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Sirius XM (SIRI) Short Interest Ratio & Short Volume

Sirius XM logo
$28.69 +0.30 (+1.06%)
As of 08/21/2026 04:00 PM Eastern
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Sirius XM Short Interest Overview

As of July 31, 2026, Sirius XM (SIRI) had a short interest of 34.74 million shares sold short, representing 10.65% of the public float. This marks a -5.40% decrease in short interest since the prior report. The short interest ratio (days to cover) is 8.6, meaning it would take 8.6 days of the average trading volume of 4.43 million shares to cover all short positions.

Current Short Interest
34,736,975 shares
Previous Short Interest
36,718,070 shares
Change Vs. Previous Month
-5.40%
Dollar Volume Sold Short
$1.03 billion
Short Interest Ratio
8.6 Days to Cover
Last Record Date
July 31, 2026
Outstanding Shares
337,070,000 shares
Short Percent of Float
10.65%
Today's Trading Volume
2,576,910 shares
Average Trading Volume
4,426,261 shares
Today's Volume Vs. Average
58%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

SIRI Short Interest Over Time

SIRI Days to Cover Over Time

SIRI Percentage of Float Shorted Over Time

Sirius XM Tesla Short Interest History & Recent Changes

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Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
7/31/202634,736,975 shares $1.03 billion -5.4%10.7%8.61 $29.62
7/15/202636,718,070 shares $1.13 billion +0.8%11.3%9.54 $30.65
6/30/202636,423,582 shares $1.08 billion -0.4%11.2%7.21 $29.54
6/15/202636,583,670 shares $1.00 billion +30.6%11.2%4.8 $27.46
5/29/202628,005,913 shares $826.73 million -4.2%8.6%5.8 $29.52
5/15/202629,222,226 shares $754.81 million +1.3%9.0%7.74 $25.83
4/30/202628,852,679 shares $777.29 million -7.7%8.9%3.39 $26.94
4/15/202631,267,952 shares $757.00 million -0.8%9.6%8.54 $24.21
3/31/202631,524,853 shares $727.59 million +6.3%9.7%9.55 $23.08
3/13/202629,650,649 shares $652.02 million +2.7%8.9%7.13 $21.99
2/27/202628,880,041 shares $634.21 million -5.6%8.7%8.73 $21.96
2/13/202630,603,034 shares $651.69 million -6.5%9.4%3.54 $21.30
1/30/202632,713,298 shares $665.72 million -4.4%9.8%6.9 $20.35
1/15/202634,233,647 shares $715.83 million +11.2%10.3%8.06 $20.91
12/31/202530,783,855 shares $615.68 million +3.4%9.2%8.14 $20.00
12/15/202529,776,328 shares $641.38 million +3.2%8.9%8.68 $21.54
11/28/202528,864,869 shares $613.23 million +4.2%8.6%7.58 $21.25
11/14/202527,715,211 shares $596.15 million -5.4%8.5%8.18 $21.51
10/31/202529,290,706 shares $635.32 million +18.0%9.0%7.12 $21.69
10/15/202524,830,000 shares $543.28 million -6.6%7.5%6.7 $21.88
9/30/202526,570,000 shares $618.28 million +0.8%8.1%7.3 $23.27
9/15/202526,370,000 shares $618.11 million -0.4%8.0%7.2 $23.44
8/31/202526,480,000 shares $625.99 million +4.0%8.0%7.1 $23.64
8/15/202525,470,000 shares $586.57 million +0.6%7.7%7 $23.03
7/31/202525,320,000 shares $534.76 million -7.1%7.7%7.2 $21.12
7/15/202527,250,000 shares $649.91 million -7.1%8.2%8.3 $23.85
