908 Devices (MASS) Short Interest Ratio & Short Volume

Short interest is the volume of 908 Devices shares that have been sold short but have not yet been closed out or covered. As of June 30th, investors have sold 2,500,000 shares of MASS short. 9.52% of 908 Devices' shares are currently sold short. Learn More on 908 Devices' 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. MASS shares currently have a short interest ratio of 4.0. Learn More on 908 Devices's short interest ratio.

As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of 908 Devices: Simplex Trading LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission.

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. 9.52% of 908 Devices' floating shares are currently sold short.

908 Devices saw a increase in short interest in the month of June. As of June 30th, there was short interest totaling 2,500,000 shares, an increase of 7.3% from the previous total of 2,330,000 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.

908 Devices currently has issued a total of 35,861,000 shares. Some of 908 Devices' outstanding shares are available for trading, while others are subject to various restrictions. The public float, also referred to as floating shares or "the float", are shares that publicly owned, unrestricted and available to trade on the open market. 908 Devices currently has a public float of 26,260,000 shares.

9.52% of 908 Devices' shares are currently sold short. Here is how the short interest of companies in the industry of "measuring and control equipment" compare to 908 Devices: Transcat, Inc. (5.01%), Eyepoint Pharmaceuticals, Inc. (10.54%), Allient Inc. (2.33%), Standard BioTools Inc. (3.50%), Cytek Biosciences, Inc. (4.14%), Aehr Test Systems (23.49%), Senseonics Holdings, Inc. (8.62%), Quantum-Si Incorporated (15.87%), Quanterix Corporation (7.72%), Frequency Electronics, Inc. (3.22%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($72.10 billion), Invesco QQQ ($26.89 billion), iShares Russell 2000 ETF ($19.61 billion), MicroStrategy Incorporated ($9.52 billion), iShares 20+ Year Treasury Bond ETF ($8.70 billion), WD-40 Company ($7.66 billion), Technology Select Sector SPDR Fund ($6.10 billion), Invesco S&P 500 Equal Weight ETF ($5.80 billion), Invesco S&P 500 Top 50 ETF ($5.53 billion), and Vanguard Large-Cap ETF ($5.35 billion). View all of the most shorted stocks.

Short selling MASS is an investing strategy that aims to generate trading profit from 908 Devices as its price is falling. MASS shares are trading up $0.17 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 908 Devices 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 MASS, 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 MASS, twice per month. The most recent reporting period available is June, 30 2025.