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ProPhase Labs (PRPH) Short Interest Ratio & Short Volume

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$0.10 0.00 (0.00%)
As of 06/9/2026 01:30 PM Eastern
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ProPhase Labs Short Interest Overview

As of December 31, 2025, ProPhase Labs (PRPH) had a short interest of 289,006 shares sold short, representing 5.31% of the public float. This marks a -3.74% decrease in short interest since the prior report. The short interest ratio (days to cover) is 0.1, meaning it would take 0.1 days of the average trading volume of 253,187 shares to cover all short positions.

Current Short Interest
289,006 shares
Previous Short Interest
300,239 shares
Change Vs. Previous Month
-3.74%
Dollar Volume Sold Short
$129.33 thousand
Short Interest Ratio
0.1 Days to Cover
Last Record Date
December 31, 2025
Outstanding Shares
6,022,000 shares
Short Percent of Float
5.31%
Today's Trading Volume
2,657 shares
Average Trading Volume
253,187 shares
Today's Volume Vs. Average
1%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

PRPH Short Interest Over Time

PRPH Days to Cover Over Time

PRPH Percentage of Float Shorted Over Time

ProPhase Labs 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
12/31/2025289,006 shares $129.33 thousand -3.7%5.3%0.07 $0.45
12/15/2025300,239 shares $33.96 thousand +114.7%7.2%0.06 $0.11
11/28/2025139,873 shares $29.09 thousand +56.1%0.3%0.09 $0.21
11/14/202589,622 shares $25.09 thousand -63.6%0.2%0.08 $0.28
10/31/2025246,172 shares $89.53 thousand -79.2%0.7%0.17 $0.36
10/15/20251,180,000 shares $556.96 thousand +13.5%3.1%0.2 $0.47
9/30/20251,040,000 shares $476.11 thousand +18.4%N/A0.2 $0.46
9/15/2025878,400 shares $377.62 thousand -7.7%N/A0.1 $0.43
8/31/2025951,500 shares $321.70 thousand -62.7%2.5%0.1 $0.34
8/15/20252,550,000 shares $890.72 thousand +1,780.5%N/A0.4 $0.35
7/31/2025135,600 shares $48.78 thousand -6.3%0.4%0.1 $0.36
7/15/2025144,700 shares $60.20 thousand -86.9%N/A0.1 $0.42
6/30/20251,100,000 shares $430.43 thousand +604.7%2.9%0.4 $0.39
6/15/2025156,100 shares $51.72 thousand -51.7%0.5%0.1 $0.33
5/31/2025323,100 shares $122.42 thousand +40.1%1.7%0.2 $0.38
5/15/2025230,600 shares $91.04 thousand -49.6%1.2%0.1 $0.39
4/30/2025457,100 shares $159.07 thousand -64.3%N/A0 $0.35
4/15/20251,280,000 shares $368.51 thousand +7.6%6.8%0.1 $0.29
3/31/20251,190,000 shares $481.12 thousand +50.0%6.3%0.1 $0.40
3/15/2025793,400 shares $311.49 thousand -52.2%4.2%0.1 $0.39
2/28/20251,660,000 shares $745.01 thousand -62.4%8.8%0.2 $0.45
2/15/20254,420,000 shares $1.44 million +5,106.1%23.3%0.5 $0.33
1/31/202584,900 shares $22.35 thousand -27.1%N/A0.1 $0.26
1/15/2025116,400 shares $69.85 thousand +19.1%N/A0.4 $0.60
12/31/202497,700 shares $73.97 thousand -10.5%N/A0.4 $0.76
12/15/2024109,200 shares $71.09 thousand -24.6%N/A0.6 $0.65
11/30/2024144,900 shares $111.57 thousand -41.0%N/A1 $0.77
11/15/2024245,700 shares $184.28 thousand +59.4%N/A2.1 $0.75
10/31/2024154,100 shares $352.89 thousand -25.2%N/A1.9 $2.29
10/15/2024206,100 shares $471.97 thousand -10.8%N/A7.1 $2.29
9/30/2024231,000 shares $559.02 thousand -9.9%N/A7.7 $2.42
9/15/2024256,300 shares $627.94 thousand +3.0%N/A8.1 $2.45
8/31/2024248,900 shares $669.54 thousand -9.9%N/A8.4 $2.69
8/15/2024276,300 shares $624.44 thousand -13.3%N/A8.5 $2.26
7/31/2024318,500 shares $974.61 thousand +0.7%N/A9.4 $3.06
7/15/2024316,400 shares $1.02 million -1.8%N/A8.6 $3.22
6/30/2024322,300 shares $1.35 million +0.5%N/A5.4 $4.18
6/15/2024320,800 shares $1.47 million +2.1%N/A5.3 $4.59
5/31/2024314,200 shares $1.62 million +20.8%N/A5.2 $5.15
5/15/2024260,100 shares $1.34 million -1.9%N/A4.3 $5.14
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4/30/2024265,100 shares $1.22 million -3.5%1.9%5 $4.61
4/15/2024274,700 shares $1.69 million +6.8%2.0%5.5 $6.16
3/31/2024257,300 shares $1.66 million +3.7%1.8%9.6 $6.47
