MASS
908 Devices Inc. Common Stock
stockNASDAQ
Market OpenNov 13, 2026 2:34:10 PM EST
9.59USD-2.043%(-0.20)173,673
As of 2026-10-30, there were 2,546,983 shares short with a short interest of 7.79%.
MASS Short Interest - Official
MASS Short Position Change - Official
MASS Short Interest - Official
| Settlement Date1 | Short Interest % | Short Position | Days to Cover2 | Short Position Change | Short Position Change % | Shares Out | Shares Float |
|---|---|---|---|---|---|---|---|
| 2026-10-30 | 7.79 | 2,546,983 | 7.11 | -161,446 | -5.96 | 41,333,705 | 32,692,105 |
| 2026-10-15 | 8.28 | 2,708,429 | 7.12 | -19,503 | -0.71 | 41,333,705 | 32,717,112 |
| 2026-09-30 | 8.86 | 2,727,932 | 6.47 | -18,839 | -0.69 | 41,333,705 | 30,788,985 |
| 2026-09-15 | 8.92 | 2,746,771 | 9.29 | -62,696 | -2.23 | 41,333,705 | 30,788,985 |
| 2026-08-31 | 9.12 | 2,809,467 | 5.54 | +16,934 | +0.61 | 41,333,705 | 30,788,985 |
| 2026-08-14 | 9.07 | 2,792,533 | 5.06 | -596,532 | -17.60 | 41,333,705 | 30,788,985 |
| 2026-07-31 | 11.01 | 3,389,065 | 11.02 | +154,244 | +4.77 | 41,027,204 | 30,788,985 |
| 2026-07-15 | 10.51 | 3,234,821 | 14.96 | +155,135 | +5.04 | 41,027,204 | 30,788,985 |
| 2026-06-30 | 10.86 | 3,079,686 | 6.91 | -126,412 | -3.94 | 37,813,621 | 28,352,107 |
| 2026-06-15 | 11.29 | 3,206,098 | 13.75 | -136,945 | -4.10 | 37,813,621 | 28,391,660 |
| 2026-05-15 | 11.86 | 3,343,043 | 10.57 | -134,802 | -3.88 | 37,813,621 | 28,199,076 |
| 2026-04-30 | 12.94 | 3,477,845 | 15.09 | +645 | +0.02 | 37,446,534 | 26,876,016 |
| 2026-04-15 | 12.94 | 3,477,200 | 13.71 | -150,095 | -4.14 | 37,379,953 | 26,876,016 |
| 2026-03-31 | 13.50 | 3,627,295 | 13.39 | -125,074 | -3.33 | 37,379,953 | 26,876,016 |
| 2026-03-13 | 13.96 | 3,752,369 | 11.32 | -124,024 | -3.20 | 36,192,978 | 26,876,016 |
| 2026-02-27 | 14.42 | 3,876,393 | 21.01 | +48,001 | +1.25 | 36,192,978 | 26,876,016 |
| 2026-02-13 | 14.24 | 3,828,392 | 11.47 | +638,751 | +20.03 | 36,192,978 | 26,876,016 |
| 2026-01-30 | 11.87 | 3,189,641 | 7.26 | -135,021 | -4.06 | 36,192,978 | 26,876,016 |
| 2026-01-15 | 12.37 | 3,324,662 | 11.73 | +17,028 | +0.51 | 36,192,978 | 26,876,016 |
| 2025-12-31 | 12.31 | 3,307,634 | 4.78 | +212,200 | +6.86 | 36,192,978 | 26,876,016 |
| 2025-12-15 | 11.52 | 3,095,434 | 8.83 | +304,359 | +10.90 | 36,192,978 | 26,876,016 |
| 2025-11-28 | 10.40 | 2,791,075 | 6.40 | +534,558 | +23.69 | 36,192,978 | 26,848,293 |
| 2025-11-14 | 8.51 | 2,256,517 | 5.28 | +304,820 | +15.62 | 36,192,978 | 26,509,057 |
Historical data is split-adjusted.
1 Data from Finra. Finra publishes an updated file every two weeks.
2 Days to Cover (DTC) is also called Short Ratio. This is the Short Position / Average Daily Trading Volume.