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Nanobiotix (NBTX) Short Interest Ratio & Short Volume

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$36.18 -2.04 (-5.34%)
As of 04:00 PM Eastern
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Nanobiotix Short Interest Overview

As of July 15, 2026, Nanobiotix (NBTX) had a short interest of 84,555 shares sold short, representing 0.17% of the public float. This marks a 61.05% increase in short interest since the prior report. The short interest ratio (days to cover) is 0.8, meaning it would take 0.8 days of the average trading volume of 127,833 shares to cover all short positions.

Current Short Interest
84,555 shares
Previous Short Interest
52,503 shares
Change Vs. Previous Month
61.05%
Dollar Volume Sold Short
$3.38 million
Short Interest Ratio
0.8 Days to Cover
Last Record Date
July 15, 2026
Outstanding Shares
50,620,000 shares
Short Percent of Float
0.17%
Today's Trading Volume
148,662 shares
Average Trading Volume
127,833 shares
Today's Volume Vs. Average
116%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

NBTX Short Interest Over Time

NBTX Days to Cover Over Time

NBTX Percentage of Float Shorted Over Time

Nanobiotix 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
7/15/202684,555 shares $3.38 million +61.1%0.2%0.81 $39.96
6/30/202652,503 shares $1.98 million -19.8%0.1%0.61 $37.70
6/15/202665,485 shares $2.43 million +95.9%0.1%1.01 $37.12
5/29/202633,421 shares $1.35 million -58.4%0.1%0.58 $40.40
5/15/202680,248 shares $4.13 million +114.6%0.2%0.7 $51.50
4/30/202637,392 shares $1.29 million +232.9%0.1%0.5 $34.62
4/15/202611,234 shares $372.97 thousand -55.9%0.0%0.16 $33.20
3/31/202625,474 shares $786.38 thousand +71.9%0.1%0.39 $30.87
3/13/202614,823 shares $490.20 thousand -3.7%0.0%0.2 $33.07
2/27/202615,389 shares $477.67 thousand -75.8%0.0%0.59 $31.04
2/13/202663,474 shares $1.61 million +115.0%0.1%1.87 $25.34
1/30/202629,530 shares $620.13 thousand +2.4%0.1%2.87 $21.00
1/15/202628,845 shares $610.65 thousand -28.5%0.1%0.6 $21.17
12/31/202540,313 shares $932.04 thousand +29.1%0.1%1.57 $23.12
12/15/202531,224 shares $697.54 thousand -36.1%0.1%0.93 $22.34
11/28/202548,866 shares $1.00 million -7.7%0.1%0.74 $20.55
11/14/202552,949 shares $1.10 million +24.8%0.1%0.91 $20.80
10/31/202542,440 shares $885.72 thousand +46.1%0.1%0.32 $20.87
10/15/202529,100 shares $808.69 thousand -60.7%0.1%0.4 $27.79
9/30/202574,000 shares $1.40 million +572.7%N/A1.4 $18.89
9/15/202511,000 shares $102.52 thousand -53.2%N/A0.4 $9.32
8/31/202523,500 shares $210.09 thousand +23.7%0.1%2.4 $8.94
8/15/202519,000 shares $150.29 thousand +0.5%N/A1.9 $7.91
7/31/202518,900 shares $130.41 thousand +209.8%0.0%2.4 $6.90
7/15/20256,100 shares $32.24 thousand +8.9%N/A0.7 $5.29
6/30/20255,600 shares $26.49 thousand -50.4%0.0%0.6 $4.73
6/15/202511,300 shares $58.20 thousand +66.2%0.0%1.1 $5.15
5/31/20256,800 shares $27.92 thousand -89.1%0.0%0.6 $4.11
5/15/202562,300 shares $228.64 thousand +1,197.9%0.1%5.7 $3.67
4/30/20254,800 shares $15.98 thousand -49.5%N/A0.4 $3.33
4/15/20259,500 shares $32.35 thousand +17.3%0.0%1 $3.41
3/31/20258,100 shares $29.00 thousand -12.0%0.0%0.6 $3.58
3/15/20259,200 shares $29.62 thousand -68.6%0.0%0.5 $3.22
2/28/202529,300 shares $107.79 thousand +37.6%0.1%0.9 $3.68
2/15/202521,300 shares $85.84 thousand +7.0%0.0%0.7 $4.03
1/31/202519,900 shares $69.55 thousand +22.8%N/A0.6 $3.50
1/15/202516,200 shares $47.30 thousand -27.4%N/A0.5 $2.92
12/31/202422,300 shares $64.00 thousand -68.6%N/A0.7 $2.87
12/15/202471,100 shares $236.76 thousand +130.1%N/A2.7 $3.33
11/30/202430,900 shares $99.81 thousand +2.3%N/A1.6 $3.23
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11/15/202430,200 shares $118.69 thousand -10.7%N/A3.3 $3.93
10/31/202433,800 shares $140.61 thousand +10.5%N/A3.7 $4.16
10/15/202430,600 shares $148.72 thousand -8.1%N/A3.2 $4.86
9/30/202433,300 shares $191.48 thousand -18.0%N/A3.5 $5.75
9/15/202440,600 shares $200.97 thousand -19.4%N/A4.2 $4.95
8/31/202450,400 shares $302.40 thousand -1.8%N/A6.2 $6.00
8/15/202451,300 shares $248.81 thousand -0.8%N/A7 $4.85
7/31/202451,700 shares $280.21 thousand +2.0%N/A7.5 $5.42
