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Westlake (WLK) Short Interest Ratio & Short Volume

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$74.74 +0.14 (+0.19%)
As of 09/4/2026 03:58 PM Eastern
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Westlake Short Interest Overview

As of August 14, 2026, Westlake (WLK) had a short interest of 4.94 million shares sold short, representing 3.92% of the public float. This marks a 2.12% increase in short interest since the prior report. The short interest ratio (days to cover) is 3.7, meaning it would take 3.7 days of the average trading volume of 761,452 shares to cover all short positions.

Current Short Interest
4,936,041 shares
Previous Short Interest
4,833,608 shares
Change Vs. Previous Month
2.12%
Dollar Volume Sold Short
$392.55 million
Short Interest Ratio
3.7 Days to Cover
Last Record Date
August 14, 2026
Outstanding Shares
127,800,000 shares
Short Percent of Float
3.92%
Today's Trading Volume
570,442 shares
Average Trading Volume
761,452 shares
Today's Volume Vs. Average
75%
Short Selling Westlake?
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

WLK Short Interest Over Time

WLK Days to Cover Over Time

WLK Percentage of Float Shorted Over Time

Westlake Tesla Short Interest History & Recent Changes

Export
Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
8/14/20264,936,041 shares $392.55 million +2.1%3.9%3.7 $79.53
7/31/20264,833,608 shares $341.22 million -8.4%3.8%4.84 $70.59
7/15/20265,275,584 shares $406.48 million +8.4%4.2%4.48 $77.05
6/30/20264,867,899 shares $357.70 million +22.4%3.9%3.62 $73.48
6/15/20263,976,664 shares $346.92 million +6.3%3.1%4.7 $87.24
5/29/20263,741,497 shares $324.12 million +3.9%3.0%3.85 $86.63
5/15/20263,602,338 shares $319.61 million +3.4%2.9%2.49 $88.72
4/30/20263,483,406 shares $401.86 million +1.1%2.8%3.55 $115.36
4/15/20263,447,322 shares $396.57 million -22.6%2.7%3.25 $115.04
3/31/20264,453,477 shares $519.96 million -11.5%3.5%3.46 $116.75
3/13/20265,029,131 shares $563.49 million +0.2%4.0%3.52 $112.05
2/27/20265,018,091 shares $529.86 million -9.7%4.0%3.6 $105.59
2/13/20265,554,114 shares $555.62 million -8.9%4.4%3.71 $100.04
1/30/20266,098,743 shares $483.87 million -3.2%4.8%4.55 $79.34
1/15/20266,299,563 shares $556.58 million +1.7%5.0%4.12 $88.35
12/31/20256,195,597 shares $459.34 million +13.3%4.9%4.89 $74.14
12/15/20255,467,547 shares $403.03 million -11.8%4.3%2.84 $73.71
11/28/20256,197,433 shares $414.21 million +23.4%4.9%3.37 $66.84
11/14/20255,020,580 shares $313.78 million -3.5%4.0%4.18 $62.50
10/31/20255,200,752 shares $359.37 million +1.2%4.1%3.89 $69.10
10/15/20255,140,000 shares $397.44 million +15.5%15.6%4.4 $77.32
9/30/20254,450,000 shares $343.27 million -5.5%13.5%3.8 $77.14
9/15/20254,710,000 shares $407.61 million +7.1%14.3%4 $86.54
8/31/20254,400,000 shares $386.97 million -5.2%13.4%3.5 $87.95
8/15/20254,640,000 shares $389.99 million +6.7%14.1%3.5 $84.05
7/31/20254,350,000 shares $344.60 million +22.9%13.2%3.2 $79.22
7/15/20253,540,000 shares $289.72 million +277.7%10.7%2.8 $81.84
6/30/2025937,200 shares $71.17 million -66.9%5.4%0 $75.94
6/15/20252,830,000 shares $218.62 million -20.1%8.6%2.4 $77.25
5/31/20253,540,000 shares $251.27 million -3.8%10.7%3.2 $70.98
5/15/20253,680,000 shares $304.63 million +31.9%11.2%3.7 $82.78
4/30/20252,790,000 shares $257.88 million -11.7%8.5%3.2 $92.43
4/15/20253,160,000 shares $284.39 million +17.5%9.6%4.1 $90.00
3/31/20252,690,000 shares $269.37 million +33.8%8.2%3.6 $100.14
3/15/20252,010,000 shares $215.85 million +30.5%6.1%2.9 $107.39
2/28/20251,540,000 shares $173.09 million No Change4.6%2.5 $112.39
2/15/20251,540,000 shares $177.56 million +2.7%4.6%2.6 $115.30
1/31/20251,500,000 shares $171.65 million -1.3%4.5%2.6 $114.43
1/15/20251,520,000 shares $177.57 million -6.2%4.5%2.7 $116.82
12/31/20241,620,000 shares $185.73 million +16.6%4.8%2.9 $114.65
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12/15/20241,390,000 shares $166.05 million +6.9%4.2%2.6 $119.46
