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Apellis Pharmaceuticals (APLS) Short Interest Ratio & Short Volume

Apellis Pharmaceuticals logo
$18.20 +0.04 (+0.22%)
Closing price 04/17/2025 04:00 PM Eastern
Extended Trading
$18.20 0.00 (-0.03%)
As of 04/17/2025 04:32 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 Polygon.io. Learn more.

Apellis Pharmaceuticals Short Interest Data

Apellis Pharmaceuticals (APLS) has a short interest of 22.51 million shares, representing 19.42% of the float (the number of shares available for trading by the public). This marks a 16.57% increase in short interest from the previous month. The short interest ratio (days to cover) is 11.4, indicating that it would take 11.4 days of the average trading volume of 2.14 million shares to cover all short positions.

Current Short Interest
22,510,000 shares
Previous Short Interest
19,310,000 shares
Change Vs. Previous Month
+16.57%
Dollar Volume Sold Short
$492.29 million
Short Interest Ratio
11.4 Days to Cover
Last Record Date
March 31, 2025
Outstanding Shares
125,516,000 shares
Short Percent of Float
19.42%
Today's Trading Volume
2,455,500 shares
Average Trading Volume
2,143,821 shares
Today's Volume Vs. Average
115%
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APLS Short Interest Over Time

APLS Days to Cover Over Time

APLS Percentage of Float Shorted Over Time

Apellis Pharmaceuticals Short Interest History

Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
3/31/202522,510,000 shares $492.29 million +16.6%19.4%11.4 $21.87
3/15/202519,310,000 shares $476.18 million -7.3%16.7%11 $24.66
2/28/202520,820,000 shares $523.62 million +20.1%18.0%10.5 $25.15
2/15/202517,340,000 shares $475.12 million +1.6%15.0%8 $27.40
1/31/202517,060,000 shares $494.91 million -5.4%N/A6.5 $29.01
1/15/202518,040,000 shares $523.70 million -16.0%N/A6 $29.03
12/31/202421,480,000 shares $685.43 million +7.4%N/A6.9 $31.91
12/15/202420,010,000 shares $664.13 million -8.3%N/A6 $33.19
11/30/202421,810,000 shares $740.01 million -5.9%N/A6.7 $33.93
11/15/202423,180,000 shares $608.94 million +11.5%N/A7.7 $26.27
10/31/202420,790,000 shares $566.74 million -1.4%N/A8.7 $27.26
10/15/202421,090,000 shares $589.47 million +38.2%N/A9.9 $27.95
9/30/202415,260,000 shares $440.10 million -0.1%N/A7.9 $28.84
9/15/202415,280,000 shares $574.83 million -5.5%N/A9.6 $37.62
8/31/202416,170,000 shares $629.01 million -0.6%N/A11.2 $38.90
8/15/202416,270,000 shares $612.08 million +2.2%N/A11.2 $37.62
7/31/202415,920,000 shares $630.43 million +4.9%N/A10.6 $39.60
7/15/202415,170,000 shares $606.80 million +2.4%N/A10.3 $40.00
6/30/202414,810,000 shares $568.11 million +6.6%N/A10.1 $38.36
6/15/202413,900,000 shares $583.80 million +6.0%N/A10.1 $42.00
5/31/202413,120,000 shares $514.96 million +4.2%N/A9.6 $39.25
5/15/202412,590,000 shares $527.77 million +1.6%N/A8.6 $41.92
4/30/202412,390,000 shares $547.51 million +16.1%N/A8.4 $44.19
4/15/202410,670,000 shares $549.51 million +2.2%N/A8 $51.50
