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PureTech Health (PRTC) Short Interest Ratio & Short Volume

PureTech Health logo
$17.58 +0.07 (+0.38%)
As of 01:56 PM Eastern
This is a fair market value price provided by Massive. Learn more.
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PureTech Health Short Interest Overview

As of April 30, 2026, PureTech Health (PRTC) had a short interest of 24,521 shares sold short, representing 0.11% of the public float. This marks a 59.74% increase in short interest since the prior report. The short interest ratio (days to cover) is 3.6, meaning it would take 3.6 days of the average trading volume of 7,254 shares to cover all short positions.

Current Short Interest
24,521 shares
Previous Short Interest
15,351 shares
Change Vs. Previous Month
59.74%
Dollar Volume Sold Short
$422.99 thousand
Short Interest Ratio
3.6 Days to Cover
Last Record Date
April 30, 2026
Outstanding Shares
24,340,000 shares
Short Percent of Float
0.11%
Today's Trading Volume
3,276 shares
Average Trading Volume
7,254 shares
Today's Volume Vs. Average
45%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

PRTC Short Interest Over Time

PRTC Days to Cover Over Time

PRTC Percentage of Float Shorted Over Time

PureTech Health 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
4/30/202624,521 shares $422.99 thousand +59.7%0.1%3.58 $17.25
4/15/202615,351 shares $279.77 thousand +3.6%0.1%3.42 $18.23
3/31/202614,823 shares $220.27 thousand +30.8%0.1%4.56 $14.86
3/13/202611,335 shares $189.62 thousand +140.8%0.0%1.96 $16.73
2/27/20264,707 shares $78.94 thousand -10.5%0.0%2.26 $16.77
2/13/20265,259 shares $93.77 thousand +36.2%0.0%2.79 $17.83
1/30/20263,860 shares $71.74 thousand -18.8%0.0%1.19 $18.59
1/15/20264,752 shares $91.10 thousand -5.4%0.0%1.64 $19.17
12/31/20255,022 shares $85.95 thousand -10.8%0.0%7.06 $17.12
12/15/20255,627 shares $93.18 thousand -2.8%0.0%3.36 $16.56
11/28/20255,791 shares $97.26 thousand -17.1%0.0%2.08 $16.80
11/14/20256,984 shares $114.47 thousand -0.5%0.0%1.03 $16.39
10/31/20257,022 shares $123.06 thousand -35.6%0.0%3.7 $17.53
10/15/202510,900 shares $196.20 thousand -16.2%0.0%2.7 $18.00
9/30/202513,000 shares $238.82 thousand +100.0%N/A3.3 $18.37
9/15/20256,500 shares $100.04 thousand +6.6%N/A1.3 $15.39
8/31/20256,100 shares $104.13 thousand +24.5%0.0%1.5 $17.07
8/15/20254,900 shares $92.32 thousand +53.1%N/A1.4 $18.84
7/31/20253,200 shares $60 thousand -39.6%0.0%0.9 $18.75
7/15/20255,300 shares $93.57 thousand +39.5%N/A1.5 $17.66
6/30/20253,800 shares $65.55 thousand -26.9%0.0%0.6 $17.25
6/15/20255,200 shares $101.97 thousand -37.4%0.0%1 $19.61
5/31/20258,300 shares $153.63 thousand +2.5%0.0%1.6 $18.51
5/15/20258,100 shares $133.08 thousand -22.1%0.0%1.6 $16.43
4/30/202510,400 shares $179.50 thousand -4.6%N/A2.2 $17.26
4/15/202510,900 shares $183.45 thousand +12.4%0.0%2.3 $16.83
3/31/20259,700 shares $191.87 thousand -61.5%0.0%2.2 $19.78
3/15/202525,200 shares $440.87 thousand +12.5%0.1%10.5 $17.50
2/28/202522,400 shares $415.74 thousand -4.3%0.1%7 $18.56
2/15/202523,400 shares $443.43 thousand +4.5%0.1%6.5 $18.95
1/31/202522,400 shares $427.88 thousand -8.9%N/A5.1 $19.10
1/15/202524,600 shares $445.01 thousand -31.5%N/A5.3 $18.09
12/31/202435,900 shares $662.71 thousand +77.7%N/A8 $18.46
12/15/202420,200 shares $411.07 thousand -1.9%N/A3.6 $20.35
11/30/202420,600 shares $457.53 thousand +106.0%N/A3.4 $22.21
11/15/202410,000 shares $228.20 thousand +58.7%N/A1.7 $22.82
10/31/20246,300 shares $128.21 thousand +18.9%N/A1.2 $20.35
10/15/20245,300 shares $108.01 thousand -24.3%N/A1.1 $20.38
9/30/20247,000 shares $144.27 thousand -28.6%N/A1.6 $20.61
9/15/20249,800 shares $192.28 thousand +139.0%N/A2.6 $19.62
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8/31/20244,100 shares $94.30 thousand -2.4%N/A1.5 $23.00
8/15/20244,200 shares $92.82 thousand -2.3%N/A2.6 $22.10
7/31/20244,300 shares $98.86 thousand +7.5%N/A2.7 $22.99
7/15/20244,000 shares $90.60 thousand -13.0%N/A2.9 $22.65
6/30/20244,600 shares $115 thousand -4.2%N/A3.3 $25.00
6/15/20244,800 shares $143.04 thousand No ChangeN/A3 $29.80
5/31/20244,800 shares $150.24 thousand -11.1%N/A3 $31.30
5/15/20245,400 shares $153.95 thousand +1.9%N/A2.3 $28.51
