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BlackLine (BL) Short Interest Ratio & Short Volume

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$27.89 -0.24 (-0.85%)
Closing price 04:00 PM Eastern
Extended Trading
$27.90 +0.00 (+0.02%)
As of 07:30 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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BlackLine Short Interest Overview

As of September 15, 2026, BlackLine (BL) had a short interest of 5.76 million shares sold short, representing 10.91% of the public float. This marks a -1.28% decrease in short interest since the prior report. The short interest ratio (days to cover) is 7.0, meaning it would take 7.0 days of the average trading volume of 896,193 shares to cover all short positions.

Current Short Interest
5,761,952 shares
Previous Short Interest
5,836,597 shares
Change Vs. Previous Month
-1.28%
Dollar Volume Sold Short
$167.90 million
Short Interest Ratio
7.0 Days to Cover
Last Record Date
September 15, 2026
Outstanding Shares
58,120,000 shares
Short Percent of Float
10.91%
Today's Trading Volume
938,585 shares
Average Trading Volume
896,193 shares
Today's Volume Vs. Average
105%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

BL Short Interest Over Time

BL Days to Cover Over Time

BL Percentage of Float Shorted Over Time

BlackLine 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
9/15/20265,761,952 shares $167.90 million -1.3%10.9%7 $29.14
8/31/20265,836,597 shares $193.89 million +18.1%11.0%6.07 $33.22
8/14/20264,940,259 shares $150.83 million -11.7%9.4%3.45 $30.53
7/31/20265,596,377 shares $175.73 million -15.8%10.6%6.25 $31.40
7/15/20266,648,451 shares $195.80 million -8.3%12.5%7.17 $29.45
6/30/20267,250,435 shares $203.97 million +7.7%13.6%5.56 $28.13
6/15/20266,733,557 shares $191.84 million +0.7%12.6%5.28 $28.49
5/29/20266,685,690 shares $196.56 million -5.1%12.5%3.35 $29.40
5/15/20267,040,934 shares $191.87 million +8.4%13.2%5.49 $27.25
4/30/20266,497,067 shares $203.03 million +5.0%12.2%6.98 $31.25
4/15/20266,188,258 shares $201.55 million +8.1%11.6%6.09 $32.57
3/31/20265,723,602 shares $211.77 million -5.6%10.7%4.31 $37.00
3/13/20266,065,772 shares $223.71 million +1.7%11.1%6.33 $36.88
2/27/20265,964,827 shares $210.26 million -6.0%11.2%3.57 $35.25
2/13/20266,344,304 shares $244.95 million +8.8%11.9%4.09 $38.61
1/30/20265,831,762 shares $271.00 million +2.4%10.7%4.96 $46.47
1/15/20265,692,810 shares $298.47 million +1.3%10.5%6.97 $52.43
12/31/20255,621,545 shares $310.82 million -9.9%10.3%10.31 $55.29
12/15/20256,238,160 shares $356.39 million -2.8%11.5%12.99 $57.13
11/28/20256,418,167 shares $365.74 million +4.5%11.8%9.17 $56.99
11/14/20256,141,237 shares $335.74 million -0.4%11.3%6.51 $54.67
10/31/20256,167,781 shares $353.11 million +1.1%10.9%4.2 $57.25
10/15/20256,100,000 shares $302.32 million -2.7%12.0%7.8 $49.56
9/30/20256,270,000 shares $332.94 million -3.5%12.4%8.7 $53.10
9/15/20256,500,000 shares $353.34 million +10.9%12.8%8.7 $54.36
8/31/20255,860,000 shares $318.61 million -6.1%11.5%7.7 $54.37
8/15/20256,240,000 shares $317.18 million -2.2%12.3%8.1 $50.83
7/31/20256,380,000 shares $343.12 million -7.7%12.6%8.9 $53.78
7/15/20256,910,000 shares $374.31 million -1.6%13.5%10.1 $54.17
6/30/20257,020,000 shares $397.47 million +1.7%13.7%9.5 $56.62
6/15/20256,900,000 shares $373.01 million +4.2%13.5%9.4 $54.06
5/31/20256,620,000 shares $366.22 million +2.6%13.0%9.1 $55.32
5/15/20256,450,000 shares $355.01 million +12.0%12.6%8.8 $55.04
4/30/20255,760,000 shares $272.04 million +1.8%11.3%6.8 $47.23
4/15/20255,660,000 shares $256.06 million +18.2%11.0%6.9 $45.24
3/31/20254,790,000 shares $231.93 million +3.5%9.2%5.9 $48.42
3/15/20254,630,000 shares $230.99 million +1.1%8.9%6.2 $49.89
2/28/20254,580,000 shares $221.21 million -6.7%8.9%6.4 $48.30
2/15/20254,910,000 shares $252.23 million +3.6%9.5%7 $51.37
1/31/20254,740,000 shares $302.65 million +2.6%9.3%7.7 $63.85
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1/15/20254,620,000 shares $271.06 million -2.9%9.0%7.9 $58.67
12/31/20244,760,000 shares $289.22 million +1.1%9.3%7.9 $60.76
12/15/20244,710,000 shares $300.78 million +0.9%9.2%7.3 $63.86
11/30/20244,670,000 shares $289.59 million -4.5%9.1%7.4 $62.01
11/15/20244,890,000 shares $290.03 million +6.1%9.5%7.4 $59.31
10/31/20244,610,000 shares $255.26 million -0.7%9.0%6.8 $55.37
10/15/20244,640,000 shares $267.36 million -1.5%9.1%6.5 $57.62
9/30/20244,710,000 shares $259.71 million +7.3%9.2%6.1 $55.14
9/15/20244,390,000 shares $219.54 million -6.6%8.6%5 $50.01