3/31/202410,440,000 shares $613.66 million -1.4%N/A7.1 $58.78
3/15/202410,590,000 shares $600.88 million +5.3%N/A6.7 $56.74
2/29/202410,060,000 shares $623.42 million -2.0%N/A5.1 $61.97
2/15/202410,270,000 shares $694.05 million -3.8%N/A4.9 $67.58
1/31/202410,670,000 shares $675.30 million -11.3%N/A5.1 $63.29
1/15/202412,030,000 shares $844.87 million +2.9%N/A5.4 $70.23
12/31/202311,690,000 shares $699.76 million -9.9%N/A5.1 $59.86
12/15/202312,980,000 shares $683.79 million -14.9%N/A5.2 $52.68
11/30/202315,260,000 shares $822.06 million -5.5%N/A6.4 $53.87
11/15/202316,140,000 shares $781.18 million -0.6%N/A6.9 $48.40
10/31/202316,230,000 shares $789.75 million -12.7%N/A5.2 $48.66
10/15/202318,590,000 shares $900.50 million +10.9%N/A4.5 $48.44
9/30/202316,770,000 shares $637.93 million +23.2%N/A3.3 $38.04
9/15/202313,610,000 shares $604.83 million +10.6%N/A2.9 $44.44
8/31/202312,310,000 shares $519.61 million -10.5%N/A2.7 $42.21
8/15/202313,750,000 shares $449.90 million +43.2%N/A3.1 $32.72
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7/31/20239,600,000 shares $247.20 million +1.3%N/A2.6 $25.75
7/15/20239,480,000 shares $801.06 million -1.2%N/A3.5 $84.50
6/30/20239,590,000 shares $873.65 million -16.3%N/A6 $91.10
6/15/202311,460,000 shares $1.03 billion +0.9%N/A6.7 $89.60
5/31/202311,360,000 shares $975.26 million +3.3%N/A7 $85.85
5/15/202311,000,000 shares $969.21 million +7.0%N/A5.6 $88.11
4/30/202310,280,000 shares $857.66 million -16.6%N/A5.4 $83.43
4/15/202312,330,000 shares $998.11 million +0.4%N/A6.7 $80.95
3/31/202312,280,000 shares $809.99 million +1.1%N/A7.1 $65.96
3/15/202312,150,000 shares $796.19 million +13.1%N/A7.6 $65.53
2/28/202310,740,000 shares $703.26 million +18.5%N/A7.4 $65.48
2/15/20239,060,000 shares $479.82 million -0.6%N/A6.5 $52.96
1/31/20239,110,000 shares $480.37 million -5.0%N/A6.9 $52.73
1/15/20239,590,000 shares $504.05 million +4.6%N/A7.4 $52.56
12/30/20229,170,000 shares $474.18 million -8.8%N/A7.1 $51.71
12/15/202210,050,000 shares $526.72 million +1.9%N/A6.9 $52.41
11/30/20229,860,000 shares $492.31 million -5.1%N/A6.6 $49.93
11/15/202210,390,000 shares $484.28 million +6.8%N/A6.3 $46.61
10/31/20229,730,000 shares $588.57 million +10.8%N/A6.6 $60.49
10/15/20228,780,000 shares $499.93 million -10.6%N/A6.4 $56.94
9/30/20229,820,000 shares $670.71 million +7.9%N/A6.8 $68.30
9/15/20229,100,000 shares $589.23 million +8.6%N/A6.9 $64.75
8/31/20228,380,000 shares $507.07 million +4.9%N/A6.5 $60.51
8/15/20227,990,000 shares $548.43 million -18.8%N/A7.4 $68.64
7/31/20229,840,000 shares $553.80 million +5.0%N/A8.8 $56.28
7/15/20229,370,000 shares $431.68 million -4.4%N/A8.8 $46.07
6/30/20229,800,000 shares $443.16 million +7.1%N/A9.9 $45.22
6/15/20229,150,000 shares $376.71 million +2.0%N/A8.1 $41.17
5/31/20228,970,000 shares $371.81 million -2.0%N/A7.5 $41.45
5/15/20229,150,000 shares $360.97 million +3.7%N/A7.5 $39.45
4/30/20228,820,000 shares $383.93 million +12.4%N/A7.7 $43.53
4/15/20227,850,000 shares $414.56 million +7.7%N/A6.8 $52.81
