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Arcturus Therapeutics (ARCT) Short Interest Ratio & Short Volume

Arcturus Therapeutics logo
$9.22 +0.32 (+3.60%)
Closing price 05/8/2026 04:00 PM Eastern
Extended Trading
$9.14 -0.09 (-0.92%)
As of 05/8/2026 07:27 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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Arcturus Therapeutics Short Interest Overview

As of April 15, 2026, Arcturus Therapeutics (ARCT) had a short interest of 6.25 million shares sold short, representing 26.37% of the public float. This marks a -3.08% decrease in short interest since the prior report. The short interest ratio (days to cover) is 14.3, meaning it would take 14.3 days of the average trading volume of 341,200 shares to cover all short positions.

Current Short Interest
6,251,989 shares
Previous Short Interest
6,450,517 shares
Change Vs. Previous Month
-3.08%
Dollar Volume Sold Short
$53.89 million
Short Interest Ratio
14.3 Days to Cover
Last Record Date
April 15, 2026
Outstanding Shares
28,420,000 shares
Short Percent of Float
26.37%
Today's Trading Volume
933,138 shares
Average Trading Volume
341,200 shares
Today's Volume Vs. Average
273%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

ARCT Short Interest Over Time

ARCT Days to Cover Over Time

ARCT Percentage of Float Shorted Over Time

Arcturus Therapeutics 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
4/15/20266,251,989 shares $53.89 million -3.1%26.4%14.33 $8.62
3/31/20266,450,517 shares $49.80 million +8.6%27.2%11.05 $7.72
3/13/20265,938,449 shares $39.67 million -2.4%24.7%10.8 $6.68
2/27/20266,081,175 shares $50.05 million -7.5%25.3%17.51 $8.23
2/13/20266,574,077 shares $47.40 million -4.5%27.3%14.91 $7.21
1/30/20266,882,188 shares $51.41 million -4.3%28.6%16.27 $7.47
1/15/20267,188,672 shares $54.71 million +0.4%29.9%12.59 $7.61
12/31/20257,159,495 shares $43.89 million -7.1%29.7%11.5 $6.13
12/15/20257,706,521 shares $55.87 million -1.3%32.0%9.84 $7.25
11/28/20257,810,428 shares $52.99 million -15.2%32.5%8.25 $6.79
11/14/20259,210,027 shares $66.96 million +32.6%38.3%9.14 $7.27
10/31/20256,948,548 shares $69.28 million +30.9%30.2%2.32 $9.97
10/15/20255,310,000 shares $114.54 million +3.3%21.4%4.9 $21.57
9/30/20255,140,000 shares $94.73 million -13.6%20.7%7.8 $18.43
9/15/20255,950,000 shares $107.87 million +10.0%23.9%10.3 $18.13
8/31/20255,410,000 shares $92.02 million +5.3%21.8%10.1 $17.01
8/15/20255,140,000 shares $100.13 million +17.6%20.7%9.4 $19.48
7/31/20254,370,000 shares $53.36 million -2.5%17.6%9.5 $12.21
7/15/20254,480,000 shares $58.91 million -11.1%18.0%10.1 $13.15
6/30/20255,040,000 shares $65.57 million +1.4%20.3%10.9 $13.01
6/15/20254,970,000 shares $61.53 million -9.6%20.0%11.2 $12.38
5/31/20255,500,000 shares $69.47 million +1.7%22.2%12.3 $12.63
5/15/20255,410,000 shares $62.97 million +5.3%21.8%12.7 $11.64
4/30/20255,140,000 shares $65.84 million +1.4%21.1%12.1 $12.81
4/15/20255,070,000 shares $53.59 million +9.0%20.8%11.7 $10.57
3/31/20254,650,000 shares $49.24 million +5.4%19.1%10.7 $10.59
3/15/20254,410,000 shares $62.09 million +5.3%18.1%10.6 $14.08
2/28/20254,190,000 shares $70.35 million -1.0%17.2%10.1 $16.79
2/15/20254,230,000 shares $76.35 million -6.8%17.4%10.4 $18.05
1/31/20254,540,000 shares $77.04 million -9.9%18.5%10.6 $16.97
1/15/20255,040,000 shares $84.47 million +4.6%20.5%12.5 $16.76
12/31/20244,820,000 shares $81.80 million +8.6%19.6%12 $16.97
12/15/20244,440,000 shares $76.41 million +1.6%18.1%11.3 $17.21
11/30/20244,370,000 shares $80.15 million -2.5%17.8%11.1 $18.34
11/15/20244,480,000 shares $71.77 million -2.2%18.2%11.4 $16.02
10/31/20244,580,000 shares $81.20 million +3.4%18.5%12.8 $17.73
10/15/20244,430,000 shares $92.90 million -3.7%17.9%12 $20.97
9/30/20244,600,000 shares $106.77 million -12.1%18.6%11.8 $23.21
9/15/20245,230,000 shares $108.52 million -2.8%21.2%11.6 $20.75
8/31/20245,380,000 shares $113.52 million -1.5%21.8%10.5 $21.10
8/15/20245,460,000 shares $110.62 million +1.9%22.1%9.5 $20.26
7/31/20245,360,000 shares $125.75 million +2.9%21.7%9.1 $23.46
7/15/20245,210,000 shares $121.81 million +11.3%21.2%8.7 $23.38
6/30/20244,680,000 shares $113.96 million +6.9%19.0%7.6 $24.35
6/15/20244,380,000 shares $135.78 million +6.6%17.8%7.4 $31.00
5/31/20244,110,000 shares $159.51 million -0.5%16.7%7.4 $38.81
5/15/20244,130,000 shares $119.83 million -16.1%16.8%8.2 $29.02
4/30/20244,920,000 shares $125.80 million +6.7%20.0%9.7 $25.57
