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Adaptive Biotechnologies (ADPT) Short Interest Ratio & Short Volume

Adaptive Biotechnologies logo
$17.60 -1.13 (-6.03%)
Closing price 06/12/2026 04:00 PM Eastern
Extended Trading
$17.74 +0.14 (+0.80%)
As of 06/12/2026 07:59 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Adaptive Biotechnologies Short Interest Overview

As of May 29, 2026, Adaptive Biotechnologies (ADPT) had a short interest of 8.24 million shares sold short, representing 5.46% of the public float. This marks a -7.38% decrease in short interest since the prior report. The short interest ratio (days to cover) is 5.1, meaning it would take 5.1 days of the average trading volume of 2.10 million shares to cover all short positions.

Current Short Interest
8,240,744 shares
Previous Short Interest
8,897,341 shares
Change Vs. Previous Month
-7.38%
Dollar Volume Sold Short
$124.85 million
Short Interest Ratio
5.1 Days to Cover
Last Record Date
May 29, 2026
Outstanding Shares
160,040,000 shares
Short Percent of Float
5.46%
Today's Trading Volume
2,978,776 shares
Average Trading Volume
2,101,648 shares
Today's Volume Vs. Average
142%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

ADPT Short Interest Over Time

ADPT Days to Cover Over Time

ADPT Percentage of Float Shorted Over Time

Adaptive Biotechnologies 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
5/29/20268,240,744 shares $124.85 million -7.4%5.5%5.13 $15.15
5/15/20268,897,341 shares $114.15 million +5.4%5.9%4.55 $12.83
4/30/20268,439,712 shares $119.00 million -1.3%5.6%6.94 $14.10
4/15/20268,551,420 shares $124.25 million -0.1%5.9%4.41 $14.53
3/31/20268,558,955 shares $118.80 million -7.4%5.9%4.06 $13.88
3/13/20269,247,322 shares $121.79 million +4.2%6.4%3.65 $13.17
2/27/20268,877,604 shares $142.22 million -3.4%6.2%6.51 $16.02
2/13/20269,193,089 shares $147.46 million +1.8%6.4%4.27 $16.04
1/30/20269,033,105 shares $167.11 million +0.1%6.3%5.56 $18.50
1/15/20269,021,329 shares $160.40 million +3.0%6.3%4.01 $17.78
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12/31/20258,760,209 shares $142.27 million -10.1%6.1%4.43 $16.24
12/15/20259,742,510 shares $152.86 million -6.4%6.8%2.94 $15.69
11/28/202510,403,303 shares $163.23 million +0.3%7.3%3.75 $15.69
11/14/202510,368,382 shares $146.19 million +15.1%7.3%4.98 $14.10
10/31/20259,010,315 shares $156.42 million -0.2%6.3%5.84 $17.36
10/15/20259,030,000 shares $154.50 million -5.8%6.3%4.6 $17.11
9/30/20259,590,000 shares $143.47 million +2.7%N/A4.8 $14.96
9/15/20259,340,000 shares $122.17 million +10.8%N/A4.4 $13.08
8/31/20258,430,000 shares $111.11 million -5.8%5.9%4.1 $13.18
8/15/20258,950,000 shares $116.71 million -9.9%N/A4.5 $13.04
7/31/20259,930,000 shares $101.68 million +2.5%7.0%5.3 $10.24
7/15/20259,690,000 shares $107.17 million -4.3%N/A4.5 $11.06
6/30/202510,130,000 shares $118.01 million +13.4%7.1%4.5 $11.65
6/15/20258,930,000 shares $92.16 million -7.4%6.3%4.2 $10.32
5/31/20259,640,000 shares $91.77 million +5.9%7.0%4.4 $9.52
5/15/20259,100,000 shares $81.08 million -0.4%6.6%4 $8.91
4/30/20259,140,000 shares $67.27 million -7.6%N/A3.8 $7.36
4/15/20259,890,000 shares $76.55 million -2.3%7.1%5.1 $7.74
3/31/202510,120,000 shares $75.19 million +6.6%7.3%5.2 $7.43
3/15/20259,490,000 shares $69.09 million +9.6%6.9%5.8 $7.28
2/28/20258,660,000 shares $71.53 million -1.4%6.3%5.8 $8.26
2/15/20258,780,000 shares $73.14 million +2.9%6.3%6 $8.33
1/31/20258,530,000 shares $66.11 million -1.5%N/A6.1 $7.75
1/15/20258,660,000 shares $62.01 million -5.8%N/A6.5 $7.16
12/31/20249,190,000 shares $55.05 million +1.8%N/A7.7 $5.99
12/15/20249,030,000 shares $56.89 million -5.7%N/A7.3 $6.30
11/30/20249,580,000 shares $56.91 million +16.8%N/A8.1 $5.94
11/15/20248,200,000 shares $41.66 million -8.5%N/A7.2 $5.08
10/31/20248,960,000 shares $43.37 million -5.5%N/A8.5 $4.84
10/15/20249,480,000 shares $47.12 million -4.3%N/A8.2 $4.97
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9/30/20249,910,000 shares $50.74 million +2.9%N/A8.1 $5.12
9/15/20249,630,000 shares $44.39 million -0.8%N/A7.6 $4.61
8/31/20249,710,000 shares $45.64 million +0.5%N/A7.4 $4.70
8/15/20249,660,000 shares $47.62 million -11.8%N/A6.6 $4.93
7/31/202410,950,000 shares $49.82 million -8.1%N/A7.3 $4.55
7/15/202411,910,000 shares $48.00 million -1.9%N/A7.9 $4.03
6/30/202412,140,000 shares $43.95 million -7.0%N/A7.4 $3.62
6/15/202413,050,000 shares $40.85 million -2.5%N/A7.6 $3.13
