IO Biotech, Inc. (IOBTQ) Market Capitalization (2021 - 2025)
IO Biotech (IOBTQ) reported Market Capitalization of $25.09 million for Q3 2025, down 63.7% from $69.17 million a year earlier and down 72.6% from the prior quarter.
Powered by 
Analysis
IO Biotech, Inc. (IOBTQ) Market Capitalization (2021 - 2025) Analysis & Trends
For FY2024, IO Biotech posted Market Capitalization of $60.61 million, down 26.0% from FY2023.
- Market Capitalization has a three-year compound annual growth rate of 29.7% (FY2021 to FY2024).
- By year, Market Capitalization came in at $81.86 million in FY2023 (+23.5%), $66.28 million in FY2022 (+138.8%) and $27.75 million in FY2021.
- The Q3 2025 figure ranks as the lowest quarterly Market Capitalization in data going back to Q4 2021.
- Year over year, Market Capitalization gained in four of the last eight quarters, with growth averaging 7.5%.
- The high point for year-over-year Market Capitalization in five years was Q4 2022 (growth of 138.8%); the low point was Q1 2023 (a decline of 64.5%).
- Per Business Quant data, the three quarters before Q3 2025 came in at $91.57 million (Q2 2025), $71.81 million (Q1 2025) and $60.61 million (Q4 2024).
Peer Set
Peer Comparison
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Sep 30, 2025 | 25.09 Mn |
| Jun 30, 2025 | 91.57 Mn |
| Mar 31, 2025 | 71.81 Mn |
| Dec 31, 2024 | 60.61 Mn |
| Sep 30, 2024 | 69.17 Mn |
| Jun 30, 2024 | 77.08 Mn |
| Mar 31, 2024 | 113.97 Mn |
| Dec 31, 2023 | 81.86 Mn |
| Sep 30, 2023 | 70.74 Mn |
| Jun 30, 2023 | 56.48 Mn |
| Mar 31, 2023 | 54.17 Mn |
| Dec 31, 2022 | 66.28 Mn |
| Sep 30, 2022 | 78.09 Mn |
| Jun 30, 2022 | 134.57 Mn |
| Mar 31, 2022 | 152.72 Mn |
| Dec 31, 2021 | 27.75 Mn |
API Access
IO Biotech, Inc. Market Capitalization API
Pull this series into your own models, spreadsheets and apps with the Business Quant
Historical Metrics API. The request below matches the chart above — change the
frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.
https://data.businessquant.com/historic?slug=market-capitalization&ticker=IOBTQ&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "market-capitalization", "ticker": "IOBTQ", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=market-capitalization&ticker=IOBTQ&period=max&api_key=YOUR_API_KEY");
const data = await res.json();