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NAPCO Security Technologies (NSSC) Short Interest Ratio & Short Volume

NAPCO Security Technologies logo
$38.87 -0.74 (-1.87%)
As of 08/12/2026 04:00 PM Eastern
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NAPCO Security Technologies Short Interest Overview

As of July 31, 2026, NAPCO Security Technologies (NSSC) had a short interest of 3.03 million shares sold short, representing 9.00% of the public float. This marks a -11.54% decrease in short interest since the prior report. The short interest ratio (days to cover) is 11.7, meaning it would take 11.7 days of the average trading volume of 261,566 shares to cover all short positions.

Current Short Interest
3,032,819 shares
Previous Short Interest
3,428,459 shares
Change Vs. Previous Month
-11.54%
Dollar Volume Sold Short
$112.46 million
Short Interest Ratio
11.7 Days to Cover
Last Record Date
July 31, 2026
Outstanding Shares
35,730,000 shares
Short Percent of Float
9.00%
Today's Trading Volume
226,397 shares
Average Trading Volume
261,566 shares
Today's Volume Vs. Average
87%
Short Selling NAPCO Security Technologies?
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

NSSC Short Interest Over Time

NSSC Days to Cover Over Time

NSSC Percentage of Float Shorted Over Time

NAPCO Security Technologies 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
7/31/20263,032,819 shares $112.46 million -11.5%9.0%11.66 $37.08
7/15/20263,428,459 shares $121.92 million +3.3%10.2%10.25 $35.56
6/30/20263,318,836 shares $126.05 million +16.2%9.8%5.42 $37.98
6/15/20262,856,996 shares $107.34 million +6.3%8.5%6.62 $37.57
5/29/20262,688,998 shares $100.92 million -5.1%8.0%6.17 $37.53
5/15/20262,833,507 shares $102.63 million -11.4%8.4%5.94 $36.22
4/30/20263,197,161 shares $149.47 million -2.2%9.5%12.07 $46.75
4/15/20263,267,488 shares $144.46 million -0.9%9.7%9.66 $44.21
3/31/20263,296,259 shares $129.84 million -29.3%9.8%5.43 $39.39
3/13/20264,664,025 shares $198.55 million +54.1%13.9%3.51 $42.57
2/27/20263,027,521 shares $141.11 million -1.8%9.0%5.84 $46.61
2/13/20263,082,557 shares $136.09 million +6.3%9.1%4.45 $44.15
1/30/20262,899,535 shares $106.96 million +7.9%8.6%7 $36.89
1/15/20262,687,980 shares $106.23 million +3.6%8.0%9.87 $39.52
12/31/20252,594,604 shares $108.19 million +5.9%7.7%7.67 $41.70
12/15/20252,450,548 shares $101.70 million +12.2%7.3%5.58 $41.50
11/28/20252,184,772 shares $88.26 million -13.5%6.5%7.04 $40.40
11/14/20252,525,983 shares $101.92 million +0.3%7.5%7.01 $40.35
10/31/20252,519,329 shares $111.23 million -0.2%7.5%10.09 $44.15
10/15/20252,520,000 shares $109.62 million -1.2%7.5%6.8 $43.50
9/30/20252,550,000 shares $109.52 million +9.4%N/A6.8 $42.95
9/15/20252,330,000 shares $101.73 million -13.7%N/A6.3 $43.66
8/31/20252,700,000 shares $102.74 million No Change8.0%8.3 $38.05
8/15/20252,700,000 shares $82.32 million -5.3%N/A8.6 $30.49
7/31/20252,850,000 shares $87.01 million -10.1%8.4%9 $30.53
7/15/20253,170,000 shares $95.73 million -7.3%N/A8.7 $30.20
6/30/20253,420,000 shares $101.54 million +4.0%10.1%8.3 $29.69
6/15/20253,290,000 shares $90.80 million -9.1%9.7%7.4 $27.60
5/31/20253,620,000 shares $101.58 million -1.9%10.5%7.8 $28.06
5/15/20253,690,000 shares $101.95 million -6.6%10.7%7.6 $27.63
4/30/20253,950,000 shares $90.26 million +10.6%N/A7.6 $22.85
4/15/20253,570,000 shares $77.25 million +9.5%10.3%6 $21.64
3/31/20253,260,000 shares $75.05 million +6.9%9.5%5.6 $23.02
3/15/20253,050,000 shares $76.83 million +32.0%8.8%5.7 $25.19
2/28/20252,310,000 shares $56.73 million +6.0%6.7%4.5 $24.56
2/15/20252,180,000 shares $55.92 million -21.9%6.3%4.5 $25.65
1/31/20252,790,000 shares $102.39 million -7.3%N/A5.9 $36.70
1/15/20253,010,000 shares $104.12 million -1.3%N/A8.1 $34.59
12/31/20243,050,000 shares $108.46 million -8.7%N/A8.1 $35.56
12/15/20243,340,000 shares $123.58 million +10.2%N/A8.4 $37.00
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11/30/20243,030,000 shares $118.87 million -0.3%N/A6.8 $39.23
11/15/20243,040,000 shares $109.32 million -12.6%N/A4.6 $35.96
10/31/20243,480,000 shares $133.91 million +5.1%N/A5.2 $38.48
10/15/20243,310,000 shares $137.99 million +6.4%N/A5.5 $41.69
9/30/20243,110,000 shares $125.83 million -1.9%N/A5 $40.46
9/15/20243,170,000 shares $121.82 million -26.6%N/A5.2 $38.43
8/31/20244,320,000 shares $200.36 million +26.3%N/A7.7 $46.38
8/15/20243,420,000 shares $193.54 million -2.6%N/A9 $56.59
