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Applied Optoelectronics (AAOI) Short Interest Ratio & Short Volume

Applied Optoelectronics logo
$103.29 -4.64 (-4.30%)
Closing price 04:00 PM Eastern
Extended Trading
$102.15 -1.14 (-1.11%)
As of 08:00 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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Applied Optoelectronics Short Interest Overview

As of August 31, 2026, Applied Optoelectronics (AAOI) had a short interest of 12.09 million shares sold short, representing 14.86% of the public float. This marks a 15.97% increase in short interest since the prior report. The short interest ratio (days to cover) is 1.3, meaning it would take 1.3 days of the average trading volume of 8.58 million shares to cover all short positions.

Current Short Interest
12,086,618 shares
Previous Short Interest
10,421,985 shares
Change Vs. Previous Month
15.97%
Dollar Volume Sold Short
$1.30 billion
Short Interest Ratio
1.3 Days to Cover
Last Record Date
August 31, 2026
Outstanding Shares
84,570,000 shares
Short Percent of Float
14.86%
Today's Trading Volume
5,672,516 shares
Average Trading Volume
8,582,955 shares
Today's Volume Vs. Average
66%
Short Selling Applied Optoelectronics?
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

AAOI Short Interest Over Time

AAOI Days to Cover Over Time

AAOI Percentage of Float Shorted Over Time

Applied Optoelectronics 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
8/31/202612,086,618 shares $1.30 billion +16.0%14.9%1.32 $107.69
8/14/202610,421,985 shares $1.57 billion -0.1%12.8%0.69 $150.28
7/31/202610,434,298 shares $984.16 million +5.0%12.8%1.2 $94.32
7/15/20269,936,995 shares $1.08 billion -7.6%12.9%1.14 $109.09
6/30/202610,756,408 shares $1.59 billion +5.1%13.9%0.84 $148.16
6/15/202610,232,545 shares $1.96 billion +2.0%13.3%0.66 $191.55
5/29/202610,036,132 shares $1.59 billion +7.5%13.0%0.96 $158.41
5/15/20269,333,296 shares $1.78 billion -7.9%12.1%0.71 $190.36
4/30/202610,132,671 shares $1.67 billion No Change13.1%1.1 $164.36
4/15/202610,132,357 shares $1.44 billion +10.4%13.1%0.7 $142.55
3/31/20269,181,438 shares $776.66 million -10.9%11.9%0.76 $84.59
3/13/202610,301,269 shares $997.27 million -2.5%14.3%0.71 $96.81
2/27/202610,560,298 shares $889.49 million -0.6%13.7%1.69 $84.23
2/13/202610,621,763 shares $472.24 million -8.2%13.8%2.09 $44.46
1/30/202611,565,357 shares $504.37 million -3.8%17.7%2.05 $43.61
1/15/202612,019,130 shares $443.87 million -1.8%18.4%2.49 $36.93
12/31/202512,234,802 shares $426.51 million -3.7%18.8%2.68 $34.86
12/15/202512,707,289 shares $379.95 million -11.7%19.5%2.45 $29.90
11/28/202514,389,524 shares $386.86 million +11.8%22.1%3.16 $26.89
11/14/202512,875,872 shares $276.44 million +5.4%19.7%1.9 $21.47
10/31/202512,222,308 shares $434.63 million -6.4%20.5%2.55 $35.56
10/15/202513,050,000 shares $430.00 million -3.5%21.9%2.5 $32.95
9/30/202513,520,000 shares $350.57 million +10.8%N/A2.7 $25.93
9/15/202512,200,000 shares $360.63 million -5.9%N/A2.4 $29.56
8/31/202512,970,000 shares $313.87 million +8.6%21.8%2.4 $24.20
8/15/202511,940,000 shares $266.98 million +0.9%N/A2.3 $22.36
7/31/202511,830,000 shares $270.55 million +0.1%19.9%2.4 $22.87
7/15/202511,820,000 shares $345.62 million -5.0%N/A2.6 $29.24
6/30/202512,440,000 shares $319.58 million +3.6%23.5%2.7 $25.69
6/15/202512,010,000 shares $185.79 million +10.0%22.6%2.8 $15.47
5/31/202510,920,000 shares $170.90 million +3.3%24.6%2.8 $15.65
5/15/202510,570,000 shares $199.46 million -1.0%23.8%2.4 $18.87
4/30/202510,680,000 shares $136.60 million +11.4%N/A2.5 $12.79
4/15/20259,590,000 shares $109.81 million +1.1%21.6%2.3 $11.45
3/31/20259,490,000 shares $145.67 million -2.5%21.4%2.2 $15.35
3/15/20259,730,000 shares $215.13 million +1.1%21.9%2.4 $22.11
2/28/20259,620,000 shares $210.29 million +10.3%21.7%2.5 $21.86
2/15/20258,720,000 shares $225.85 million -8.7%19.7%2.4 $25.90
1/31/20259,550,000 shares $266.64 million +12.9%N/A2.5 $27.92
1/15/20258,460,000 shares $263.78 million +0.5%N/A2.3 $31.18
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12/31/20248,420,000 shares $310.36 million -11.9%N/A2.3 $36.86
12/15/20249,560,000 shares $348.27 million +3.1%N/A2.6 $36.43
11/30/20249,270,000 shares $382.11 million -5.7%N/A2.7 $41.22
11/15/20249,830,000 shares $263.44 million -9.1%N/A3 $26.80
10/31/202410,810,000 shares $168.85 million -1.0%N/A3.8 $15.62
10/15/202410,920,000 shares $190.01 million -0.9%N/A4.4 $17.40
9/30/202411,020,000 shares $157.70 million -3.4%N/A4.6 $14.31