6/30/202529,320,000 shares $673.48 million +1.2%9.5%7.8 $22.97
6/15/202528,960,000 shares $616.56 million +0.4%9.4%7.3 $21.29
5/31/202528,860,000 shares $625.97 million +0.5%9.3%6.8 $21.69
5/15/202528,720,000 shares $642.18 million -0.5%9.3%6.4 $22.36
4/30/202528,850,000 shares $617.97 million +1.7%9.3%5.9 $21.42
4/15/202528,360,000 shares $579.11 million +2.9%9.2%5.4 $20.42
3/31/202527,550,000 shares $621.25 million +2.1%8.9%5 $22.55
3/15/202526,980,000 shares $611.64 million +7.1%8.7%4.9 $22.67
2/28/202525,190,000 shares $609.35 million +10.9%8.1%4.3 $24.19
2/15/202522,720,000 shares $615.94 million +17.7%7.3%4 $27.11
1/31/202519,300,000 shares $463.39 million -0.1%6.2%3.4 $24.01
1/15/202519,320,000 shares $416.54 million +2.9%6.2%3.5 $21.56
12/31/202418,780,000 shares $428.18 million -2.8%5.6%3 $22.80
12/15/202419,320,000 shares $465.81 million -7.0%5.8%3.1 $24.11
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11/30/202420,770,000 shares $559.75 million +5.8%6.2%3.1 $26.95
11/15/202419,630,000 shares $506.45 million -12.9%5.9%3.2 $25.80
10/31/202422,540,000 shares $600.92 million +38.4%6.7%3.9 $26.66
10/15/202416,290,000 shares $441.13 million -2.0%4.9%3.3 $27.08
9/30/202416,620,000 shares $393.06 million +7.3%5.0%3.9 $23.65
9/15/202415,490,000 shares $379.66 million +14.8%4.6%3.5 $24.51
8/31/202413,490,000 shares $44.38 million -89.6%N/A3.2 $3.29
8/15/2024129,520,000 shares $391.15 million -7.5%20.6%3.3 $3.02
7/31/2024139,960,000 shares $482.86 million -15.9%22.3%3.5 $3.45
7/15/2024166,360,000 shares $647.14 million +6.3%26.5%4.2 $3.89
6/30/2024156,540,000 shares $443.01 million +2.1%24.9%4.2 $2.83
6/15/2024153,390,000 shares $400.35 million -1.3%24.4%5.1 $2.61
5/31/2024155,420,000 shares $438.28 million +7.9%24.8%7.5 $2.82
5/15/2024144,110,000 shares $438.09 million +10.5%22.9%7.9 $3.04
4/30/2024130,380,000 shares $383.32 million +2.5%20.9%7.7 $2.94
4/15/2024127,170,000 shares $404.40 million -8.3%20.4%8.2 $3.18
3/31/2024138,680,000 shares $538.08 million +5.3%22.2%9.5 $3.88
3/15/2024131,730,000 shares $533.51 million -13.2%21.1%9.8 $4.05
2/29/2024151,700,000 shares $670.51 million -4.5%24.4%11.1 $4.42
2/15/2024158,820,000 shares $762.34 million -4.5%25.6%12.3 $4.80
1/31/2024166,280,000 shares $846.37 million -4.2%26.8%13.1 $5.09
1/15/2024173,600,000 shares $904.46 million -0.6%27.9%13.7 $5.21
12/31/2023174,610,000 shares $955.12 million -1.3%28.1%13.9 $5.47
12/15/2023176,900,000 shares $955.26 million +0.3%28.5%12.2 $5.40
11/30/2023176,300,000 shares $825.08 million -0.2%28.3%11.9 $4.68
11/15/2023176,730,000 shares $917.23 million +3.3%28.4%12.2 $5.19
10/31/2023171,090,000 shares $732.27 million -5.2%27.5%11.5 $4.28
10/15/2023180,490,000 shares $875.38 million +6.4%28.9%11 $4.85
9/30/2023169,610,000 shares $766.64 million +0.7%27.2%7.9 $4.52
9/15/2023168,370,000 shares $671.80 million +1.3%27.0%7.9 $3.99
8/31/2023166,190,000 shares $731.24 million +1.3%25.8%8.1 $4.40
8/15/2023164,050,000 shares $772.68 million +2.3%25.4%7.6 $4.71
