Free Trial
Tada emoji MarketBeat All Access — Now Just $5.00 for 5 Weeks

Comcast (CMCSA) Short Interest Ratio & Short Volume

Comcast logo
$33.46 +0.56 (+1.69%)
As of 01:26 PM Eastern
This is a fair market value price provided by Polygon.io. Learn more.
Compare

Comcast Short Interest Data

Comcast (CMCSA) has a short interest of 45.25 million shares, representing 1.24% of the float (the number of shares available for trading by the public). This marks a -8.10% decrease in short interest from the previous month. The short interest ratio (days to cover) is 2.2, indicating that it would take 2.2 days of the average trading volume of 24.31 million shares to cover all short positions.

Current Short Interest
45,250,000 shares
Previous Short Interest
49,240,000 shares
Change Vs. Previous Month
-8.10%
Dollar Volume Sold Short
$1.50 billion
Short Interest Ratio
2.2 Days to Cover
Last Record Date
July 31, 2025
Outstanding Shares
3,692,210,000 shares
Short Percent of Float
1.24%
Today's Trading Volume
7,408,307 shares
Average Trading Volume
24,308,264 shares
Today's Volume Vs. Average
30%
Short Selling Comcast?
cover of A Guide to High-Short-Interest Stocks and How to Trade Them ebook

Sign up to receive the latest short interest report for Comcast and its competitors with MarketBeat's FREE newsletter.

Skip Charts & View Short Interest History
Short Interest ChartDays to Cover ChartShort Percent of Float Chart

CMCSA Short Interest Over Time

CMCSA Days to Cover Over Time

CMCSA Percentage of Float Shorted Over Time

Comcast Short Interest History

Export to Excel
Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
7/31/202545,250,000 shares $1.50 billion -8.1%1.2%2.2 $33.23
7/15/202549,240,000 shares $1.71 billion -6.4%1.3%2.4 $34.72
6/30/202552,630,000 shares $1.88 billion +21.6%1.4%2.4 $35.69
6/15/202543,270,000 shares $1.51 billion -9.5%1.2%1.8 $35.01
5/31/202547,820,000 shares $1.65 billion -18.4%1.3%1.9 $34.58
5/15/202558,620,000 shares $2.07 billion +3.8%1.6%2.3 $35.33
4/30/202556,480,000 shares $1.93 billion +7.9%1.5%2.1 $34.20
