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MSFT · Microsoft Corp · Short Interest

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$493.78 -3.97 (-0.80%) At close · Sep 18
S&P 500 member Nasdaq-100 member Russell 1000 member Dow 30 member Rebalance outlook locked
Market Cap
$3.67T
Shares
7.43B

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 →

MSFT Latest Reported Short Interest

FINRA reported 74,451,155 MSFT shares sold short as of the August 31, 2026 settlement date, an increase of 5,906,202 shares. Days to cover was 3.18 based on FINRA's reported average daily volume.

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

MSFT Short Interest Forecast

Equibles' model estimates 71,020,961 shares sold short for the September 15, 2026 settlement, -4.6% versus the latest reported position, with a likely range of 63,350,631 to 78,518,988 shares. This model prediction uses FINRA data through September 15, 2026; FINRA's official release is expected September 24, 2026.

Model estimate

Expected Sep 15 short interest

as of Sep 15 High confidence 74% chance it falls
71,020,961 -4.6% vs reported
Likely range 63,350,631 to 78,518,988 The latest estimate appears in the chart below. Official release expected Sep 24. Methodology
Short Squeeze Score
49/100
Short interest 1.0% of shares — P40 Days to cover 3.2 — P48 Price vs VWAP +14.9% — P93 Short-volume trend -6.0% — P27 Short interest change +8.6% — P69 Worst FTD 0.00% of shares — P30

Positioning score 49.5 + 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 (2026-08-31). 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 2026-09-20 12:37 UTC. Options model values may come from a cached snapshot; their original computation time is not supplied. Open interest has its own effective date.

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    • Short Interest History

    Settlement Date Current Position Previous Position Change Days to Cover
    2026-09-30 Scheduled
    FINRA publishes Oct 9
    		 — — — —
    2026-09-15 Scheduled
    FINRA publishes Sep 24
    		 — — — —
    2026-08-31 74,451,155 68,544,953 +5,906,202 3.18
    2026-08-14 68,544,953 81,311,791 -12,766,838 2.05
    2026-07-31 81,311,791 92,373,474 -11,061,683 2.03
    2026-07-15 92,373,474 89,063,316 +3,310,158 2.85
    2026-06-30 89,063,316 95,188,264 -6,124,948 1.47
    2026-06-15 95,188,264 88,696,120 +6,492,144 2.61
    2026-05-29 88,696,120 77,302,679 +11,393,441 2.41
    2026-05-15 77,302,679 79,107,882 -1,805,203 2.34
    2026-04-30 79,107,882 83,407,242 -4,299,360 2.12
    2026-04-15 83,407,242 80,991,357 +2,415,885 2.80
    2026-03-31 80,991,357 79,835,909 +1,155,448 2.31
    2026-03-13 79,835,909 74,347,979 +5,487,930 2.51
    2026-02-27 74,347,979 56,124,540 +18,223,439 2.31
    2026-02-13 56,124,540 58,407,538 -2,282,998 1.20
    2026-01-30 58,407,538 54,651,789 +3,755,749 1.34
    2026-01-15 54,651,789 52,944,379 +1,707,410 2.31
    2025-12-31 52,944,379 66,675,893 -13,731,514 2.54
    2025-12-15 66,675,893 61,948,927 +4,726,966 2.80
    2025-11-28 61,948,927 48,553,489 +13,395,438 2.38
    2025-11-14 48,553,497 52,549,516 -3,996,019 2.02
    2025-10-31 52,549,516 52,344,880 +204,636 2.32
    2025-10-15 52,344,880 54,926,474 -2,581,594 2.98
    2025-09-30 54,926,474 65,238,937 -10,312,463 2.65

    Full FINRA short interest reporting calendar

    Showing 1–23 of 23 settlements
    Key facts CIK 789019 CUSIP 594918104 13F (30d) 182 filings 87 filers Visit website Investor relations