7/31/2023160,360,000 shares $817.84 million -19.8%24.8%7.2 $5.10
7/15/2023200,030,000 shares $950.14 million -8.9%30.8%9.3 $4.75
6/30/2023219,450,000 shares $994.11 million +13.0%33.8%13.3 $4.53
6/15/2023194,280,000 shares $744.09 million -5.9%29.9%11.9 $3.83
5/31/2023206,500,000 shares $735.14 million +6.7%30.9%12.7 $3.56
5/15/2023193,540,000 shares $694.81 million -3.6%28.9%11.9 $3.59
4/30/2023200,700,000 shares $762.66 million +7.7%30.0%11.8 $3.80
4/15/2023186,440,000 shares $738.30 million +3.7%27.7%10.8 $3.96
3/31/2023179,750,000 shares $713.61 million +9.7%26.7%10.5 $3.97
3/15/2023163,910,000 shares $596.63 million -7.4%24.4%9.9 $3.64
2/28/2023177,080,000 shares $777.38 million -0.7%26.3%11.3 $4.39
2/15/2023178,390,000 shares $836.65 million +5.5%26.5%12 $4.69
1/31/2023169,040,000 shares $978.74 million -0.7%25.2%11.3 $5.79
1/15/2023170,200,000 shares $1.01 billion +0.3%25.3%12.1 $5.96
12/30/2022169,650,000 shares $990.76 million -10.2%25.2%11.8 $5.84
12/15/2022188,980,000 shares $1.13 billion +1.4%28.1%12.8 $5.97
11/30/2022186,430,000 shares $1.21 billion +2.8%27.6%12.3 $6.49
11/15/2022181,290,000 shares $1.17 billion -5.0%26.8%11.8 $6.47
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10/31/2022190,760,000 shares $1.15 billion +1.3%28.2%12.6 $6.04
10/15/2022188,320,000 shares $1.14 billion -4.6%27.8%12.6 $6.05
9/30/2022197,290,000 shares $1.13 billion -10.9%29.2%13.1 $5.71
9/15/2022221,350,000 shares $1.31 billion +6.6%32.7%14.7 $5.94
8/31/2022207,660,000 shares $1.26 billion +5.7%29.2%13.2 $6.09
8/15/2022196,560,000 shares $1.33 billion -4.8%27.7%12.3 $6.77
7/31/2022206,530,000 shares $1.38 billion +6.3%29.1%11.8 $6.68
7/15/2022194,230,000 shares $1.23 billion +5.0%27.1%10.4 $6.35
6/30/2022184,990,000 shares $1.13 billion -6.3%25.8%10.1 $6.13
6/15/2022197,390,000 shares $1.19 billion +3.0%27.5%10.4 $6.01
5/31/2022191,560,000 shares $1.23 billion -1.1%26.3%10.2 $6.40
5/15/2022193,760,000 shares $1.19 billion -2.4%26.6%9.5 $6.14
4/30/2022198,600,000 shares $1.19 billion +0.2%27.3%9.7 $6.00
4/15/2022198,260,000 shares $1.28 billion -1.0%27.2%9.4 $6.46
3/31/2022200,300,000 shares $1.33 billion -4.5%27.5%9.4 $6.62
3/15/2022209,650,000 shares $1.31 billion +0.9%28.8%9.8 $6.24
2/28/2022207,710,000 shares $1.28 billion +3.3%27.0%10 $6.16
2/15/2022201,000,000 shares $1.25 billion +1.6%26.1%10.1 $6.20
1/31/2022197,830,000 shares $1.26 billion +4.8%25.7%10.6 $6.36
1/15/2022188,750,000 shares $1.17 billion +5.5%24.2%10.9 $6.18
12/31/2021178,900,000 shares $1.14 billion +4.8%22.9%10.7 $6.35
12/15/2021170,780,000 shares $1.09 billion -3.3%21.9%10.3 $6.38
11/30/2021176,650,000 shares $1.08 billion +2.6%21.5%10.5 $6.10
11/15/2021172,250,000 shares $1.14 billion -4.9%21.0%10.9 $6.63
10/29/2021181,130,000 shares $1.10 billion +7.1%21.0%11.4 $6.09
10/15/2021169,140,000 shares $1.02 billion +4.5%19.3%10.4 $6.02
9/30/2021161,930,000 shares $987.77 million -1.3%18.5%9.9 $6.10
9/15/2021163,990,000 shares $990.50 million +4.6%18.8%10.2 $6.04
8/31/2021156,770,000 shares $982.95 million -0.8%17.9%9.6 $6.27

