Skip to main content
Equibles
QSI logo

QSI · Quantum-Si Inc · Short Interest

Track QSI — free

Use QSI with AI

Add company filings, earnings and prices to ChatGPT or Claude, then ask questions in your own chat.

Choose your app for step-by-step connection instructions. Sign in with Equibles when asked; no code or API key is needed.

Claude ChatGPT

After connecting, ask your AI to use Equibles to research QSI.

Other apps & server URL
https://mcp.equibles.com/mcp
Gemini CLI setup
or ask here

Free, nothing to set up — ALVIS runs on the same tools and cites every figure.

See what you can ask in ChatGPT or Claude

All connection guides →
$1.17 +0.01 (+0.86%)
Rebalance outlook locked
Market Cap
$238.58M
Shares
218.88M
Volume · Oct 20 6.18M Avg daily vol (3M) 5.27M

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 →

QSI Latest Reported Short Interest

FINRA reported 11,830,534 QSI shares sold short as of the September 30, 2026 settlement date, a decrease of 1,215,608 shares. Days to cover was 2.46 based on FINRA's reported average daily volume.

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

QSI Short Interest Forecast

Equibles' model estimates 11,842,557 shares sold short for the October 15, 2026 settlement, +0.1% versus the latest reported position, with a likely range of 8,184,047 to 15,519,586 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 49% chance it rises
11,842,557 +0.1% vs reported
Likely range 8,184,047 to 15,519,586 The latest estimate appears in the chart below. Official release expected Oct 26. Methodology
Short Squeeze Score
56/100
Short interest 5.4% of shares — P73 Days to cover 2.5 — P43 Price vs VWAP +2.7% — P82 Short-volume trend -5.6% — P31 Short interest change -9.3% — P26 Worst FTD 0.02% of shares — P62

Positioning score 56.2 + 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 2026-10-21 09:42 UTC. Options model values may come from a cached snapshot; their original computation time is not supplied. Open interest has its own effective date.

1M 3M 6M 1Y 5Y All
Dimensions
  • Add to chart

    • 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 11,830,534 13,046,142 -1,215,608 2.46
    2026-09-15 13,046,142 14,444,969 -1,398,827 10.32
    2026-08-31 14,444,969 14,273,563 +171,406 4.78
    2026-08-14 14,273,563 15,417,732 -1,144,169 4.68
    2026-07-31 15,417,732 14,129,789 +1,287,943 5.91
    2026-07-15 14,129,789 17,398,927 -3,269,138 4.24
    2026-06-30 17,398,927 22,514,122 -5,115,195 2.72
    2026-06-15 22,514,122 22,808,138 -294,016 3.40
    2026-05-29 22,808,138 23,252,541 -444,403 3.25
    2026-05-15 23,252,541 22,967,445 +285,096 3.88
    2026-04-30 22,967,445 22,939,577 +27,868 3.40
    2026-04-15 22,939,577 22,143,189 +796,388 5.57
    2026-03-31 22,143,189 21,512,748 +630,441 7.21
    2026-03-13 21,512,748 21,136,226 +376,522 5.19
    2026-02-27 21,136,226 21,342,481 -206,255 8.03
    2026-02-13 21,342,481 18,855,768 +2,486,713 4.23
    2026-01-30 18,855,768 19,325,866 -470,098 3.91
    2026-01-15 19,325,866 19,264,903 +60,963 3.65
    2025-12-31 19,264,903 19,324,219 -59,316 3.63
    2025-12-15 19,324,219 18,837,920 +486,299 4.74
    2025-11-28 18,837,920 15,785,926 +3,051,994 3.98
    2025-11-14 15,785,926 16,953,953 -1,168,027 2.13
    2025-10-31 16,953,953 19,939,017 -2,985,064 1.08

    Full FINRA short interest reporting calendar

    Showing 1–23 of 23 settlements
    Key facts CIK 1816431 CUSIP 74765K105 13F (30d) 11 filings 11 filers Visit website Investor relations