analyst and insider events, which are dated by day). Repeats within a few sessions count as one event. Past performance after an event says nothing certain about the next one. Not advice.