4/15/202552,360,000 shares $1.80 billion -6.3%1.4%1.8 $34.40
3/31/202555,870,000 shares $2.06 billion -6.5%1.5%2 $36.90
3/15/202559,770,000 shares $2.12 billion +14.8%1.6%2.2 $35.43
2/28/202552,050,000 shares $1.87 billion +0.7%1.4%2 $35.90
2/15/202551,690,000 shares $1.83 billion -4.1%1.4%2.1 $35.39
1/31/202553,910,000 shares $1.81 billion -4.9%1.5%2.3 $33.66
1/15/202556,700,000 shares $2.07 billion +6.0%1.5%2.7 $36.50
12/31/202453,500,000 shares $2.01 billion +7.0%1.4%2.7 $37.53
12/15/202449,990,000 shares $2.00 billion -9.4%1.3%2.6 $39.92
11/30/202455,180,000 shares $2.38 billion -4.6%1.5%2.9 $43.19
11/15/202457,850,000 shares $2.48 billion -5.6%1.5%3.1 $42.88
10/31/202461,280,000 shares $2.68 billion +6.0%1.6%3.4 $43.67
10/15/202457,790,000 shares $2.43 billion +13.6%1.5%3.3 $42.11
9/30/202450,870,000 shares $2.12 billion -2.9%1.3%2.7 $41.77
9/15/202452,410,000 shares $2.07 billion +1.2%1.4%2.8 $39.55
8/31/202451,780,000 shares $2.05 billion -3.0%1.4%2.7 $39.57
8/15/202453,370,000 shares $2.11 billion -4.3%1.4%2.8 $39.52
7/31/202455,780,000 shares $2.30 billion -4.7%1.5%2.8 $41.27
7/15/202458,550,000 shares $2.28 billion +14.7%1.5%2.9 $38.94
6/30/202451,030,000 shares $2.00 billion -3.5%1.3%2.5 $39.16
6/15/202452,890,000 shares $1.98 billion +0.2%1.4%2.6 $37.44
5/31/202452,790,000 shares $2.11 billion -4.6%1.4%2.6 $40.03
5/15/202455,360,000 shares $2.17 billion +0.9%1.4%2.7 $39.25
4/30/202454,880,000 shares $2.09 billion +2.6%1.4%2.5 $38.11
4/15/202453,510,000 shares $2.11 billion +14.4%1.4%2.5 $39.43
3/31/202446,790,000 shares $2.03 billion -3.0%1.2%2.3 $43.35
3/15/202448,240,000 shares $2.06 billion +0.3%1.2%2.5 $42.77
2/29/202448,090,000 shares $2.06 billion -6.0%1.2%2.4 $42.85
2/15/202451,150,000 shares $2.14 billion +25.2%1.3%2.6 $41.80
1/31/202440,860,000 shares $1.90 billion -3.5%1.0%2.2 $46.54
1/15/202442,320,000 shares $1.82 billion +0.4%1.1%2.2 $42.99
12/31/202342,140,000 shares $1.85 billion -19.7%1.1%2.2 $43.85
12/15/202352,470,000 shares $2.33 billion +6.4%1.3%2.8 $44.48
One stock to replace Nvidia (Ad)