9/15/202411,410,000 shares $166.70 million +2.4%N/A4.8 $14.61
8/31/202411,140,000 shares $126.44 million +7.2%N/A5 $11.35
8/15/202410,390,000 shares $88.63 million +6.8%N/A5.2 $8.53
7/31/20249,730,000 shares $92.92 million -4.0%N/A4.6 $9.55
7/15/202410,130,000 shares $103.33 million -1.8%N/A5.1 $10.20
6/30/202410,310,000 shares $85.47 million +1.2%N/A5.5 $8.29
6/15/202410,190,000 shares $102.72 million -0.5%N/A5.8 $10.08
5/31/202410,240,000 shares $107.42 million +3.6%N/A5.6 $10.49
5/15/20249,880,000 shares $108.78 million +12.0%N/A4.1 $11.01
4/30/20248,820,000 shares $86.88 million -4.2%N/A3.3 $9.85
4/15/20249,210,000 shares $102.78 million +1.1%N/A3.3 $11.16
3/31/20249,110,000 shares $126.26 million +2.8%N/A3 $13.86
3/15/20248,860,000 shares $112.52 million -3.2%N/A2.8 $12.70
2/29/20249,150,000 shares $146.22 million +13.2%N/A2.6 $15.98
2/15/20248,080,000 shares $181.07 million +3.2%N/A2.2 $22.41
1/31/20247,830,000 shares $123.17 million -1.4%N/A2.5 $15.73
1/15/20247,940,000 shares $138.24 million -1.7%N/A2.8 $17.41
12/31/20238,080,000 shares $156.11 million -14.3%N/A3.1 $19.32
12/15/20239,430,000 shares $204.87 million +6.2%N/A3.8 $21.73
11/30/20238,880,000 shares $117.66 million +4.1%N/A3.8 $13.25
11/15/20238,530,000 shares $108.42 million +14.7%N/A4.1 $12.71
10/31/20237,440,000 shares $55.28 million +0.8%N/A3.1 $7.43
10/15/20237,380,000 shares $55.72 million +6.0%N/A2.2 $7.55
9/30/20236,960,000 shares $76.35 million +1.9%N/A1.8 $10.97
9/15/20236,830,000 shares $67.21 million +15.4%N/A1.7 $9.84
8/31/20235,920,000 shares $81.52 million -3.0%N/A1.4 $13.77
8/15/20236,100,000 shares $90.22 million +6.5%N/A1.6 $14.79
7/31/20235,730,000 shares $38.68 million -11.2%N/A1.8 $6.75
7/15/20236,450,000 shares $58.95 million +26.0%24.9%3.3 $9.14
6/30/20235,120,000 shares $30.52 million +43.8%19.8%3.8 $5.96
6/15/20233,560,000 shares $15.41 million +14.5%N/A4.7 $4.33
5/31/20233,110,000 shares $6.90 million +2.0%N/A13.3 $2.22
5/15/20233,050,000 shares $5.00 million +1.7%N/A16.9 $1.64
4/30/20233,000,000 shares $5.82 million -2.9%N/A16.2 $1.94
4/15/20233,090,000 shares $6.55 million +0.3%N/A17.7 $2.12
3/31/20233,080,000 shares $6.81 million -1.6%N/A17.2 $2.21
3/15/20233,130,000 shares $7.64 million -1.9%N/A18.8 $2.44
2/28/20233,190,000 shares $8.96 million +1.0%12.0%18.8 $2.81
2/15/20233,160,000 shares $8.94 million -2.2%12.1%18.5 $2.83
1/31/20233,230,000 shares $7.72 million -3.0%12.3%20.1 $2.39
1/15/20233,330,000 shares $8.09 million -0.3%12.7%19.2 $2.43
12/30/20223,340,000 shares $6.31 million -0.9%12.8%18 $1.89
12/15/20223,370,000 shares $7.14 million +2.1%12.9%15.5 $2.12
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11/30/20223,300,000 shares $7.26 million -0.6%12.7%2.1 $2.20
11/15/20223,320,000 shares $7.80 million -4.1%12.7%2.1 $2.35
10/31/20223,460,000 shares $9.52 million No Change13.3%2.1 $2.75
10/15/20223,460,000 shares $9.48 million -2.8%13.6%2.1 $2.74
9/30/20223,560,000 shares $9.68 million -12.3%14.0%2.2 $2.72
9/15/20224,060,000 shares $10.15 million -0.3%16.0%2.5 $2.50
8/31/20224,070,000 shares $9.81 million -1.2%16.1%17.2 $2.41
8/15/20224,120,000 shares $11.78 million -0.7%16.3%17.2 $2.86
7/31/20224,150,000 shares $7.14 million -0.7%16.5%19.5 $1.72
7/15/20224,180,000 shares $6.81 million +0.5%16.7%18.7 $1.63
6/30/20224,160,000 shares $6.45 million +1.5%16.6%18.1 $1.55
6/15/20224,100,000 shares $8.12 million +2.0%22.3%17 $1.98
5/31/20224,020,000 shares $9.53 million +0.3%15.6%16.7 $2.37
5/15/20224,010,000 shares $9.34 million +3.4%15.5%13.5 $2.33
4/30/20223,880,000 shares $9.97 million +1.8%15.3%11.5 $2.57
4/15/20223,810,000 shares $11.54 million -6.2%15.0%10.9 $3.03
3/31/20224,060,000 shares $14.82 million -1.7%16.0%9.8 $3.65
3/15/20224,130,000 shares $12.97 million +2.2%16.3%9.1 $3.14
2/28/20224,040,000 shares $14.67 million +5.5%15.9%8.3 $3.63
2/15/20223,830,000 shares $14.90 million +7.9%15.2%7.6 $3.89
1/31/20223,550,000 shares $14.56 million -9.2%14.1%5.6 $4.10
1/15/20223,910,000 shares $16.07 million +3.2%15.5%5.3 $4.11
12/31/20213,790,000 shares $19.48 million +9.2%15.1%5.4 $5.14
12/15/20213,470,000 shares $19.92 million +1.5%13.8%5.3 $5.74
11/30/20213,420,000 shares $20.21 million -1.4%13.6%5.4 $5.91
11/15/20213,470,000 shares $20.96 million -22.7%13.8%5.6 $6.04
10/29/20214,490,000 shares $34.35 million -0.2%17.9%7.5 $7.65
10/15/20214,500,000 shares $32.49 million -1.5%18.0%10.9 $7.22
9/30/20214,570,000 shares $32.81 million +1.8%18.3%10.6 $7.18
9/15/20214,490,000 shares $32.69 million -0.2%18.0%8.7 $7.28

