Other US listings · IOBTQ · stock

IO Biotech, Inc. (IOBTQ) stock price history

Every Other US listings trading session of IO Biotech, Inc. from Nov 5, 2021 to Jul 17, 2026: 1,177 daily bars, adjusted for splits and dividends, with minute bars arriving as capture begins. The full series is served by the API: a free key covers the last year, paid plans the whole history and minute bars.

IOBTQ adjusted close, 2021 to 2026

IOBTQIO Biotech, Inc.
$0.0060-99.7% over one year
20222023202420252026
$15.65
All time high, 2021
$2.79
52 week high, $0.0010 low
1,177
Daily sessions since 2021

Last updated Jul 17, 2026, the last stored session. Refreshes after each trading day. Full 2021 to 2026 series and minute bars.

IOBTQ key facts

  • IO Biotech, Inc. (IOBTQ) closed at $0.0060 on Jul 17, 2026 on Other US listings.
  • IOBTQ's all time high close is $15.65, set on Nov 5, 2021; its all time low close is $0.0020 on May 27, 2026.
  • IOBTQ's 52 week range is $0.0010 to $2.79.
  • IOBTQ returned -99.7% over the year to Jul 17, 2026.
  • Since Nov 5, 2021 IOBTQ returned -100%, -81.3% a year compounded.
  • IOBTQ's deepest drawdown was -100.0% from Nov 5, 2021 to May 27, 2026.
  • DataCedar holds 1,177 daily sessions of IOBTQ history from Nov 5, 2021, adjusted for splits and dividends, served by the API under a key.

IOBTQ price chart, 2021 to 2026

IOBTQ adjusted close, Nov 5, 2021 to Jul 17, 2026$0.0030$0.0520$0.9024$15.65202120222023202420252026
Adjusted daily close, log scale. 260 sampled points across the full history; the API serves every session.

IOBTQ returns

Price return from the last close on or before the window start to Jul 17, 2026, on adjusted closes.

PeriodReturn
1 month0.0%
3 months+20.0%
6 months-98.8%
Year to date-99.0%
1 year-99.7%
3 years-99.7%
5 yearsn/a
10 yearsn/a
Since Nov 5, 2021-100.0%
Compound annual growth, 4.7 years-81.3%

IOBTQ records

Measured on the stored closes; every figure is reproducible from the API series.

All time high close
$15.65 on Nov 5, 2021
All time low close
$0.0020 on May 27, 2026
52 week high
$2.79 on Aug 18, 2025
52 week low
$0.0010 on May 27, 2026
Deepest drawdown
-100.0% from Nov 5, 2021 to May 27, 2026, not yet recovered
Best single session
+250.0% on Jun 4, 2026
Worst single session
-83.3% on Apr 7, 2026
Volatility, 1 year annualised
386.1%
Sessions closing higher, 1 year
34%
Best calendar year
2023, -18%
Worst calendar year
2022, -64%

IOBTQ price history by year

Open is the first session's open, high and low span the year, close is the last session's close, and the return is close over the previous year's close. 2021 starts on Nov 5, 2021; 2026 runs to Jul 17, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026$0.6120$0.6960$0.0010$0.0060-99.0%1.3B135
2025$0.9500$2.79$0.3230$0.6090-33.8%459.5M250
2024$1.87$2.10$0.6600$0.9200-51.1%66.5M252
2023$2.30$3.30$0.8160$1.88-18.3%30.8M250
2022$6.57$9.77$2.15$2.30-64.1%12.3M251
2021$16.00$17.88$6.02$6.40n/a8.6M39

IOBTQ monthly closes, last 12 months

MonthMonth end closeChange
July 2026$0.00600.0%
June 2026$0.0060+100.0%
May 2026$0.0030-40.0%
April 2026$0.0050-91.5%
March 2026$0.0590-83.1%
February 2026$0.3490+20.3%
January 2026$0.2900-52.4%
December 2025$0.6090-15.4%
November 2025$0.7200-30.8%
October 2025$1.04+186.5%
September 2025$0.3630-77.0%
August 2025$1.58-29.1%

About the IOBTQ data

Daily bars. 1,177 sessions from Nov 5, 2021 to Jul 17, 2026, one row per Other US listings trading day with open, high, low, close and volume. Prices are adjusted for splits and cash dividends so the series is comparable across its whole length; the API also serves the raw, split only and dividend only views.

Minute bars. Not stored for this listing yet. Minute history is captured forward from the day collection begins for a symbol and is never backfilled.

Time and currency. Session dates are Other US listings trading days; minute timestamps are UTC. Prices are in USD. Volume is shares traded on the session.

Get the data. The REST endpoint returns the daily series as JSON with pagination; a free key serves the last year, Quant and above the full history back to Nov 5, 2021, and minute bars come with the paid windows. It takes timeframe (1Min, 5Min, 15Min, 1Hour, 1Day), adjustment, start and end. See the bars endpoint and authentication, and pricing for the plan windows.

curl "https://api.datacedar.com/v3/stocks/IOBTQ/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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Common questions

IOBTQ share price history

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