3/31/20227,290,000 shares $370.40 million +14.1%N/A6.3 $50.81
3/15/20226,390,000 shares $255.92 million -7.0%8.0%6.8 $40.05
2/28/20226,870,000 shares $292.18 million -1.3%8.5%8.1 $42.53
2/15/20226,960,000 shares $327.61 million -4.7%8.8%8.2 $47.07
1/31/20227,300,000 shares $293.97 million +17.0%9.3%6.8 $40.27
1/15/20226,240,000 shares $251.85 million -6.7%7.9%5.9 $40.36
12/31/20216,690,000 shares $316.30 million -7.3%8.5%6.5 $47.28
12/15/20217,220,000 shares $320.06 million +9.1%9.2%6.3 $44.33
11/30/20216,620,000 shares $278.57 million +12.4%8.6%3.7 $42.08
11/15/20215,890,000 shares $247.85 million -1.0%7.6%3.2 $42.08
10/29/20215,950,000 shares $182.90 million +4.0%8.6%3.6 $30.74
10/15/20215,720,000 shares $198.08 million -10.2%8.3%3.6 $34.63
9/30/20216,370,000 shares $209.96 million +11.4%9.2%4 $32.96
9/15/20215,720,000 shares $194.02 million +10.6%8.3%3.7 $33.92
8/31/20215,170,000 shares $340.44 million +2.4%7.6%5.8 $65.85
8/13/20215,050,000 shares $290.17 million +2.9%7.5%6.4 $57.46
7/30/20214,910,000 shares $314.19 million -21.2%7.9%5.6 $63.99
7/15/20216,230,000 shares $390.18 million +4.9%10.0%7.1 $62.63
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6/30/20215,940,000 shares $375.41 million -0.5%9.5%7 $63.20
6/15/20215,970,000 shares $362.08 million +6.4%9.6%7.7 $60.65
5/28/20215,610,000 shares $315.73 million -18.7%9.0%7.2 $56.28
5/14/20216,900,000 shares $314.92 million -10.6%11.0%8.9 $45.64
4/30/20217,720,000 shares $372.41 million -4.0%N/A12.1 $48.24
4/15/20218,040,000 shares $357.62 million +4.6%N/A12.4 $44.48
3/31/20217,690,000 shares $323.36 million +9.2%N/A11.7 $42.05
3/15/20217,040,000 shares $328.49 million -13.2%N/A10.7 $46.66
2/26/20218,110,000 shares $365.36 million +4.7%12.8%11.8 $45.05
2/12/20217,750,000 shares $366.73 million +1.2%12.4%11 $47.32
1/29/20217,660,000 shares $343.93 million -14.3%12.4%10.6 $44.90
1/15/20218,940,000 shares $479.18 million -1.1%15.1%12.5 $53.60
12/31/20209,040,000 shares $516.46 million +7.1%15.3%13.4 $57.13
12/15/20208,440,000 shares $439.30 million -6.6%14.3%12.3 $52.05
11/30/20209,040,000 shares $426.87 million -9.1%15.3%14.6 $47.22
11/15/20209,940,000 shares $384.98 million -2.5%16.8%16.7 $38.73
10/30/202010,190,000 shares $331.79 million -4.2%17.2%18.1 $32.56
10/15/202010,640,000 shares $376.87 million -2.4%18.0%18.6 $35.42
9/30/202010,900,000 shares $328.85 million +3.8%18.5%16.8 $30.17
9/15/202010,500,000 shares $327.60 million +1.9%17.8%15.5 $31.20
8/31/202010,300,000 shares $317.55 million +0.9%17.5%14 $30.83
8/14/202010,210,000 shares $289.76 million +0.7%17.3%13 $28.38
7/31/202010,140,000 shares $262.52 million +0.8%17.2%12 $25.89
7/15/202010,060,000 shares $321.01 million +4.4%17.1%10.9 $31.91
6/30/20209,640,000 shares $314.84 million +10.2%16.4%10.1 $32.66
6/15/20208,750,000 shares $285.16 million +7.2%14.9%9.1 $32.59
5/29/20208,160,000 shares $277.93 million +11.6%13.9%7.8 $34.06
5/15/20207,310,000 shares $226.61 million +20.2%12.4%6.9 $31.00
4/30/20206,080,000 shares $208.36 million +7.8%10.5%5.9 $34.27

