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Surmodics (SRDX) Short Interest Ratio & Short Volume

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Surmodics Short Interest Overview

As of November 14, 2025, Surmodics (SRDX) had a short interest of 474,950 shares sold short, representing 3.65% of the public float. This marks a 6.16% increase in short interest since the prior report. The short interest ratio (days to cover) is 1.0, meaning it would take 1.0 days of the average trading volume of 269,318 shares to cover all short positions.

Current Short Interest
474,950 shares
Previous Short Interest
447,402 shares
Change Vs. Previous Month
6.16%
Dollar Volume Sold Short
$19.76 million
Short Interest Ratio
1.0 Days to Cover
Last Record Date
November 14, 2025
Outstanding Shares
14,298,000 shares
Short Percent of Float
3.65%
Today's Trading Volume
5,342,600 shares
Average Trading Volume
269,318 shares
Today's Volume Vs. Average
1,984%
Short Selling Surmodics?
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

SRDX Short Interest Over Time

SRDX Days to Cover Over Time

SRDX Percentage of Float Shorted Over Time

Surmodics 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
11/14/2025474,950 shares $19.76 million +6.2%3.6%0.95 $41.61
10/31/2025447,402 shares $12.27 million +11.7%3.4%5.53 $27.43
10/15/2025400,400 shares $11.10 million +22.9%2.9%1.9 $27.72
9/30/2025325,800 shares $9.74 million -2.1%2.4%1.5 $29.89
9/15/2025332,900 shares $10.78 million -13.6%2.4%1.6 $32.37
8/31/2025385,500 shares $13.12 million -7.9%2.8%1.9 $34.04
8/15/2025418,400 shares $15.67 million +8.5%3.1%2.3 $37.46
7/31/2025385,500 shares $13.84 million +16.2%2.8%3 $35.90
7/15/2025331,800 shares $10.40 million -3.1%2.4%4.1 $31.33
6/30/2025342,400 shares $10.17 million -14.8%2.5%4.2 $29.71
6/15/2025401,700 shares $11.71 million -1.2%2.9%5 $29.16
5/31/2025406,600 shares $11.81 million -4.7%3.0%4.4 $29.04
5/15/2025426,700 shares $11.96 million -10.5%3.1%3.2 $28.03
4/30/2025476,500 shares $13.35 million +3.1%3.5%2.9 $28.01
4/15/2025462,300 shares $13.10 million +35.9%3.4%2.3 $28.34
3/31/2025340,200 shares $10.39 million +11.9%2.5%1.3 $30.53
3/15/2025303,900 shares $8.60 million +12.0%2.2%1.1 $28.30
2/28/2025271,300 shares $8.91 million -37.0%2.0%1 $32.86
2/15/2025430,900 shares $14.69 million -28.4%3.2%1.7 $34.10
1/31/2025601,700 shares $20.48 million +30.0%4.4%2.4 $34.04
1/15/2025462,800 shares $17.04 million +33.0%3.4%2 $36.81
12/31/2024348,000 shares $13.78 million +3.4%2.5%1.7 $39.60
12/15/2024336,600 shares $13.47 million -0.4%2.5%1.7 $40.03
11/30/2024337,800 shares $13.33 million -3.0%2.5%1.5 $39.45
11/15/2024348,400 shares $13.49 million +5.3%2.5%1.4 $38.72
10/31/2024331,000 shares $12.42 million +4.2%2.4%1.2 $37.52
10/15/2024317,700 shares $12.25 million -1.8%2.3%1 $38.55
9/30/2024323,600 shares $12.55 million +0.8%2.4%0.9 $38.78
9/15/2024321,000 shares $12.63 million -25.3%2.4%0.8 $39.36
8/31/2024429,600 shares $17.03 million -7.0%3.2%1.1 $39.63
8/15/2024462,000 shares $18.35 million -36.9%3.4%1 $39.72
7/31/2024732,100 shares $30.31 million +4.6%5.4%1.8 $41.40
7/15/2024700,100 shares $29.38 million -12.7%5.1%2 $41.97
6/30/2024801,600 shares $33.70 million +32.4%5.9%2.7 $42.04
6/15/2024605,500 shares $25.40 million +18.0%4.4%2.6 $41.95
5/31/2024513,000 shares $21.58 million +2.4%3.8%2.9 $42.06
5/15/2024501,100 shares $16.82 million +1.1%3.7%7 $33.56
4/30/2024495,800 shares $12.74 million +4.8%3.6%6.9 $25.69
4/15/2024472,900 shares $12.49 million +5.8%3.5%7.5 $26.42
3/31/2024447,000 shares $13.11 million +1.3%3.3%9.8 $29.34
3/15/2024441,100 shares $12.43 million -1.1%3.2%10 $28.17
2/29/2024446,100 shares $14.23 million +3.8%3.3%7.9 $31.90
2/15/2024429,700 shares $13.99 million +6.9%3.2%7.3 $32.56
1/31/2024402,100 shares $14.16 million -6.9%3.0%6 $35.21
