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QSI · Quantum-Si Inc

Track QSI — free
$1.28 -0.27 (-17.42%) At close · Oct 5
Market Cap
$182.61M
Shares
218.88M
Volume · Oct 5 19.19M Avg daily vol (3M) 3.93M

Price & Indicators

Drag to pan · scroll to zoom
20d MA 50d MA 200d MA Earnings Filing Insider Congress Investor day
Close$1.28 Open$1.53 Day$1.26–1.53 52W close$0.70–2.63 Avg vol 30d5.1M Short int13.0M · 6.0% float · 10.3d Short vol71% Last earningsAug 13, 2026 DataNov 2020–Oct 2026 Filing10-Q · Aug 13

Up next

Next earnings call
Nov 16, 2026 Est · unconfirmed · in 6 wks
filed Aug 13, 2026
call held Aug 13, 2026

Metrics snapshot

Useful current figures from the complete screener profile.

Revenue (TTM)
$1.60M
Trailing 12 months
Net income (TTM)
−$98.52M
Trailing 12 months
Revenue growth YoY
-41.8%
Year over year
Operating margin
-6,887.8%
Trailing 12 months
P / E (TTM)
—
Trailing earnings
FCF yield
—
TTM · current market cap
Return on invested capital
—
Trailing 12 months
Net cash
—
Latest balance sheet
Dividend yield
—
Trailing 12 months
Shares change YoY
+18.6%
Year over year · more shares
Price change (1Y)
+0.6%
Trailing year
Short interest
6.0%
Latest settlement · 10.3 days to cover
View all 115 metrics

AI Brief

Q2 FY26 earnings call · Aug 13, 2026
Q2 FY26

TL;DR. Quantum-Si pushed the Proteus launch from end of 2026 to Q2 2027 to add an extra integrated instrument design cycle, announced a ~20% workforce reduction expected to deliver ~$12M in annualized savings, and extended its cash runway into Q4 2028 while reiterating 2026 guidance.

Bullish
  • + Cash runway extended into Q4 2028 from Q2 2028 following cost actions
  • + Management identifies a >$4B non-human proteomics market opportunity for Proteus
  • + Strategic shift to application-oriented library prep kits expected to expand capabilities and reduce technical risk
  • + Net loss narrowed to $23.5M in Q2 2026 from $28.8M in Q2 2025
Bearish
  • − Proteus launch pushed from end of 2026 to Q2 2027 to add an extra instrument design cycle
  • − Q2 2026 revenue fell 42% YoY to $344K as Platinum-to-Proteus transition dampens demand
  • − Q2 2026 gross margin of 50% impacted by mix and transition-period commercial activity; H1 2026 gross margin was 41%

AI-generated from the earnings call and 8-K · may contain errors · not investment advice

Equibles Rating

blended score · not investment advice
Overall
Neutral
SellHoldBuy
Technical Buy Momentum Very Strong Sentiment Neutral Fundamentals Fair Quant / Vol Very High
Market backdrop VIX 15.5 · calm Equity put/call 0.59
Technical
price trend
Buy
50 / 200-day cross No cross
Price vs 200-day avg +35%
above
Price vs 50-day avg +57%
above
RSI (14) 67
neutral
MACD trend Positive
52-week position 30%
mid-range
Volume (OBV) Confirms
volume backs price
Momentum
relative strength
Very Strong
1-month return +67%
trailing
6-month return +52%
trailing
YTD return +16%
this year
Relative strength +41%
vs S&P · 6-mo
Sentiment
smart money
Neutral
Trend (MA cross) No cross
50d $1 › 200d $1 — 200d above 50d
Institutional flow Distributing
-11% holders QoQ · +26 funds added
Insider flow Distributing
Net -$39.4K over 90 days · 100% sells
Short interest Falling
5.96% of float · ▼ -9.7% MoM · 10.3 days cover
Volume signal Reversal watch
High volume on a down day — possible exhaustion
Institution breadth Steady
141 holders — mid 3-yr range
Squeeze score 96
high risk · 0–100
Fundamentals
Fair
Revenue growth −20%
Y/Y
Gross margin 47%
contracting
EPS growth +28%
Y/Y
Free cash flow $-97.2M
Quant / Vol
risk profile
Very High
Volatility 97%
annualized · 1-yr
Max drawdown −73%
past year
ATR 9.7%
of price · 14-day

Blended from price, momentum, positioning, fundamentals & volatility · daily-close · not investment advice. Market backdrop is context, not part of the score.