APLS Short Interest - Frequently Asked Questions

What is Apellis Pharmaceuticals' current short interest?

Short interest is the volume of Apellis Pharmaceuticals shares that have been sold short but have not yet been closed out or covered. As of March 31st, investors have sold 22,510,000 shares of APLS short. 19.42% of Apellis Pharmaceuticals' shares are currently sold short. Learn More on Apellis Pharmaceuticals' current short interest.

What is a good short interest ratio for Apellis Pharmaceuticals?

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. APLS shares currently have a short interest ratio of 11.0. Learn More on Apellis Pharmaceuticals's short interest ratio.

Which institutional investors are shorting Apellis Pharmaceuticals?

As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Apellis Pharmaceuticals: GTS Securities LLC, Wolverine Trading LLC, Jefferies Financial Group Inc., Group One Trading LLC, D. E. Shaw & Co. Inc., Caption Management LLC, Citadel Advisors LLC, Jane Street Group LLC, Tudor Investment Corp ET AL, Boothbay Fund Management LLC, Susquehanna International Group LLP, Concourse Financial Group Securities Inc., Walleye Trading LLC, and Walleye Capital LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission.

What is a good short interest percentage for Apellis Pharmaceuticals?

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. 19.42% of Apellis Pharmaceuticals' floating shares are currently sold short.

Is Apellis Pharmaceuticals' short interest increasing or decreasing?

Apellis Pharmaceuticals saw a increase in short interest in the month of March. As of March 31st, there was short interest totaling 22,510,000 shares, an increase of 16.6% from the previous total of 19,310,000 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.

How does Apellis Pharmaceuticals' short interest compare to its competitors?

19.42% of Apellis Pharmaceuticals' shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Apellis Pharmaceuticals: Ascendis Pharma A/S (11.84%), Qiagen (1.88%), Viatris Inc. (3.86%), Roivant Sciences Ltd. (10.28%), Lantheus Holdings, Inc. (9.67%), Revolution Medicines, Inc. (10.47%), BridgeBio Pharma, Inc. (15.15%), TG Therapeutics, Inc. (17.60%), Legend Biotech Co. (5.98%), Sarepta Therapeutics, Inc. (6.92%),

Which stocks are the most shorted right now?

As of the most recent reporting period, the following stocks had the largest short interest positions: Invesco QQQ ($21.93 billion), iShares 20+ Year Treasury Bond ETF ($9.31 billion), Strategy Incorporated ($8.42 billion), Charter Communications, Inc. ($4.52 billion), Apollo Global Management, Inc. ($4.26 billion), Super Micro Computer, Inc. ($3.98 billion), Capital One Financial Co. ($3.79 billion), TC Energy Co. ($3.43 billion), AppLovin Co. ($2.91 billion), and Schlumberger Limited ($2.89 billion). View all of the most shorted stocks.

What does it mean to sell short Apellis Pharmaceuticals stock?

Short selling APLS is an investing strategy that aims to generate trading profit from Apellis Pharmaceuticals as its price is falling. APLS shares are trading up $0.04 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.

How does a short squeeze work against Apellis Pharmaceuticals?

A short squeeze for Apellis Pharmaceuticals 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 APLS, which in turn drives the price of the stock up even further.

How often is Apellis Pharmaceuticals' short interest reported?

Short interest is typically published by a stock exchange once per month. However, NASDAQ publishes a report for U.S. stocks, including APLS, twice per month. The most recent reporting period available is March, 31 2025.




This page (NASDAQ:APLS) was last updated on 4/19/2025 by MarketBeat.com Staff
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