3/15/2024248,200 shares $1.25 million -16.9%1.8%9.5 $5.04
2/29/2024298,500 shares $1.33 million +0.7%2.1%11.2 $4.47
2/15/2024296,400 shares $1.47 million -0.2%2.1%12.1 $4.96
1/31/2024297,000 shares $1.44 million +4.7%2.1%11.2 $4.85
1/15/2024283,600 shares $1.39 million -7.3%2.0%10.9 $4.90
12/31/2023306,000 shares $1.38 million -5.1%2.2%12.2 $4.52
12/15/2023322,400 shares $1.45 million -20.2%2.3%13.1 $4.50
11/30/2023404,000 shares $2.05 million +45.5%2.9%15.2 $5.07
11/15/2023277,700 shares $1.21 million -5.3%2.0%8.8 $4.35
10/31/2023293,100 shares $1.29 million -1.9%2.3%7.9 $4.39
10/15/2023298,800 shares $1.31 million -3.9%2.3%7.7 $4.37
9/30/2023311,000 shares $1.36 million +0.2%2.4%7.5 $4.37
9/15/2023310,300 shares $1.41 million -13.8%2.4%7.1 $4.56
8/31/2023360,100 shares $1.54 million +0.5%2.8%7.1 $4.28
8/15/2023358,300 shares $2.04 million +0.3%2.8%6.3 $5.70
7/31/2023357,200 shares $2.60 million +8.9%2.7%5.9 $7.28
7/15/2023327,900 shares $2.33 million +1.1%2.5%4.5 $7.11
6/30/2023324,400 shares $2.36 million +1.8%2.5%4.3 $7.26
6/15/2023318,700 shares $2.38 million -8.1%2.4%4.1 $7.47
5/31/2023346,700 shares $3.29 million +2.5%2.6%4.7 $9.49
5/15/2023338,400 shares $2.72 million -4.1%2.6%5.6 $8.04
4/30/2023352,700 shares $2.65 million -7.9%2.7%6.8 $7.50
4/15/2023382,800 shares $3.12 million +23.5%2.9%8.5 $8.16
3/31/2023309,900 shares $2.36 million +17.9%2.4%6.6 $7.62
3/15/2023262,900 shares $2.12 million -10.0%2.2%5.2 $8.06
2/28/2023292,000 shares $2.13 million -3.3%2.4%5.9 $7.31
2/15/2023301,900 shares $2.42 million -6.0%2.5%5.6 $8.01
1/31/2023321,200 shares $2.63 million -8.7%2.6%4.9 $8.18
1/15/2023351,700 shares $3.29 million -5.8%2.8%5 $9.36
12/30/2022373,300 shares $3.59 million -9.6%2.9%4.8 $9.63
12/15/2022412,700 shares $4.20 million +10.1%3.2%5.1 $10.18
11/30/2022375,000 shares $3.89 million -11.9%3.0%4.3 $10.37
11/15/2022425,800 shares $5.03 million +16.2%3.4%4.5 $11.81
10/31/2022366,400 shares $4.42 million -21.1%2.9%3.5 $12.05
10/15/2022464,400 shares $4.83 million +13.9%3.7%4 $10.41
9/30/2022407,700 shares $4.60 million +28.9%3.2%2.7 $11.28
9/15/2022316,300 shares $3.38 million -4.2%2.5%1.8 $10.68
8/31/2022330,300 shares $4.00 million -9.8%2.6%1.8 $12.11
8/15/2022366,300 shares $4.47 million +31.6%3.0%1.9 $12.19
7/31/2022278,300 shares $2.88 million -2.7%3.3%1.7 $10.34
7/15/2022286,000 shares $4.00 million +22.8%3.4%1.9 $13.98
6/30/2022232,900 shares $2.95 million +61.4%2.8%2.2 $12.68
6/15/2022144,300 shares $1.53 million +65.3%1.7%2 $10.61
5/31/202287,300 shares $790.07 thousand -1.0%0.7%1.7 $9.05
5/15/202288,200 shares $620.05 thousand +2.3%0.7%2.7 $7.03
4/30/202286,200 shares $639.60 thousand +21.4%0.7%3.2 $7.42
4/15/202271,000 shares $590.01 thousand -31.2%0.6%2.8 $8.31
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3/31/2022103,200 shares $722.40 thousand +1.7%0.8%4.5 $7.00
3/15/2022101,500 shares $652.65 thousand -1.4%0.8%5 $6.43
2/28/2022102,900 shares $650.33 thousand +12.2%0.8%3.7 $6.32
2/15/202291,700 shares $633.65 thousand -19.8%0.7%2.6 $6.91
1/31/2022114,300 shares $827.53 thousand +13.5%0.9%3 $7.24
1/15/2022100,700 shares $735.11 thousand -20.1%0.8%2.4 $7.30
12/31/2021126,000 shares $903.42 thousand +17.4%1.0%2.5 $7.17
12/15/2021107,300 shares $743.59 thousand -29.8%0.8%2.1 $6.93
11/30/2021152,800 shares $959.58 thousand -10.2%1.2%2.9 $6.28
11/15/2021170,100 shares $1.02 million -10.1%1.3%3.6 $6.00
10/29/2021189,100 shares $1.11 million -9.6%1.5%2.8 $5.89
10/15/2021209,100 shares $1.19 million -13.3%1.7%2.3 $5.70
9/30/2021241,300 shares $1.25 million -7.0%1.9%2.3 $5.20
9/15/2021259,500 shares $1.28 million -14.1%2.1%1.5 $4.95
8/31/2021302,100 shares $1.62 million -5.6%2.4%0.9 $5.36
8/13/2021320,000 shares $2.07 million -17.6%2.6%0.9 $6.46
7/30/2021388,500 shares $2.78 million -7.0%3.1%1.1 $7.16
7/15/2021417,900 shares $2.57 million -9.0%3.4%1.3 $6.15
6/30/2021459,100 shares $2.85 million +42.2%3.7%1.3 $6.20
6/15/2021322,800 shares $1.90 million +69.6%2.6%0.8 $5.90

