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SUMCO (SUOPY) Short Interest Ratio & Short Volume

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$39.48 -0.05 (-0.13%)
As of 03:59 PM Eastern
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SUMCO Short Interest Overview

As of September 15, 2026, SUMCO (SUOPY) had a short interest of 7,566 shares sold short, representing 0.00% of the public float. This marks a 251.74% increase in short interest since the prior report. The short interest ratio (days to cover) is 0.3, meaning it would take 0.3 days of the average trading volume of 10,912 shares to cover all short positions.

Current Short Interest
7,566 shares
Previous Short Interest
2,151 shares
Change Vs. Previous Month
251.74%
Dollar Volume Sold Short
$282.74 thousand
Short Interest Ratio
0.3 Days to Cover
Last Record Date
September 15, 2026
Outstanding Shares
174,860,000 shares
Short Percent of Float
0.00%
Today's Trading Volume
16,796 shares
Average Trading Volume
10,912 shares
Today's Volume Vs. Average
154%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

SUOPY Short Interest Over Time

SUOPY Days to Cover Over Time

SUOPY Percentage of Float Shorted Over Time

SUMCO 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
9/15/20267,566 shares $282.74 thousand +251.7%0.0%0.31 $37.37
8/31/20262,151 shares $90.59 thousand -94.6%0.0%0.04 $42.12
8/14/202639,691 shares $1.96 million +374.5%0.0%1.13 $49.45
7/31/20268,365 shares $334.68 thousand -84.7%0.0%0.41 $40.01
7/15/202654,506 shares $3.32 million +1,081.8%0.0%1.42 $61.00
6/30/20264,612 shares $238.39 thousand +8.5%0.0%0.79 $51.69
6/15/20264,252 shares $230.50 thousand +426.9%0.0%0.16 $54.21
5/29/2026807 shares $39.77 thousand -95.4%0.0%0.08 $49.28
5/15/202617,425 shares $684.80 thousand +398.4%0.0%0.51 $39.30
4/30/20263,496 shares $108.82 thousand +8.4%0.0%1.01 $31.13
4/15/20263,225 shares $92.56 thousand +100.0%0.0%0.49 $28.70
3/13/20266,609 shares $126.50 thousand +12.5%0.0%0.95 $19.14
2/27/20265,876 shares $136.91 thousand +58.3%0.0%2.44 $23.30
2/13/20263,711 shares $75.71 thousand +7.4%0.0%0.79 $20.40
1/30/20263,455 shares $72.56 thousand +2,537.4%0.0%0.91 $21.00
1/15/2026131 shares $2.74 thousand -35.2%0.0%0.03 $20.95
12/31/2025202 shares $3.59 thousand -93.6%0.0%0.16 $17.75
12/15/20253,163 shares $52.32 thousand -29.8%0.0%1.68 $16.54
11/28/20254,503 shares $72.70 thousand +17.6%0.0%2 $16.15
11/14/20253,829 shares $61.32 thousand +8.0%0.0%0.79 $16.02
10/31/20253,547 shares $72.87 thousand +662.8%0.0%0.2 $20.55
10/15/2025500 shares $11.14 thousand -81.5%0.0%0.6 $22.27
9/30/20252,700 shares $55.40 thousand No ChangeN/A0.3 $20.52
9/15/20252,700 shares $50.36 thousand No ChangeN/A0.4 $18.65
7/31/20251,100 shares $17.25 thousand -59.3%0.0%2.8 $15.68
7/15/20252,700 shares $43.36 thousand +350.0%N/A3 $16.06
6/30/2025600 shares $9.25 thousand -50.0%0.0%2 $15.41
6/15/20251,200 shares $17.26 thousand -36.8%0.0%0.3 $14.38
5/31/20251,900 shares $25.46 thousand +1,800.0%0.0%0.5 $13.40
5/15/2025100 shares $1.37 thousand No Change0.0%0 $13.67
4/15/20253,000 shares $38.40 thousand +172.7%0.0%0.4 $12.80
3/31/20251,100 shares $14.92 thousand +57.1%0.0%0.6 $13.56
3/15/2025700 shares $11.20 thousand +600.0%0.0%0 $16.00
2/28/2025100 shares $1.52 thousand -88.9%0.0%0 $15.20
2/15/2025900 shares $13.85 thousand -72.7%0.0%0.1 $15.39
1/31/20253,300 shares $48.84 thousand -50.0%N/A0.3 $14.80
1/15/20256,600 shares $94.35 thousand +88.6%N/A1 $14.30
12/31/20243,500 shares $51.96 thousand +150.0%N/A0.4 $14.84
12/15/20241,400 shares $21.09 thousand No ChangeN/A0 $15.07
11/15/2024800 shares $13.55 thousand +33.3%N/A0.1 $16.93
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10/31/2024600 shares $11.33 thousand -40.0%N/A0.1 $18.88
10/15/20241,000 shares $21.15 thousand -98.9%N/A0.3 $21.15
9/30/202489,800 shares $1.94 million +5,512.5%N/A3.8 $21.66
9/15/20241,600 shares $33.04 thousand No ChangeN/A0.1 $20.65