1/15/2024432,000 shares $14.57 million -3.3%3.2%5.9 $33.73
12/31/2023446,700 shares $16.24 million -8.4%3.3%6 $36.35
12/15/2023487,800 shares $18.41 million +8.0%3.6%6.7 $37.75
11/30/2023451,500 shares $14.82 million +91.9%3.3%7.5 $32.82
11/15/2023235,300 shares $7.96 million +71.0%1.7%3.7 $33.82
10/31/2023137,600 shares $4.05 million +1.8%1.0%2.1 $29.46
10/15/2023135,200 shares $4.01 million -8.0%1.0%1.9 $29.65
9/30/2023147,000 shares $4.72 million +18.7%1.1%2.3 $32.09
9/15/2023123,800 shares $4.29 million +1.4%0.9%1.9 $34.63
8/31/2023122,100 shares $4.50 million -10.8%0.9%1.4 $36.82
8/15/2023136,800 shares $5.13 million -9.8%1.0%1.5 $37.53
7/31/2023151,600 shares $4.86 million -7.2%1.1%1.7 $32.07
7/15/2023163,300 shares $4.91 million +7.7%1.2%1.8 $30.06
6/30/2023151,600 shares $4.75 million -16.2%1.1%1.6 $31.31
6/15/2023180,900 shares $4.60 million -30.5%1.3%1.5 $25.43
5/31/2023260,200 shares $4.77 million +4.3%1.9%1.5 $18.33
5/15/2023249,600 shares $4.74 million -6.9%1.8%1.4 $18.99
4/30/2023268,000 shares $6.17 million -29.9%2.0%1.4 $23.04
4/15/2023382,400 shares $9.00 million -3.1%2.8%2.1 $23.53
3/31/2023394,800 shares $8.99 million -27.5%2.9%2.1 $22.78
3/15/2023544,500 shares $9.47 million +24.8%4.0%3.2 $17.39
2/28/2023436,400 shares $9.53 million +17.1%3.2%5.2 $21.84
2/15/2023372,700 shares $9.51 million +9.2%2.8%5.7 $25.52
1/31/2023341,300 shares $9.59 million +16.8%2.5%5.7 $28.11
1/15/2023292,100 shares $10.58 million -1.7%2.2%5.3 $36.23
12/30/2022297,200 shares $10.14 million +48.6%2.2%7 $34.12
12/15/2022200,000 shares $7.19 million -16.6%1.5%4.7 $35.97
11/30/2022239,700 shares $8.66 million -21.3%1.8%6.3 $36.13
11/15/2022304,700 shares $10.60 million -16.0%2.3%7.8 $34.80
10/31/2022362,900 shares $12.39 million +3.1%2.7%10.2 $34.14
10/15/2022352,000 shares $10.39 million -1.9%2.6%9.5 $29.52
9/30/2022358,900 shares $10.91 million -7.3%2.7%9.5 $30.40
9/15/2022387,000 shares $11.93 million +8.1%2.9%10.4 $30.83
8/31/2022357,900 shares $12.06 million -8.7%2.7%9.5 $33.69
8/15/2022391,800 shares $15.16 million -5.2%2.9%10.8 $38.69
7/31/2022413,300 shares $14.38 million -0.7%3.1%10.8 $34.80
7/15/2022416,000 shares $14.97 million +18.3%3.1%11 $35.98
6/30/2022351,800 shares $13.10 million -5.0%2.6%9.5 $37.23
6/15/2022370,300 shares $13.65 million +7.3%2.7%9.6 $36.85
5/31/2022345,200 shares $13.54 million -4.8%2.6%9.3 $39.23
5/15/2022362,500 shares $13.02 million +17.7%2.7%8.9 $35.91
4/30/2022308,100 shares $11.91 million +2.7%2.3%7.1 $38.66
4/15/2022299,900 shares $12.73 million -17.8%2.2%6.4 $42.45
3/31/2022364,600 shares $16.53 million -18.7%2.7%7.2 $45.33
3/15/2022448,700 shares $18.67 million +22.6%3.3%8.8 $41.62
2/28/2022365,900 shares $16.42 million +6.1%2.7%6.6 $44.88
2/15/2022344,800 shares $14.97 million +18.5%2.6%6.1 $43.42
1/31/2022291,100 shares $13.30 million +6.3%2.2%4.9 $45.68
1/15/2022273,900 shares $12.89 million +8.0%2.0%5.1 $47.06
12/31/2021253,600 shares $12.21 million +17.6%1.9%5 $48.15
12/15/2021215,700 shares $9.76 million +9.0%1.6%4.2 $45.26
11/30/2021197,900 shares $8.69 million +9.4%1.5%3.9 $43.93
11/15/2021180,900 shares $8.84 million -37.1%1.4%3.7 $48.88
10/29/2021287,800 shares $16.02 million -1.4%2.2%6.8 $55.66
10/15/2021291,800 shares $16.02 million -6.7%2.2%7.1 $54.90
9/30/2021312,800 shares $17.39 million -5.4%2.3%7.6 $55.60
9/15/2021330,500 shares $18.99 million +1.0%2.5%8.3 $57.47
8/31/2021327,100 shares $19.65 million +7.3%2.4%8.8 $60.07
8/13/2021304,900 shares $16.19 million -6.2%2.3%8.5 $53.10
7/30/2021324,900 shares $17.91 million -5.3%2.4%8.6 $55.11
7/15/2021343,000 shares $18.11 million -4.4%2.6%8.5 $52.81
6/30/2021358,900 shares $19.47 million -10.5%2.7%8.7 $54.25
6/15/2021401,000 shares $21.33 million -15.0%3.0%8.6 $53.20
5/28/2021472,000 shares $25.04 million +1.6%3.5%9.9 $53.05
5/14/2021464,800 shares $24.75 million +21.5%3.5%9.3 $53.24

