MPWR
Monolithic Power Systems, Inc.
stockNASDAQ
Market OpenOct 26, 2026 12:40:16 PM EDT
1,161.14USD+1.844%(+21.02)242,670
Pre-marketOct 26, 2026 8:25:30 AM EDT
1,162.12USD+1.930%(+22.00)
As of 2026-09-30, there were 1,858,921 shares short with a short interest of 3.93%.
MPWR Short Interest - Official
MPWR Short Position Change - Official
MPWR Short Interest - Official
| Settlement Date1 | Short Interest % | Short Position | Days to Cover2 | Short Position Change | Short Position Change % | Shares Out | Shares Float |
|---|---|---|---|---|---|---|---|
| 2026-09-30 | 3.93 | 1,858,921 | 2.33 | -47,918 | -2.51 | 49,143,000 | 47,357,654 |
| 2026-09-15 | 4.03 | 1,906,839 | 3.14 | -91,168 | -4.56 | 49,143,000 | 47,357,654 |
| 2026-08-31 | 4.22 | 1,998,007 | 3.31 | +158,929 | +8.64 | 49,143,000 | 47,357,654 |
| 2026-08-14 | 3.88 | 1,839,078 | 2.73 | -283,233 | -13.35 | 49,143,000 | 47,357,654 |
| 2026-07-31 | 4.48 | 2,122,311 | 2.13 | -334,644 | -13.62 | 49,130,000 | 47,357,163 |
| 2026-07-15 | 5.19 | 2,456,955 | 2.67 | +242,593 | +10.96 | 49,130,000 | 47,330,859 |
| 2026-06-30 | 4.68 | 2,214,362 | 1.50 | -133,960 | -5.70 | 49,130,000 | 47,331,351 |
| 2026-06-15 | 4.96 | 2,348,322 | 3.04 | +372,908 | +18.88 | 49,130,000 | 47,331,351 |
| 2026-05-15 | 4.18 | 1,975,414 | 3.07 | +254,579 | +14.79 | 49,130,000 | 47,245,865 |
| 2026-04-30 | 3.74 | 1,720,835 | 2.76 | -104,735 | -5.74 | 49,118,000 | 46,041,501 |
| 2026-04-15 | 3.97 | 1,825,570 | 3.39 | -159,726 | -8.05 | 49,118,000 | 46,041,501 |
| 2026-03-31 | 4.31 | 1,985,296 | 3.70 | -2,603 | -0.13 | 49,118,000 | 46,041,501 |
| 2026-03-13 | 4.32 | 1,987,899 | 3.52 | -66,346 | -3.23 | 49,118,000 | 46,041,501 |
| 2026-02-27 | 4.46 | 2,054,245 | 4.54 | -45,566 | -2.17 | 48,709,000 | 46,041,501 |
| 2026-02-13 | 4.56 | 2,099,811 | 2.49 | -204,416 | -8.87 | 48,709,000 | 46,041,501 |
| 2026-01-30 | 5.00 | 2,304,227 | 3.74 | -9,018 | -0.39 | 47,907,000 | 46,041,501 |
| 2026-01-15 | 5.02 | 2,313,245 | 4.43 | -542,113 | -18.99 | 47,907,000 | 46,041,501 |
| 2025-12-31 | 6.20 | 2,855,358 | 3.11 | +1,125,374 | +65.05 | 47,907,000 | 46,041,501 |
| 2025-12-15 | 3.76 | 1,729,984 | 3.31 | -120,365 | -6.50 | 47,907,000 | 46,041,501 |
| 2025-11-28 | 4.02 | 1,850,349 | 2.52 | +53,860 | +3.00 | 47,907,000 | 45,985,929 |
| 2025-11-14 | 3.92 | 1,796,489 | 2.71 | +128,694 | +7.72 | 47,907,000 | 45,849,873 |
| 2025-10-31 | 3.60 | 1,667,795 | 2.44 | -213,877 | -11.37 | 47,892,000 | 46,295,281 |
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.