5/31/202413,380,000 shares $46.16 million +1.8%N/A7.8 $3.45
5/15/202413,140,000 shares $51.25 million +9.1%N/A7.9 $3.90
4/30/202412,040,000 shares $31.54 million +20.3%N/A7 $2.62
4/15/202410,010,000 shares $29.13 million +10.0%7.2%6 $2.91
3/31/20249,100,000 shares $29.21 million +7.6%6.6%6.1 $3.21
3/15/20248,460,000 shares $27.41 million -3.5%6.1%5.9 $3.24
2/29/20248,770,000 shares $36.04 million -4.6%N/A5.9 $4.11
2/15/20249,190,000 shares $36.39 million +4.3%N/A6.6 $3.96
1/31/20248,810,000 shares $32.33 million +0.6%N/A5.9 $3.67
1/15/20248,760,000 shares $38.54 million -7.4%N/A5.6 $4.40
12/31/20239,460,000 shares $46.35 million -1.3%N/A6.3 $4.90
12/15/20239,580,000 shares $46.65 million -8.7%N/A6 $4.87
11/30/202310,490,000 shares $45.95 million -6.6%N/A6.8 $4.38
11/15/202311,230,000 shares $48.06 million +4.6%N/A7.3 $4.28
10/31/202310,740,000 shares $47.69 million +8.5%N/A7.7 $4.44
10/15/20239,900,000 shares $42.42 million -6.9%N/A7.4 $4.29
9/30/202310,630,000 shares $57.93 million +7.6%N/A8.1 $5.45
9/15/20239,880,000 shares $59.87 million -5.1%N/A8.4 $6.06
8/31/202310,410,000 shares $70.48 million +3.5%N/A9.1 $6.77
8/15/202310,060,000 shares $63.28 million +5.3%N/A8.7 $6.29
7/31/20239,550,000 shares $80.60 million +6.4%N/A8.8 $8.44
7/15/20238,980,000 shares $64.39 million +12.1%N/A8.9 $7.17
6/30/20238,010,000 shares $53.75 million -0.9%5.8%7.9 $6.71
6/15/20238,080,000 shares $70.05 million +10.4%5.8%8.2 $8.67
5/31/20237,320,000 shares $50.95 million +10.4%5.3%8.2 $6.96
5/15/20236,630,000 shares $43.03 million +8.9%4.8%7.7 $6.49
4/30/20236,090,000 shares $43.48 million +12.2%4.4%6.7 $7.14
4/15/20235,430,000 shares $42.95 million -11.3%3.9%5.9 $7.91
3/31/20236,120,000 shares $54.04 million +14.8%4.4%6.4 $8.83
3/15/20235,330,000 shares $43.81 million +9.5%3.9%5.3 $8.22
2/28/20234,870,000 shares $41.64 million +9.4%3.5%4.9 $8.55
2/15/20234,450,000 shares $44.63 million -6.3%3.2%4.4 $10.03
1/31/20234,750,000 shares $44.03 million -12.4%3.4%4.7 $9.27
1/15/20235,420,000 shares $53.87 million -8.3%3.9%5.2 $9.94
12/30/20225,910,000 shares $45.15 million +25.0%4.2%5.8 $7.64
12/15/20224,730,000 shares $38.45 million -11.1%3.4%4.7 $8.13
11/30/20225,320,000 shares $46.71 million +3.3%3.8%5.2 $8.78
11/15/20225,150,000 shares $46.81 million -13.9%3.7%4.9 $9.09
10/31/20225,980,000 shares $46.52 million -2.3%4.3%5.4 $7.78
10/15/20226,120,000 shares $38.31 million -5.1%4.4%5.4 $6.26
9/30/20226,450,000 shares $45.92 million +3.4%4.6%5.7 $7.12
9/15/20226,240,000 shares $52.67 million -9.4%4.5%4.4 $8.44
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8/31/20226,890,000 shares $61.46 million +6.0%4.9%4.4 $8.92
8/15/20226,500,000 shares $82.36 million +1.3%4.7%3.9 $12.67
7/31/20226,420,000 shares $58.81 million -7.6%4.6%3.7 $9.16
7/15/20226,950,000 shares $66.23 million -7.6%5.0%3.9 $9.53
6/30/20227,520,000 shares $60.84 million +2.7%5.4%4.1 $8.09
6/15/20227,320,000 shares $52.34 million +15.5%5.3%4.2 $7.15
5/31/20226,340,000 shares $49.58 million -8.3%4.6%4.4 $7.82
5/15/20226,910,000 shares $56.94 million +32.4%5.0%4.8 $8.24
4/30/20225,220,000 shares $43.07 million -1.9%3.8%3.8 $8.25
4/15/20225,320,000 shares $57.56 million +11.5%3.8%4.1 $10.82
3/31/20224,770,000 shares $66.21 million -12.0%N/A3.8 $13.88
3/15/20225,420,000 shares $58.27 million -0.4%N/A4.5 $10.75
2/28/20225,440,000 shares $78.50 million -5.2%3.9%4.9 $14.43
2/15/20225,740,000 shares $84.32 million +10.0%4.1%5.1 $14.69
1/31/20225,220,000 shares $91.04 million +20.3%3.8%5.3 $17.44
1/15/20224,340,000 shares $83.98 million +14.2%3.1%5 $19.35
12/31/20213,800,000 shares $106.63 million -6.6%2.7%5.1 $28.06
12/15/20214,070,000 shares $111.03 million +8.8%2.9%5.9 $27.28
11/30/20213,740,000 shares $97.58 million -0.8%2.7%5.7 $26.09
11/15/20213,770,000 shares $122.83 million -10.9%2.7%6.3 $32.58
10/29/20214,230,000 shares $141.32 million -0.9%3.0%7.7 $33.41
10/15/20214,270,000 shares $143.05 million -3.2%3.1%8 $33.50
9/30/20214,410,000 shares $149.90 million +4.8%3.2%7.9 $33.99
9/15/20214,210,000 shares $154.13 million +5.3%3.0%7.1 $36.61
8/31/20214,000,000 shares $145.28 million -8.5%2.9%6.8 $36.32
8/13/20214,370,000 shares $138.97 million -8.0%3.2%7.1 $31.80
7/30/20214,750,000 shares $174.14 million +3.9%3.4%6.5 $36.66
7/15/20214,570,000 shares $161.00 million -2.1%3.3%5.8 $35.23
6/30/20214,670,000 shares $190.82 million +11.7%3.4%5.6 $40.86
6/15/20214,180,000 shares $160.43 million -4.1%3.0%4.7 $38.38