8/31/20244,700,000 shares $232.89 million -3.1%9.2%5.1 $49.55
8/15/20244,850,000 shares $251.18 million +3.4%9.5%4.8 $51.79
7/31/20244,690,000 shares $222.87 million -8.6%9.2%4.3 $47.52
7/15/20245,130,000 shares $247.42 million +10.6%10.1%4.9 $48.23
6/30/20244,640,000 shares $224.81 million +12.4%9.2%4.5 $48.45
6/15/20244,130,000 shares $188.00 million -4.6%8.2%4.2 $45.52
5/31/20244,330,000 shares $206.63 million +61.0%8.6%3.8 $47.72
5/15/20242,690,000 shares $158.44 million -18.0%5.3%2.4 $58.90
4/30/20243,280,000 shares $190.40 million -18.4%6.5%3.2 $58.05
4/15/20244,020,000 shares $244.58 million -4.7%8.0%4.1 $60.84
3/31/20244,220,000 shares $272.53 million +9.9%10.0%4.4 $64.58
3/15/20243,840,000 shares $252.02 million +65.5%7.7%4.2 $65.63
2/29/20242,320,000 shares $131.61 million +14.9%4.6%3.5 $56.73
2/15/20242,020,000 shares $121.44 million -2.4%4.0%3.7 $60.12
1/31/20242,070,000 shares $121.47 million +23.2%4.1%4.1 $58.68
1/15/20241,680,000 shares $96.72 million -12.5%3.4%3.1 $57.57
12/31/20231,920,000 shares $119.88 million -8.1%3.8%3.6 $62.44
12/15/20232,090,000 shares $129.81 million -2.8%4.2%3.8 $62.11
11/30/20232,150,000 shares $124.38 million -0.5%4.3%3.9 $57.85
11/15/20232,160,000 shares $121.13 million -4.4%4.3%3.6 $56.08
10/31/20232,260,000 shares $110.97 million -4.6%4.6%3.6 $49.10
10/15/20232,370,000 shares $124.47 million -9.2%4.8%3.9 $52.52
9/30/20232,610,000 shares $144.78 million -8.7%5.3%4.3 $55.47
9/15/20232,860,000 shares $159.07 million +1.4%5.8%4.7 $55.62
8/31/20232,820,000 shares $169.37 million +11.9%5.7%4.4 $60.06
8/15/20232,520,000 shares $127.41 million -9.0%5.1%3.8 $50.56
7/31/20232,770,000 shares $160.88 million +9.9%5.6%4.1 $58.08
7/15/20232,520,000 shares $138.57 million -6.7%5.1%3.6 $54.99
6/30/20232,700,000 shares $145.31 million +9.3%5.5%4 $53.82
6/15/20232,470,000 shares $134.05 million -23.1%5.0%3.8 $54.27
5/31/20233,210,000 shares $167.14 million -2.1%6.5%5.2 $52.07
5/15/20233,280,000 shares $174.33 million -16.1%6.7%5.9 $53.15
4/30/20233,910,000 shares $217.83 million -5.3%8.0%7.1 $55.71
4/15/20234,130,000 shares $259.16 million -8.0%8.5%8.4 $62.75
3/31/20234,490,000 shares $301.50 million -2.0%9.2%8.9 $67.15
3/15/20234,580,000 shares $292.94 million +1.8%9.4%9.7 $63.96
2/28/20234,500,000 shares $307.62 million -0.2%9.2%10 $68.36
2/15/20234,510,000 shares $333.74 million +7.1%9.3%10.3 $74.00
1/31/20234,210,000 shares $302.28 million +8.5%8.7%10 $71.80
1/15/20233,880,000 shares $274.08 million -2.8%8.0%8.3 $70.64
12/30/20223,990,000 shares $268.41 million +1.0%8.2%8.6 $67.27
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12/15/20223,950,000 shares $269.51 million -3.7%8.1%7.7 $68.23
11/30/20224,100,000 shares $277.53 million No Change8.4%8 $67.69
11/15/20224,100,000 shares $269.94 million +3.0%8.4%7.7 $65.84
10/31/20223,980,000 shares $222.88 million -1.0%8.1%7.2 $56.00
10/15/20224,020,000 shares $232.88 million -1.0%8.2%7.8 $57.93
9/30/20224,060,000 shares $243.19 million -6.2%8.3%7.3 $59.90
9/15/20224,330,000 shares $302.49 million -5.3%8.8%7.7 $69.86
8/31/20224,570,000 shares $310.49 million -12.0%9.3%7.5 $67.94
8/15/20225,190,000 shares $364.18 million No Change10.6%7.9 $70.17
7/31/20225,190,000 shares $328.11 million -7.3%9.6%6.7 $63.22
7/15/20225,600,000 shares $383.60 million -1.1%10.4%7 $68.50
6/30/20225,660,000 shares $376.96 million +2.0%10.5%7.7 $66.60
6/15/20225,550,000 shares $382.56 million -0.2%10.3%7.6 $68.93
5/31/20225,560,000 shares $407.10 million +19.1%10.3%8.1 $73.22
5/15/20224,670,000 shares $273.43 million -7.5%8.7%6.5 $58.55
4/30/20225,050,000 shares $338.60 million +0.4%9.4%7.8 $67.05
4/15/20225,030,000 shares $350.04 million +1.8%9.3%8.2 $69.59
3/31/20224,940,000 shares $361.71 million +3.4%9.2%7.8 $73.22
3/15/20224,780,000 shares $320.64 million +4.4%8.9%7.8 $67.08
2/28/20224,580,000 shares $344.92 million -4.0%8.5%7.2 $75.31
2/15/20224,770,000 shares $377.35 million -1.0%8.9%7.7 $79.11
1/31/20224,820,000 shares $442.81 million -9.1%9.1%9.8 $91.87
1/15/20225,300,000 shares $471.49 million -6.0%10.0%11.6 $88.96
12/31/20215,640,000 shares $583.97 million +1.3%10.7%13.3 $103.54
12/15/20215,570,000 shares $561.46 million +6.9%10.5%13.3 $100.80
11/30/20215,210,000 shares $573.36 million +0.4%9.8%13 $110.05
11/15/20215,190,000 shares $660.95 million -3.9%10.0%13.5 $127.35
10/29/20215,400,000 shares $685.10 million -2.4%10.5%14 $126.87
10/15/20215,530,000 shares $682.13 million -1.3%10.8%15.1 $123.35
9/30/20215,600,000 shares $661.14 million No Change10.9%16.7 $118.06

