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Advanced Drainage Systems (WMS) Short Interest Ratio & Short Volume

Advanced Drainage Systems logo
$141.46 +0.02 (+0.01%)
As of 03:58 PM Eastern
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Advanced Drainage Systems Short Interest Overview

As of August 14, 2026, Advanced Drainage Systems (WMS) had a short interest of 2.42 million shares sold short, representing 3.26% of the public float. This marks a 4.99% increase in short interest since the prior report. The short interest ratio (days to cover) is 2.7, meaning it would take 2.7 days of the average trading volume of 836,655 shares to cover all short positions.

Current Short Interest
2,418,389 shares
Previous Short Interest
2,303,453 shares
Change Vs. Previous Month
4.99%
Dollar Volume Sold Short
$364.75 million
Short Interest Ratio
2.7 Days to Cover
Last Record Date
August 14, 2026
Outstanding Shares
75,400,000 shares
Short Percent of Float
3.26%
Today's Trading Volume
432,690 shares
Average Trading Volume
836,655 shares
Today's Volume Vs. Average
52%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

WMS Short Interest Over Time

WMS Days to Cover Over Time

WMS Percentage of Float Shorted Over Time

Advanced Drainage Systems 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
8/14/20262,418,389 shares $364.75 million +5.0%3.3%2.73 $150.82
7/31/20262,303,453 shares $319.62 million -21.0%3.1%3.88 $138.76
7/15/20262,916,340 shares $441.80 million -7.1%3.9%4.71 $151.49
6/30/20263,138,866 shares $493.02 million +1.6%4.2%2.85 $157.07
6/15/20263,089,442 shares $422.95 million -6.1%4.1%2.71 $136.90
5/29/20263,288,660 shares $457.50 million +12.3%4.4%3.19 $139.12
5/15/20262,927,370 shares $397.14 million +6.2%3.8%4.04 $135.66
4/30/20262,757,635 shares $411.43 million +3.5%3.6%2.7 $149.20
4/15/20262,665,763 shares $394.16 million -1.2%3.5%2.94 $147.86
3/31/20262,697,367 shares $369.95 million +4.4%3.6%3.05 $137.15
3/13/20262,582,928 shares $354.47 million -11.2%3.4%2.54 $137.24
2/27/20262,909,561 shares $497.81 million +12.8%3.9%4.89 $171.10
2/13/20262,578,716 shares $440.92 million -22.0%3.4%2.63 $170.99
1/30/20263,307,921 shares $503.22 million -2.1%4.3%5.49 $152.13
1/15/20263,379,282 shares $537.94 million +0.7%4.4%4.76 $159.19
12/31/20253,355,088 shares $486.15 million +0.9%4.4%7.58 $144.90
12/15/20253,326,589 shares $493.44 million -9.4%4.3%6.55 $148.33
11/28/20253,672,810 shares $559.66 million +9.8%4.8%5.34 $152.38
11/14/20253,345,887 shares $481.39 million -21.2%4.4%3.7 $143.88
10/31/20254,246,173 shares $595.70 million +5.8%5.6%7.05 $140.29
10/15/20254,020,000 shares $568.20 million -1.2%5.6%5.1 $141.34
9/30/20254,070,000 shares $565.16 million +7.1%5.7%5.2 $138.86
9/15/20253,800,000 shares $542.77 million -5.2%5.3%4.6 $142.84
8/31/20254,010,000 shares $578.19 million -2.9%5.6%4.8 $144.19
8/15/20254,130,000 shares $573.99 million -6.6%5.8%5.1 $138.98
7/31/20254,420,000 shares $506.94 million +19.1%6.2%5.5 $114.69
7/15/20253,710,000 shares $421.09 million +168.8%5.2%5.1 $113.50
6/30/20251,380,000 shares $158.59 million -53.2%8.8%10 $114.92
6/15/20252,950,000 shares $333.50 million -8.4%4.1%4.2 $113.05
5/31/20253,220,000 shares $353.91 million +22.9%4.5%4.7 $109.91
5/15/20252,620,000 shares $309.71 million -4.0%3.7%3.9 $118.21
4/30/20252,730,000 shares $309.99 million +14.7%3.8%4.3 $113.55
4/15/20252,380,000 shares $249.61 million +3.0%3.4%3.7 $104.88
3/31/20252,310,000 shares $250.91 million -6.1%3.3%3.5 $108.62
3/15/20252,460,000 shares $267.50 million -6.1%3.5%3.7 $108.74
2/28/20252,620,000 shares $291.59 million +19.6%3.7%4 $111.30
2/15/20252,190,000 shares $277.77 million +4.8%3.1%3.4 $126.84
1/31/20252,090,000 shares $252.43 million +8.3%2.9%3 $120.78
1/15/20251,930,000 shares $236.43 million +7.8%2.7%3.1 $122.50
12/31/20241,790,000 shares $206.92 million -9.6%2.5%3.1 $115.60
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12/15/20241,980,000 shares $250.83 million -9.2%2.8%3.4 $126.68
11/30/20242,180,000 shares $294.93 million +26.0%3.1%4 $135.29
11/15/20241,730,000 shares $227.24 million -8.5%2.4%3.4 $131.36
10/31/20241,890,000 shares $283.27 million +17.4%2.7%3.9 $149.88
10/15/20241,610,000 shares $249.45 million -11.1%2.3%3.2 $154.94
9/30/20241,810,000 shares $284.31 million +18.3%2.6%3.4 $157.08
9/15/20241,530,000 shares $225.80 million -8.9%2.2%2.8 $147.58
8/31/20241,680,000 shares $263.36 million +15.1%2.4%3 $156.76
8/15/20241,460,000 shares $217.67 million -4.6%2.1%2.6 $149.09