AAOI Short Interest - Frequently Asked Questions

Short interest is the volume of Applied Optoelectronics shares that have been sold short but have not yet been closed out or covered. As of August 14th, investors have sold 10,421,985 shares of AAOI short. 12.81% of Applied Optoelectronics' shares are currently sold short. Learn More on Applied Optoelectronics' 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. AAOI shares currently have a short interest ratio of 0.7. Learn More on Applied Optoelectronics'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. 12.81% of Applied Optoelectronics' floating shares are currently sold short.

Applied Optoelectronics saw a decrease in short interest in August. As of August 14th, there was short interest totaling 10,421,985 shares, a decrease of 0.1% from the previous total of 10,434,298 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.

12.81% of Applied Optoelectronics' shares are currently sold short. Here is how the short interest of companies in the industry of "communications equipment" compare to Applied Optoelectronics: Ericsson (1.83%), F5, Inc. (2.20%), Viasat Inc. (8.26%), Viavi Solutions Inc. (3.65%), Belden Inc (8.46%), Extreme Networks, Inc. (5.87%), Digi International Inc. (5.15%), NetScout Systems, Inc. (4.29%), Calix, Inc (7.62%), Vistance Networks, Inc. (10.46%),

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 AAOI is an investing strategy that aims to generate trading profit from Applied Optoelectronics as its price is falling. AAOI shares are trading down $4.39 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 Applied Optoelectronics 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 AAOI, 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 AAOI, 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 AAOI:

  • 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.


Related Companies
Short Interest Tools

Short interest data for NASDAQ:AAOI is sourced from the Financial Industry Regulatory Authority (FINRA), with the most recent report published on 9/10/2026. FINRA publishes updated short interest twice a month.
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