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GATX · Gatx Corp · Short Interest

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$190.72 +4.93 (+2.65%) At close · Nov 4 Play latest call Q3 2026 earnings call transcript
S&P 400 member Russell 2000 member Rebalance outlook locked
Market Cap
$6.66B
Shares
34.90M
Volume · Nov 4 286.64K Avg daily vol (3M) 219.96K

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 →

GATX Latest Reported Short Interest

FINRA reported 2,028,744 GATX shares sold short as of the October 15, 2026 settlement date, a decrease of 155,230 shares. Days to cover was 9.08 based on FINRA's reported average daily volume.

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

GATX Short Interest Forecast

Equibles' model estimates 2,077,347 shares sold short for the October 30, 2026 settlement, +2.4% versus the latest reported position, with a likely range of 1,854,776 to 2,299,511 shares. This model prediction uses FINRA data through October 30, 2026; FINRA's official release is expected November 10, 2026.

Model estimate

Expected Oct 30 short interest

as of Oct 30 Low confidence 55% chance it falls
2,077,347 +2.4% vs reported
Likely range 1,854,776 to 2,299,511 The latest estimate appears in the chart below. Official release expected Nov 10. Methodology
Short Squeeze Score
82/100
Short interest 5.8% of shares — P75 Days to cover 9.1 — P87 Price vs VWAP +8.5% — P85 Short-volume trend +4.2% — P68 Short interest change -7.1% — P27 Worst FTD 0.03% of shares — P65 Price spike +10

Positioning score 72.2 + catalyst boost 10 (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 2026-11-05 10:37 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
    2026-11-13 Scheduled
    FINRA publishes Nov 24
    		 — — — —
    2026-10-30 Scheduled
    FINRA publishes Nov 10
    		 — — — —
    2026-10-15 2,028,744 2,183,974 -155,230 9.08
    2026-09-30 2,183,974 2,296,499 -112,525 7.17
    2026-09-15 2,296,499 2,049,670 +246,829 12.26
    2026-08-31 2,049,670 1,851,769 +197,901 11.06
    2026-08-14 1,851,769 1,694,094 +157,675 10.15
    2026-07-31 1,694,094 1,609,673 +84,421 6.88
    2026-07-15 1,609,673 1,335,820 +273,853 7.27
    2026-06-30 1,335,820 1,198,883 +136,937 4.21
    2026-06-15 1,198,883 970,214 +228,669 4.94
    2026-05-29 970,214 894,437 +75,777 5.27
    2026-05-15 894,437 853,834 +40,603 3.53
    2026-04-30 853,834 920,414 -66,580 4.59
    2026-04-15 920,414 945,018 -24,604 4.08
    2026-03-31 945,018 835,614 +109,404 4.60
    2026-03-13 835,614 851,479 -15,865 4.76
    2026-02-27 851,479 867,824 -16,345 3.08
    2026-02-13 867,824 799,278 +68,546 5.06
    2026-01-30 799,278 878,933 -79,655 3.33
    2026-01-15 878,933 887,441 -8,508 6.62
    2025-12-31 887,441 1,068,422 -180,981 5.48
    2025-12-15 1,068,422 880,636 +187,786 6.74
    2025-11-28 880,636 908,138 -27,502 5.21
    2025-11-14 908,138 972,814 -64,676 4.60

    Full FINRA short interest reporting calendar

    Showing 1–23 of 23 settlements
    Key facts CIK 40211 CUSIP 361448103 13F (30d) 165 filings 145 filers Visit website Investor relations