11/30/20241,300,000 shares $166.92 million +6.6%3.9%2.5 $128.40
11/15/20241,220,000 shares $154.53 million +11.9%3.7%2.4 $126.66
10/31/20241,090,000 shares $143.81 million +13.3%3.3%2.3 $131.94
10/15/2024962,100 shares $136.43 million -10.9%2.9%2.1 $141.80
9/30/20241,080,000 shares $162.31 million -6.9%3.2%2.3 $150.29
9/15/20241,160,000 shares $161.16 million +1.8%3.5%2.5 $138.93
8/31/20241,140,000 shares $165.80 million -7.3%3.4%2.3 $145.44
8/15/20241,230,000 shares $180.96 million +1.7%3.7%2.7 $147.12
7/31/20241,210,000 shares $179.10 million +0.8%3.6%2.5 $148.02
7/15/20241,200,000 shares $175.63 million -8.4%3.6%2.5 $146.36
6/30/20241,310,000 shares $189.71 million -20.1%3.9%2.8 $144.82
6/15/20241,640,000 shares $245.72 million -5.8%4.9%3.4 $149.83
5/31/20241,740,000 shares $279.37 million +33.9%5.3%4.1 $160.56
5/15/20241,300,000 shares $203.14 million +6.6%3.9%3.1 $156.26
4/30/20241,220,000 shares $179.78 million -16.4%3.7%2.7 $147.36
4/15/20241,460,000 shares $223.79 million -3.3%4.4%3.5 $153.28
3/31/20241,510,000 shares $230.73 million +2.7%4.6%3.9 $152.80
3/15/20241,470,000 shares $215.78 million -10.4%4.5%4.1 $146.79
2/29/20241,640,000 shares $227.48 million +4.5%5.0%4.7 $138.71
2/15/20241,570,000 shares $226.43 million -10.3%4.6%4.6 $144.23
1/31/20241,750,000 shares $242.11 million -10.7%5.3%5.7 $138.35
1/15/20241,960,000 shares $263.84 million +2.1%6.0%5.8 $134.61
12/31/20231,920,000 shares $268.72 million -11.5%5.9%5.6 $139.96
12/15/20232,170,000 shares $304.02 million -8.1%6.6%5.6 $140.10
11/30/20232,360,000 shares $302.95 million -5.2%7.3%5.8 $128.37
11/15/20232,490,000 shares $319.89 million -5.7%7.7%5.7 $128.47
10/31/20232,640,000 shares $304.58 million +1.5%8.1%5.8 $115.37
10/15/20232,600,000 shares $314.83 million -0.8%8.0%5.6 $121.09
9/30/20232,620,000 shares $326.64 million +6.9%8.1%5.4 $124.67
9/15/20232,450,000 shares $311.69 million +2.9%7.6%5.2 $127.22
8/31/20232,380,000 shares $311.71 million -2.1%7.4%4.9 $130.97
8/15/20232,430,000 shares $316.14 million +8.5%7.5%4.9 $130.10
7/31/20232,240,000 shares $308 million -7.1%6.9%4.6 $137.50
7/15/20232,410,000 shares $303.11 million -11.1%7.5%4.9 $125.77
6/30/20232,710,000 shares $323.95 million +11.1%8.4%5.6 $119.54
6/15/20232,440,000 shares $282.28 million +5.6%7.6%4.9 $115.69
5/31/20232,310,000 shares $240.24 million -0.9%7.2%4.6 $104.00
5/15/20232,330,000 shares $268.63 million +0.9%7.3%4.6 $115.29
4/30/20232,310,000 shares $262.83 million -7.2%7.2%4.4 $113.78
4/15/20232,490,000 shares $294.12 million +0.8%7.8%4.8 $118.12
3/31/20232,470,000 shares $286.47 million -3.9%7.7%4.7 $115.98
3/15/20232,570,000 shares $272.27 million -17.9%7.8%4.8 $105.94
2/28/20233,130,000 shares $372.91 million +3.0%9.5%5.8 $119.14
2/15/20233,040,000 shares $375.59 million +3.4%9.2%5.7 $123.55
1/31/20232,940,000 shares $360.89 million -6.7%8.9%5.2 $122.75
1/15/20233,150,000 shares $360.33 million -3.1%9.6%5 $114.39
12/30/20223,250,000 shares $333.26 million +12.5%9.9%3.9 $102.54
12/15/20222,890,000 shares $303.57 million +2.5%8.8%3.3 $105.04
11/30/20222,820,000 shares $303.57 million -4.4%8.5%3 $107.65
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Marc Chaikin, founder of Chaikin Analytics, says two forces - AI disruption and fracturing global trade - are triggering a historic wealth transfer already underway in 2026. Household names like Intuit (-57%), Boston Scientific (-49%), and Tractor Supply (-40%) are cratering, while lesser-known companies like Sandisk (+573%) and Rackspace (+444%) surge. Chaikin has identified specific stocks he believes investors should sell before they fall further - and the names may surprise you. He's also pinpointing a company tapped as Nvidia's self-driving partner and a potential AI megadeal that could split into three high-growth stocks. Stream his free presentation to get every buy and sell recommendation with no membership or credit card required.tc pixel