4/15/20244,610,000 shares $135.12 million -4.2%18.8%9.7 $29.31
3/31/20244,810,000 shares $162.43 million +14.3%19.6%10.6 $33.77
3/15/20244,210,000 shares $152.87 million -0.2%17.2%10 $36.31
2/29/20244,220,000 shares $163.57 million -6.6%17.3%10.1 $38.76
2/15/20244,520,000 shares $172.62 million +3.4%18.6%11.4 $38.19
1/31/20244,370,000 shares $144.08 million +5.3%18.0%10.3 $32.97
1/15/20244,150,000 shares $137.57 million +0.5%17.1%9.8 $33.15
12/31/20234,130,000 shares $130.22 million -6.8%17.0%10.1 $31.53
12/15/20234,430,000 shares $127.94 million -18.4%18.2%10.9 $28.88
11/30/20235,430,000 shares $129.99 million +7.1%22.3%13.5 $23.94
11/15/20235,070,000 shares $114.18 million +1.6%20.8%13.1 $22.52
10/31/20234,990,000 shares $95.31 million +4.2%20.6%13.6 $19.10
10/15/20234,790,000 shares $109.79 million +3.9%19.8%12.3 $22.92
9/30/20234,610,000 shares $117.79 million +10.0%19.0%10.8 $25.55
9/15/20234,190,000 shares $119.58 million +6.6%17.3%9.4 $28.54
8/31/20233,930,000 shares $119.28 million +0.3%16.2%8.8 $30.35
8/15/20233,920,000 shares $117.36 million +2.1%16.2%8.9 $29.94
7/31/20233,840,000 shares $134.25 million +5.8%15.9%8.6 $34.96
7/15/20233,630,000 shares $128.65 million +9.0%15.0%8.4 $35.44
6/30/20233,330,000 shares $95.50 million -8.0%13.8%7.7 $28.68
6/15/20233,620,000 shares $99.48 million +0.3%15.0%6.8 $27.48
5/31/20233,610,000 shares $98.70 million +8.7%15.0%7 $27.34
5/15/20233,320,000 shares $101.69 million +5.7%13.8%6.4 $30.63
4/30/20233,140,000 shares $83.59 million +11.7%13.7%6.4 $26.62
4/15/20232,810,000 shares $77.47 million +6.0%12.3%5.9 $27.57
3/31/20232,650,000 shares $63.52 million +4.3%11.6%5.8 $23.97
3/15/20232,540,000 shares $40.49 million +8.6%11.1%7.5 $15.94
2/28/20232,340,000 shares $38.03 million +4.9%10.2%5.8 $16.25
2/15/20232,230,000 shares $41.32 million +21.9%9.8%5.5 $18.53
1/31/20231,830,000 shares $38.67 million +9.6%8.0%3.8 $21.13
1/15/20231,670,000 shares $33.20 million -12.1%7.3%2.9 $19.88
12/30/20221,900,000 shares $32.22 million -27.8%8.3%3.3 $16.96
12/15/20222,630,000 shares $47.97 million -7.4%11.5%4.5 $18.24
11/30/20222,840,000 shares $52.37 million +9.2%12.4%5.2 $18.44
11/15/20222,600,000 shares $46.80 million -10.0%11.4%4.8 $18.00
10/31/20222,890,000 shares $51.15 million +9.5%12.6%5.6 $17.70
10/15/20222,640,000 shares $37.75 million +6.0%11.5%6.2 $14.30
9/30/20222,490,000 shares $36.90 million +9.7%10.9%5.7 $14.82
9/15/20222,270,000 shares $37.18 million +1.3%9.9%4.9 $16.38
8/31/20222,240,000 shares $31.45 million -14.2%9.8%4.1 $14.04
8/15/20222,610,000 shares $56.56 million -7.8%11.4%4.4 $21.67
7/31/20222,830,000 shares $49.67 million -2.1%12.4%4.5 $17.55
7/15/20222,890,000 shares $48.41 million -2.7%12.7%4.4 $16.75
6/30/20222,970,000 shares $46.75 million -12.1%13.1%4 $15.74
6/15/20223,380,000 shares $44.99 million +1.2%14.9%4.6 $13.31
5/31/20223,340,000 shares $66.40 million +8.1%14.7%5 $19.88
5/15/20223,090,000 shares $52.47 million +1.3%13.6%4.8 $16.98
4/30/20223,050,000 shares $59.11 million +24.0%13.4%5.1 $19.38
4/15/20222,460,000 shares $65.21 million -5.0%10.8%4 $26.51
3/31/20222,590,000 shares $69.83 million +9.8%11.4%5 $26.96
3/15/20222,360,000 shares $43.80 million -4.5%10.4%4.4 $18.56
2/28/20222,470,000 shares $59.21 million -4.6%10.9%4.3 $23.97
2/15/20222,590,000 shares $64.36 million -1.9%11.4%4.4 $24.85
1/31/20222,640,000 shares $68.98 million +17.3%11.6%4.2 $26.13
1/15/20222,250,000 shares $75.33 million -4.3%9.9%3.7 $33.48
12/31/20212,350,000 shares $86.97 million +10.9%10.4%4.1 $37.01
12/15/20212,120,000 shares $75.30 million -15.2%9.3%3.6 $35.52
11/30/20212,500,000 shares $99.38 million +12.1%11.0%5 $39.75
11/15/20212,230,000 shares $79.23 million +9.9%9.8%4.6 $35.53
10/29/20212,030,000 shares $91.25 million +8.0%9.3%3.3 $44.95
10/15/20211,880,000 shares $85.65 million -2.6%8.7%2.2 $45.56
9/30/20211,930,000 shares $92.22 million -8.1%8.9%2.3 $47.78
9/15/20212,100,000 shares $109.81 million -14.6%9.7%2.4 $52.29
8/31/20212,460,000 shares $134.83 million +8.9%11.4%2.8 $54.81
8/13/20212,260,000 shares $108.53 million -38.6%10.5%2.6 $48.02
7/30/20213,680,000 shares $115.22 million -1.6%18.1%4.4 $31.31
7/15/20213,740,000 shares $104.79 million -6.5%17.3%7.2 $28.02
6/30/20214,000,000 shares $135.36 million -8.3%18.5%7.5 $33.84
6/15/20214,360,000 shares $146.15 million -13.0%20.2%8.1 $33.52
5/28/20215,010,000 shares $146.39 million -2.9%23.2%9.1 $29.22
5/14/20215,160,000 shares $133.08 million +13.4%N/A7.8 $25.79

