QuantumSi Inc

NASDAQ:QSI USA Medical Devices
Market Cap
$182.72 Million
Market Cap Rank
#15979 Global
#6206 in USA
Share Price
$0.93
Change (1 day)
-1.41%
52-Week Range
$0.86 - $2.63
All Time High
$22.41
About

Quantum-Si incorporated, a life sciences company, develops proprietary, universal, and single-molecule detection platform applied to proteomics to enable next-gen protein sequencing (NGPS). The company offers Platinum and Platinum Pro NGPS instruments for single-molecule, amino acid level resolution, and automated data analysis; library preparation kits to prepare a customer's protein sample for … Read more

Market Cap & Net Worth: QuantumSi Inc (QSI)

QuantumSi Inc (NASDAQ:QSI) has a market capitalization of $182.72 Million ($182.72 Million) as of March 18, 2026. Listed on the NASDAQ stock exchange, this USA-based company holds position #15979 globally and #6206 in its home market, demonstrating a 0.46% increase in market value over the past year.

Market capitalization, also known as net worth in stock markets, is calculated by multiplying QuantumSi Inc's stock price $0.93 by its total outstanding shares 196431273 (196.43 Million).

QuantumSi Inc Market Cap History: 2020 to 2026

QuantumSi Inc's market capitalization history from 2020 to 2026. Data shows change from $1.99 Billion to $182.72 Million (-35.74% CAGR).

Index Memberships

QuantumSi Inc is a constituent of 2 market indices:

Index Total Market Cap Weight (%) Rank by Market Cap
NASDAQ Health Care
IXHC
$2.24 Trillion 0.01% #429 of 976
NASDAQ Composite
IXIC
$33.39 Trillion 0.00% #1510 of 3165

Weight: QuantumSi Inc's market cap as a percentage of total index value. Rank: Position among all constituents by market cap.

QuantumSi Inc Market Cap to Earnings & Revenue Ratios Timeline

This chart shows how QuantumSi Inc's valuation ratios have evolved. The Price to Sales (P/S) ratio compares market cap to revenue, while the Price to Earnings (P/E) ratio compares market cap to net income. Lower values may indicate a more undervalued company relative to its financial performance.

Latest Price to Sales (P/S) Ratio

88.70x

QuantumSi Inc's market cap is 88.70 times its annual revenue

Industry average:
0.67x
Higher than industry average

Latest Price to Earnings (P/E) Ratio

N/A

P/E ratio not applicable due to negative or zero earnings

What These Ratios Tell Investors:
  • Price to Sales (P/S) Ratio: Shows how much investors are paying for each dollar of the company's sales. Lower P/S ratios may indicate undervaluation.
  • Price to Earnings (P/E) Ratio: Shows how much investors are paying for each dollar of the company's earnings. This is one of the most common valuation metrics.
  • Trends in these ratios over time can indicate changing investor sentiment about the company's future growth prospects.
  • Industry comparison provides context for whether the company is valued higher or lower than peers.
Year Market Cap (USD) Revenue (USD) Net Income (USD) P/S Ratio P/E Ratio
2022 $359.47 Million $459.00K -$132.44 Million 783.16x N/A
2023 $394.83 Million $1.08 Million -$95.96 Million 364.90x N/A
2024 $530.36 Million $3.06 Million -$101.01 Million 173.44x N/A
2025 $216.07 Million $2.44 Million -$101.34 Million 88.70x N/A

Competitor Companies of QSI by Market Capitalization

Companies near QuantumSi Inc in the global market cap rankings as of March 18, 2026.

Key companies related to QuantumSi Inc by market ranking:

  • Abbott Laboratories (NYSE:ABT): Ranked #78 globally with a market cap of $191.37 Billion USD.
  • Stryker Corporation (NYSE:SYK): Ranked #154 globally with a market cap of $121.03 Billion USD.
  • Medtronic PLC (NYSE:MDT): Ranked #168 globally with a market cap of $113.17 Billion USD.
  • Boston Scientific Corp (NYSE:BSX): Ranked #185 globally with a market cap of $105.26 Billion USD.

Market capitalization comparison (in billions USD)
Rank Company Symbol Market Cap Price
#78 Abbott Laboratories NYSE:ABT $191.37 Billion $110.71
#154 Stryker Corporation NYSE:SYK $121.03 Billion $349.11
#168 Medtronic PLC NYSE:MDT $113.17 Billion $88.44
#185 Boston Scientific Corp NYSE:BSX $105.26 Billion $71.20

QuantumSi Inc Historical Marketcap From 2020 to 2026

Between 2020 and today, QuantumSi Inc's market cap moved from $1.99 Billion to $ 182.72 Million, with a yearly change of -35.74%.

Year Market Cap Change (%)
2026 $182.72 Million -15.44%
2025 $216.07 Million -59.26%
2024 $530.36 Million +34.33%
2023 $394.83 Million +9.84%
2022 $359.47 Million -76.75%
2021 $1.55 Billion -22.46%
2020 $1.99 Billion --

End of Day Market Cap According to Different Sources

On Mar 18th, 2026 the market cap of QuantumSi Inc was reported to be:

Source Market Cap
Yahoo Finance $182.72 Million USD
MoneyControl $182.72 Million USD
MarketWatch $182.72 Million USD
marketcap.company $182.72 Million USD
Reuters $182.72 Million USD

Market cap values may vary slightly between sources due to differences in calculation methods, timing, and data refresh rates.