7/31/20243,510,000 shares $195.89 million -4.9%N/A8.9 $55.81
7/15/20243,690,000 shares $209.04 million -3.2%N/A8.6 $56.65
6/30/20243,810,000 shares $197.93 million -0.8%N/A9.6 $51.95
6/15/20243,840,000 shares $198.53 million -1.0%N/A9.9 $51.70
5/31/20243,880,000 shares $192.64 million +3.7%N/A9.6 $49.65
5/15/20243,740,000 shares $170.73 million +4.5%N/A8.9 $45.65
4/30/20243,580,000 shares $145.71 million +33.6%N/A8.9 $40.70
4/15/20242,680,000 shares $104.41 million No ChangeN/A7.1 $38.96
3/31/20242,680,000 shares $107.63 million +3.9%N/A7.7 $40.16
3/15/20242,580,000 shares $100.62 million -4.4%N/A7.5 $39.00
2/29/20242,700,000 shares $121.58 million +18.4%N/A7.9 $45.03
2/15/20242,280,000 shares $102.87 million -5.8%N/A7.3 $45.12
1/31/20242,420,000 shares $84.10 million +3.0%N/A6.5 $34.75
1/15/20242,350,000 shares $76.94 million -1.3%N/A6.2 $32.74
12/31/20232,380,000 shares $81.52 million -2.5%N/A6 $34.25
12/15/20232,440,000 shares $83.86 million -6.5%N/A6.1 $34.37
11/30/20232,610,000 shares $79.87 million +3.6%N/A6.4 $30.60
11/15/20232,520,000 shares $70.48 million +4.6%N/A5.4 $27.97
10/31/20232,410,000 shares $44.27 million -1.2%N/A3.2 $18.37
10/15/20232,440,000 shares $49.70 million +1.2%N/A3.6 $20.37
9/30/20232,410,000 shares $53.62 million -5.9%N/A3.5 $22.25
9/15/20232,560,000 shares $60.03 million -6.2%N/A3.6 $23.45
8/31/20232,730,000 shares $67.65 million -53.1%N/A3.8 $24.78
8/15/20235,820,000 shares $222.62 million +1.4%N/A8.8 $38.25
7/31/20235,740,000 shares $215.14 million -1.5%N/A15 $37.48
7/15/20235,830,000 shares $210.52 million -2.4%N/A12.8 $36.11
6/30/20235,970,000 shares $206.86 million +2.2%N/A13 $34.65
6/15/20235,840,000 shares $222.68 million +1.4%N/A12 $38.13
5/31/20235,760,000 shares $214.21 million +0.9%N/A11.2 $37.19
5/15/20235,710,000 shares $197.57 million +21.2%N/A11.3 $34.60
4/30/20234,710,000 shares $146.01 million +12.1%N/A9 $31.00
4/15/20234,200,000 shares $140.28 million +18.6%N/A9.8 $33.40
3/31/20233,540,000 shares $133.03 million +28.7%N/A8.6 $37.58
3/15/20232,750,000 shares $89.02 million -5.8%N/A8 $32.37
2/28/20232,920,000 shares $92.27 million +3.2%N/A10.6 $31.60
2/15/20232,830,000 shares $92.77 million -4.4%N/A11.3 $32.78
1/31/20232,960,000 shares $85.75 million +2.1%N/A12.5 $28.97
1/15/20232,900,000 shares $85.41 million +1.4%N/A14.1 $29.45
12/30/20222,860,000 shares $78.59 million +8.8%N/A13.4 $27.48
12/15/20222,630,000 shares $70.04 million +5.6%N/A11.9 $26.63
11/30/20222,490,000 shares $65.69 million +7.8%N/A11 $26.38
11/15/20222,310,000 shares $65.07 million -1.7%N/A9.4 $28.17
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10/31/20222,350,000 shares $66.79 million +0.4%N/A10.4 $28.42
10/15/20222,340,000 shares $63.25 million No ChangeN/A11.7 $27.03
9/30/20222,340,000 shares $68.05 million +10.9%N/A12.1 $29.08
9/15/20222,110,000 shares $63.51 million +20.6%N/A11.7 $30.10
8/31/20221,750,000 shares $51.91 million +0.6%N/A11 $29.66
8/15/20221,740,000 shares $46.25 million -4.4%N/A14 $26.58
7/31/20221,820,000 shares $46.70 million -1.1%N/A14.7 $25.66
7/15/20221,840,000 shares $44.66 million +1.1%N/A16.3 $24.27
6/30/20221,820,000 shares $37.47 million -1.6%15.8%18.6 $20.59
6/15/20221,850,000 shares $36.94 million +10.8%16.1%19.6 $19.97
5/31/20221,670,000 shares $32.75 million +9.2%N/A18.2 $19.61
5/15/20221,530,000 shares $26.35 million +2.7%N/A17 $17.22
4/30/20221,490,000 shares $26.08 million +4.2%N/A14 $17.50
4/15/20221,430,000 shares $27.47 million -2.1%N/A12 $19.21
3/31/20221,460,000 shares $29.96 million -4.0%N/A11.2 $20.52
3/15/20221,520,000 shares $30.60 million -5.0%N/A10.6 $20.13
2/28/20221,600,000 shares $32.62 million -4.8%N/A10.6 $20.39
2/15/20221,680,000 shares $33.80 million +12.8%N/A10.8 $20.12
1/31/20221,490,000 shares $30.98 million +12.9%N/A9.8 $20.79
1/15/20221,320,000 shares $28.99 million +3.9%N/A9.2 $21.96
12/31/20211,270,000 shares $63.47 million +93.2%N/A9.3 $49.98
12/15/2021657,200 shares $16.59 million -11.6%4.2%10.7 $25.24
11/30/2021743,700 shares $34.56 million -0.8%4.8%11.8 $46.47
11/15/2021749,300 shares $35.61 million -4.3%4.8%11.8 $47.53
10/29/2021783,300 shares $37.57 million -1.3%5.0%13.4 $47.96
10/15/2021793,200 shares $35.38 million -4.3%5.5%15.8 $44.60
9/30/2021828,600 shares $35.70 million +3.1%5.7%18.8 $43.08
9/15/2021804,000 shares $32.81 million -14.2%5.5%18 $40.81
8/31/2021937,500 shares $36.68 million -4.1%6.5%22.6 $39.13
8/13/2021978,000 shares $34.96 million +0.4%6.8%22.4 $35.75