7/31/20241,530,000 shares $270.87 million +5.5%2.2%2.7 $177.04
7/15/20241,450,000 shares $240.15 million +5.1%2.1%2.9 $165.62
6/30/20241,380,000 shares $221.34 million +26.6%2.0%2.8 $160.39
6/15/20241,090,000 shares $186.23 million +11.3%1.6%2.4 $170.85
5/31/2024979,300 shares $170.08 million +3.1%1.4%2.1 $173.67
5/15/2024949,600 shares $167.29 million -22.8%1.4%2.1 $176.17
4/30/20241,230,000 shares $193.04 million -2.4%1.8%2.6 $156.94
4/15/20241,260,000 shares $204.78 million +6.8%1.8%2.7 $162.52
3/31/20241,180,000 shares $203.24 million -15.7%1.7%2.5 $172.24
3/15/20241,400,000 shares $228.59 million -4.8%2.0%2.9 $163.28
2/29/20241,470,000 shares $239.95 million -5.2%2.1%3 $163.23
2/15/20241,550,000 shares $254.08 million -25.5%2.3%3.3 $163.92
1/31/20242,080,000 shares $271.27 million -2.4%3.1%4.5 $130.42
1/15/20242,130,000 shares $273.04 million -13.4%3.2%4.4 $128.19
12/31/20232,460,000 shares $345.97 million -16.3%3.7%5 $140.64
12/15/20232,940,000 shares $413.33 million +5.8%4.4%5.5 $140.59
11/30/20232,780,000 shares $336.44 million +2.2%4.1%5.2 $121.02
11/15/20232,720,000 shares $324.99 million -13.1%4.0%4.8 $119.48
10/31/20233,130,000 shares $334.38 million -4.3%4.7%5.3 $106.83
10/15/20233,270,000 shares $379.29 million -6.8%4.8%5.3 $115.99
9/30/20233,510,000 shares $399.54 million +1.2%5.2%5.6 $113.83
9/15/20233,470,000 shares $414.56 million -11.5%5.1%5.7 $119.47
8/31/20233,920,000 shares $502.31 million +8.6%5.8%6.1 $128.14
8/15/20233,610,000 shares $467.46 million +2.0%5.2%5.4 $129.49
7/31/20233,540,000 shares $431.84 million -11.1%5.1%5.2 $121.99
7/15/20233,980,000 shares $473.42 million -6.1%6.0%6.2 $118.95
6/30/20234,240,000 shares $482.43 million -17.2%6.4%6.7 $113.78
6/15/20235,120,000 shares $566.89 million +7.6%7.7%7.9 $110.72
5/31/20234,760,000 shares $460.72 million +5.5%7.2%5.3 $96.79
5/15/20234,510,000 shares $395.17 million +3.7%6.8%4.8 $87.62
4/30/20234,350,000 shares $372.88 million -7.1%6.4%4.6 $85.72
4/15/20234,680,000 shares $381.23 million -8.1%6.9%4.4 $81.46
3/31/20235,090,000 shares $428.63 million +42.6%7.5%4.7 $84.21
3/15/20233,570,000 shares $284.81 million No Change5.1%3.3 $79.78
2/28/20233,570,000 shares $316.77 million No Change5.1%4.2 $88.73
2/15/20233,570,000 shares $342.40 million +1.7%5.1%4.3 $95.91
1/31/20233,510,000 shares $353.95 million +6.4%N/A3.9 $100.84
1/15/20233,300,000 shares $292.81 million -5.4%N/A3.7 $88.73
12/30/20223,490,000 shares $286.08 million +14.8%N/A4 $81.97
12/15/20223,040,000 shares $267.52 million -5.3%N/A3.6 $88.00
11/30/20223,210,000 shares $312.20 million -3.9%N/A3.9 $97.26
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11/15/20223,340,000 shares $297.19 million +20.6%N/A4.1 $88.98
10/31/20222,770,000 shares $320.99 million +18.4%N/A3.6 $115.88
10/15/20222,340,000 shares $280.22 million +22.5%N/A3.4 $119.75
9/30/20221,910,000 shares $237.55 million +60.5%N/A2.8 $124.37
9/15/20221,190,000 shares $160.53 million -27.4%N/A1.8 $134.90
8/31/20221,640,000 shares $222.55 million +1.2%N/A2.2 $135.70
8/15/20221,620,000 shares $243.78 million -17.4%N/A2.3 $150.48
7/31/20221,960,000 shares $232.46 million +27.3%N/A3 $118.60
7/15/20221,540,000 shares $145.08 million -7.8%N/A2.7 $94.21
6/30/20221,670,000 shares $150.42 million +36.9%N/A3.1 $90.07
6/15/20221,220,000 shares $113.55 million -34.8%N/A2.4 $93.07
5/31/20221,870,000 shares $204.78 million +28.1%2.6%4.4 $109.51
5/15/20221,460,000 shares $147.80 million +2.1%N/A3.4 $101.23
4/30/20221,430,000 shares $146.52 million +7.5%N/A3.3 $102.46
4/15/20221,330,000 shares $143.75 million -5.7%N/A3 $108.08
3/31/20221,410,000 shares $167.52 million +2.9%2.3%3.1 $118.81
3/15/20221,370,000 shares $160.73 million -33.2%2.3%3.2 $117.32
2/28/20222,050,000 shares $239.28 million +20.6%3.4%4.9 $116.72
2/15/20221,700,000 shares $206.18 million +10.4%2.8%4.3 $121.28
1/31/20221,540,000 shares $174.16 million +16.7%2.7%3.9 $113.09
1/15/20221,320,000 shares $157.62 million -2.2%2.3%3.5 $119.41
12/31/20211,350,000 shares $183.78 million +8.9%2.4%3.6 $136.13
12/15/20211,240,000 shares $164.26 million +13.8%2.2%3.1 $132.47
11/30/20211,090,000 shares $134.84 million -9.2%1.9%2.5 $123.71
11/15/20211,200,000 shares $156.02 million +14.3%2.1%2.8 $130.02
10/29/20211,050,000 shares $118.44 million -23.4%1.5%2.5 $112.80
10/15/20211,370,000 shares $154.73 million -4.2%2.4%3.4 $112.94
9/30/20211,430,000 shares $154.68 million +21.2%2.5%3.6 $108.17
9/15/20211,180,000 shares $124.82 million -4.8%2.1%2.3 $105.78
8/31/20211,240,000 shares $141.58 million +10.7%2.3%2.5 $114.18

