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Equibles

ARM · Arm Holdings PLC · Short Interest

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$229.40 +2.80 (+1.24%) Q1 2027 earnings call transcript
Nasdaq-100 member Rebalance outlook locked
Market Cap
$251.94B
Shares
1.07B
Volume · Oct 28 3.9M Avg daily vol (3M) 5.04M

Shares sold short and not yet covered, reported twice monthly. Days to cover is the reported short position divided by average daily volume.

Pull short interest history through the short interest API or MCP →

ARM Latest Reported Short Interest

FINRA reported 17,701,475 ARM shares sold short as of the October 15, 2026 settlement date, an increase of 1,511,510 shares. Days to cover was 3.75 based on FINRA's reported average daily volume.

Official FINRA short-interest data · share counts are restated for subsequent splits of this listing

ARM Short Interest Forecast

Equibles' model estimates 17,691,443 shares sold short for the October 30, 2026 settlement, -0.1% versus the latest reported position, with a likely range of 15,846,410 to 19,637,061 shares. This model prediction uses FINRA data through October 28, 2026; FINRA's official release is expected November 10, 2026.

Model estimate

Expected Oct 30 short interest

as of Oct 28 Low confidence 58% chance it falls
17,691,443 -0.1% vs reported
Likely range 15,846,410 to 19,637,061 The latest estimate appears in the chart below. Official release expected Nov 10. Methodology
Short Squeeze Score
48/100
Short interest 1.7% of shares — P45 Days to cover 3.8 — P54 Price vs VWAP -10.8% — P33 Short-volume trend -1.4% — P44 Short interest change +9.3% — P76 Worst FTD 0.00% of shares — P42

Positioning score 47.8 + catalyst boost 0 (total capped at 100). This is a screening index, not a probability of a squeeze.

Method and coverage limits

Factor percentiles compare eligible primary operating-company stocks reporting short interest at the latest settlement date (2026-10-15). The weighted mean uses short interest 30%, days to cover 20%, price vs VWAP 15%, short-volume trend 15%, short-interest change 10%, and fails-to-deliver 10%. Missing factors redistribute their weight; incomplete coverage is not evidence of low risk. Price, volume, and earnings boosts add 10 each, capped at 20.

Shares outstanding are not free float. Borrow fees, utilization, lendable supply, recalls, and dealer inventory are not measured. Short-sale volume does not measure the change in open shorts; fails to deliver are not a borrow-cost measurement; price vs VWAP does not establish short sellers' entry prices. Earnings can move prices in either direction.

The weights are judgment-based, not calibrated to future squeeze outcomes. The separate options assessment below does not change this universe ranking.

Options positioning & squeeze sensitivity

Nearest expiration after today within 30 calendar days; same-day expirations and later maturities are excluded.

Open interest is incomplete, stale, or dated inconsistently; positioning totals are unavailable.

Open interest has both a buyer and a seller; it does not reveal dealer hedge direction. Gross gamma sums both calls and puts without netting and uses a local 1% price-change approximation. It measures sensitivity, not predicted buying or a squeeze probability.

Assessment prepared 2026-10-28 22:45 UTC. Options model values may come from a cached snapshot; their original computation time is not supplied. Open interest has its own effective date.

1M 3M 6M 1Y 5Y All
Dimensions
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    • Short Interest History

    Settlement Date Current Position Previous Position Change Days to Cover
    2026-11-13 Scheduled
    FINRA publishes Nov 24
    		 — — — —
    2026-10-30 Scheduled
    FINRA publishes Nov 10
    		 — — — —
    2026-10-15 17,701,475 16,189,965 +1,511,510 3.75
    2026-09-30 16,189,965 15,521,694 +668,271 2.30
    2026-09-15 15,521,694 16,740,615 -1,218,921 3.94
    2026-08-31 16,740,615 18,264,105 -1,523,490 4.39
    2026-08-14 18,264,105 16,867,253 +1,396,852 4.12
    2026-07-31 16,867,253 17,460,573 -593,320 2.65
    2026-07-15 17,460,573 17,227,301 +233,272 2.92
    2026-06-30 17,227,301 16,369,236 +858,065 1.48
    2026-06-15 16,369,236 18,511,799 -2,142,563 1.27
    2026-05-29 18,511,799 18,788,059 -276,260 1.43
    2026-05-15 18,788,059 16,114,440 +2,673,619 1.67
    2026-04-30 16,114,440 15,953,489 +160,951 1.53
    2026-04-15 15,953,489 15,447,396 +506,093 2.63
    2026-03-31 15,447,396 14,699,957 +747,439 1.53
    2026-03-13 14,711,957 14,825,255 -113,298 4.16
    2026-02-27 14,825,255 17,139,566 -2,314,311 4.31
    2026-02-13 17,139,566 15,344,152 +1,795,414 1.84
    2026-01-30 15,344,152 17,380,246 -2,036,094 2.10
    2026-01-15 17,380,246 15,534,170 +1,846,076 3.08
    2025-12-31 15,534,170 13,950,076 +1,584,094 2.97
    2025-12-15 13,950,076 14,206,776 -256,700 4.73
    2025-11-28 14,206,776 13,291,416 +915,360 3.82
    2025-11-14 13,291,416 13,377,478 -86,062 2.91
    2025-10-31 13,377,478 14,377,672 -1,000,194 3.38

    Full FINRA short interest reporting calendar

    Showing 1–24 of 24 settlements
    Key facts CIK 1973239 CUSIP 042068205 13F (30d) 269 filings 261 filers Visit website Investor relations