NSSC Short Interest - Frequently Asked Questions

Short interest is the volume of NAPCO Security Technologies shares that have been sold short but have not yet been covered or closed out. As of July 31st, traders have sold 3,032,819 shares of NSSC short. 9.00% of NAPCO Security Technologies' shares are currently sold short. Learn More on NAPCO Security Technologies' 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. NSSC shares currently have a short interest ratio of 11.7. Learn More on NAPCO Security Technologies'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. 9.00% of NAPCO Security Technologies' floating shares are currently sold short.

NAPCO Security Technologies saw a drop in short interest in July. As of July 31st, there was short interest totaling 3,032,819 shares, a drop of 11.5% from the previous total of 3,428,459 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.

9.00% of NAPCO Security Technologies' shares are currently sold short. Here is how the short interest of companies in the industry of "electronic equipment & instruments" compare to NAPCO Security Technologies: Vontier Corporation (7.90%), Itron, Inc. (13.86%), nLight (5.26%), Badger Meter, Inc. (14.36%), Mirion Technologies, Inc. (14.04%), OSI Systems, Inc. (13.25%), IPG Photonics Corporation (13.10%), Crane NXT, Co. (12.87%), Ouster, Inc. (10.31%), Arlo Technologies, Inc. (11.10%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($70.50 billion), Invesco QQQ ($50.36 billion), iShares Russell 2000 ETF ($21.20 billion), Western Digital Corporation ($13.40 billion), SPDR S&P Biotech ETF ($11.59 billion), Nebius Group N.V. ($11.46 billion), iShares 20+ Year Treasury Bond ETF ($7.84 billion), iShares iBoxx $ High Yield Corporate Bond ETF ($7.51 billion), iShares Semiconductor ETF ($6.37 billion), and Financial Select Sector SPDR Fund ($6.34 billion). View all of the most shorted stocks.

Short selling NSSC is an investing strategy that aims to generate trading profit from NAPCO Security Technologies as its price is falling. NSSC shares are trading down $0.74 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 NAPCO Security Technologies 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 NSSC, 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 NSSC, twice per month. The most recent reporting period available is July, 31 2026.

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

  • 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:NSSC is sourced from the Financial Industry Regulatory Authority (FINRA), with the most recent report published on 8/11/2026. FINRA publishes updated short interest twice a month.
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