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Builders FirstSource (BLDR) Short Interest Ratio & Short Volume

Builders FirstSource logo
$114.49 -3.11 (-2.64%)
As of 03:58 PM Eastern
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Builders FirstSource Short Interest Data

Builders FirstSource (BLDR) has a short interest of 4.31 million shares, representing 3.99% of the float (the number of shares available for trading by the public). This marks a 10.51% increase in short interest from the previous month. The short interest ratio (days to cover) is 2.4, indicating that it would take 2.4 days of the average trading volume of 1.68 million shares to cover all short positions.

Current Short Interest
4,310,000 shares
Previous Short Interest
3,900,000 shares
Change Vs. Previous Month
+10.51%
Dollar Volume Sold Short
$514.10 million
Short Interest Ratio
2.4 Days to Cover
Last Record Date
April 30, 2025
Outstanding Shares
110,515,000 shares
Float Size
108,010,000 shares
Short Percent of Float
3.99%
Today's Trading Volume
1,369,373 shares
Average Trading Volume
1,676,214 shares
Today's Volume Vs. Average
82%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

BLDR Short Interest Over Time

BLDR Days to Cover Over Time

BLDR Percentage of Float Shorted Over Time

Builders FirstSource Short Interest History

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Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
4/30/20254,310,000 shares $514.10 million +10.5%4.0%2.4 $119.28
4/15/20253,900,000 shares $461.58 million -7.1%3.5%2.3 $118.36
3/31/20254,200,000 shares $524.84 million -14.8%3.8%2.4 $124.96
3/15/20254,930,000 shares $622.15 million +18.8%4.4%2.8 $126.20
2/28/20254,150,000 shares $576.97 million +20.3%3.7%2.5 $139.03
2/15/20253,450,000 shares $530.96 million -14.4%3.1%2.2 $153.90
1/31/20254,030,000 shares $674.16 million +15.5%3.6%2.8 $167.29
1/15/20253,490,000 shares $563.18 million +10.4%3.1%2.4 $161.37
12/31/20243,160,000 shares $451.66 million +22.0%2.8%2.4 $142.93
12/15/20242,590,000 shares $431.05 million +22.8%2.3%2 $166.43
11/30/20242,110,000 shares $393.45 million -7.5%1.9%1.6 $186.47
11/15/20242,280,000 shares $401.92 million -8.1%2.0%1.7 $176.28
10/31/20242,480,000 shares $425.07 million -9.5%2.2%1.8 $171.40
10/15/20242,740,000 shares $536.27 million -6.2%2.4%1.8 $195.72
9/30/20242,920,000 shares $566.07 million -18.2%2.6%1.7 $193.86
9/15/20243,570,000 shares $654.38 million -1.4%3.1%1.9 $183.30
8/31/20243,620,000 shares $629.88 million +11.0%3.2%2 $174.00
8/15/20243,260,000 shares $536.99 million +21.2%2.9%1.7 $164.72
7/31/20242,690,000 shares $450.23 million -7.9%2.4%1.2 $167.37
7/15/20242,920,000 shares $447.26 million -6.1%2.4%1.4 $153.17
6/30/20243,110,000 shares $430.46 million +2.3%2.6%1.6 $138.41
6/15/20243,040,000 shares $454.63 million -19.8%2.5%1.7 $149.55
5/31/20243,790,000 shares $609.39 million +21.9%3.2%2.3 $160.79
5/15/20243,110,000 shares $534.73 million +20.5%2.6%2 $171.94
4/30/20242,580,000 shares $471.68 million -3.4%2.2%1.8 $182.82
4/15/20242,670,000 shares $492.37 million -1.8%2.2%2.1 $184.41
3/31/20242,720,000 shares $567.26 million -13.1%2.3%2.3 $208.55
3/15/20243,130,000 shares $611.92 million -5.2%2.6%2.5 $195.50
2/29/20243,300,000 shares $643.63 million -3.5%2.8%1.9 $195.04
2/15/20243,420,000 shares $639.64 million No Change2.9%1.9 $187.03
1/31/20243,420,000 shares $594.26 million -3.9%2.8%1.9 $173.76
1/15/20243,560,000 shares $595.91 million -5.1%3.0%1.8 $167.39
12/31/20233,750,000 shares $626.03 million -12.0%3.1%1.9 $166.94
12/15/20234,260,000 shares $694.55 million -1.2%3.5%2.1 $163.04
11/30/20234,310,000 shares $577.54 million -4.2%3.6%2.7 $134.00
11/15/20234,500,000 shares $579.51 million -14.6%3.7%2.9 $128.78
10/31/20235,270,000 shares $571.90 million +22.6%4.4%3.4 $108.52
10/15/20234,300,000 shares $499.96 million -1.8%3.5%2.9 $116.27
9/30/20234,380,000 shares $545.27 million +5.5%3.6%3 $124.49
9/15/20234,150,000 shares $527.63 million -2.1%3.4%2.7 $127.14
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8/31/20234,240,000 shares $615.22 million -4.5%3.5%2.4 $145.10
8/15/20234,440,000 shares $669.51 million +23.7%3.6%2.2 $150.79
7/31/20233,590,000 shares $518.58 million No Change2.9%1.7 $144.45
7/15/20233,590,000 shares $506.76 million -8.9%2.9%1.6 $141.16
