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Stock Splits for Comcast (CMCSA)

Comcast (CMCSA) has undergone 12 stock splits. See the full history with split ratios, dates, and price data.

IPO date

March 17, 1980

Total splits

12

Cumulative multiple

230.66

Split likelihood

Watch

29/100

Stock splits history for Comcast (CMCSA) from 1980 to 2017

Cumulative multiple is the running product of split factors from the oldest row through each date.

  • February 21, 2017x230.6602
  • February 22, 2007x115.3301
  • May 6, 1999x76.8867
  • February 3, 1994x38.4434
  • October 25, 1989x25.6289
  • April 11, 1988x17.0859
  • December 19, 1986x11.3906
  • June 28, 1985x7.5938
  • September 19, 1984x5.0625
  • January 6, 1983x3.375
  • April 13, 1981x2.25
  • May 16, 1980x1.5

Pre-split price is the final regular-session close on a trading day strictly before the split calendar date. Post-split price is the first session open on or after that date. Both values come from unadjusted end-of-day bars for the company's primary listing.

The Type column reflects the data feed's event category (for example stock split vs stock dividend). When the feed labels a generic split but the ratio is reverse (e.g. 1:10), we show reverse stock split. Optional editorial context for a row appears next to the split ratio as an info icon (hover or keyboard focus on desktop; tap on mobile). The same text is listed under Row notes when that block is expanded.

Wondering why some rows show ratios like 51:50 or 2000:1973? Read: stock split ratios explained → How the cumulative column is computed: cumulative split multiplier explained. For ratios driven by spin-offs, see spin-offs explained. Or read the methodology for how prices and cumulative multiples are computed.

Split likelihood score for Comcast (CMCSA)

Computed through July 28, 2026.

Watch
29/100
FactorDetailContribution
Absolute pricePrice $22.8 → 8% of the price band+4
Personal split thresholdPrice is 40% of the company's typical pre-split price ($56.77)+4
Split track record12 prior splits on record+20
Proximity to 52-week highPrice is 69% of the 52-week high+1

An educational, rule-based score — not a prediction of any split and not investment advice. Splits are at the sole discretion of a company's board. How it's calculated · Will a stock split?

Stock splits — Communication Services

Communication Services peers of Comcast Corporation (CMCSA), sorted by number of splits.

Frequently asked questions