Other US listings · CYDY · stock

CytoDyn Inc. (CYDY) stock price history

Every Other US listings trading session of CytoDyn Inc. from Dec 13, 2006 to Jul 17, 2026: 4,927 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.

CYDY adjusted close, 2006 to 2026

CYDYCytoDyn Inc.
$0.2100-34.4% over one year
2010201520202025
$8.77
All time high, 2020
$0.4000
52 week high, $0.2100 low
4,927
Daily sessions since 2006

Last updated Jul 17, 2026, the last stored session. Refreshes after each trading day. Full 2006 to 2026 series and minute bars.

CYDY key facts

  • CytoDyn Inc. (CYDY) closed at $0.2100 on Jul 17, 2026 on Other US listings.
  • CYDY's all time high close is $8.77, set on Jun 29, 2020; its all time low close is $0.1100 on Nov 29, 2024.
  • CYDY's 52 week range is $0.2100 to $0.4000.
  • CYDY returned -34.4% over the year to Jul 17, 2026 and -85.2% over five years.
  • Over ten years CYDY returned -80%, -14.9% a year compounded.
  • CYDY's deepest drawdown was -98.7% from Jun 29, 2020 to Nov 29, 2024.
  • DataCedar holds 4,927 daily sessions of CYDY history from Dec 13, 2006, adjusted for splits and dividends, served by the API under a key.

CYDY price chart, 2006 to 2026

CYDY adjusted close, Dec 13, 2006 to Jul 17, 2026$0.1200$0.4575$1.74$6.652010201520202025
Adjusted daily close, log scale. 260 sampled points across the full history; the API serves every session.

CYDY returns

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

PeriodReturn
1 month-22.2%
3 months-43.2%
6 months-19.2%
Year to date-19.2%
1 year-34.4%
3 years-25.0%
5 years-85.2%
10 years-80.0%
Since Dec 13, 2006-72.0%
Compound annual growth, 19.6 years-6.3%

CYDY records

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

All time high close
$8.77 on Jun 29, 2020
All time low close
$0.1100 on Nov 29, 2024
52 week high
$0.4000 on Apr 17, 2026
52 week low
$0.2100 on Mar 9, 2026
Deepest drawdown
-98.7% from Jun 29, 2020 to Nov 29, 2024, not yet recovered
Best single session
+142.9% on Aug 11, 2009
Worst single session
-66.7% on Jun 25, 2008
Volatility, 1 year annualised
68.5%
Sessions closing higher, 1 year
27%
Best calendar year
2020, +439%
Worst calendar year
2021, -82%

CYDY 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. 2006 starts on Dec 13, 2006; 2026 runs to Jul 17, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026$0.3000$0.4000$0.2100$0.2100-25.0%250.7M135
2025$0.1200$0.4900$0.1100$0.2800+154.5%612.6M250
2024$0.1900$0.3200$0.1000$0.1100-45.0%648.3M252
2023$0.2200$0.4800$0.1500$0.2000-13.0%427.8M250
2022$1.01$1.26$0.1500$0.2300-76.8%595.3M251
2021$5.69$7.40$0.9600$0.9900-81.6%777.3M252
2020$1.00$10.01$0.7700$5.39+439.0%1.4B253
2019$0.4800$1.18$0.0600$1.00+112.8%184.9M252
2018$0.5700$0.8400$0.4000$0.4700-14.5%70.7M251
2017$0.6700$0.8400$0.4600$0.5500-17.9%48.7M251
2016$0.7500$1.57$0.6100$0.6700-13.0%68.1M252
2015$1.15$1.15$0.6300$0.7700-33.0%20.6M252
2014$1.00$1.30$0.5400$1.15+9.5%15.2M252
2013$1.25$1.50$0.4100$1.05-22.8%6.4M252
2012$3.00$3.20$0.6200$1.36-54.5%9.4M250
2011$2.25$4.45$1.50$2.99+32.9%5.7M252
2010$1.76$2.29$0.6000$2.25+31.6%2.5M252
2009$0.4200$2.00$0.1100$1.71+307.1%1.4M252
2008$0.2900$1.10$0.1300$0.4200+44.8%1.3M253
2007$0.7000$0.9000$0.1100$0.2900-58.6%649.8K251
2006$0.7500$0.7500$0.5700$0.7000n/a24.9K12

CYDY monthly closes, last 12 months

MonthMonth end closeChange
July 2026$0.2100-12.5%
June 2026$0.2400-20.0%
May 2026$0.3000-3.2%
April 2026$0.3100+14.8%
March 2026$0.2700+8.0%
February 2026$0.2500+4.2%
January 2026$0.2400-14.3%
December 2025$0.2800-15.2%
November 2025$0.3300+37.5%
October 2025$0.2400-7.7%
September 2025$0.2600-13.3%
August 2025$0.30000.0%

About the CYDY data

Daily bars. 4,927 sessions from Dec 13, 2006 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 Dec 13, 2006, 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/CYDY/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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Common questions

CYDY share price history

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