BL Short Interest - Frequently Asked Questions

Short interest is the volume of BlackLine shares that have been sold short but have not yet been covered or closed out. As of September 15th, traders have sold 5,761,952 shares of BL short. 10.91% of BlackLine's shares are currently sold short. Learn More on BlackLine'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. BL shares currently have a short interest ratio of 7.0. Learn More on BlackLine'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. 10.91% of BlackLine's floating shares are currently sold short.

BlackLine saw a decline in short interest in September. As of September 15th, there was short interest totaling 5,761,952 shares, a decline of 1.3% from the previous total of 5,836,597 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.

10.91% of BlackLine's shares are currently sold short. Here is how the short interest of companies in the industry of "application software" compare to BlackLine: Q2 Holdings, Inc. (8.46%), Workiva Inc. (7.06%), The Descartes Systems Group Inc. (2.19%), D-Wave Quantum Inc. (18.62%), Pegasystems Inc. (13.85%), RingCentral, Inc. (8.57%), NiCE (2.10%), CLEAR Secure, Inc. (13.38%), Open Text Corporation (6.50%), Navan, Inc. (10.78%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($75.21 billion), Invesco QQQ ($46.31 billion), iShares Russell 2000 ETF ($27.98 billion), SPDR S&P Biotech ETF ($11.59 billion), Nebius Group N.V. ($9.70 billion), Canadian Natural Resources Limited ($9.42 billion), iShares 20+ Year Treasury Bond ETF ($8.70 billion), iShares iBoxx $ High Yield Corporate Bond ETF ($8.53 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($7.79 billion), and Financial Select Sector SPDR Fund ($7.74 billion). View all of the most shorted stocks.

Short selling BL is an investing strategy that aims to generate trading profit from BlackLine as its price is falling. BL shares are trading down $0.24 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 BlackLine 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 BL, 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 BL, twice per month. The most recent reporting period available is September, 15 2026.

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

  • 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 data for NASDAQ:BL is sourced from the Financial Industry Regulatory Authority (FINRA), with the most recent report published on 9/24/2026. FINRA publishes updated short interest twice a month.
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