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Ballard Power Systems (BLDP) Short Interest Ratio & Short Volume

Ballard Power Systems logo
$1.85 -0.04 (-2.12%)
Closing price 04:00 PM Eastern
Extended Trading
$1.90 +0.05 (+2.92%)
As of 05:39 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 Polygon.io. Learn more.

Ballard Power Systems Short Interest Data

Ballard Power Systems (BLDP) has a short interest of 13.17 million shares, representing 5.26% of the float (the number of shares available for trading by the public). This marks a -11.79% decrease in short interest from the previous month. The short interest ratio (days to cover) is 1.7, indicating that it would take 1.7 days of the average trading volume of 8.38 million shares to cover all short positions.

Current Short Interest
13,170,000 shares
Previous Short Interest
14,930,000 shares
Change Vs. Previous Month
-11.79%
Dollar Volume Sold Short
$26.34 million
Short Interest Ratio
1.7 Days to Cover
Last Record Date
August 15, 2025
Outstanding Shares
300,580,000 shares
Float Size
250,250,000 shares
Short Percent of Float
5.26%
Today's Trading Volume
2,526,005 shares
Average Trading Volume
8,377,749 shares
Today's Volume Vs. Average
30%
Short Selling Ballard Power Systems?
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BLDP Short Interest Over Time