Investing Legend Hints the End May be Near for These 3 Iconic Stocks One company to replace Amazon… another to rival Tesla… and a third to upset Nvidia. These little-known stocks are poised to overtake the three reigning tech darlings in a move that could completely reorder the top dogs of the stock market. Eric Fry gives away names, tickers and full analysis in this first-ever free broadcast.

Click to get the full details on Eric Fry's "Nvidia alternative" right here.
11/30/202349,310,000 shares $2.07 billion +10.0%1.2%2.6 $41.89
11/15/202344,830,000 shares $1.91 billion -1.8%1.1%2.4 $42.53
10/31/202345,670,000 shares $1.89 billion -24.6%1.2%2.5 $41.29
10/15/202360,590,000 shares $2.65 billion +55.5%1.5%3.5 $43.81
9/30/202338,970,000 shares $1.73 billion -4.3%1.0%2.2 $44.34
9/15/202340,730,000 shares $1.85 billion -7.7%1.0%2.3 $45.34
8/31/202344,120,000 shares $2.06 billion +15.7%1.1%2.6 $46.76
8/15/202338,140,000 shares $1.79 billion +7.3%0.9%2.1 $47.03
7/31/202335,550,000 shares $1.61 billion -0.5%0.9%1.9 $45.26
7/15/202335,720,000 shares $1.50 billion +4.2%0.9%1.9 $42.01
6/30/202334,270,000 shares $1.42 billion -11.8%0.8%1.9 $41.55
6/15/202338,840,000 shares $1.61 billion +2.6%0.9%2.1 $41.47
5/31/202337,850,000 shares $1.49 billion -5.8%0.9%1.9 $39.35
5/15/202340,170,000 shares $1.61 billion -0.9%1.0%2.2 $40.20
4/30/202340,540,000 shares $1.68 billion +2.0%1.0%2.2 $41.37
4/15/202339,730,000 shares $1.51 billion +8.2%1.0%2.1 $37.96
3/31/202336,730,000 shares $1.39 billion -22.4%0.9%1.9 $37.91
3/15/202347,330,000 shares $1.70 billion +12.9%1.1%2.4 $35.89
2/28/202341,940,000 shares $1.56 billion -2.3%1.0%2 $37.17
2/15/202342,910,000 shares $1.69 billion -20.0%1.0%2 $39.42
1/31/202353,640,000 shares $2.11 billion -18.6%1.3%2.4 $39.35
1/15/202365,890,000 shares $2.57 billion +0.4%1.5%2.7 $38.93
12/30/202265,630,000 shares $2.30 billion -11.8%1.5%2.6 $34.97
12/15/202274,370,000 shares $2.57 billion +4.4%1.7%2.7 $34.61
11/30/202271,210,000 shares $2.61 billion -4.2%1.7%2.6 $36.64
11/15/202274,360,000 shares $2.55 billion +1.0%1.7%2.6 $34.28
10/31/202273,600,000 shares $2.34 billion -7.4%1.7%2.7 $31.74
10/15/202279,500,000 shares $2.39 billion +6.1%1.8%2.9 $30.05
9/30/202274,910,000 shares $2.20 billion -2.2%1.7%2.9 $29.33
9/15/202276,570,000 shares $2.60 billion +6.1%1.8%3.2 $34.00
8/31/202272,190,000 shares $2.61 billion +0.8%1.7%3.1 $36.19
8/15/202271,640,000 shares $2.91 billion +1.7%1.6%3.2 $40.57
7/31/202270,440,000 shares $2.64 billion +3.5%1.6%3 $37.52
7/15/202268,070,000 shares $2.78 billion +4.2%1.5%2.8 $40.90
6/30/202265,340,000 shares $2.56 billion -13.1%1.5%2.7 $39.24
6/15/202275,150,000 shares $3.02 billion -1.7%1.7%3.1 $40.13
5/31/202276,450,000 shares $3.39 billion +9.6%1.7%3.4 $44.28
5/15/202269,740,000 shares $2.89 billion +6.8%1.6%2.9 $41.48
4/30/202265,330,000 shares $2.60 billion -3.4%1.5%2.8 $39.76
4/15/202267,660,000 shares $3.22 billion +1.8%1.5%3 $47.58
3/31/202266,490,000 shares $3.11 billion -4.7%1.5%2.9 $46.82
3/15/202269,790,000 shares $3.18 billion -2.7%1.6%3.1 $45.54
2/28/202271,700,000 shares $3.35 billion +8.3%1.6%2.9 $46.76
2/15/202266,210,000 shares $3.18 billion -6.9%1.5%2.8 $48.05
1/31/202271,130,000 shares $3.56 billion +6.1%1.6%3.2 $49.99
1/15/202267,050,000 shares $3.47 billion +0.9%N/A0 $51.68
12/31/202166,450,000 shares $3.34 billion -1.0%1.5%3.3 $50.33
12/15/202167,110,000 shares $3.23 billion +1.9%1.5%3.3 $48.18
11/30/202165,870,000 shares $3.29 billion -3.2%1.5%3.5 $49.98
11/15/202168,060,000 shares $3.63 billion -0.1%1.5%4 $53.38
One stock to replace Nvidia (Ad)

Investing Legend Hints the End May be Near for These 3 Iconic Stocks One company to replace Amazon… another to rival Tesla… and a third to upset Nvidia. These little-known stocks are poised to overtake the three reigning tech darlings in a move that could completely reorder the top dogs of the stock market. Eric Fry gives away names, tickers and full analysis in this first-ever free broadcast.

