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Spire Global (SPIR) Short Interest Ratio & Short Volume

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$13.17 -0.83 (-5.93%)
As of 08/28/2026 03:57 PM Eastern
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Spire Global Short Interest Overview

As of August 14, 2026, Spire Global (SPIR) had a short interest of 3.77 million shares sold short, representing 11.07% of the public float. This marks a -10.52% decrease in short interest since the prior report. The short interest ratio (days to cover) is 6.3, meaning it would take 6.3 days of the average trading volume of 564,979 shares to cover all short positions.

Current Short Interest
3,766,878 shares
Previous Short Interest
4,209,556 shares
Change Vs. Previous Month
-10.52%
Dollar Volume Sold Short
$52.67 million
Short Interest Ratio
6.3 Days to Cover
Last Record Date
August 14, 2026
Outstanding Shares
39,120,000 shares
Short Percent of Float
11.07%
Today's Trading Volume
500,429 shares
Average Trading Volume
564,979 shares
Today's Volume Vs. Average
89%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

SPIR Short Interest Over Time

SPIR Days to Cover Over Time

SPIR Percentage of Float Shorted Over Time

Spire Global 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
8/14/20263,766,878 shares $52.67 million -10.5%11.1%6.25 $13.98
7/31/20264,209,556 shares $48.27 million -1.3%12.5%4.92 $11.47
7/15/20264,264,763 shares $58.40 million -0.7%12.7%5.02 $13.69
6/30/20264,294,441 shares $79.87 million -3.3%12.8%2.55 $18.60
6/15/20264,440,358 shares $81.92 million +4.9%13.2%3.08 $18.45
5/29/20264,234,344 shares $95.87 million -5.0%12.6%2.45 $22.64
5/15/20264,454,843 shares $89.23 million -22.1%13.2%2.66 $20.03
4/30/20265,719,729 shares $102.01 million -7.4%19.6%3.26 $17.83
4/15/20266,173,856 shares $126.89 million +70.6%18.3%1.66 $20.55
3/31/20263,619,050 shares $45.42 million -3.5%10.8%3.98 $12.55
3/13/20263,750,995 shares $40.69 million +3.8%13.1%7.42 $10.85
2/27/20263,615,079 shares $31.91 million +4.1%12.8%8.75 $8.83
2/13/20263,472,243 shares $32.90 million +3.2%10.3%6.39 $9.47
1/30/20263,364,438 shares $38.59 million -5.1%11.9%3.37 $11.47
1/15/20263,544,927 shares $38.66 million +3.0%12.6%4.47 $10.91
12/31/20253,440,292 shares $25.77 million +3.7%12.2%3.09 $7.49
12/15/20253,316,359 shares $30.12 million -1.3%11.7%8 $9.08
11/28/20253,360,422 shares $27.42 million +22.3%12.0%6.77 $8.16
11/14/20252,747,263 shares $20.58 million +11.3%9.8%3.8 $7.49
10/31/20252,468,056 shares $26.84 million +1.4%8.8%6.74 $10.88
10/15/20252,430,000 shares $33.27 million -13.5%10.2%4.7 $13.69
9/30/20252,810,000 shares $30.87 million -1.8%11.9%5 $10.99
9/15/20252,860,000 shares $28.10 million +13.5%12.1%5 $9.83
8/31/20252,520,000 shares $22.85 million -7.4%10.6%4.2 $9.07
8/15/20252,720,000 shares $24.75 million +7.1%11.5%4.4 $9.10
7/31/20252,540,000 shares $25.44 million -11.8%10.7%4.2 $10.02
7/15/20252,880,000 shares $31.42 million -5.6%12.2%4.5 $10.91
6/30/20253,050,000 shares $36.36 million -1.9%12.9%4.6 $11.92
6/15/20253,110,000 shares $33.92 million -14.3%13.2%4.8 $10.91
5/31/20253,630,000 shares $37.64 million -11.3%15.3%5.7 $10.37
5/15/20254,090,000 shares $47.93 million +13.3%16.8%6.4 $11.72
4/30/20253,610,000 shares $34.01 million +15.3%15.0%4.9 $9.42
4/15/20253,130,000 shares $28.86 million +7.9%13.0%4.4 $9.22
3/31/20252,900,000 shares $23.52 million -0.7%12.0%4 $8.11
3/15/20252,920,000 shares $25.13 million +4.3%12.2%4.6 $8.61
2/28/20252,800,000 shares $31.93 million +11.6%14.0%4.9 $11.41
2/15/20252,510,000 shares $29.45 million +30.7%13.5%4.7 $11.74
1/31/20251,920,000 shares $32.88 million -1.5%10.5%4.7 $17.13
1/15/20251,950,000 shares $26.93 million +2.1%10.6%5.2 $13.81
12/31/20241,910,000 shares $26.87 million +2.1%10.3%6.8 $14.07
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12/15/20241,870,000 shares $25.26 million -9.2%10.1%6.7 $13.51
11/30/20242,060,000 shares $33.66 million -10.4%11.1%7.4 $16.34
11/15/20242,300,000 shares $31.00 million -21.0%12.5%7.9 $13.48
10/31/20242,910,000 shares $28.84 million -8.8%15.8%8.5 $9.91