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11/15/20222,950,000 shares $318.54 million +3.5%8.9%3.1 $107.98
10/31/20222,850,000 shares $275.45 million +10.0%8.6%3 $96.65
10/15/20222,590,000 shares $239.63 million +2.0%7.8%2.8 $92.52
9/30/20222,540,000 shares $220.68 million +39.6%7.7%3.4 $86.88
9/15/20221,820,000 shares $170.88 million -1.1%5.5%2.5 $93.89
8/31/20221,840,000 shares $181.48 million +14.3%5.5%2.4 $98.63
8/15/20221,610,000 shares $168.57 million -23.0%4.8%1.9 $104.70
7/31/20222,090,000 shares $203.44 million +17.4%5.9%2.4 $97.34
7/15/20221,780,000 shares $163.81 million +4.1%5.1%2 $92.03
6/30/20221,710,000 shares $167.61 million -12.3%4.9%1.9 $98.02
6/15/20221,950,000 shares $209.22 million +3.7%5.5%2.2 $107.29
5/31/20221,880,000 shares $248.37 million +28.8%5.6%2.4 $132.11
5/15/20221,460,000 shares $190.60 million -5.8%4.4%1.9 $130.55
4/30/20221,550,000 shares $196.15 million +15.7%4.7%2.1 $126.55
4/15/20221,340,000 shares $164.16 million -6.3%4.0%1.9 $122.51
3/31/20221,430,000 shares $176.46 million -28.5%4.3%2.1 $123.40
3/15/20222,000,000 shares $231.38 million +25.8%6.0%3.2 $115.69
2/28/20221,590,000 shares $175.39 million +8.9%4.8%2.6 $110.31
2/15/20221,460,000 shares $154.73 million +23.7%4.4%2.5 $105.98
1/31/20221,180,000 shares $116.41 million +35.6%3.6%2.1 $98.65
1/15/2022870,000 shares $93.31 million -31.5%2.6%1.6 $107.25
12/31/20211,270,000 shares $123.36 million +3.3%3.8%2.4 $97.13
12/15/20211,230,000 shares $112.25 million +13.9%3.7%2.2 $91.26
11/30/20211,080,000 shares $100.35 million +44.8%3.3%1.8 $92.92
11/15/2021746,100 shares $77.15 million -47.5%2.3%1.3 $103.40
10/29/20211,420,000 shares $138.22 million -9.0%4.3%2.3 $97.34
10/15/20211,560,000 shares $153.04 million -12.9%4.7%2.5 $98.10
9/30/20211,790,000 shares $163.14 million -21.5%5.4%2.8 $91.14
9/15/20212,280,000 shares $200.91 million +0.4%6.9%3.6 $88.12

WLK Short Interest - Frequently Asked Questions

Short interest is the volume of Westlake shares that have been sold short but have not yet been closed out or covered. As of August 14th, traders have sold 4,936,041 shares of WLK short. 3.92% of Westlake's shares are currently sold short. Learn More on Westlake'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. WLK shares currently have a short interest ratio of 3.7. Learn More on Westlake'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. 3.92% of Westlake's floating shares are currently sold short.

Westlake saw a increase in short interest in the month of August. As of August 14th, there was short interest totaling 4,936,041 shares, an increase of 2.1% from the previous total of 4,833,608 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.

3.92% of Westlake's shares are currently sold short. Here is how the short interest of companies compare to Westlake: Sprott Focus Trust, Inc. (0.29%), AdvanSix (2.50%), Celanese Corporation (6.24%), Dow Inc. (5.22%), Eastman Chemical Company (5.05%), Huntsman Corporation (8.43%), LyondellBasell Industries N.V. (3.91%), Olin Corporation (9.89%), Methanex Corporation (2.62%), Cabot Corporation (8.22%),

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 WLK is an investing strategy that aims to generate trading profit from Westlake as its price is falling. WLK shares are trading up $0.14 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 Westlake 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 WLK, 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 WLK, 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 WLK:

  • 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.


Related Companies
Short Interest Tools

Short interest data for NYSE:WLK 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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