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Select Medical (SEM) Short Interest Ratio & Short Volume

Select Medical logo
$16.62 -0.01 (-0.03%)
As of 12:16 PM Eastern
This is a fair market value price provided by Massive. Learn more.
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Select Medical Short Interest Overview

As of May 29, 2026, Select Medical (SEM) had a short interest of 2.93 million shares sold short, representing 2.81% of the public float. This marks a 18.53% increase in short interest since the prior report. The short interest ratio (days to cover) is 1.3, meaning it would take 1.3 days of the average trading volume of 1.75 million shares to cover all short positions.

Current Short Interest
2,926,136 shares
Previous Short Interest
2,468,737 shares
Change Vs. Previous Month
18.53%
Dollar Volume Sold Short
$48.35 million
Short Interest Ratio
1.3 Days to Cover
Last Record Date
May 29, 2026
Outstanding Shares
123,940,000 shares
Short Percent of Float
2.81%
Today's Trading Volume
184,796 shares
Average Trading Volume
1,745,069 shares
Today's Volume Vs. Average
11%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

SEM Short Interest Over Time

SEM Days to Cover Over Time

SEM Percentage of Float Shorted Over Time

Select Medical 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
5/29/20262,926,136 shares $48.35 million +18.5%2.8%1.29 $16.53
5/15/20262,468,737 shares $40.75 million +10.4%2.4%1.75 $16.51
4/30/20262,236,252 shares $36.75 million -16.3%2.1%1.33 $16.44
4/15/20262,670,372 shares $43.75 million -2.5%2.6%1.83 $16.39
3/31/20262,737,454 shares $44.61 million +19.4%2.6%1.07 $16.30
3/13/20262,292,503 shares $37.24 million -24.4%2.2%0.43 $16.25
2/27/20263,030,414 shares $45.26 million -13.8%2.9%2.41 $14.94
2/13/20263,515,119 shares $57.59 million -14.1%3.2%4.16 $16.38
1/30/20264,089,664 shares $61.57 million -7.0%3.7%7.08 $15.06
1/15/20264,395,657 shares $67.91 million +0.4%4.0%8.28 $15.45
12/31/20254,377,998 shares $65.14 million -6.5%4.0%3.91 $14.88
12/15/20254,681,041 shares $73.31 million -0.2%4.3%4.03 $15.66
11/28/20254,688,978 shares $72.63 million -1.4%4.3%3.62 $15.49
11/14/20254,755,575 shares $62.22 million +35.7%4.3%4.4 $13.08
10/31/20253,504,483 shares $48.46 million -1.9%3.2%3.08 $13.83
10/15/20253,570,000 shares $48.53 million -9.6%3.4%3.1 $13.59
9/30/20253,950,000 shares $50.60 million +0.8%3.8%3.4 $12.81
9/15/20253,920,000 shares $48.02 million +9.5%3.7%3.6 $12.25
8/31/20253,580,000 shares $46.63 million -1.9%3.4%3.1 $13.03
8/15/20253,650,000 shares $46.36 million +16.6%3.5%3 $12.70
7/31/20253,130,000 shares $46.47 million +5.7%3.0%2.5 $14.85
7/15/20252,960,000 shares $43.25 million -2.3%2.7%2.2 $14.61
6/30/20253,030,000 shares $46.03 million -9.0%2.8%2.3 $15.19
6/15/20253,330,000 shares $50.12 million -23.1%3.0%2.6 $15.05
5/31/20254,330,000 shares $66.34 million +4.3%3.9%3.6 $15.32
5/15/20254,150,000 shares $63.04 million +8.4%3.8%3.3 $15.19
4/30/20253,830,000 shares $69.94 million -9.0%3.5%3.2 $18.26
4/15/20254,210,000 shares $68.56 million -3.2%3.8%4.3 $16.29
3/31/20254,350,000 shares $72.62 million +10.4%4.0%4.5 $16.70
3/15/20253,940,000 shares $66.13 million -11.9%3.6%3.9 $16.79
2/28/20254,470,000 shares $81.31 million +17.3%4.1%4.3 $18.19
2/15/20253,810,000 shares $70.80 million +6.1%3.5%3.3 $18.58
1/31/20253,590,000 shares $70.58 million +12.5%3.3%3.3 $19.66
1/15/20253,190,000 shares $61.47 million -2.2%3.0%3 $19.27
12/31/20243,260,000 shares $61.45 million +28.9%3.1%3.2 $18.85
12/15/20242,530,000 shares $49.28 million +28.4%2.4%2.7 $19.48
11/30/20241,970,000 shares $41.59 million +10.1%1.9%2.4 $21.11
11/15/20241,790,000 shares $67.04 million -11.0%1.7%2.9 $37.45
10/31/20242,010,000 shares $64.34 million -7.8%2.0%3.6 $32.01
10/15/20242,180,000 shares $73.67 million -7.2%2.1%3.7 $33.80
He Called NVIDIA at $1.10 – Now He Says, “SELL” (Ad)