10/15/20243,190,000 shares $30.94 million -10.6%16.9%8.8 $9.70
9/30/20243,570,000 shares $35.63 million -8.5%18.9%8.9 $9.98
9/15/20243,900,000 shares $36.27 million -4.4%20.6%8 $9.30
8/31/20244,080,000 shares $35.01 million +6.3%21.6%8.3 $8.58
8/15/20243,840,000 shares $25.92 million +3.0%19.5%7.9 $6.75
7/31/20243,730,000 shares $52.03 million -2.1%19.0%8.3 $13.95
7/15/20243,810,000 shares $49.38 million +45.4%18.9%8.7 $12.96
6/30/20242,620,000 shares $28.40 million +9.6%13.3%6.1 $10.84
6/15/20242,390,000 shares $25.14 million +8.6%12.2%5.9 $10.52
5/31/20242,200,000 shares $20.13 million -1.4%11.2%3.5 $9.15
5/15/20242,230,000 shares $25.29 million +21.9%11.3%3.6 $11.34
4/30/20241,830,000 shares $19.11 million +50.0%10.3%3.4 $10.44
4/15/20241,220,000 shares $12.41 million +17.3%6.8%2.3 $10.17
3/31/20241,040,000 shares $12.48 million +10.5%6.4%2.2 $12.00
3/15/2024941,500 shares $11.25 million +38.7%6.4%2.1 $11.95
2/29/2024679,000 shares $8.45 million 0.0%4.3%4.1 $12.44
2/15/2024679,100 shares $8.07 million +15.2%4.5%4.6 $11.88
1/31/2024589,300 shares $4.19 million +11.2%3.9%4.5 $7.11
1/15/2024530,200 shares $3.65 million +36.7%3.6%4.4 $6.89
12/31/2023388,000 shares $3.03 million -21.4%2.6%3.3 $7.82
12/15/2023493,500 shares $3.54 million -31.5%3.3%4.3 $7.17
11/30/2023720,200 shares $3.66 million -15.4%4.8%6.7 $5.08
11/15/2023850,900 shares $4.20 million +11.8%5.7%7.6 $4.94
10/31/2023760,800 shares $2.75 million +29.4%5.1%6.1 $3.62
10/15/2023588,100 shares $2.21 million +68.8%4.1%4.7 $3.75
9/30/2023348,400 shares $1.70 million +23.9%2.4%2.8 $4.89
9/15/2023281,200 shares $1.56 million -40.1%2.0%1.8 $5.53
8/31/2023469,300 shares $2.46 million -79.1%3.5%2.1 $5.25
8/15/20232,240,000 shares $1.50 million -17.7%2.1%1.3 $0.67
7/31/20232,720,000 shares $1.94 million +1.9%2.9%1.8 $0.71
7/15/20232,670,000 shares $1.75 million -2.2%2.8%1.8 $0.66
6/30/20232,730,000 shares $1.44 million -55.5%2.9%1.9 $0.53
6/15/20236,130,000 shares $4.08 million +11.3%6.5%4.6 $0.66
5/31/20235,510,000 shares $4.05 million +19.3%5.8%8.8 $0.74
5/15/20234,620,000 shares $3.33 million -9.4%4.6%7.9 $0.72
4/30/20235,100,000 shares $3.57 million +0.4%5.3%9.6 $0.70
4/15/20235,080,000 shares $3.09 million +10.0%5.7%9.6 $0.61
3/31/20234,620,000 shares $3.09 million +5.0%5.1%8.9 $0.67
3/15/20234,400,000 shares $3.52 million +12.5%5.0%8.9 $0.80
2/28/20233,910,000 shares $4.03 million +11.4%4.1%8.2 $1.03
2/15/20233,510,000 shares $3.83 million -17.6%3.7%7.9 $1.09
1/31/20234,260,000 shares $5.07 million -6.8%4.3%10.3 $1.19
1/15/20234,570,000 shares $5.76 million +16.0%4.6%11.3 $1.26
12/30/20223,940,000 shares $3.78 million -14.2%3.9%9.6 $0.96
12/15/20224,590,000 shares $5.51 million +0.2%4.6%11 $1.20
11/30/20224,580,000 shares $5.77 million +5.5%4.6%10.5 $1.26
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11/15/20224,340,000 shares $6.25 million -9.4%4.3%9.3 $1.44
10/31/20224,790,000 shares $6.90 million -7.4%4.7%8.8 $1.44
10/15/20225,170,000 shares $5.58 million +3.0%5.1%8.5 $1.08
9/30/20225,020,000 shares $5.42 million +11.1%5.0%7.9 $1.08
9/15/20224,520,000 shares $5.29 million -2.8%4.5%5.1 $1.17
8/31/20224,650,000 shares $6.28 million +5.7%4.6%5 $1.35
8/15/20224,400,000 shares $7.17 million -3.9%4.3%4.2 $1.63
7/31/20224,580,000 shares $6.87 million +5.1%4.5%4.3 $1.50
7/15/20224,360,000 shares $5.10 million +10.7%4.3%4.1 $1.17
6/30/20223,940,000 shares $4.57 million +177.5%3.9%3.8 $1.16
6/15/20221,420,000 shares $2.22 million -5.3%1.4%1.3 $1.56
5/31/20221,500,000 shares $2.30 million -5.7%1.4%1.4 $1.53
5/15/20221,590,000 shares $2.27 million +18.7%1.5%1.5 $1.43
4/30/20221,340,000 shares $2.22 million +3.1%1.3%1.3 $1.66
4/15/20221,300,000 shares $2.44 million +6.6%1.2%1.1 $1.88
3/31/20221,220,000 shares $2.56 million +15.1%1.2%1 $2.10
3/15/20221,060,000 shares $1.90 million -17.8%1.0%0.9 $1.79
2/28/20221,290,000 shares $2.80 million -25.0%1.2%1.2 $2.17
2/15/20221,720,000 shares $5.23 million +27.4%1.8%1.5 $3.04
1/31/20221,350,000 shares $3.36 million +32.4%1.3%1.2 $2.49
1/15/20221,020,000 shares $2.83 million +1.0%1.0%0.9 $2.77
12/31/20211,010,000 shares $3.41 million No Change1.0%0.9 $3.38

