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Achieve Life Sciences (ACHV) Short Interest Ratio & Short Volume

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$8.10 -0.08 (-0.98%)
As of 08/28/2026 04:00 PM Eastern
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Achieve Life Sciences Short Interest Overview

As of August 14, 2026, Achieve Life Sciences (ACHV) had a short interest of 16.42 million shares sold short, representing 16.24% of the public float. This marks a 0.87% increase in short interest since the prior report. The short interest ratio (days to cover) is 12.8, meaning it would take 12.8 days of the average trading volume of 1.36 million shares to cover all short positions.

Current Short Interest
16,415,450 shares
Previous Short Interest
16,273,408 shares
Change Vs. Previous Month
0.87%
Dollar Volume Sold Short
$124.59 million
Short Interest Ratio
12.8 Days to Cover
Last Record Date
August 14, 2026
Outstanding Shares
102,900,000 shares
Short Percent of Float
16.24%
Today's Trading Volume
988,890 shares
Average Trading Volume
1,361,951 shares
Today's Volume Vs. Average
73%
Short Selling Achieve Life Sciences?
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

ACHV Short Interest Over Time

ACHV Days to Cover Over Time

ACHV Percentage of Float Shorted Over Time

Achieve Life Sciences 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
8/14/202616,415,450 shares $124.59 million +0.9%16.2%12.76 $7.59
7/31/202616,273,408 shares $104.48 million +10.5%16.1%15.04 $6.42
7/15/202614,730,069 shares $93.24 million +17.1%14.6%7.77 $6.33
6/30/202612,582,151 shares $82.16 million +52.9%12.5%3.32 $6.53
6/15/20268,230,908 shares $46.09 million +7.2%8.2%6.05 $5.60
5/29/20267,675,144 shares $40.22 million +5.9%7.7%5.45 $5.24
5/15/20267,244,501 shares $38.32 million +5.1%7.3%5.63 $5.29
4/30/20266,890,549 shares $30.25 million +0.7%13.3%2.66 $4.39
4/15/20266,845,606 shares $24.30 million -3.8%6.8%10.34 $3.55
3/31/20267,117,982 shares $20.93 million +1.5%7.1%6.79 $2.94
3/13/20267,012,431 shares $29.24 million +4.3%13.6%18.44 $4.17
2/27/20266,726,321 shares $30.67 million -0.5%6.7%23.37 $4.56
2/13/20266,762,071 shares $28.40 million -0.9%6.7%13.64 $4.20
1/30/20266,820,353 shares $28.51 million 0.0%13.2%6.67 $4.18
1/15/20266,821,824 shares $38.13 million +4.0%13.2%10.7 $5.59
12/31/20256,558,548 shares $32.60 million +8.2%12.7%11.02 $4.97
12/15/20256,062,041 shares $27.22 million -5.0%11.7%10.44 $4.49
11/28/20256,380,019 shares $31.23 million +1.0%12.4%10.25 $4.90
11/14/20256,315,019 shares $27.66 million +3.6%12.7%8.89 $4.38
10/31/20256,095,362 shares $31.21 million +28.7%12.3%1.72 $5.12
10/15/20254,740,000 shares $15.07 million +8.0%9.6%3.2 $3.18
9/30/20254,390,000 shares $13.83 million +8.4%N/A4 $3.15
9/15/20254,050,000 shares $12.31 million -21.8%N/A3 $3.04
8/31/20255,180,000 shares $15.44 million +30.2%10.4%4.1 $2.98
8/15/20253,980,000 shares $10.15 million +42.7%N/A3.7 $2.55
7/31/20252,790,000 shares $7.28 million +14.3%8.3%3.1 $2.61
7/15/20252,440,000 shares $6.44 million +11.9%N/A3 $2.64
6/30/20252,180,000 shares $4.93 million -26.6%6.5%3.7 $2.26
6/15/20252,970,000 shares $9.65 million +13.4%8.8%11.8 $3.25
5/31/20252,620,000 shares $9.14 million -0.8%7.8%11.2 $3.49
5/15/20252,640,000 shares $7.21 million +4.4%7.8%13.4 $2.73
4/30/20252,530,000 shares $6.58 million +1.2%N/A13.3 $2.60
4/15/20252,500,000 shares $5.40 million -12.9%7.4%11.9 $2.16
3/31/20252,870,000 shares $7.66 million -5.3%8.5%11.9 $2.67
3/15/20253,030,000 shares $8.36 million -3.8%9.0%12.8 $2.76
2/28/20253,150,000 shares $9.67 million -2.5%9.3%13.9 $3.07
2/15/20253,230,000 shares $11.05 million +11.4%9.6%14.8 $3.42
1/31/20252,900,000 shares $9.48 million -24.7%N/A13.2 $3.27
1/15/20253,850,000 shares $12.63 million +1.1%N/A20.6 $3.28
12/31/20243,810,000 shares $13.41 million +30.0%N/A24.8 $3.52
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11/15/20243,000,000 shares $12.75 million -9.6%N/A27.9 $4.25
10/31/20243,320,000 shares $15.54 million +1.2%N/A33.1 $4.68
10/15/20243,280,000 shares $16.42 million +3.8%N/A29.8 $5.01
9/30/20243,160,000 shares $14.98 million No ChangeN/A25.6 $4.74
9/15/20243,160,000 shares $14.31 million +4.6%N/A15.3 $4.53