SIRI Short Interest - Frequently Asked Questions

Short interest is the volume of Sirius XM shares that have been sold short but have not yet been closed out or covered. As of July 31st, investors have sold 34,736,975 shares of SIRI short. 10.65% of Sirius XM's shares are currently sold short. Learn More on Sirius XM's current short interest.

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. SIRI shares currently have a short interest ratio of 8.6. Learn More on Sirius XM's short interest ratio.

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. 10.65% of Sirius XM's floating shares are currently sold short.

Sirius XM saw a decline in short interest during the month of July. As of July 31st, there was short interest totaling 34,736,975 shares, a decline of 5.4% from the previous total of 36,718,070 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.

10.65% of Sirius XM's shares are currently sold short. Here is how the short interest of companies compare to Sirius XM: Apple Inc. (0.97%), Spotify Technology (3.15%), Fox Corporation (13.11%), Fox Corporation (3.44%), Nexstar Media Group, Inc. (7.87%), Versant Corporation (3.41%), Newsmax Inc. (13.41%), Sinclair, Inc. (10.36%), Entravision Communications Corporation (6.59%), Gray Media Inc. (5.73%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($70.50 billion), Invesco QQQ ($50.36 billion), iShares Russell 2000 ETF ($21.20 billion), Western Digital Corporation ($13.40 billion), SPDR S&P Biotech ETF ($11.59 billion), Nebius Group N.V. ($11.46 billion), iShares 20+ Year Treasury Bond ETF ($7.84 billion), iShares iBoxx $ High Yield Corporate Bond ETF ($7.51 billion), iShares Semiconductor ETF ($6.37 billion), and Financial Select Sector SPDR Fund ($6.34 billion). View all of the most shorted stocks.

Short selling SIRI is an investing strategy that aims to generate trading profit from Sirius XM as its price is falling. SIRI shares are trading up $0.30 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.

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

Short interest is typically published by a stock exchange once per month. However, NASDAQ publishes a report for U.S. stocks, including SIRI, twice per month. The most recent reporting period available is July, 31 2026.

Understanding short interest metrics can help you assess how traders are positioning around a stock like SIRI:

  • Shares Sold Short: The total number of shares that have been sold by short sellers but have not yet been covered or closed out. A high number may indicate bearish sentiment.
  • Short Float: The percentage of a company’s publicly available shares (or "float") that are sold short. A higher short float suggests a greater portion of the stock is being bet against.
  • Days to Cover (Short Interest Ratio): This estimates how many days it would take short sellers to cover their positions, based on average daily trading volume. Higher values can signal potential for a short squeeze if buying pressure increases.

These metrics are often used by traders to gauge sentiment, volatility risk, and the potential for price movements based on short covering activity.


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Short Interest Tools

Short interest data for NASDAQ:SIRI is sourced from the Financial Industry Regulatory Authority (FINRA), with the most recent report published on 8/11/2026. FINRA publishes updated short interest twice a month.
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