ARCT Short Interest - Frequently Asked Questions

Short interest is the volume of Arcturus Therapeutics shares that have been sold short but have not yet been closed out or covered. As of April 15th, investors have sold 6,251,989 shares of ARCT short. 26.37% of Arcturus Therapeutics' shares are currently sold short. Learn More on Arcturus Therapeutics' 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. ARCT shares currently have a short interest ratio of 14.3. Learn More on Arcturus Therapeutics's short interest ratio.

As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Arcturus Therapeutics: Caption Management LLC, 683 Capital Management LLC, Diadema Partners LP, Persistent Asset Partners Ltd, Walleye Trading LLC, Walleye Capital LLC, Exome Asset Management LLC, Jane Street Group LLC, Group One Trading LLC, and Simplex Trading LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission.

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. 26.37% of Arcturus Therapeutics' floating shares are currently sold short.

Arcturus Therapeutics saw a drop in short interest in April. As of April 15th, there was short interest totaling 6,251,989 shares, a drop of 3.1% from the previous total of 6,450,517 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.

26.37% of Arcturus Therapeutics' shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Arcturus Therapeutics: Annexon, Inc. (13.74%), Amphastar Pharmaceuticals, Inc. (12.09%), Xencor, Inc. (14.76%), Phathom Pharmaceuticals, Inc. (13.20%), Janux Therapeutics, Inc. (13.31%), Maravai LifeSciences Holdings, Inc. (3.67%), Compass Therapeutics, Inc. (13.30%), Sana Biotechnology, Inc. (21.91%), Schrodinger, Inc. (18.71%), Bright Minds Biosciences Inc. (11.62%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($87.50 billion), Invesco QQQ ($42.26 billion), iShares Russell 2000 ETF ($24.79 billion), Salesforce Inc. ($13.16 billion), SPDR S&P Biotech ETF ($10.01 billion), Western Digital Corporation ($9.77 billion), Sandisk Corporation ($8.69 billion), iShares 20+ Year Treasury Bond ETF ($8.06 billion), CoreWeave Inc. ($7.67 billion), and iShares iBoxx $ High Yield Corporate Bond ETF ($7.64 billion). View all of the most shorted stocks.

Short selling ARCT is an investing strategy that aims to generate trading profit from Arcturus Therapeutics as its price is falling. ARCT shares are trading up $0.32 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 Arcturus Therapeutics 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 ARCT, 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 ARCT, twice per month. The most recent reporting period available is April, 15 2026.

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

  • 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:ARCT) was last updated on 5/9/2026 by MarketBeat.com Staff.
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