8/31/20243,020,000 shares $13.26 million +1.3%N/A13.2 $4.39
8/15/20242,980,000 shares $13.26 million +9.6%N/A12.4 $4.45
7/31/20242,720,000 shares $13.55 million +12.9%N/A11 $4.98
7/15/20242,410,000 shares $11.93 million +58.6%N/A10.3 $4.95
6/30/20241,520,000 shares $7.14 million +35.7%N/A7 $4.70
6/15/20241,120,000 shares $5.49 million +17.9%N/A8.4 $4.90
5/31/2024949,700 shares $4.96 million +26.5%N/A8.2 $5.22
5/15/2024750,500 shares $3.91 million +2.6%N/A6.2 $5.21
4/30/2024731,700 shares $3.21 million +2.6%N/A7.2 $4.39
4/15/2024713,300 shares $3.17 million -0.6%N/A7.6 $4.45
3/31/2024717,500 shares $3.26 million +2.2%N/A7.6 $4.55
3/15/2024701,800 shares $3.22 million +9.1%N/A7.6 $4.59
2/29/2024643,200 shares $2.60 million -3.6%N/A5.8 $4.05
2/15/2024667,200 shares $2.98 million -0.7%N/A7.8 $4.47
1/31/2024671,900 shares $3.31 million +1.5%N/A7.7 $4.93
1/15/2024661,900 shares $2.84 million -1.5%N/A8.1 $4.29
12/31/2023671,800 shares $2.77 million -5.0%N/A8.5 $4.12
12/15/2023707,200 shares $2.25 million +3.0%N/A9 $3.18
11/30/2023686,600 shares $3.98 million 0.0%N/A18.2 $5.79
11/15/2023686,700 shares $3.34 million -1.4%N/A16.7 $4.86
10/31/2023696,400 shares $2.80 million +0.5%N/A16.8 $4.02
10/15/2023693,300 shares $2.58 million -1.7%N/A15.2 $3.72
9/30/2023705,300 shares $3.03 million +0.7%N/A14.3 $4.30
9/15/2023700,700 shares $3.25 million -2.6%N/A12.2 $4.64
8/31/2023719,200 shares $3.57 million -1.3%N/A10.5 $4.96
8/15/2023728,300 shares $3.78 million -2.6%N/A5.9 $5.19
7/31/2023748,000 shares $4.19 million -7.4%N/A5.3 $5.60
7/15/2023807,600 shares $4.30 million +0.6%N/A5 $5.32
6/30/2023803,100 shares $4.17 million -0.6%N/A4.7 $5.19
6/15/2023808,100 shares $4.77 million +1.2%N/A4.3 $5.90
5/31/2023798,300 shares $4.95 million +26.1%N/A4.3 $6.20
5/15/2023633,200 shares $4.96 million +11.2%N/A4.1 $7.84
4/30/2023569,600 shares $4.74 million +3.7%N/A4.5 $8.33
4/15/2023549,500 shares $3.98 million +0.6%N/A4.5 $7.25
3/31/2023546,400 shares $3.72 million -2.8%N/A4.4 $6.80
3/15/2023562,200 shares $2.56 million -2.0%N/A5.5 $4.56
2/28/2023573,900 shares $2.78 million -9.2%9.4%6.4 $4.85
2/15/2023632,100 shares $3.10 million +5.4%10.3%6.2 $4.90
1/31/2023599,700 shares $2.91 million -37.9%9.8%5.9 $4.86
1/15/2023966,400 shares $4.14 million +13.3%15.7%10.2 $4.28
12/30/2022852,900 shares $2.09 million +12.0%13.9%11.2 $2.45
12/15/2022761,800 shares $1.90 million +2.3%12.4%11.6 $2.50
11/30/2022744,800 shares $2.09 million +122.9%12.1%12.3 $2.80
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11/15/2022334,100 shares $775.11 thousand +11.7%5.4%5.5 $2.32
10/31/2022299,200 shares $661.23 thousand -3.1%N/A6.3 $2.21
10/15/2022308,900 shares $837.12 thousand -1.3%N/A6.8 $2.71
9/30/2022313,000 shares $1.03 million -5.0%N/A7.5 $3.30
9/15/2022329,300 shares $1.50 million +0.0%N/A7.6 $4.56
8/31/2022329,200 shares $1.50 million +3.8%N/A7.5 $4.56
8/15/2022317,300 shares $1.79 million +3.1%N/A7.3 $5.64
7/31/2022307,800 shares $1.55 million -3.0%N/A10.1 $5.05
7/15/2022317,200 shares $1.68 million -4.4%N/A4 $5.31
6/30/2022331,800 shares $1.62 million -6.1%N/A4 $4.88
6/15/2022353,500 shares $2.13 million -2.8%N/A4.2 $6.03
5/31/2022363,600 shares $2.51 million -4.3%N/A4.2 $6.90
5/15/2022379,900 shares $2.52 million -11.0%N/A4.4 $6.64
4/30/2022426,700 shares $2.96 million +36.7%N/A5 $6.93
4/15/2022312,200 shares $2.39 million -3.1%N/A7.8 $7.64
3/31/2022322,100 shares $2.44 million -5.0%N/A8.2 $7.57
3/15/2022338,900 shares $2.15 million -6.7%N/A7.7 $6.35
2/28/2022363,400 shares $2.69 million -6.8%N/A7.5 $7.40
2/15/2022389,700 shares $2.99 million -5.7%N/A7.9 $7.66
1/31/2022413,400 shares $3.02 million -2.5%N/A7.5 $7.30
1/15/2022423,800 shares $3.55 million +5.7%N/A7.4 $8.37
12/31/2021401,000 shares $3.12 million -2.7%N/A6.9 $7.78
12/15/2021412,100 shares $2.93 million +2.2%N/A5.8 $7.10
11/30/2021403,400 shares $2.90 million -8.6%N/A5.5 $7.20
11/15/2021441,300 shares $3.57 million +2.5%N/A5.4 $8.10
10/29/2021430,400 shares $3.57 million -6.3%N/A3.7 $8.29
10/15/2021459,300 shares $3.70 million -8.5%N/A3.9 $8.05
9/30/2021502,000 shares $4.27 million +1.1%N/A3.5 $8.50
9/15/2021496,400 shares $4.04 million -3.1%N/A2.6 $8.13
8/31/2021512,200 shares $4.28 million -5.3%N/A2.3 $8.35