4/30/20245,300 shares $147.81 thousand +3.9%N/A2 $27.89
4/15/20245,100 shares $129.95 thousand +4.1%N/A1.6 $25.48
3/31/20244,900 shares $139.65 thousand +16.7%N/A1.3 $28.50
3/15/20244,200 shares $103.61 thousand -2.3%N/A1.1 $24.67
2/29/20244,300 shares $108.36 thousand +4.9%N/A1.2 $25.20
2/15/20244,100 shares $95.53 thousand +485.7%N/A1.1 $23.30
1/31/2024700 shares $17.61 thousand -22.2%N/A0.2 $25.15
1/15/2024900 shares $21.92 thousand +80.0%N/A0.2 $24.35
12/31/2023500 shares $14.09 thousand +400.0%N/A0.2 $28.18
12/15/2023100 shares $1.75 thousand -75.0%N/A0 $17.52
11/30/2023400 shares $7.98 thousand +100.0%N/A0.1 $19.95
11/15/2023200 shares $4.20 thousand No ChangeN/A0.1 $21.02
10/31/2023200 shares $3.60 thousand +100.0%N/A0.1 $18.00
10/15/2023100 shares $2.21 thousand No ChangeN/A0.1 $22.05
9/30/2023100 shares $2.30 thousand No ChangeN/A0.1 $23.00
9/15/2023100 shares $2.90 thousand No ChangeN/A0.3 $29.00
8/31/2023100 shares $2.39 thousand No ChangeN/A0.2 $23.90
8/15/2023100 shares $2.52 thousand -93.8%N/A0.3 $25.16
7/31/20231,600 shares $45.76 thousand +1,500.0%N/A4 $28.60
7/15/2023100 shares $2.85 thousand -50.0%N/A0.3 $28.45
6/30/2023200 shares $5.96 thousand +100.0%N/A0.7 $29.80
6/15/2023100 shares $2.85 thousand -50.0%N/A0.2 $28.48
5/31/2023200 shares $5.50 thousand -50.0%N/A0.3 $27.50
5/15/2023400 shares $10.40 thousand -71.4%N/A0.7 $26.00
4/30/20231,400 shares $36.05 thousand No ChangeN/A2 $25.75
4/15/20231,400 shares $38.50 thousand -17.7%N/A1.6 $27.50
3/31/20231,700 shares $49.28 thousand +112.5%N/A1.7 $28.99
3/15/2023800 shares $22.72 thousand +100.0%N/A1 $28.40
2/28/2023400 shares $11.60 thousand -20.0%N/A0.4 $28.99
2/15/2023500 shares $15.59 thousand +66.7%N/A0.4 $31.17
1/31/2023300 shares $9.54 thousand -25.0%N/A0.2 $31.80
1/15/2023400 shares $11.79 thousand +100.0%N/A0.2 $29.49
12/30/2022200 shares $6.38 thousand -50.0%N/A0.1 $31.90
12/15/2022400 shares $14.45 thousand -63.6%N/A0.1 $36.12
11/30/20221,100 shares $38.50 thousand +450.0%N/A0.4 $35.00
11/15/2022200 shares $5.47 thousand -66.7%N/A0.1 $27.37
10/31/2022600 shares $16.81 thousand +100.0%N/A0.2 $28.02
10/15/2022300 shares $7.23 thousand No ChangeN/A0.1 $24.09
9/30/2022300 shares $8.10 thousand -40.0%N/A0.1 $27.00
9/15/2022500 shares $14.70 thousand No ChangeN/A0.1 $29.39
8/31/2022500 shares $14.50 thousand -89.4%N/A0.1 $29.00
8/15/20224,700 shares $143.21 thousand +30.6%N/A1.1 $30.47
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7/31/20223,600 shares $88.70 thousand +89.5%N/A0.6 $24.64
7/15/20221,900 shares $44.25 thousand -32.1%N/A0.3 $23.29
6/30/20222,800 shares $58.83 thousand +40.0%N/A0.5 $21.01
6/15/20222,000 shares $39.29 thousand -23.1%N/A0.3 $19.65
5/31/20222,600 shares $58.63 thousand -76.6%N/A0.4 $22.55
5/15/202211,100 shares $235.32 thousand +516.7%N/A1.9 $21.20
4/30/20221,800 shares $37.08 thousand +50.0%N/A0.5 $20.60
4/15/20221,200 shares $32.10 thousand +300.0%N/A0.4 $26.75
3/31/2022300 shares $7.58 thousand -81.3%N/A0.1 $25.26
3/15/20221,600 shares $43.10 thousand No ChangeN/A0.5 $26.94
2/28/20221,600 shares $47.52 thousand +433.3%N/A0.6 $29.70
2/15/2022300 shares $11.55 thousand -70.0%N/A0.1 $38.50
1/31/20221,000 shares $37.01 thousand -16.7%N/A0.3 $37.01
1/15/20221,200 shares $45.78 thousand -95.1%N/A0.4 $38.15
12/31/202124,600 shares $910.20 thousand +6,050.0%N/A7.9 $37.00
12/15/2021400 shares $14.40 thousand -33.3%N/A0.2 $36.00
11/30/2021600 shares $26.14 thousand No ChangeN/A0.2 $43.57
11/15/2021600 shares $26.40 thousand +50.0%N/A0.2 $44.00
10/29/2021400 shares $19.47 thousand -20.0%N/A0.1 $48.67
10/15/2021500 shares $25.79 thousand -93.6%N/A0.1 $51.58
9/30/20217,800 shares $374.32 thousand +7,700.0%N/A2.5 $47.99
9/15/2021100 shares $4.95 thousand -92.9%N/A0 $49.50
8/31/20211,400 shares $70 thousand -75.4%N/A0.9 $50.00
8/13/20215,700 shares $253.54 thousand -38.0%N/A8.1 $44.48
7/30/20219,200 shares $438.75 thousand +1.1%N/A23 $47.69
7/15/20219,100 shares $393.12 thousand +19.7%N/A22.8 $43.20
6/30/20217,600 shares $372.40 thousand No ChangeN/A25.3 $49.00
6/15/20217,600 shares $438.98 thousand +230.4%N/A19 $57.76
5/28/20212,300 shares $128.48 thousand +21.1%N/A5.8 $55.86
5/14/20211,900 shares $98.90 thousand +46.2%N/A9.5 $52.05