The analyst who called NVIDIA at $1.10 now says sell. According to Alexander Green, Chief Investment Strategist at The Oxford Club, AI is doubling in power every 6 months - and the implications for investors are staggering. Green warns that holding the leading AI stocks could be the wrong move as this shift accelerates. With 41 years of market experience, he says a rare window is open right now - but not for long.tc pixel

Watch Alexander Green's short presentation before this window closes
9/30/20242,350,000 shares $81.94 million -10.3%2.3%3.7 $34.87
9/15/20242,620,000 shares $92.30 million +4.4%2.6%3.7 $35.23
8/31/20242,510,000 shares $90.54 million -0.4%2.5%3.6 $36.07
8/15/20242,520,000 shares $83.71 million -2.3%2.5%3.6 $33.22
7/31/20242,580,000 shares $102.50 million -1.5%2.5%3.7 $39.73
7/15/20242,620,000 shares $98.51 million +13.9%2.6%4.2 $37.60
6/30/20242,300,000 shares $80.64 million +7.0%2.3%3.8 $35.06
6/15/20242,150,000 shares $72.71 million +3.9%2.1%4 $33.82
5/31/20242,070,000 shares $71.52 million -2.4%2.0%3.9 $34.55
5/15/20242,120,000 shares $74.03 million -0.9%2.1%3.8 $34.92
4/30/20242,140,000 shares $60.69 million -6.1%2.1%3.9 $28.36
4/15/20242,280,000 shares $62.86 million +2.7%2.3%4.6 $27.57
3/31/20242,220,000 shares $66.93 million -11.9%2.2%4.3 $30.15
3/15/20242,520,000 shares $71.74 million -8.4%2.5%4.4 $28.47
2/29/20242,750,000 shares $74.91 million -1.1%2.7%4.6 $27.24
2/15/20242,780,000 shares $75.57 million -3.8%2.7%4.6 $27.19
1/31/20242,890,000 shares $75.08 million -12.2%2.9%4.9 $25.98
1/15/20243,290,000 shares $86.89 million -5.5%3.3%5 $26.41
12/31/20233,480,000 shares $81.78 million -6.0%3.4%5.3 $23.50
12/15/20233,700,000 shares $87.47 million +16.0%3.7%6.4 $23.64
11/30/20233,190,000 shares $72.06 million +24.1%3.2%5.6 $22.59
11/15/20232,570,000 shares $59.62 million +0.4%2.5%4.7 $23.20
10/31/20232,560,000 shares $58.21 million -2.3%2.5%4.8 $22.74
10/15/20232,620,000 shares $60.71 million -3.3%2.6%5.3 $23.17
9/30/20232,710,000 shares $68.48 million +3.4%2.7%5.4 $25.27
9/15/20232,620,000 shares $67.78 million +0.8%2.6%5.2 $25.87
8/31/20232,600,000 shares $75.95 million -24.6%2.5%4.8 $29.21
8/15/20233,450,000 shares $98.01 million +8.8%3.3%6.3 $28.41
7/31/20233,170,000 shares $95.07 million -7.6%3.1%5.4 $29.99
7/15/20233,430,000 shares $102.21 million -12.1%3.3%5.5 $29.80
6/30/20233,900,000 shares $124.25 million -18.1%3.7%6.6 $31.86
6/15/20234,760,000 shares $137.90 million -4.2%4.6%8.4 $28.97
5/31/20234,970,000 shares $136.03 million +11.4%4.8%9.3 $27.37
5/15/20234,460,000 shares $126.00 million -14.2%4.3%7.7 $28.25
4/30/20235,200,000 shares $158.60 million -16.9%5.0%9.2 $30.50
4/15/20236,260,000 shares $176.97 million +0.2%6.0%12.7 $28.27
3/31/20236,250,000 shares $161.56 million -1.4%6.0%12.9 $25.85
3/15/20236,340,000 shares $158.82 million +3.1%6.1%12.7 $25.05
2/28/20236,150,000 shares $167.22 million -7.8%6.0%12.1 $27.19
2/15/20236,670,000 shares $199.43 million -0.3%6.5%14.1 $29.90
1/31/20236,690,000 shares $194.48 million +2.3%6.5%13.4 $29.07
1/15/20236,540,000 shares $187.04 million -0.5%6.4%11.1 $28.60
12/30/20226,570,000 shares $163.13 million -13.4%6.4%10.6 $24.83
12/15/20227,590,000 shares $186.64 million -3.2%7.4%11.7 $24.59
11/30/20227,840,000 shares $192.71 million -6.6%7.7%12.6 $24.58
11/15/20228,390,000 shares $206.23 million +11.0%8.2%13 $24.58
10/31/20227,560,000 shares $194.14 million +13.2%7.4%11.8 $25.68
10/15/20226,680,000 shares $146.56 million +4.9%6.6%11.1 $21.94
9/30/20226,370,000 shares $140.78 million No Change6.3%11.2 $22.10
9/15/20226,370,000 shares $163.58 million +1.1%6.3%10.2 $25.68
He Called NVIDIA at $1.10 – Now He Says, “SELL” (Ad)