ACHV Short Interest - Frequently Asked Questions

Short interest is the volume of Achieve Life Sciences shares that have been sold short but have not yet been closed out or covered. As of August 14th, traders have sold 16,415,450 shares of ACHV short. 16.24% of Achieve Life Sciences' shares are currently sold short. Learn More on Achieve Life Sciences' 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. ACHV shares currently have a short interest ratio of 12.8. Learn More on Achieve Life Sciences'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. 16.24% of Achieve Life Sciences' floating shares are currently sold short.

Achieve Life Sciences saw a increase in short interest in the month of August. As of August 14th, there was short interest totaling 16,415,450 shares, an increase of 0.9% from the previous total of 16,273,408 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.

16.24% of Achieve Life Sciences' shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceuticals" compare to Achieve Life Sciences: MBX Biosciences, Inc. (14.92%), Tarsus Pharmaceuticals, Inc. (15.12%), Arcutis Biotherapeutics, Inc. (12.92%), Atai Beckley N.V. (5.67%), Regencell Bioscience Holdings Limited (0.20%), Supernus Pharmaceuticals, Inc. (7.80%), Trevi Therapeutics, Inc. (10.50%), Bausch Health Cos Inc. (2.84%), Prestige Consumer Healthcare Inc. (9.15%), Ocular Therapeutix, Inc. (13.40%),

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 ACHV is an investing strategy that aims to generate trading profit from Achieve Life Sciences as its price is falling. ACHV shares are trading down $0.08 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 Achieve Life Sciences 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 ACHV, 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 ACHV, 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 ACHV:

  • 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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Short Interest Tools

Short interest data for NASDAQ:ACHV 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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