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FTNT · Fortinet, Inc. · Short Interest

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$178.72 -0.04 (-0.02%) At close · Oct 1
S&P 500 member Nasdaq-100 member Russell 1000 member Rebalance outlook locked
Market Cap
$127.27B
Shares
733.71M
Volume · Oct 1 2.96M Avg daily vol (3M) 4.7M

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 →

FTNT Latest Reported Short Interest

FINRA reported 13,718,909 FTNT shares sold short as of the September 15, 2026 settlement date, an increase of 161,916 shares. Days to cover was 3.53 based on FINRA's reported average daily volume.

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

FTNT Short Interest Forecast

Equibles' model estimates 14,048,856 shares sold short for the September 30, 2026 settlement, +2.4% versus the latest reported position, with a likely range of 12,491,403 to 15,747,257 shares. This model prediction uses FINRA data through September 30, 2026; FINRA's official release is expected October 9, 2026.

Model estimate

Expected Sep 30 short interest

as of Sep 30 Low confidence 54% chance it rises
14,048,856 +2.4% vs reported
Likely range 12,491,403 to 15,747,257 The latest estimate appears in the chart below. Official release expected Oct 9. Methodology
Short Squeeze Score
55/100
Short interest 1.9% of shares — P47 Days to cover 3.5 — P50 Price vs VWAP +10.3% — P92 Short-volume trend +5.0% — P66 Short interest change +1.2% — P50 Worst FTD 0.00% of shares — P16

Positioning score 54.6 + 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 (2026-09-15). 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 2026-10-02 07:15 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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Dimensions
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    • Short Interest History

    Settlement Date Current Position Previous Position Change Days to Cover
    2026-10-15 Scheduled
    FINRA publishes Oct 26
    		 — — — —
    2026-09-30 Scheduled
    FINRA publishes Oct 9
    		 — — — —
    2026-09-15 13,718,909 13,556,993 +161,916 3.53
    2026-08-31 13,556,993 14,198,087 -641,094 3.05
    2026-08-14 14,198,087 14,384,628 -186,541 3.02
    2026-07-31 14,384,628 14,492,724 -108,096 2.45
    2026-07-15 14,492,724 15,056,605 -563,881 3.13
    2026-06-30 15,056,605 18,802,691 -3,746,086 1.98
    2026-06-15 18,802,691 16,866,836 +1,935,855 2.89
    2026-05-29 16,866,836 19,647,622 -2,780,786 2.75
    2026-05-15 19,647,622 19,090,539 +557,083 2.83
    2026-04-30 19,090,539 19,357,643 -267,104 3.95
    2026-04-15 19,357,643 18,901,077 +456,566 3.14
    2026-03-31 18,901,077 19,147,172 -246,095 2.92
    2026-03-13 19,147,172 17,699,855 +1,447,317 3.38
    2026-02-27 17,699,855 16,939,807 +760,048 3.01
    2026-02-13 16,939,807 17,595,538 -655,731 1.87
    2026-01-30 17,595,538 20,072,333 -2,476,795 2.74
    2026-01-15 20,072,333 20,930,180 -857,847 3.15
    2025-12-31 20,930,180 23,558,764 -2,628,584 3.55
    2025-12-15 23,558,764 22,715,240 +843,524 4.57
    2025-11-28 22,715,240 20,482,617 +2,232,623 4.53
    2025-11-14 20,482,617 21,065,832 -583,215 3.06
    2025-10-31 21,065,832 20,327,870 +737,962 5.02
    2025-10-15 20,327,870 20,862,566 -534,696 4.60

    Full FINRA short interest reporting calendar

    Showing 1–23 of 23 settlements
    Key facts CIK 1262039 CUSIP 34959E109 13F (30d) 39 filings 25 filers Visit website Investor relations