6/30/20233,940,000 shares $535.64 million -30.8%3.2%1.6 $135.95
6/15/20235,690,000 shares $699.98 million +14.0%4.6%2.3 $123.02
5/31/20234,990,000 shares $577.74 million +2.5%4.0%2.1 $115.78
5/15/20234,870,000 shares $575.44 million -1.4%3.9%2.2 $118.16
4/30/20234,940,000 shares $468.16 million -9.4%4.4%2.3 $94.77
4/15/20235,450,000 shares $514.26 million +29.2%4.0%2.8 $94.36
3/31/20234,220,000 shares $374.65 million +0.5%3.1%2.3 $88.78
3/15/20234,200,000 shares $334.03 million +3.5%3.1%2.3 $79.53
2/28/20234,060,000 shares $344.21 million -6.5%3.0%2.3 $84.78
2/15/20234,340,000 shares $363.61 million -13.7%3.0%2.5 $83.78
1/31/20235,030,000 shares $400.89 million -10.0%3.5%2.7 $79.70
1/15/20235,590,000 shares $402.09 million -5.1%3.9%3.1 $71.93
12/30/20225,890,000 shares $382.14 million -4.5%4.1%3 $64.88
12/15/20226,170,000 shares $421.23 million -2.1%4.3%3 $68.27
11/30/20226,300,000 shares $402.76 million +0.3%4.4%2.9 $63.93
11/15/20226,280,000 shares $402.30 million -7.9%4.3%3 $64.06
10/31/20226,820,000 shares $420.52 million -7.2%4.4%3.3 $61.66
10/15/20227,350,000 shares $426.01 million -6.0%4.8%3.4 $57.96
9/30/20227,820,000 shares $460.75 million -15.1%5.1%3.5 $58.92
9/15/20229,210,000 shares $509.31 million +17.3%6.0%4 $55.30
8/31/20227,850,000 shares $460.09 million +2.9%5.1%3.2 $58.61
8/15/20227,630,000 shares $531.51 million -7.5%5.0%2.9 $69.66
7/31/20228,250,000 shares $561 million -0.7%4.9%2.9 $68.00
7/15/20228,310,000 shares $530.51 million +9.5%4.9%2.9 $63.84
6/30/20227,590,000 shares $407.58 million +6.8%4.5%2.6 $53.70
6/15/20227,110,000 shares $394.32 million -3.5%4.2%2.4 $55.46
5/31/20227,370,000 shares $479.71 million +21.6%4.4%2.8 $65.09
5/15/20226,060,000 shares $405.35 million -10.8%3.6%2.2 $66.89
4/30/20226,790,000 shares $418.06 million -5.7%3.9%2.7 $61.57
4/15/20227,200,000 shares $440.35 million +4.7%4.2%2.8 $61.16
3/31/20226,880,000 shares $444.04 million -0.9%4.0%2.7 $64.54
3/15/20226,940,000 shares $509.12 million +15.7%4.0%2.8 $73.36
2/28/20226,000,000 shares $446.52 million -4.8%3.5%2.2 $74.42
2/15/20226,300,000 shares $449.44 million -2.5%3.6%2.4 $71.34
1/31/20226,460,000 shares $439.22 million +10.1%3.4%2.4 $67.99
1/15/20225,870,000 shares $461.85 million +0.2%3.1%2.2 $78.68
12/31/20215,860,000 shares $502.26 million -16.6%3.1%2.3 $85.71
12/15/20217,030,000 shares $550.17 million -13.0%3.7%3 $78.26
7/30/20218,850,000 shares $393.83 million -8.0%4.3%2.8 $44.50
7/15/20219,620,000 shares $402.50 million -14.3%4.7%3 $41.84
6/30/202111,220,000 shares $478.65 million -20.5%5.5%3.6 $42.66
6/15/202114,110,000 shares $611.81 million +16.8%6.9%5.7 $43.36
5/28/202112,080,000 shares $538.04 million +5.3%5.9%5.1 $44.54
5/14/202111,470,000 shares $550.10 million +14.2%N/A5.1 $47.96
4/30/202110,040,000 shares $501.70 million -5.9%N/A4.9 $49.97
4/15/202110,670,000 shares $510.24 million -3.0%N/A5.5 $47.82
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3/31/202111,000,000 shares $505.01 million +11.6%N/A5.2 $45.91
3/15/20219,860,000 shares $460.86 million +5.6%N/A4 $46.74
2/26/20219,340,000 shares $379.30 million -2.9%N/A4 $40.61
2/12/20219,620,000 shares $417.70 million +8.2%N/A4.3 $43.42
1/29/20218,890,000 shares $345.73 million -12.1%N/A3.9 $38.89
1/15/202110,110,000 shares $406.93 million -35.9%N/A4.3 $40.25
12/31/202015,780,000 shares $667.18 million +3.1%N/A7.4 $42.28
12/15/202015,310,000 shares $542.59 million +9.2%13.4%8.6 $35.44
11/30/202014,020,000 shares $531.78 million -6.4%12.2%7 $37.93
11/15/202014,980,000 shares $521.83 million +19.7%13.1%6.2 $34.84
10/30/202012,520,000 shares $375.73 million -1.1%10.9%4.4 $30.01
10/15/202012,660,000 shares $429.30 million +2.7%11.1%4.7 $33.91
9/30/202012,330,000 shares $402.20 million -2.9%10.8%4.7 $32.62
9/15/202012,700,000 shares $413.77 million +65.4%11.1%5.2 $32.58
8/31/20207,680,000 shares $235.16 million +139.3%6.7%3.6 $30.62
8/14/20203,210,000 shares $97.17 million +18.9%2.8%1.9 $30.27
7/31/20202,700,000 shares $63.96 million -3.6%2.4%2.4 $23.69
7/15/20202,800,000 shares $58.02 million -1.1%2.5%2.5 $20.72
6/30/20202,830,000 shares $58.58 million -0.7%2.5%2.4 $20.70
6/15/20202,850,000 shares $64.81 million -12.8%2.5%2.1 $22.74
5/29/20203,270,000 shares $68.05 million +23.9%2.9%2 $20.81