The analyst who called NVIDIA at $1.10 now says sell. According to Alexander Green, Chief Investment Strategist at The Oxford Club, AI is doubling in power every 6 months - and the implications for investors are staggering. Green warns that holding the leading AI stocks could be the wrong move as this shift accelerates. With 41 years of market experience, he says a rare window is open right now - but not for long.tc pixel

Watch Alexander Green's short presentation before this window closes
8/31/20226,300,000 shares $161.53 million -12.4%6.2%9.3 $25.64
8/15/20227,190,000 shares $199.38 million +32.2%7.0%10.3 $27.73
7/31/20225,440,000 shares $161.13 million -4.6%5.2%6.8 $29.62
7/15/20225,700,000 shares $150.48 million +7.6%5.4%6.9 $26.40
6/30/20225,300,000 shares $125.19 million +3.9%5.0%6.4 $23.62
6/15/20225,100,000 shares $117.66 million -3.0%4.8%5.9 $23.07
5/31/20225,260,000 shares $128.08 million -7.2%4.9%6.3 $24.35
5/15/20225,670,000 shares $146.29 million -3.4%5.3%6.6 $25.80
4/30/20225,870,000 shares $132.72 million +7.1%5.4%7.3 $22.61
4/15/20225,480,000 shares $135.08 million +7.9%5.1%6.9 $24.65
3/31/20225,080,000 shares $121.87 million -5.2%4.7%5.8 $23.99
3/15/20225,360,000 shares $130.14 million -0.6%4.9%6.5 $24.28
2/28/20225,390,000 shares $124.78 million +4.1%5.0%6.6 $23.15
2/15/20225,180,000 shares $124.89 million +43.5%4.8%6.4 $24.11
1/31/20223,610,000 shares $83.86 million +48.0%3.3%4.5 $23.23
1/15/20222,440,000 shares $70.56 million +0.8%2.2%3.2 $28.92
12/31/20212,420,000 shares $71.15 million +9.0%2.2%3.6 $29.40
12/15/20212,220,000 shares $65.60 million +5.7%2.0%3.4 $29.55
11/30/20212,100,000 shares $56.39 million +14.1%1.9%3.3 $26.85
11/15/20211,840,000 shares $61.62 million -20.7%1.7%2.9 $33.49
10/29/20212,320,000 shares $77.07 million -15.3%2.1%3.6 $33.22
10/15/20212,740,000 shares $91.68 million -7.1%2.5%4.2 $33.46
9/30/20212,950,000 shares $106.70 million -16.4%2.7%4.4 $36.17
9/15/20213,530,000 shares $122.31 million +10.7%3.2%5.1 $34.65
8/31/20213,190,000 shares $110.28 million +32.9%2.9%4.3 $34.57
8/13/20212,400,000 shares $84.79 million -21.1%2.2%3.3 $35.33
7/30/20213,040,000 shares $119.93 million -2.9%2.7%4 $39.45
7/15/20213,130,000 shares $122.29 million -3.1%2.8%4.1 $39.07
6/30/20213,230,000 shares $136.50 million -15.5%2.9%4.2 $42.26
6/15/20213,820,000 shares $163.00 million -1.3%3.4%5.1 $42.67

SEM Short Interest - Frequently Asked Questions

Short interest is the volume of Select Medical shares that have been sold short but have not yet been closed out or covered. As of May 29th, traders have sold 2,926,136 shares of SEM short. 2.81% of Select Medical's shares are currently sold short. Learn More on Select Medical'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. SEM shares currently have a short interest ratio of 1.3. Learn More on Select Medical'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. 2.81% of Select Medical's floating shares are currently sold short.

Select Medical saw a increase in short interest in the month of May. As of May 29th, there was short interest totaling 2,926,136 shares, an increase of 18.5% from the previous total of 2,468,737 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.

2.81% of Select Medical's shares are currently sold short. Here is how the short interest of companies compare to Select Medical: Atai Beckley N.V. (8.09%), Brookdale Senior Living Inc. (16.30%), Acadia Healthcare Company, Inc. (25.27%), U.S. Physical Therapy, Inc. (7.03%), Petco Health and Wellness Company, Inc. (6.04%), Community Health Systems, Inc. (10.24%), HCA Healthcare, Inc. (2.39%), Alcon (1.14%), Tenet Healthcare Corporation (3.84%), Encompass Health Corporation (3.46%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($81.27 billion), Invesco QQQ ($49.06 billion), iShares Russell 2000 ETF ($23.61 billion), Western Digital Corporation ($16.93 billion), Sandisk Corporation ($15.61 billion), Salesforce Inc. ($11.65 billion), SPDR S&P Biotech ETF ($10.52 billion), Nebius Group N.V. ($10.24 billion), Lumentum Holdings Inc. ($8.74 billion), and iShares iBoxx $ High Yield Corporate Bond ETF ($8.21 billion). View all of the most shorted stocks.

Short selling SEM is an investing strategy that aims to generate trading profit from Select Medical as its price is falling. SEM shares are trading up $0.06 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 Select Medical 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 SEM, 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 SEM, twice per month. The most recent reporting period available is May, 29 2026.

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

  • 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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This page (NYSE:SEM) was last updated on 6/10/2026 by MarketBeat.com Staff.
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