Click to get the full details on Eric Fry's "Nvidia alternative" right here.
10/29/202168,130,000 shares $3.50 billion -8.3%1.5%4.2 $51.43
10/15/202174,320,000 shares $4.01 billion +1.8%N/A4.8 $54.02
9/30/202173,000,000 shares $4.08 billion +7.1%1.6%4.9 $55.93
9/15/202168,190,000 shares $3.89 billion -0.4%1.5%4.9 $57.00
8/31/202168,480,000 shares $4.16 billion +0.3%1.5%5.3 $60.68
8/13/202168,300,000 shares $4.05 billion -2.3%1.5%5.1 $59.32
7/30/202169,910,000 shares $4.11 billion -4.1%1.5%4.6 $58.83
7/15/202172,900,000 shares $4.22 billion +6.1%1.6%4.7 $57.95
6/30/202168,720,000 shares $3.92 billion -3.6%1.5%4.3 $57.02
6/15/202171,270,000 shares $4.09 billion 0.0%1.6%4.3 $57.32
5/28/202171,280,000 shares $4.09 billion -2.8%1.6%4.3 $57.34
5/14/202173,320,000 shares $4.21 billion +1.7%1.6%4 $57.39
4/30/202172,100,000 shares $4.07 billion +1.2%1.6%4.1 $56.40
4/15/202171,230,000 shares $3.80 billion -7.6%1.6%4 $53.30
3/31/202177,110,000 shares $4.24 billion -6.2%1.7%4.2 $54.98
3/15/202182,190,000 shares $4.69 billion +7.8%1.8%4.5 $57.09
2/26/202176,230,000 shares $3.98 billion -0.6%1.7%4.3 $52.24
2/12/202176,700,000 shares $4.08 billion -2.6%1.7%4.5 $53.23
1/29/202178,770,000 shares $4.06 billion -0.6%1.7%4.4 $51.60
1/15/202179,220,000 shares $3.93 billion +2.7%1.8%4.4 $49.58
12/31/202077,140,000 shares $3.95 billion +2.6%1.7%4.4 $51.21
12/15/202075,220,000 shares $3.84 billion -12.4%1.7%4.4 $50.99
11/30/202085,850,000 shares $4.44 billion +5.5%1.9%4.7 $51.75
11/15/202081,400,000 shares $3.99 billion -1.3%1.8%4.4 $49.00
10/30/202082,430,000 shares $3.55 billion +4.2%1.8%4.8 $43.06
10/15/202079,140,000 shares $3.58 billion -1.3%1.8%4.7 $45.28
9/30/202080,160,000 shares $3.71 billion +4.8%1.8%4.6 $46.26
9/15/202076,470,000 shares $3.55 billion +0.0%1.7%4.2 $46.46
8/31/202076,440,000 shares $3.43 billion -2.5%1.7%4.3 $44.81

CMCSA Short Interest - Frequently Asked Questions

What is Comcast's current short interest?

Short interest is the volume of Comcast shares that have been sold short but have not yet been closed out or covered. As of July 31st, investors have sold 45,250,000 shares of CMCSA short. 1.24% of Comcast's shares are currently sold short. Learn More on Comcast's current short interest.

What is a good short interest ratio for Comcast?

The short interest ratio, also known as the "days to cover ratio", is calculated by dividing the number of shares of a stock sold short divided by its average trading volume. A short interest ratio ranging between 1 and 4 generally indicates strong positive sentiment about a stock and a lack of short sellers. A short interest ratio of 10 or greater indicates strong pessimism about a stock. CMCSA shares currently have a short interest ratio of 2.0. Learn More on Comcast's short interest ratio.

Which institutional investors are shorting Comcast?

As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Comcast: Hudson Bay Capital Management LP, Group One Trading LLC, Cubist Systematic Strategies LLC, BNP Paribas Financial Markets, Balyasny Asset Management L.P., Bank of America Corp DE, Jane Street Group LLC, Volterra Technologies LP, Squarepoint Ops LLC, Qube Research & Technologies Ltd, Capula Management Ltd, Walleye Capital LLC, Walleye Trading LLC, Hsbc Holdings PLC, Capital Fund Management S.A., Eisler Capital Management Ltd., JPMorgan Chase & Co., Citigroup Inc., Marathon Trading Investment Management LLC, Credit Industriel ET Commercial, Mirae Asset Securities USA Inc., Wolverine Asset Management LLC, Allianz Asset Management GmbH, Credit Industriel ET Commercial, SteelPeak Wealth LLC, IMC Chicago LLC, Quaker Wealth Management LLC, and Jane Street Group LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission.

What is a good short interest percentage for Comcast?

Companies that have a short interest as a percentage of float below 10% indicates positive investor sentiment and few short sellers. Stocks with a short interest percentage above 10% is considered high, suggesting some investors are pessimistic about the stock. Companies with a short interest percentage of 20% or more indicates widespread negative sentiment. 1.24% of Comcast's floating shares are currently sold short.

Is Comcast's short interest increasing or decreasing?