BLDP Days to Cover Over Time

BLDP Percentage of Float Shorted Over Time

Ballard Power Systems Short Interest History

Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
8/15/202513,170,000 shares $26.34 million -11.8%5.3%1.7 $2.00
7/31/202514,930,000 shares $27.32 million +2.2%6.0%1.8 $1.83
7/15/202514,610,000 shares $27.32 million +1.7%5.9%1.7 $1.87
6/30/202514,360,000 shares $22.83 million +4.2%5.8%1.6 $1.59
6/15/202513,780,000 shares $22.60 million -32.7%5.5%1.5 $1.64
5/31/202520,480,000 shares $27.85 million +15.8%8.2%2.4 $1.36
5/15/202517,690,000 shares $24.24 million +3.5%7.0%2 $1.37
4/30/202517,090,000 shares $20.85 million -8.4%7.0%2 $1.22
4/15/202518,660,000 shares $22.21 million +2.3%7.6%2 $1.19
3/31/202518,240,000 shares $20.06 million +15.2%7.4%1.8 $1.10
3/15/202515,840,000 shares $20.91 million -6.9%6.4%1.6 $1.32
2/28/202517,020,000 shares $20.93 million +10.4%6.9%1.7 $1.23
2/15/202515,420,000 shares $22.67 million -12.6%6.3%1.7 $1.47
1/31/202517,640,000 shares $23.99 million +10.3%7.2%2.1 $1.36
1/15/202516,000,000 shares $26.08 million +4.6%6.5%2.3 $1.63
12/31/202415,300,000 shares $25.40 million +4.9%6.2%2.5 $1.66
12/15/202414,580,000 shares $23.62 million +15.0%5.9%3 $1.62
11/30/202412,680,000 shares $18.89 million -5.4%5.2%3.1 $1.49
11/15/202413,410,000 shares $17.16 million -2.6%5.5%4 $1.28
10/31/202413,770,000 shares $21.76 million -5.1%5.6%4.3 $1.58
10/15/202414,510,000 shares $23.65 million -5.0%5.9%5.2 $1.63
9/30/202415,270,000 shares $27.49 million -20.1%6.2%5.4 $1.80
9/15/202419,110,000 shares $34.40 million +6.3%7.8%7.2 $1.80
8/31/202417,970,000 shares $33.06 million +3.3%7.3%7 $1.84
8/15/202417,390,000 shares $32.17 million -13.9%7.1%6.8 $1.85
7/31/202420,200,000 shares $46.06 million +1.5%8.2%8.1 $2.28
7/15/202419,900,000 shares $50.55 million -11.9%8.2%7.7 $2.54
6/30/202422,590,000 shares $50.83 million +10.3%9.3%9.2 $2.25
6/15/202420,490,000 shares $52.86 million -5.0%8.5%7.3 $2.58
5/31/202421,570,000 shares $66.65 million +1.1%8.9%7.6 $3.09
5/15/202421,340,000 shares $66.79 million -7.6%8.8%7.1 $3.13
4/30/202423,100,000 shares $60.75 million +3.0%9.5%7.8 $2.63
4/15/202422,420,000 shares $62.55 million -2.5%9.3%7.4 $2.79
3/31/202423,000,000 shares $63.94 million -0.8%9.5%7.2 $2.78
3/15/202423,190,000 shares $64.47 million +1.5%9.6%8.3 $2.78
2/29/202422,850,000 shares $71.75 million -2.8%9.5%7.7 $3.14
2/15/202423,500,000 shares $76.61 million +0.6%9.7%8.6 $3.26
1/31/202423,350,000 shares $76.59 million +0.3%9.7%8.7 $3.28
1/15/202423,280,000 shares $80.08 million +4.1%9.6%9.1 $3.44
12/31/202322,370,000 shares $82.77 million +0.3%9.3%9.3 $3.70
12/15/202322,300,000 shares $82.96 million -1.6%9.2%9.3 $3.72
11/30/202322,660,000 shares $79.54 million +0.5%9.4%10.7 $3.51
11/15/202322,550,000 shares $83.21 million -8.2%9.3%10.7 $3.69
10/31/202324,550,000 shares $81.75 million -11.6%10.2%11.4 $3.33
10/15/202327,780,000 shares $101.12 million +2.6%11.5%11.9 $3.64
9/30/202327,080,000 shares $99.38 million +1.4%11.2%10.8 $3.67
9/15/202326,700,000 shares $112.41 million +0.1%11.1%10.3 $4.21
8/31/202326,670,000 shares $112.01 million -3.3%11.0%8.5 $4.20
8/15/202327,570,000 shares $121.31 million -1.2%11.4%8.2 $4.40
7/31/202327,890,000 shares $131.64 million -13.5%11.6%7.9 $4.72
7/15/202332,240,000 shares $146.05 million +0.8%13.4%9.6 $4.53
6/30/202331,970,000 shares $139.39 million +0.2%13.2%10 $4.36
6/15/202331,920,000 shares $147.79 million -6.2%13.2%10.3 $4.63
5/31/202334,040,000 shares $142.29 million +9.2%14.1%12.2 $4.18
5/15/202331,170,000 shares $140.89 million -2.2%12.9%11.5 $4.52
4/30/202331,880,000 shares $140.91 million +1.4%13.4%12.8 $4.42
4/15/202331,430,000 shares $156.21 million -0.4%13.2%12.7 $4.97
3/31/202331,560,000 shares $175.79 million +7.0%13.2%11.8 $5.57
3/15/202329,500,000 shares $148.39 million -1.5%12.4%10.5 $5.03
