ARM
Arm Holdings plc
stockNASDAQADR
At CloseOct 9, 2026 3:59:57 PM EDT
266.29USD-3.271%(-9.00)4,271,976
Pre-marketOct 9, 2026 9:27:30 AM EDT
280.02USD+1.718%(+4.73)
After-hoursOct 9, 2026 4:57:30 PM EDT
266.51USD+0.084%(+0.22)
As of 2026-09-30, there were 16,189,965 shares short with a short interest of 1.52%.
ARM Short Interest - Official
Short Interest
ARM Short Position Change - Official
Short Position Change
ARM 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 | 1.52 | 16,189,965 | 2.30 | +668,271 | +4.31 | 1,067,998,569 | 1,063,149,144 |
| 2026-09-15 | 1.46 | 15,521,694 | 3.94 | -1,218,921 | -7.28 | 1,067,998,569 | 1,063,149,144 |
| 2026-08-31 | 1.57 | 16,740,615 | 4.39 | -1,523,490 | -8.34 | 1,067,998,569 | 1,063,149,144 |
| 2026-08-14 | 1.72 | 18,264,105 | 4.12 | +1,396,852 | +8.28 | 1,067,998,569 | 1,063,149,144 |
| 2026-07-31 | 1.59 | 16,867,253 | 2.65 | -593,320 | -3.40 | 1,067,998,569 | 1,063,149,144 |
| 2026-07-15 | 1.65 | 17,460,573 | 2.92 | +233,272 | +1.35 | 1,068,078,760 | 1,059,167,312 |
| 2026-06-30 | 1.63 | 17,227,301 | 1.48 | +858,065 | +5.24 | 1,068,078,760 | 1,059,167,312 |
| 2026-06-15 | 1.55 | 16,369,236 | 1.27 | -2,418,823 | -12.87 | 1,068,078,760 | 1,059,167,312 |
| 2026-05-15 | 1.77 | 18,788,059 | 1.67 | +2,673,619 | +16.59 | 1,063,998,569 | 1,059,135,391 |
| 2026-04-30 | 1.53 | 16,114,440 | 1.53 | +160,951 | +1.01 | 1,061,998,569 | 1,056,325,233 |
| 2026-04-15 | 1.51 | 15,953,489 | 2.63 | +506,093 | +3.28 | 1,061,998,569 | 1,056,325,233 |
| 2026-03-31 | 1.46 | 15,447,396 | 1.53 | +735,439 | +5.00 | 1,061,998,569 | 1,056,325,233 |
| 2026-03-13 | 1.39 | 14,711,957 | 4.16 | -113,298 | -0.76 | 1,061,998,569 | 1,056,325,233 |
| 2026-02-27 | 1.40 | 14,825,255 | 4.31 | -2,314,311 | -13.50 | 1,061,998,569 | 1,056,325,233 |
| 2026-02-13 | 1.62 | 17,139,566 | 1.84 | +1,795,414 | +11.70 | 1,061,998,569 | 1,056,325,233 |
| 2026-01-30 | 1.45 | 15,344,152 | 2.10 | -2,036,094 | -11.71 | 1,060,998,569 | 1,056,325,233 |
| 2026-01-15 | 1.65 | 17,380,246 | 3.08 | +1,846,076 | +11.88 | 1,060,998,569 | 1,056,325,233 |
| 2025-12-31 | 1.47 | 15,534,170 | 2.97 | +1,584,094 | +11.36 | 1,060,998,569 | 1,056,325,233 |
| 2025-12-15 | 1.32 | 13,950,076 | 4.73 | -256,700 | -1.81 | 1,060,998,569 | 1,056,325,233 |
| 2025-11-28 | 1.34 | 14,206,776 | 3.82 | +915,360 | +6.89 | 1,060,998,569 | 1,056,325,233 |
| 2025-11-14 | 1.26 | 13,291,416 | 2.91 | -86,062 | -0.64 | 1,060,998,569 | 1,056,254,147 |
| 2025-10-31 | 1.27 | 13,377,478 | 3.38 | -1,000,194 | -6.96 | 1,059,263,999 | 1,054,264,152 |
| 2025-10-15 | 1.36 | 14,377,672 | 1.95 | -1,903,881 | -11.69 | 1,059,263,999 | 1,054,264,152 |
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.