7/15/202450,700 shares $277.33 thousand -9.8%N/A6.7 $5.47
6/30/202456,200 shares $281 thousand -0.5%N/A2.1 $5.00
6/15/202456,500 shares $259.90 thousand +2.4%N/A1.6 $4.60
5/31/202455,200 shares $388.61 thousand +1.3%N/A1.6 $7.04
5/15/202454,500 shares $398.40 thousand -2.2%N/A1.5 $7.31
4/30/202455,700 shares $325.29 thousand +5.7%N/A1.5 $5.84
4/15/202452,700 shares $294.59 thousand +4.8%N/A1.5 $5.59
3/31/202450,300 shares $326.94 thousand +4.1%N/A2.6 $6.50
3/15/202448,300 shares $335.69 thousand +12.1%N/A3.8 $6.95
2/29/202443,100 shares $269.38 thousand +0.2%N/A2.3 $6.25
2/15/202443,000 shares $317.34 thousand +2.4%N/A2.3 $7.38
1/31/202442,000 shares $319.20 thousand -7.9%N/A2.2 $7.60
1/15/202445,600 shares $357.96 thousand +27.7%N/A2.3 $7.85
12/31/202335,700 shares $259.90 thousand +113.8%N/A1.9 $7.28
12/15/202316,700 shares $104.21 thousand +138.6%N/A0.9 $6.24
11/30/20237,000 shares $39.24 thousand -23.1%N/A0.6 $5.61
11/15/20239,100 shares $53.14 thousand -24.8%N/A0.4 $5.84
10/31/202312,100 shares $79.26 thousand -36.7%N/A0.3 $6.55
10/15/202319,100 shares $127.97 thousand +6.1%N/A0.4 $6.70
9/30/202318,000 shares $157.50 thousand -4.3%N/A0.2 $8.75
9/15/202318,800 shares $177.04 thousand -21.3%0.1%0.1 $9.42
8/31/202323,900 shares $218.45 thousand -15.6%0.1%0.1 $9.14
8/15/202328,300 shares $234.04 thousand -38.9%0.1%0.1 $8.27
7/31/202346,300 shares $356.97 thousand -62.2%0.1%0.2 $7.71
7/15/2023122,400 shares $779.69 thousand +367.2%0.4%0.1 $6.37
6/30/202326,200 shares $135.72 thousand -22.0%0.1%0 $5.18
6/15/202333,600 shares $172.37 thousand -8.5%0.1%0 $5.13
5/31/202336,700 shares $168.09 thousand -49.9%0.1%0.1 $4.58
5/15/202373,200 shares $343.31 thousand +850.7%0.2%0.1 $4.69
4/30/20237,700 shares $16.48 thousand +28.3%0.0%0 $2.14
4/15/20236,000 shares $23.70 thousand -22.1%0.0%3.5 $3.95
3/31/20237,700 shares $27.14 thousand +30.5%0.0%5.9 $3.53
3/15/20235,900 shares $20.47 thousand No Change0.0%4.2 $3.47
2/28/20235,900 shares $20.77 thousand +391.7%0.0%4.2 $3.52
2/15/20231,200 shares $4.43 thousand -33.3%N/A0.8 $3.69
1/31/20231,800 shares $7.69 thousand +50.0%0.0%1.3 $4.27
1/15/20231,200 shares $5.14 thousand -55.6%N/A1 $4.28
12/30/20222,700 shares $9.91 thousand +42.1%0.0%1.6 $3.67
12/15/20221,900 shares $7.60 thousand -9.5%0.0%1 $4.00
11/30/20222,100 shares $8.30 thousand -25.0%0.0%1.1 $3.95
11/15/20222,800 shares $11.63 thousand +40.0%0.0%1.3 $4.16
10/31/20222,000 shares $7.92 thousand -64.9%0.0%0.9 $3.96
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10/15/20225,700 shares $20.01 thousand -52.1%0.0%1.7 $3.51
9/30/202211,900 shares $42.13 thousand +30.8%0.0%4.1 $3.54
9/15/20229,100 shares $38.68 thousand +116.7%0.0%3.5 $4.25
8/31/20224,200 shares $16.76 thousand -2.3%0.0%1.7 $3.99
8/15/20224,300 shares $19.61 thousand +168.8%0.0%1.9 $4.56
7/31/20221,600 shares $3.71 thousand -33.3%N/A0.8 $2.32
7/15/20222,400 shares $8.45 thousand +33.3%0.0%3 $3.52
6/30/20221,800 shares $6.84 thousand +63.6%0.0%2.3 $3.80
6/15/20221,100 shares $4.25 thousand +10.0%N/A0.7 $3.86
5/31/20221,000 shares $5.23 thousand No ChangeN/A0.7 $5.23
5/15/20221,000 shares $5.27 thousand -44.4%N/A0.6 $5.27
4/30/20221,800 shares $10.62 thousand +100.0%0.0%0.6 $5.90
4/15/2022900 shares $5.85 thousand +12.5%N/A0.2 $6.50
3/31/2022800 shares $5.95 thousand -38.5%N/A0.2 $7.44
3/15/20221,300 shares $8.53 thousand +30.0%N/A0.2 $6.56
2/28/20221,000 shares $7.54 thousand -9.1%N/A0.1 $7.54
2/15/20221,100 shares $9.88 thousand -69.4%N/A0.1 $8.98
1/31/20223,600 shares $27.54 thousand -26.5%0.0%0.5 $7.65
1/15/20224,900 shares $44.79 thousand +345.5%0.0%1 $9.14
12/31/20211,100 shares $8.91 thousand -8.3%N/A0.2 $8.10
12/15/20211,200 shares $8.93 thousand -58.6%N/A0.3 $7.44
11/30/20212,900 shares $24.59 thousand +16.0%0.0%0.7 $8.48
11/15/20212,500 shares $23.75 thousand -64.8%0.0%1 $9.50
10/29/20217,100 shares $74.05 thousand -36.6%0.0%3.4 $10.43
10/15/202111,200 shares $143.58 thousand -0.9%0.0%4.9 $12.82
9/30/202111,300 shares $128.37 thousand -11.7%0.0%4 $11.36
9/15/202112,800 shares $153.20 thousand +392.3%0.0%5.8 $11.97
8/31/20212,600 shares $32.76 thousand -27.8%0.0%1.2 $12.60
8/13/20213,600 shares $46.44 thousand -73.1%0.0%1.3 $12.90

