What is the 13F Pro Quality Score for QSI?

13F Pro ranks Quantum-Si Inc (QSI) on the 13F Pro Quality Score, a 0–100 composite of 32 fundamental signals including return on invested capital, free cash flow consistency, balance-sheet strength, earnings quality, growth durability, and valuation discipline. The score refreshes after each 10-K and 10-Q filing on SEC EDGAR. View QSI's current score at https://13fpro.ai/research/QSI (free sign-up required for the full ranking).

Where does 13F Pro source QSI data?

All Quantum-Si Inc fundamentals and ownership data come directly from SEC EDGAR. Quantum-Si Inc files with the SEC under CIK 1816431. 13F Pro ingests XBRL financial facts from 10-K and 10-Q filings, Form 13F-HR institutional holdings, and Form 4 insider transactions, with no third-party rewrites or estimates.

What sector is QSI in?

Quantum-Si Inc (QSI) is classified in the Technology sector. 13F Pro publishes sector-level fund flow analysis and quality leaders at https://13fpro.ai/research/sector/technology.

How often is QSI research updated on 13F Pro?

QSI's fundamentals refresh within hours of each new 10-K or 10-Q filing on SEC EDGAR. Institutional ownership updates after each quarterly 13F filing window. Insider transactions update after each Form 4 filing. The 13F Pro Quality Score recalculates after every fundamentals refresh.

Quantum-Si Inc(QSI)Stock Analysis

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13F Pro Quality Score

21.2/100

Rank #2,662 of 2,879 stocks

View Technology peers →

Rankings refresh quarterly once 80% of peers have filed (~45 days after quarter-end). Next update: ~Aug 14, 2026.

Revenue Growth

90.6/100

Profitability

0.9/100

Balance Sheet

4.2/100

Earnings Quality

30.0/100

Free Cash Flow

0.7/100

Institutional Flow

9.7/100

Revenue Scale

1.1/100

Dilution Risk

1.1/100

QSI Stock Analysis & AI Quality Score

AI stock analysis and institutional research for Quantum-Si Inc (QSI), a Technology sector company. 13F Pro's AI-powered ranking engine scores QSI at 21.2/100 on a 32-signal composite quality model, placing it at rank #2,662 of 2,879 stocks — the bottom half of the AI-ranked universe. QSI scores in the top quartile across revenue growth (90.6). Areas of concern include free cash flow (0.7) and profitability (0.9), which score below median versus the broader universe. Shareholder dilution risk is elevated at 1.1/100, reflecting ongoing share issuance or stock-based compensation. Based on the latest XBRL financial filings (Q1 2026), Quantum-Si Inc reports quarterly revenue of $258.0K, net income of $-21.7M, free cash flow of $-25.9M. Top institutional holders of QSI by reported 13-F value include EverSource Wealth Advisors,, BlackRock,, VANGUARD CAPITAL MANAGEMENT, based on the most recent SEC filings. QSI trades on the Nasdaq exchange and files with the SEC under CIK 1816431. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate QSI daily and publish AI-generated analysis with cited SEC sources. The platform aggregates historical XBRL financial facts, 10-Q and 10-K filings, insider Form 4 transactions, and institutional 13-F holdings for Quantum-Si Inc directly from SEC EDGAR. Quantum-Si Inc's 13F Pro composite quality score has ranged between 14 and 31 since 2024, currently 21.2 — an improving long-term trajectory across 16 quarterly and live scoring snapshots.

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Fun facts about Quantum-Si Inc

Quirks, history, and lore behind QSI — the kind of stuff that makes a stock memorable.

1
The Basics
U.S. life-science technology company · small-cap · listed on Nasdaq · headquartered in Connecticut.
2
The Numbers
Revenue is still in the early millions — this is a pre-profitability, commercialization-stage company burning cash as it tries to crack a massive market.
3
The History
Founded around 2013 and backed by venture capital before going public via a SPAC merger in the early 2020s.
4
The Secret
Its core technology aims to sequence individual protein molecules in real time — think DNA sequencing, but for the proteome, which is far harder.
5
The Lore
The company was co-founded with ties to Jonathan Rothberg, the serial entrepreneur who also helped birth Ion Torrent and next-generation DNA sequencing.
6
The Giveaway
Its flagship instrument is a semiconductor chip-based protein sequencer — and its ticker is two letters that scream both quantum and silicon.

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Revenue

Q1 2026

$258.0K

Net Income

Q1 2026

$-21.7M

Free Cash Flow

Q1 2026

$-25.9M

Revenue & Net Income

Earnings Per Share

Key Financials Over Time

Export Financial Table · Pro+

Revenue

-20.3% YoY

$2.4MFY 2025

FY20 —FY22 $0.00FY24 $3.1MFY25 $2.4M

Net Income

-0.3% YoY

$-101.3MFY 2025

FY20 $-36.6MFY22 $-132.4MFY24 $-101.0MFY25 $-101.3M

Operating Income

-6.9% YoY

$-116.1MFY 2025

FY20 $-36.7MFY22 $-123.8MFY24 $-108.6MFY25 $-116.1M

EPS (Diluted)