WMS Short Interest - Frequently Asked Questions

Short interest is the volume of Advanced Drainage Systems shares that have been sold short but have not yet been closed out or covered. As of August 14th, investors have sold 2,418,389 shares of WMS short. 3.26% of Advanced Drainage Systems' shares are currently sold short. Learn More on Advanced Drainage Systems' 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. WMS shares currently have a short interest ratio of 2.7. Learn More on Advanced Drainage Systems'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. 3.26% of Advanced Drainage Systems' floating shares are currently sold short.

Advanced Drainage Systems saw a increase in short interest in August. As of August 14th, there was short interest totaling 2,418,389 shares, an increase of 5.0% from the previous total of 2,303,453 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.

3.26% of Advanced Drainage Systems' shares are currently sold short. Here is how the short interest of companies compare to Advanced Drainage Systems: UFP Industries, Inc. (3.65%), Boise Cascade, L.L.C. (4.26%), Builders FirstSource, Inc. (6.94%), Eagle Materials Inc (6.23%), Fortune Brands Innovations, Inc. (5.51%), Installed Building Products, Inc. (8.10%), Masco Corporation (3.76%), Madison Air Solutions Corporation (1.13%), Carlisle Companies Incorporated (5.46%), Lennox International, Inc. (5.58%),

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 WMS is an investing strategy that aims to generate trading profit from Advanced Drainage Systems as its price is falling. WMS shares are trading up $1.06 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 Advanced Drainage 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 WMS, 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 WMS, 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 WMS:

  • 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:WMS 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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