BLDR Short Interest - Frequently Asked Questions

What is Builders FirstSource's current short interest?

Short interest is the volume of Builders FirstSource shares that have been sold short but have not yet been covered or closed out. As of April 30th, investors have sold 4,310,000 shares of BLDR short. 3.99% of Builders FirstSource's shares are currently sold short. Learn More on Builders FirstSource's current short interest.

What is a good short interest ratio for Builders FirstSource?

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. BLDR shares currently have a short interest ratio of 2.0. Learn More on Builders FirstSource's short interest ratio.

Which institutional investors are shorting Builders FirstSource?

As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Builders FirstSource: Jane Street Group LLC, Goldman Sachs Group Inc., Parallax Volatility Advisers L.P., Millennium Management LLC, Cubist Systematic Strategies LLC, Caption Management LLC, Twin Tree Management LP, BNP Paribas Financial Markets, PEAK6 LLC, Walleye Trading LLC, Walleye Capital LLC, Capital Fund Management S.A., Simplex Trading LLC, Jefferies Financial Group Inc., IMC Chicago LLC, and Jefferies Financial Group Inc.. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission.

What is a good short interest percentage for Builders FirstSource?

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. 3.99% of Builders FirstSource's floating shares are currently sold short.

Is Builders FirstSource's short interest increasing or decreasing?

Builders FirstSource saw a increase in short interest in April. As of April 30th, there was short interest totaling 4,310,000 shares, an increase of 10.5% from the previous total of 3,900,000 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 Builders FirstSource's float size?

Builders FirstSource currently has issued a total of 110,515,000 shares. Some of Builders FirstSource's 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. Builders FirstSource currently has a public float of 108,010,000 shares.

How does Builders FirstSource's short interest compare to its competitors?

3.99% of Builders FirstSource's shares are currently sold short. Here is how the short interest of companies compare to Builders FirstSource: Lennox International Inc. (4.95%), Masco Co. (3.52%), Owens Corning (1.46%), A. O. Smith Co. (5.12%), AAON, Inc. (4.01%), Simpson Manufacturing Co., Inc. (2.39%), Armstrong World Industries, Inc. (1.79%), Trex Company, Inc. (7.12%), UFP Industries, Inc. (2.43%), Griffon Co. (5.05%),

Which stocks are the most shorted right now?

As of the most recent reporting period, the following stocks had the largest short interest positions: Spotify Technology S.A. ($4.67 billion), Charter Communications, Inc. ($4.58 billion), Capital One Financial Co. ($4.47 billion), The Kroger Co. ($2.56 billion), Reddit, Inc. ($2.23 billion), Rivian Automotive, Inc. ($2.16 billion), Live Nation Entertainment, Inc. ($1.90 billion), SoFi Technologies, Inc. ($1.85 billion), Zscaler, Inc. ($1.75 billion), and Omnicom Group Inc. ($1.75 billion). View all of the most shorted stocks.

What does it mean to sell short Builders FirstSource stock?

Short selling BLDR is an investing strategy that aims to generate trading profit from Builders FirstSource as its price is falling. BLDR shares are trading down $3.11 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 Builders FirstSource?

A short squeeze for Builders FirstSource 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 BLDR, which in turn drives the price of the stock up even further.

How often is Builders FirstSource'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 BLDR, twice per month. The most recent reporting period available is April, 30 2025.



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This page (NYSE:BLDR) was last updated on 5/20/2025 by MarketBeat.com Staff
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