SRDX Short Interest - Frequently Asked Questions

What is Surmodics' current short interest?

Short interest is the volume of Surmodics shares that have been sold short but have not yet been closed out or covered. As of November 14th, investors have sold 474,950 shares of SRDX short. 3.65% of Surmodics' shares are currently sold short. Learn More on Surmodics' current short interest.

What is a good short interest ratio for Surmodics?

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. SRDX shares currently have a short interest ratio of 1.0. Learn More on Surmodics's short interest ratio.

Which institutional investors are shorting Surmodics?

As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Surmodics: Readystate Asset Management LP, Caption Management LLC, Schonfeld Strategic Advisors LLC, Simplex Trading LLC, and BCK Capital Management LP. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission.

What is a good short interest percentage for Surmodics?

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. 3.65% of Surmodics' floating shares are currently sold short.

Is Surmodics' short interest increasing or decreasing?

Surmodics saw a increase in short interest in November. As of November 14th, there was short interest totaling 474,950 shares, an increase of 6.2% from the previous total of 447,402 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.

How does Surmodics' short interest compare to its competitors?

3.65% of Surmodics' shares are currently sold short. Here is how the short interest of companies compare to Surmodics: Smartstop Self Storage REIT Inc (8.15%), AtriCure, Inc. (7.40%), Alphatec Holdings, Inc. (11.73%), Integra LifeSciences Holdings Corporation (12.18%), Orthofix Medical Inc. (3.37%), AngioDynamics, Inc. (5.56%), Accuray Incorporated (6.96%), Rockwell Medical, Inc. (2.61%), Intuitive Surgical, Inc. (1.89%), Abbott Laboratories (1.25%),

Which stocks are the most shorted right now?

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($79.41 billion), Invesco QQQ ($31.14 billion), iShares Russell 2000 ETF ($20.32 billion), iShares 20+ Year Treasury Bond ETF ($12.61 billion), AppLovin Corporation ($9.14 billion), Palo Alto Networks, Inc. ($8.94 billion), SPDR S&P Biotech ETF ($8.68 billion), iShares iBoxx $ High Yield Corporate Bond ETF ($6.85 billion), Robinhood Markets, Inc. ($5.59 billion), and Strategy Inc ($5.49 billion). View all of the most shorted stocks.

What does it mean to sell short Surmodics stock?

Short selling SRDX is an investing strategy that aims to generate trading profit from Surmodics as its price is falling. SRDX shares are trading up $0.15 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 Surmodics?

A short squeeze for Surmodics 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 SRDX, which in turn drives the price of the stock up even further.

How often is Surmodics' 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 SRDX, twice per month. The most recent reporting period available is November, 14 2025.

What do SRDX's short interest metrics mean?

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

  • 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 (NASDAQ:SRDX) was last updated on 5/5/2026 by MarketBeat.com Staff.
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