8/15/2024500 shares $11.70 thousand -54.6%N/A0 $23.39
7/31/20241,100 shares $36.25 thousand -56.0%N/A0.1 $32.95
7/15/20242,500 shares $80.55 thousand +92.3%N/A0.6 $32.22
6/30/20241,300 shares $37.56 thousand -35.0%N/A0.4 $28.89
6/15/20242,000 shares $61.04 thousand +185.7%N/A0.5 $30.52
5/31/2024700 shares $20.60 thousand -12.5%N/A0.1 $29.43
5/15/2024800 shares $26.22 thousand +60.0%N/A0.1 $32.78
4/30/2024500 shares $15.26 thousand -75.0%N/A0.1 $30.53
4/15/20242,000 shares $68.30 thousand +53.9%N/A0.4 $34.15
3/31/20241,300 shares $39.95 thousand +550.0%N/A0.2 $30.73
3/15/2024200 shares $6.30 thousand -86.7%N/A0 $31.50
2/29/20241,500 shares $46.80 thousand +36.4%N/A0.2 $31.20
2/15/20241,100 shares $35.05 thousand -52.2%N/A0.1 $31.87
1/15/20244,900 shares $154.11 thousand +4,800.0%N/A0.8 $31.45
12/31/2023100 shares $3.00 thousand No ChangeN/A0.1 $29.97
12/15/2023100 shares $3.02 thousand -75.0%N/A0.1 $30.23
11/30/2023400 shares $11.94 thousand -71.4%N/A0.4 $29.85
11/15/20231,400 shares $39.76 thousand +55.6%N/A0.7 $28.40
10/31/2023900 shares $23.27 thousand +800.0%N/A0.3 $25.85
10/15/2023100 shares $2.69 thousand -66.7%N/A0.1 $26.89
9/30/2023300 shares $7.71 thousand -57.1%N/A0.2 $25.71
9/15/2023700 shares $18.43 thousand -53.3%N/A0.2 $26.33
8/31/20231,500 shares $39.64 thousand -6.3%N/A0.7 $26.43
8/15/20231,600 shares $41.78 thousand +23.1%N/A0.4 $26.11
7/31/20231,300 shares $38.12 thousand -45.8%N/A0.2 $29.32
7/15/20232,400 shares $73.42 thousand -42.9%N/A0.1 $30.59
6/30/20234,200 shares $119.45 thousand No ChangeN/A1.2 $28.44
6/15/20234,200 shares $124.28 thousand +110.0%N/A4.2 $29.59
5/31/20232,000 shares $56.12 thousand -33.3%N/A1 $28.06
5/15/20233,000 shares $82.50 thousand No ChangeN/A1.3 $27.50
4/30/20233,000 shares $83.55 thousand +2,900.0%N/A1.1 $27.85
4/15/2023100 shares $2.86 thousand -99.1%N/A0 $28.61
3/31/202311,300 shares $341.71 thousand +189.7%N/A2.8 $30.24
3/15/20233,900 shares $109.36 thousand +143.8%N/A1.3 $28.04
2/28/20231,600 shares $44.14 thousand -5.9%N/A0.7 $27.59
2/15/20231,700 shares $49.06 thousand +466.7%N/A0.3 $28.86
1/31/2023300 shares $8.87 thousand No ChangeN/A0.1 $29.57
12/30/2022500 shares $13.12 thousand No ChangeN/A0 $26.24
12/15/2022500 shares $14.82 thousand No ChangeN/A0.4 $29.63
11/30/2022500 shares $14.82 thousand -80.0%N/A0.2 $29.64
11/15/20222,500 shares $75.73 thousand +2,400.0%N/A0.5 $30.29
10/31/2022100 shares $2.54 thousand No ChangeN/A0 $25.37
10/15/2022100 shares $2.40 thousand No ChangeN/A0 $24.01
9/15/2022300 shares $7.83 thousand -72.7%N/A0.1 $26.11
8/31/20221,100 shares $29.94 thousand -38.9%N/A0.2 $27.22
8/15/20221,800 shares $52.23 thousand +38.5%N/A0.4 $29.02
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7/31/20221,300 shares $36.32 thousand +44.4%N/A0.6 $27.94
7/15/2022900 shares $23.24 thousand +800.0%N/A0 $25.82
6/30/2022100 shares $2.59 thousand -93.8%N/A0 $25.90
6/15/20221,600 shares $48.64 thousand -46.7%N/A0.1 $30.40
5/31/20223,000 shares $98.27 thousand +130.8%N/A0.2 $32.76
5/15/20221,300 shares $40.73 thousand -80.0%N/A0.7 $31.33
4/30/20226,500 shares $194.68 thousand +828.6%N/A0.8 $29.95
4/15/2022700 shares $21.46 thousand -30.0%N/A0.4 $30.66
3/31/20221,000 shares $32.52 thousand -93.0%N/A0.4 $32.52
3/15/202214,300 shares $445.45 thousand +581.0%N/A1.9 $31.15
2/28/20222,100 shares $70.04 thousand +40.0%N/A0.6 $33.35
2/15/20221,500 shares $56.25 thousand -40.0%N/A0.4 $37.50
1/31/20222,500 shares $91.28 thousand -35.9%N/A1.6 $36.51
1/15/20223,900 shares $168.29 thousand +39.3%N/A6.5 $43.15
12/31/20212,800 shares $114.80 thousand -3.5%N/A1.8 $41.00
12/15/20212,900 shares $114.17 thousand -27.5%N/A1.5 $39.37
11/30/20214,000 shares $178.44 thousand +400.0%N/A1.8 $44.61
11/15/2021800 shares $34.48 thousand +33.3%N/A0.3 $43.10
10/29/2021600 shares $23.07 thousand -14.3%N/A0 $38.45
10/15/2021700 shares $26.91 thousand +133.3%N/A3.5 $38.44
9/30/2021300 shares $11.15 thousand No ChangeN/A0.2 $37.15