NBTX Short Interest - Frequently Asked Questions

Short interest is the volume of Nanobiotix shares that have been sold short but have not yet been closed out or covered. As of July 15th, traders have sold 84,555 shares of NBTX short. 0.17% of Nanobiotix's shares are currently sold short. Learn More on Nanobiotix'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. NBTX shares currently have a short interest ratio of 0.8. Learn More on Nanobiotix'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. 0.17% of Nanobiotix's floating shares are currently sold short.

Nanobiotix saw a increase in short interest in July. As of July 15th, there was short interest totaling 84,555 shares, an increase of 61.0% from the previous total of 52,503 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.

0.17% of Nanobiotix's shares are currently sold short. Here is how the short interest of companies in the industry of "biotechnology" compare to Nanobiotix: Vaxcyte, Inc. (10.19%), TG Therapeutics, Inc. (22.00%), Cogent Biosciences, Inc. (10.37%), ImmunityBio, Inc. (37.85%), Rhythm Pharmaceuticals, Inc. (14.85%), Mirum Pharmaceuticals, Inc. (13.01%), CG Oncology, Inc. (14.42%), Xenon Pharmaceuticals Inc. (6.75%), Dianthus Therapeutics, Inc. (17.39%), Ligand Pharmaceuticals Incorporated (10.14%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($73.09 billion), Invesco QQQ ($48.11 billion), iShares Russell 2000 ETF ($23.61 billion), Sandisk Corporation ($12.69 billion), Nebius Group N.V. ($12.18 billion), Western Digital Corporation ($11.95 billion), SPDR S&P Biotech ETF ($11.73 billion), Quhuo Limited Sponsored ADR ($9.74 billion), VanEck Semiconductor ETF ($9.57 billion), and Financial Select Sector SPDR Fund ($8.43 billion). View all of the most shorted stocks.

Short selling NBTX is an investing strategy that aims to generate trading profit from Nanobiotix as its price is falling. NBTX shares are trading down $0.94 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 Nanobiotix 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 NBTX, 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 NBTX, twice per month. The most recent reporting period available is July, 15 2026.

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

  • 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:NBTX is sourced from the Financial Industry Regulatory Authority (FINRA), with the most recent report published on 7/24/2026. FINRA publishes updated short interest twice a month.
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