SPIR Short Interest - Frequently Asked Questions

Short interest is the volume of Spire Global shares that have been sold short but have not yet been closed out or covered. As of August 14th, traders have sold 3,766,878 shares of SPIR short. 11.07% of Spire Global's shares are currently sold short. Learn More on Spire Global'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. SPIR shares currently have a short interest ratio of 6.3. Learn More on Spire Global'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. 11.07% of Spire Global's floating shares are currently sold short.

Spire Global saw a decline in short interest during the month of August. As of August 14th, there was short interest totaling 3,766,878 shares, a decline of 10.5% from the previous total of 4,209,556 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.

11.07% of Spire Global's shares are currently sold short. Here is how the short interest of companies in the industry of "research & consulting services" compare to Spire Global: TIC Solutions, Inc (7.93%), ICF International, Inc. (3.80%), Clarivate PLC (10.34%), Willdan Group, Inc. (13.28%), Falcon's Beyond Global, Inc. (1.71%), Red Violet, Inc. (2.94%), BlackSky Technology Inc. (18.42%), Charles River Associates (5.09%), LegalZoom.com, Inc. (7.80%), Mistras Group Inc (3.93%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($71.57 billion), Invesco QQQ ($46.97 billion), iShares Russell 2000 ETF ($24.02 billion), Nebius Group N.V. ($15.37 billion), Sandisk Corporation ($12.60 billion), SPDR S&P Biotech ETF ($12.14 billion), Western Digital Corporation ($10.32 billion), iShares 20+ Year Treasury Bond ETF ($8.38 billion), VanEck Semiconductor ETF ($7.62 billion), and iShares iBoxx $ High Yield Corporate Bond ETF ($7.07 billion). View all of the most shorted stocks.

Short selling SPIR is an investing strategy that aims to generate trading profit from Spire Global as its price is falling. SPIR shares are trading down $0.83 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 Spire Global 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 SPIR, 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 SPIR, twice per month. The most recent reporting period available is August, 14 2026.

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

  • 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 NYSE:SPIR is sourced from the Financial Industry Regulatory Authority (FINRA), with the most recent report published on 8/25/2026. FINRA publishes updated short interest twice a month.
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