+28.2% YoY

$-0.51FY 2025

FY20 $-6.84FY22 $-0.95FY24 $-0.71FY25 $-0.51

Total Assets

-0.9% YoY

$245.6MFY 2025

FY20 $116.2MFY22 $391.5MFY24 $247.9MFY25 $245.6M

Op. Cash Flow

-7.9% YoY

$-94.7MFY 2025

FY20 $-32.6MFY22 $-90.6MFY24 $-87.8MFY25 $-94.7M

Metric	FY 2025	FY 2024	FY 2022	FY 2020	FY 2019	FY 2018
Revenue	$2.4M -20.3%	$3.1M	$0.00	—	—	—
Net Income	$-101.3M -0.3%	$-101.0M +23.7%	$-132.4M -261.7%	$-36.6M -2.3%	$-35.8M	—
Operating Income	$-116.1M -6.9%	$-108.6M +12.3%	$-123.8M -237.5%	$-36.7M -0.2%	$-36.6M	—
EPS (Diluted)	$-0.51 +28.2%	$-0.71 +25.3%	$-0.95 +86.1%	$-6.84 +1.6%	$-6.95	—
Total Assets	$245.6M -0.9%	$247.9M -36.7%	$391.5M +236.9%	$116.2M	—	—
Operating Cash Flow	$-94.7M -7.9%	$-87.8M +3.1%	$-90.6M -178.0%	$-32.6M -6.1%	$-30.7M	—

AI Insight: QSI Financial Trends

QSI burns cash at ~$20–32M per quarter with revenue effectively flat at $0–1M, raising runway concerns as equity erodes to $201M in Q1 2026.

• Revenue has remained stuck at $0–1M across all eight quarters from Q2 2024 through Q1 2026 — zero commercial traction.

• Operating losses worsened to -$40M in Q3 2025, the worst in the period, before partially recovering to -$21M in Q4 2025.

• Equity declined from $247M in Q1 2025 to $201M in Q1 2026, a $46M erosion in four quarters.

⚠ Operating cash outflow surged to -$32M in Q3 2025; at that pace, the $201M equity base implies limited runway without new capital.

⚠ No debt reported across all periods — watch for any debt issuance signaling balance-sheet stress or dilutive equity raises.

AI Insight: QSI Ratio Trends

QSI's return metrics remain deeply negative across all periods, with no sustained improvement trend visible through Q1 2026.

• ROIC has fluctuated between -40.7% and -67.7% since Q2 2024, with no consistent directional improvement.

• ROA in Q1 2026 stood at -40.6%, worse than the Q1 2025 reading of -28.3%, suggesting year-over-year deterioration.

• ROE swung from -60.7% in Q3 2025 to -32.0% in Q4 2025, then back to -43.2% in Q1 2026 — volatile with no clear trend.

⚠ OpMargin, NPM, and D/E are entirely absent across all periods — critical gaps limiting fundamental assessment.

⚠ TTM ROIC of -57.3% is worse than five of the eight individual quarters shown, signaling persistent capital destruction.

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Available Research

13F Pro tracks comprehensive data for Quantum-Si Inc including:

SEC EDGAR filings (10-K, 10-Q, 8-K)

XBRL financial facts (revenue, EPS, margins)

Insider transactions (Form 4)

Institutional 13F holdings

Quality rankings (32 signals)

AI analyst debates & daily meetings

Historical financial trends

Peer comparison & sector analysis

Top Institutional Holders of QSI

EverSource Wealth Advisors, LLC
$24.4M627,081 sh
BlackRock, Inc.
$10.4M13,414,949 sh
VANGUARD CAPITAL MANAGEMENT LLC
$5.4M7,021,907 sh
ARK Investment Management LLC
$5.3M6,878,899 sh
Nikko Asset Management Americas, Inc.
$3.4M4,391,666 sh
Sumitomo Mitsui Trust Holdings, Inc.
$3.4M4,391,666 sh
GEODE CAPITAL MANAGEMENT, LLC
$3.0M3,835,121 sh
STATE STREET CORP
$2.9M3,770,689 sh
AQR CAPITAL MANAGEMENT LLC
$1.9M2,392,179 sh
UBS Group AG
$1.3M1,702,527 sh

Fund	Value	Shares
EverSource Wealth Advisors, LLC	$24.4M	627,081
BlackRock, Inc.	$10.4M	13,414,949
VANGUARD CAPITAL MANAGEMENT LLC	$5.4M	7,021,907
ARK Investment Management LLC	$5.3M	6,878,899
Nikko Asset Management Americas, Inc.	$3.4M	4,391,666
Sumitomo Mitsui Trust Holdings, Inc.	$3.4M	4,391,666
GEODE CAPITAL MANAGEMENT, LLC	$3.0M	3,835,121
STATE STREET CORP	$2.9M	3,770,689
AQR CAPITAL MANAGEMENT LLC	$1.9M	2,392,179
UBS Group AG	$1.3M	1,702,527

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Is QSI a good stock to buy?

13F Pro's AI-powered analysis of Quantum-Si Inc (QSI) draws on SEC EDGAR-sourced fundamentals, institutional 13F holdings, and insider Form 4 transactions in the Technology sector (listed on Nasdaq). The 32-signal AI Quality Score, current rank, and full bull/bear verdict for QSI are available on the QSI stock profile dashboard — with the same data, AI insights, ratios, and institutional activity refreshed after every 10-K, 10-Q, 13F, and Form 4 filing.

Which hedge funds own QSI?

Institutional investors are required to disclose their holdings quarterly via SEC Form 13F. 13F Pro aggregates these filings to show which hedge funds, mutual funds, and asset managers are buying or selling QSI. Combined with insider transaction data from Form 4 filings and AI-powered analysis from 10 specialized research agents, 13F Pro provides a comprehensive view of Quantum-Si Inc's investment landscape.