2/28/202329,960,000 shares $170.47 million +4.8%12.6%10.9 $5.69
2/15/202328,600,000 shares $185.90 million -1.1%12.0%10.3 $6.50
1/31/202328,930,000 shares $188.91 million -9.8%12.1%9.1 $6.53
1/15/202332,070,000 shares $193.38 million -3.0%13.5%9.5 $6.03
12/30/202233,070,000 shares $158.41 million +10.9%13.9%9.6 $4.79
12/15/202229,830,000 shares $171.22 million +5.9%12.5%8.7 $5.74
11/30/202228,180,000 shares $171.90 million +2.5%11.8%8.4 $6.10
11/15/202227,500,000 shares $176.83 million -5.4%11.5%8.2 $6.43
10/31/202229,060,000 shares $164.77 million -1.7%12.2%8.3 $5.67
10/15/202229,550,000 shares $162.23 million +4.2%12.4%8.1 $5.49
9/30/202228,370,000 shares $173.62 million +1.1%11.9%7.8 $6.12
9/15/202228,070,000 shares $208.28 million +2.2%11.8%7.4 $7.42
8/31/202227,460,000 shares $214.19 million +7.2%11.5%6.9 $7.80
8/15/202225,620,000 shares $224.69 million -0.8%10.8%6.1 $8.77
7/31/202225,830,000 shares $207.41 million +8.2%10.8%5.8 $8.03
7/15/202223,880,000 shares $150.92 million -2.1%10.0%5.6 $6.32
6/30/202224,400,000 shares $153.72 million -2.1%10.3%5.9 $6.30
6/15/202224,930,000 shares $155.81 million -12.3%N/A5.8 $6.25
5/31/202228,420,000 shares $206.61 million -0.1%11.9%6.4 $7.27
5/15/202228,440,000 shares $195.38 million +6.6%12.0%5.9 $6.87
4/30/202226,670,000 shares $221.36 million +1.1%11.2%5.8 $8.30
4/15/202226,380,000 shares $267.76 million +5.1%11.1%5.4 $10.15
3/31/202225,110,000 shares $292.28 million -12.9%10.6%4.9 $11.64
3/15/202228,830,000 shares $296.37 million -4.5%12.7%5.7 $10.28
2/28/202230,200,000 shares $344.88 million -5.4%13.3%6.2 $11.42
2/15/202231,930,000 shares $327.92 million +8.6%14.0%7.2 $10.27
1/31/202229,400,000 shares $305.76 million +12.6%12.9%6.5 $10.40
1/15/202226,120,000 shares $286.80 million +8.0%11.5%6.1 $10.98
12/31/202124,180,000 shares $303.70 million -10.0%10.6%5.7 $12.56
12/15/202126,880,000 shares $341.91 million +13.1%11.8%6.7 $12.72
11/30/202123,770,000 shares $360.35 million -3.6%10.4%6.4 $15.16
11/15/202124,650,000 shares $439.02 million +0.0%10.8%6.7 $17.81
10/29/202124,640,000 shares $446.48 million -3.5%10.4%6.7 $18.12
10/15/202125,530,000 shares $402.61 million +4.4%10.8%7.9 $15.77
9/30/202124,460,000 shares $343.66 million +1.7%10.3%8.3 $14.05
9/15/202124,060,000 shares $365.23 million +3.6%10.1%8 $15.18
8/31/202123,220,000 shares $390.10 million +1.6%9.8%7.6 $16.80
8/13/202122,860,000 shares $345.64 million -2.8%9.6%7.1 $15.12
7/30/202123,520,000 shares $380.32 million +2.4%9.9%6.3 $16.17
7/15/202122,980,000 shares $349.53 million +1.5%9.7%5.2 $15.21
6/30/202122,640,000 shares $410.24 million -5.7%9.5%4.7 $18.12
6/15/202124,000,000 shares $410.64 million -1.2%10.1%4.8 $17.11
5/28/202124,290,000 shares $420.70 million +3.5%10.2%4.4 $17.32
5/14/202123,470,000 shares $324.59 million +12.7%9.9%3.8 $13.83
4/30/202120,820,000 shares $460.75 million +13.7%8.8%3.2 $22.13
4/15/202118,320,000 shares $405.42 million +10.0%7.7%3 $22.13
3/31/202116,650,000 shares $379.45 million -6.3%7.0%2.4 $22.79
3/15/202117,770,000 shares $468.42 million +54.4%7.5%2.5 $26.36
2/26/202111,510,000 shares $313.88 million -0.3%4.9%1.7 $27.27
2/12/202111,540,000 shares $423.29 million +4.5%5.2%1.7 $36.68
1/29/202111,040,000 shares $375.36 million -19.2%5.0%1.8 $34.00
1/15/202113,660,000 shares $471.95 million -13.7%6.2%2.3 $34.55
12/31/202015,820,000 shares $372.72 million +12.0%7.1%3.1 $23.56
12/15/202014,130,000 shares $260.56 million -12.5%6.4%3 $18.44
11/30/202016,150,000 shares $331.40 million -18.9%7.6%3.7 $20.52
11/15/202019,920,000 shares $322.31 million +24.2%10.1%4.6 $16.18
10/30/202016,040,000 shares $237.07 million -7.8%8.7%3.9 $14.78
10/15/202017,390,000 shares $327.98 million +9.2%9.4%4.1 $18.86
9/30/202015,930,000 shares $240.54 million +11.8%8.6%3.5 $15.10
9/15/202014,250,000 shares $217.31 million +18.6%7.7%3.2 $15.25