ADPT Short Interest - Frequently Asked Questions

Short interest is the volume of Adaptive Biotechnologies shares that have been sold short but have not yet been covered or closed out. As of May 29th, traders have sold 8,240,744 shares of ADPT short. 5.46% of Adaptive Biotechnologies' shares are currently sold short. Learn More on Adaptive Biotechnologies' 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. ADPT shares currently have a short interest ratio of 5.1. Learn More on Adaptive Biotechnologies'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. 5.46% of Adaptive Biotechnologies' floating shares are currently sold short.

Adaptive Biotechnologies saw a decline in short interest in the month of May. As of May 29th, there was short interest totaling 8,240,744 shares, a decline of 7.4% from the previous total of 8,897,341 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.

5.46% of Adaptive Biotechnologies' shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Adaptive Biotechnologies: Arrowhead Pharmaceuticals, Inc. (9.13%), Regencell Bioscience Holdings Limited (0.16%), Cytokinetics, Incorporated (12.79%), Krystal Biotech, Inc. (12.29%), Abivax SA Sponsored ADR (3.83%), Qiagen N.V. (3.07%), ImmunityBio, Inc. (41.34%), Nuvalent, Inc. (6.99%), Praxis Precision Medicines, Inc. (13.46%), Vaxcyte, Inc. (10.37%),

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 ADPT is an investing strategy that aims to generate trading profit from Adaptive Biotechnologies as its price is falling. ADPT shares are trading down $1.13 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 Adaptive Biotechnologies 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 ADPT, 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 ADPT, 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 ADPT:

  • 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:ADPT) was last updated on 6/14/2026 by MarketBeat.com Staff.
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