PRTC Short Interest - Frequently Asked Questions

Short interest is the volume of PureTech Health shares that have been sold short but have not yet been closed out or covered. As of April 30th, investors have sold 24,521 shares of PRTC short. 0.11% of PureTech Health's shares are currently sold short. Learn More on PureTech Health'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. PRTC shares currently have a short interest ratio of 3.6. Learn More on PureTech Health'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. 0.11% of PureTech Health's floating shares are currently sold short.

PureTech Health saw a increase in short interest in the month of April. As of April 30th, there was short interest totaling 24,521 shares, an increase of 59.7% from the previous total of 15,351 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.

0.11% of PureTech Health's shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to PureTech Health: Monte Rosa Therapeutics, Inc. (19.15%), Vir Biotechnology, Inc. (11.38%), Agios Pharmaceuticals, Inc. (12.40%), Oculis Holding AG (0.77%), Damora Therapeutics, Inc. Common Stock (1.98%), Atai Beckley N.V. (8.50%), Nuvation Bio Inc. (20.80%), Biohaven Ltd. (19.16%), Nanobiotix S.A. - Sponsored ADR (0.08%), Harrow, Inc. (19.93%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($86.09 billion), Invesco QQQ ($39.89 billion), iShares Russell 2000 ETF ($26.13 billion), Western Digital Corporation ($12.66 billion), Salesforce Inc. ($12.29 billion), Sandisk Corporation ($11.87 billion), SPDR S&P Biotech ETF ($9.82 billion), Lumentum Holdings Inc. ($8.51 billion), iShares 20+ Year Treasury Bond ETF ($7.76 billion), and Bloom Energy Corporation ($7.40 billion). View all of the most shorted stocks.

Short selling PRTC is an investing strategy that aims to generate trading profit from PureTech Health as its price is falling. PRTC shares are trading up $0.20 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 PureTech Health 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 PRTC, 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 PRTC, twice per month. The most recent reporting period available is April, 30 2026.

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

  • 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:PRTC) was last updated on 5/14/2026 by MarketBeat.com Staff.
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