Comcast saw a decrease in short interest in July. As of July 31st, there was short interest totaling 45,250,000 shares, a decrease of 8.1% from the previous total of 49,240,000 shares. Changes in short volume can be used to identify positive and negative investor sentiment. Investors that short sell a stock are betting that its price will decline in the future. An increase in short sale volume suggests bearish (negative) sentiment among investors. A decrease on short sale volume suggests bullish (positive) sentiment.

How does Comcast's short interest compare to its competitors?

1.24% of Comcast's shares are currently sold short. Here is how the short interest of companies compare to Comcast: Amazon.com, Inc. (0.66%), Charter Communications, Inc. (13.36%), Alphabet Inc. (0.32%), Alphabet Inc. (0.54%), Netflix, Inc. (1.51%), Paramount Global (13.40%), Warner Bros. Discovery, Inc. (4.28%), The Walt Disney Company (1.12%), AT&T Inc. (1.31%), Sirius XM Holdings Inc. (7.67%),

Which stocks are the most shorted right now?

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($70.87 billion), Invesco QQQ ($30.12 billion), iShares Russell 2000 ETF ($19.85 billion), iShares 20+ Year Treasury Bond ETF ($10.34 billion), MicroStrategy Incorporated ($8.98 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($7.61 billion), SPDR S&P Biotech ETF ($6.81 billion), Invesco S&P 500 Equal Weight ETF ($6.14 billion), Palo Alto Networks, Inc. ($5.97 billion), and Super Micro Computer, Inc. ($5.28 billion). View all of the most shorted stocks.

What does it mean to sell short Comcast stock?

Short selling CMCSA is an investing strategy that aims to generate trading profit from Comcast as its price is falling. CMCSA shares are trading up $0.37 today. To short a stock, an investor borrows shares, sells them and buys the shares back on the public market later to return it to the lender. Short sellers are betting that a stock will decline in price. If the stock does drop after selling, the short seller buys it back at a lower price and returns it to the lender. The difference between the sell price and the buy price is the trader's profit.

How does a short squeeze work against Comcast?

A short squeeze for Comcast occurs when it has a large amount of short interest and its stock increases in price. This forces short sellers to cover their short interest positions by buying actual shares of CMCSA, which in turn drives the price of the stock up even further.

How often is Comcast's short interest reported?

Short interest is typically published by a stock exchange once per month. However, NASDAQ publishes a report for U.S. stocks, including CMCSA, twice per month. The most recent reporting period available is July, 31 2025.



Related Companies
Short Interest Tools

This page (NASDAQ:CMCSA) was last updated on 8/15/2025 by MarketBeat.com Staff
From Our Partners
Trump’s national nightmare is here
Porter Stansberry and Jeff Brown say a new U.S. national emergency is already underway — and it could trigger ...
Porter & Company | Sponsored
Alex’s “Next Magnificent Seven” stocks
The original “Magnificent Seven” turned $7K into $1.18 million. Now, Alex Green has identified AI’s Next Ma...
The Oxford Club | Sponsored
The Robotics Revolution has arrived … and one $7 stock could take off as a result.
Something big is brewing in Washington. According to my research, an executive order from President Trump c...
Weiss Ratings | Sponsored
Altucher: It Looks Like My Trump prediction is coming true
New Hampshire just launched a Strategic Crypto Reserve — and James Altucher says it’s the first sign that “Tru...
Paradigm Press | Sponsored
INVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting Off
Right now, we’re witnessing a monumental shift in the world.
Traders Agency | Sponsored
GENIUS Act: Cancel Your Money?
A new law called the GENIUS Act could quietly trigger the most radical shift in American finance in decades. B...
Priority Gold | Sponsored
Elon’s Secret Social Security Bombshell
To All Americans Born Before April 16th, 1963: Did Trump Just Give The Green Light To Radically RE-DO Social S...
Banyan Hill Publishing | Sponsored
Trump set to Boost Social Security Checks by 400%?
If you're collecting or planning to collect social security... You should see this presentation about Presi...
InvestorPlace | Sponsored