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LUNG · Pulmonx Corp · Short Interest

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$1.95 +0.12 (+6.56%) At close · Oct 26 Earnings today
Rebalance outlook locked
Market Cap
$83.75M
Shares
42.95M
Volume · Oct 26 641.55K Avg daily vol (3M) 492.6K

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 →

LUNG Latest Reported Short Interest

FINRA reported 698,644 LUNG shares sold short as of the October 15, 2026 settlement date, a decrease of 104,089 shares. Days to cover was 2.54 based on FINRA's reported average daily volume.

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

LUNG Short Interest Forecast

Equibles' model estimates 773,334 shares sold short for the October 30, 2026 settlement, +10.7% versus the latest reported position, with a likely range of 623,320 to 987,753 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 70% chance it rises
773,334 +10.7% vs reported
Likely range 623,320 to 987,753 The latest estimate appears in the chart below. Official release expected Nov 10. Methodology
Short Squeeze Score
58/100
Short interest 1.6% of shares — P45 Days to cover 2.5 — P41 Price vs VWAP -1.3% — P65 Short-volume trend -2.3% — P41 Short interest change -13.0% — P18 Worst FTD 0.13% of shares — P86 Earnings soon +10

Positioning score 48.0 + 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 2026-10-27 10:55 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
    		 — — — —
    2026-10-15 698,644 802,733 -104,089 2.54
    2026-09-30 802,733 847,842 -45,109 3.20
    2026-09-15 847,842 976,237 -128,395 2.51
    2026-08-31 976,237 1,066,574 -90,337 2.58
    2026-08-14 1,066,574 1,060,166 +6,408 1.18
    2026-07-31 1,060,166 1,056,246 +3,920 1.45
    2026-07-15 1,056,246 1,148,892 -92,646 4.64
    2026-06-30 1,148,892 2,263,505 -1,114,613 1.33
    2026-06-15 2,263,505 2,817,660 -554,155 7.21
    2026-05-29 2,817,660 2,700,321 +117,339 6.75
    2026-05-15 2,700,321 3,560,455 -860,134 4.76
    2026-04-30 3,560,455 2,814,748 +745,707 7.23
    2026-04-15 2,814,748 2,857,097 -42,349 13.69
    2026-03-31 2,857,097 3,299,976 -442,879 5.15
    2026-03-13 3,299,976 3,317,820 -17,844 3.11
    2026-02-27 3,317,820 3,280,138 +37,682 10.43
    2026-02-13 3,280,138 2,816,464 +463,674 8.53
    2026-01-30 2,816,464 2,633,184 +183,280 10.24
    2026-01-15 2,633,184 2,955,344 -322,160 7.05
    2025-12-31 2,955,344 3,086,595 -131,251 4.42
    2025-12-15 3,086,595 2,526,582 +560,013 2.59
    2025-11-28 2,526,582 2,036,874 +489,708 2.86
    2025-11-14 2,036,874 2,354,143 -317,269 1.47
    2025-10-31 2,354,143 1,418,511 +935,632 1.00

    Full FINRA short interest reporting calendar

    Showing 1–24 of 24 settlements
    Key facts CIK 1127537 CUSIP 745848101 13F (30d) 9 filings 9 filers Visit website Investor relations