PRPH Short Interest - Frequently Asked Questions

Short interest is the volume of ProPhase Labs shares that have been sold short but have not yet been closed out or covered. As of December 31st, investors have sold 289,006 shares of PRPH short. 5.31% of ProPhase Labs' shares are currently sold short. Learn More on ProPhase Labs' 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. PRPH shares currently have a short interest ratio of 0.1. Learn More on ProPhase Labs'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. 5.31% of ProPhase Labs' floating shares are currently sold short.

ProPhase Labs saw a drop in short interest in the month of December. As of December 31st, there was short interest totaling 289,006 shares, a drop of 3.7% from the previous total of 300,239 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.

5.31% of ProPhase Labs' shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to ProPhase Labs: Shuttle Pharmaceuticals Holdings, Inc. (4.41%), Clearmind Medicine Inc. (3.97%), Trinity Biotech PLC (7.27%), CASI Pharmaceuticals Inc. (0.94%), Silexion Therapeutics Corp (38.94%), PMGC Holdings Inc. (51.81%), Jaguar Animal Health, Inc. (10.86%), Universe Pharmaceuticals INC (3.86%), Scinai Immunotherapeutics Ltd. Sponsored ADR (2.63%), IM Cannabis Corp. (1.65%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($68.76 billion), Invesco QQQ ($26.44 billion), iShares Russell 2000 ETF ($19.85 billion), iShares 20+ Year Treasury Bond ETF ($12.46 billion), AppLovin Corporation ($10.57 billion), SPDR S&P Biotech ETF ($9.48 billion), Palo Alto Networks, Inc. ($8.67 billion), Carvana Co. ($6.81 billion), Western Digital Corporation ($6.35 billion), and iShares MSCI Emerging Markets ETF ($6.03 billion). View all of the most shorted stocks.

Short selling PRPH is an investing strategy that aims to generate trading profit from ProPhase Labs as its price is falling. 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 ProPhase Labs 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 PRPH, 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 PRPH, twice per month. The most recent reporting period available is December, 31 2025.

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

  • 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:PRPH) was last updated on 6/10/2026 by MarketBeat.com Staff.
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