BLDP Short Interest - Frequently Asked Questions

What is Ballard Power Systems' current short interest?

Short interest is the volume of Ballard Power Systems shares that have been sold short but have not yet been covered or closed out. As of August 15th, investors have sold 13,170,000 shares of BLDP short. 5.26% of Ballard Power Systems' shares are currently sold short. Learn More on Ballard Power Systems' current short interest.

What is a good short interest ratio for Ballard Power Systems?

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. BLDP shares currently have a short interest ratio of 2.0. Learn More on Ballard Power Systems's short interest ratio.

Which institutional investors are shorting Ballard Power Systems?

As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Ballard Power Systems: Group One Trading LLC, Walleye Trading LLC, and Simplex Trading LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission.

What is a good short interest percentage for Ballard Power Systems?

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. 5.26% of Ballard Power Systems' floating shares are currently sold short.

Is Ballard Power Systems' short interest increasing or decreasing?

Ballard Power Systems saw a drop in short interest during the month of August. As of August 15th, there was short interest totaling 13,170,000 shares, a drop of 11.8% from the previous total of 14,930,000 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.

What is Ballard Power Systems' float size?

Ballard Power Systems currently has issued a total of 300,580,000 shares. Some of Ballard Power Systems' outstanding shares are available for trading, while others are subject to various restrictions. The public float, also referred to as floating shares or "the float", are shares that publicly owned, unrestricted and available to trade on the open market. Ballard Power Systems currently has a public float of 250,250,000 shares.

How does Ballard Power Systems' short interest compare to its competitors?

5.26% of Ballard Power Systems' shares are currently sold short. Here is how the short interest of companies compare to Ballard Power Systems: Blink Charging Co. (15.31%), FuelCell Energy, Inc. (14.35%), Plug Power, Inc. (29.57%), Sunrun Inc. (24.90%), ChargePoint Holdings, Inc. (17.97%), Enovix Corporation (27.01%), Atkore Inc. (3.75%), Energizer Holdings, Inc. (8.41%), Eos Energy Enterprises, Inc. (31.40%), Fluence Energy, Inc. (7.82%),

Which stocks are the most shorted right now?

As of the most recent reporting period, the following stocks had the largest short interest positions: Lucid Group, Inc. ($8.00 billion), Spotify Technology ($5.48 billion), AppLovin Corporation ($5.11 billion), Reddit Inc. ($5.02 billion), Coinbase Global, Inc. ($3.99 billion), Charter Communications, Inc. ($3.89 billion), Live Nation Entertainment, Inc. ($3.18 billion), Seagate Technology Holdings PLC ($2.59 billion), ResMed Inc. ($2.55 billion), and Rocket Lab Corporation ($2.52 billion). View all of the most shorted stocks.

What does it mean to sell short Ballard Power Systems stock?

Short selling BLDP is an investing strategy that aims to generate trading profit from Ballard Power Systems as its price is falling. BLDP shares are trading down $0.04 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 Ballard Power Systems?

A short squeeze for Ballard Power Systems 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 BLDP, which in turn drives the price of the stock up even further.

How often is Ballard Power Systems' 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 BLDP, twice per month. The most recent reporting period available is August, 15 2025.




This page (NASDAQ:BLDP) was last updated on 9/4/2025 by MarketBeat.com Staff
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