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HYLN · Hyliion Holdings Corp. · Short Interest

Track HYLN — free
$2.95 -0.15 (-4.84%) At close · Oct 23
Market Cap
$526.86M
Shares
178.60M
Volume · Oct 23 1.7M Avg daily vol (3M) 2.28M

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

HYLN Latest Reported Short Interest

FINRA reported 15,282,391 HYLN shares sold short as of the September 30, 2026 settlement date, a decrease of 708,056 shares. Days to cover was 6.94 based on FINRA's reported average daily volume.

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

HYLN Short Interest Forecast

Equibles' model estimates 14,783,122 shares sold short for the October 15, 2026 settlement, -3.3% versus the latest reported position, with a likely range of 13,271,588 to 16,344,915 shares. This model prediction uses FINRA data through October 15, 2026; FINRA's official release is expected October 26, 2026.

Model estimate

Expected Oct 15 short interest

as of Oct 15 Low confidence 62% chance it falls
14,783,122 -3.3% vs reported
Likely range 13,271,588 to 16,344,915 The latest estimate appears in the chart below. Official release expected Oct 26. Methodology
Short Squeeze Score
58/100
Short interest 8.6% of shares — P85 Days to cover 6.9 — P83 Price vs VWAP -22.3% — P20 Short-volume trend -8.4% — P23 Short interest change -4.4% — P35 Worst FTD 0.02% of shares — P62

Positioning score 58.1 + 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 (2026-09-30). 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 2026-10-25 05:50 UTC. Options model values may come from a cached snapshot; their original computation time is not supplied. Open interest has its own effective date.

Short Interest History

Settlement Date Current Position Previous Position Change Days to Cover
2026-10-30 Scheduled
FINRA publishes Nov 10
— — — —
2026-10-15 Scheduled
FINRA publishes Oct 26
— — — —
2026-09-30 15,282,391 15,990,447 -708,056 6.94
2026-09-15 15,990,447 17,697,586 -1,707,139 10.50
2026-08-31 17,697,586 17,826,174 -128,588 7.40
2026-08-14 17,826,174 16,560,477 +1,265,697 4.26
2026-07-31 16,560,477 15,120,944 +1,439,533 5.92
2026-07-15 15,120,944 11,299,745 +3,821,199 5.38
2026-06-30 11,299,745 10,627,659 +672,086 1.79
2026-06-15 10,627,659 10,209,812 +417,847 1.62
2026-05-29 10,209,812 13,028,206 -2,818,394 1.25
2026-05-15 13,028,206 13,860,494 -832,288 3.86
2026-04-30 13,860,494 13,569,273 +291,221 18.88
2026-04-15 13,569,273 13,488,964 +80,309 18.78
2026-03-31 13,488,964 13,257,897 +231,067 12.69
2026-03-13 13,257,897 13,448,742 -190,845 12.35
2026-02-27 13,448,742 12,997,046 +451,696 12.69
2026-02-13 12,997,046 12,697,827 +299,219 13.14
2026-01-30 12,697,827 14,320,476 -1,622,649 15.20
2026-01-15 14,320,476 14,773,909 -453,433 15.76
2025-12-31 14,773,909 15,648,292 -874,383 11.64
2025-12-15 15,648,292 15,873,704 -225,412 18.43
2025-11-28 15,873,704 15,872,292 +1,412 13.48
2025-11-14 15,872,292 15,695,216 +177,076 7.78
2025-10-31 15,695,216 16,826,335 -1,131,119 8.24

Full FINRA short interest reporting calendar

Showing 1–23 of 23 settlements
Key facts CIK 1759631 CUSIP 449109107 13F (30d) 21 filings 21 filers Visit website Investor relations