Guidance & track record

Latest guidance · from the Earnings Call filed Aug 13, 2026
annual
Annual operating expense savings $12M
full year 2026
Revenue Initiated $1M
prior FY $2.44M midpoint −58.9% Y/Y
Adjusted operating expenses Non-GAAP Initiated up to $98M
Total cash usage Initiated up to $93M
Guided vs delivered · last 1 settled
Revenue full year 2024
guided $3.7M – $4.2M
$3.06M Miss −22.6%

Guidance from company 8-Ks · delivered figures from as-reported statements · no analyst estimates involved.

Technicals

trend & momentum for long-term holders Buy
0 · 4 · 3
50 / 200-day cross
No cross Neutral
Price vs 200-day avg
+35% Bullish
Price vs 50-day avg
+57% Bullish
RSI (14)
67 Neutral
MACD trend
Positive Bullish
52-week position
30% Neutral
Volume (OBV)
Confirms Neutral
Market signals — smart money & positioning
Bearish · 2 of 6
Trend (MA cross) No cross
50d $1 › 200d $1 — 200d above 50d
Institutional flow Distributing
-11% holders QoQ · +26 funds added
Insider flow Distributing
Net -$39.4K over 90 days · 100% sells
Short interest Falling
5.96% of float · ▼ -9.7% MoM · 10.3 days cover
Volume signal Reversal watch
High volume on a down day — possible exhaustion
Institution breadth Steady
141 holders — mid 3-yr range
Price context
position in its 52-week range
Range low $1 Now $1 · 30% Range high $3
vs 200-day avg +35% vs 50-day avg +57%

Illustrative technical + ownership context — a signal mix, not investment advice.

Key metrics

the company's own KPIs, from written earnings releases and filings
Metric Latest Period YoY
Adjusted EBITDA non-GAAP -41.22M Six months ended June 30, 2026 —
Adjusted total operating expenses non-GAAP $43.9M six months ended June 30, 2026 —
EBITDA non-GAAP -46.41M Six months ended June 30, 2026 —
Reduction in force 20% second quarter of 2026 —

Figures exactly as the company stated them in writing · click a metric with a to chart its history · period links open the stating document · "filing" marks figures stated in the 10-K/10-Q · YoY needs an exactly comparable prior-year period

Versus peers

Medical Devices — same industry group
Open screener →
Company Mkt cap YTD Rev growth Y/Y P/E Short % shares
QSI
Quantum-Si Inc
this stock
$182.61M +40.9% -20.3% — 6.0%
ABT
Abbott Laboratories
$174.90B -20.1% +5.7% 28.1 1.1%
MDT
Medtronic plc
$113.38B -10.1% +8.4% 21.8 1.3%
SYK
Stryker Corp
$104.47B -21.6% +11.2% 28.2 2.0%
BSX
Boston Scientific Corp
$63.59B -55.3% +12.5% 17.8 3.2%

Peers by industry group · P/E from as-reported trailing EPS · short % is of shares outstanding

At a glance

key data from every section
Ownership
Institutional Holders Reducing
Holders
141
% held
24.6%
Net QoQ
-10.3M sh
Top holder
VANGUARD CAPITAL MANAGEME…
Held Float
View
Held by Funds
Fund positions
44
View
Short & Settlement
Short Interest Falling
Shares short
13.0M
Days to cover
10.3d
Change
-1.4M sh
View
Short Volume
Short vol %
71%
As of
Oct 5, 2026
Short Total
View
Fails to Deliver
FTD shares
5.0K
Value
$3.8K
As of
Sep 8, 2026
View
Off-Exchange
Off-exchange %
72.3%
Week of
Aug 31, 2026
Off-exch Lit
View
Smart Money
Insider Trades Net selling
Net (90d)
-$39.4K
Buyers / Sellers
0 / 3
Buyers Sellers
View
Financials
Financials
Revenue (FY)
$2.4M
Net income (FY)
$-101.3M
EPS diluted
$-0.51
View
Filings
SEC Filings
Latest
8-K
Filed
Sep 29, 2026
This year
12
View
Proposed Sales
Value
$11.0K
Shares
14.5K
Filed
Sep 23, 2026
View
Earnings & Events
Webcasts
Last webcast
Sep 15, 2026
View

Performance

5D 20D 120D MTD YTD
QSI +61.0% +67.1% +52.2% +19.6% +16.4%
SPY +1.2% +0.6% +11.6% +1.6% +13.6%
vs SPY +59.8% +66.5% +40.6% +18.0% +2.7%
Key facts CIK 1816431 CUSIP 74765K105 13F (30d) 2 filings 2 filers Visit website Investor relations