SUOPY Short Interest - Frequently Asked Questions

Short interest is the volume of SUMCO shares that have been sold short but have not yet been closed out or covered. As of September 15th, investors have sold 7,566 shares of SUOPY short. 0.00% of SUMCO's shares are currently sold short. Learn More on SUMCO's 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. SUOPY shares currently have a short interest ratio of 0.3. Learn More on SUMCO'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. 0.00% of SUMCO's floating shares are currently sold short.

SUMCO saw a increase in short interest in September. As of September 15th, there was short interest totaling 7,566 shares, an increase of 251.7% from the previous total of 2,151 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.

0.00% of SUMCO's shares are currently sold short. Here is how the short interest of companies in the industry of "semiconductors & semiconductor equipment" compare to SUMCO: GlobalFoundries Inc. (1.41%), Tower Semiconductor Ltd. (2.43%), Qnity Electronics, Inc. (2.13%), First Solar, Inc. (9.83%), Lasertec Co. (0.02%), Entegris, Inc. (5.29%), MACOM Technology Solutions Holdings, Inc. (3.89%), SiTime Corporation (4.08%), Semtech Corporation (7.36%), MKS Inc. (9.04%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($75.21 billion), Invesco QQQ ($46.31 billion), iShares Russell 2000 ETF ($27.98 billion), SPDR S&P Biotech ETF ($11.59 billion), Nebius Group N.V. ($9.70 billion), Canadian Natural Resources Limited ($9.42 billion), iShares 20+ Year Treasury Bond ETF ($8.70 billion), iShares iBoxx $ High Yield Corporate Bond ETF ($8.53 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($7.79 billion), and Financial Select Sector SPDR Fund ($7.74 billion). View all of the most shorted stocks.

Short selling SUOPY is an investing strategy that aims to generate trading profit from SUMCO as its price is falling. SUOPY shares are trading down $0.05 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 SUMCO 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 SUOPY, 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 SUOPY, twice per month. The most recent reporting period available is September, 15 2026.

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

  • 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 OTCMKTS:SUOPY is sourced from the Financial Industry Regulatory Authority (FINRA), with the most recent report published on 9/24/2026. FINRA publishes updated short interest twice a month.
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