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MOS · Mosaic Co · Short Interest

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$17.71 -0.13 (-0.73%) At close · Oct 26
S&P 500 member Russell 1000 member Rebalance outlook locked
Market Cap
$5.67B
Shares
317.90M
Volume · Oct 26 11.61M Avg daily vol (3M) 8.9M

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 →

MOS Latest Reported Short Interest

FINRA reported 33,783,621 MOS shares sold short as of the October 15, 2026 settlement date, an increase of 3,789,400 shares. Days to cover was 3.31 based on FINRA's reported average daily volume.

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

MOS Short Interest Forecast

Equibles' model estimates 34,925,082 shares sold short for the October 30, 2026 settlement, +3.4% versus the latest reported position, with a likely range of 30,909,406 to 39,901,802 shares. This model prediction uses FINRA data through October 26, 2026; FINRA's official release is expected November 10, 2026.

Model estimate

Expected Oct 30 short interest

as of Oct 26 High confidence 65% chance it rises
34,925,082 +3.4% vs reported
Likely range 30,909,406 to 39,901,802 The latest estimate appears in the chart below. Official release expected Nov 10. Methodology
Short Squeeze Score
54/100
Short interest 10.6% of shares — P89 Days to cover 3.3 — P49 Price vs VWAP -19.9% — P23 Short-volume trend -15.0% — P10 Short interest change +12.6% — P79 Worst FTD 0.01% of shares — P47

Positioning score 54.0 + 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 2026-10-27 05:05 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
    2026-11-13 Scheduled
    FINRA publishes Nov 24
    		 — — — —
    2026-10-30 Scheduled
    FINRA publishes Nov 10
    		 — — — —
    2026-10-15 33,783,621 29,994,221 +3,789,400 3.31
    2026-09-30 29,994,221 30,890,497 -896,276 3.79
    2026-09-15 30,890,497 28,883,934 +2,006,563 3.54
    2026-08-31 28,883,934 29,005,945 -122,011 3.51
    2026-08-14 29,005,945 31,825,639 -2,819,694 3.77
    2026-07-31 31,825,639 29,645,570 +2,180,069 4.50
    2026-07-15 29,645,570 29,665,903 -20,333 3.68
    2026-06-30 29,665,903 23,828,993 +5,836,910 2.62
    2026-06-15 23,828,993 20,850,285 +2,978,708 2.53
    2026-05-29 20,850,285 19,529,219 +1,321,066 2.43
    2026-05-15 19,529,219 17,396,069 +2,133,150 2.15
    2026-04-30 17,396,069 18,340,920 -944,851 2.03
    2026-04-15 18,340,920 20,845,103 -2,504,183 2.18
    2026-03-31 20,845,103 21,242,907 -397,804 1.62
    2026-03-13 21,242,907 19,207,199 +2,035,708 1.66
    2026-02-27 19,207,199 18,519,390 +687,809 2.80
    2026-02-13 18,519,390 15,483,009 +3,036,381 3.11
    2026-01-30 15,483,009 15,524,661 -41,652 2.10
    2026-01-15 15,524,661 16,713,872 -1,189,211 2.02
    2025-12-31 16,713,872 17,990,959 -1,277,087 2.64
    2025-12-15 17,990,959 14,686,412 +3,304,547 2.17
    2025-11-28 14,686,412 14,337,719 +348,693 2.08
    2025-11-14 14,337,719 14,437,830 -100,111 1.73
    2025-10-31 14,437,830 12,399,023 +2,038,807 2.71

    Full FINRA short interest reporting calendar

    Showing 1–24 of 24 settlements
    Key facts CIK 1285785 CUSIP 61945C103 13F (30d) 143 filings 141 filers Visit website Investor relations