What percent of QSI is sold short?

50.9% of Quantum-Si (QSI) trading volume was short last week. Track days-to-cover and borrow rate against insider and hedge fund flow.

Is QSI a short squeeze candidate?

Compare short volume, days-to-cover, and borrow rate to insider buying — when insiders accumulate against heavy short interest, the squeeze setup gets stronger.

How is short volume different from short interest?

Short volume is daily shorting activity reported by FINRA; short interest is the bi-monthly snapshot of outstanding short positions. We track both for Quantum-Si (QSI).

QSI Short Volume Hit 50.9%

Also trades as: QSIAW (NASDAQ) · $vol 0M

$1.55

+0.12 (+8.39%)

Weekly Expected Move ±20.5%

$1 $1 $2 $2 $2

NASDAQ · Healthcare · Medical - Devices · Tech Score Buy · Power 62 · $306.6M mcap · 170M float · 2.44% daily turnover · Short 53% of daily vol

Short Volume Summary

2026-10-01

46.4%

Short Ratio

of total volume

54.5%

20-Day Avg

55.7%

50-Day Avg

▲ Rising

5-Day Trend

9.4M

Short Volume

20.3M

Total Volume

Daily Short Volume Ratio

Short Volume vs Total Volume

Exchange Breakdown

2026-10-01

Exchange	Short Volume	Total Volume	Short %
NASDAQ	8,785,807	18,664,351	47.1%
NYSE	552,467	1,461,487	37.8%
BATS	52,092	129,852	40.1%

QSI Short Interest

Short Volume Summary

Daily Short Volume Ratio

Short Volume vs Total Volume

Exchange Breakdown

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