Other US listings · CYAN · stock
Cyanotech Corp. (CYAN) stock price history
Every Other US listings trading session of Cyanotech Corp. from May 21, 1991 to Jul 17, 2026: 8,852 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.
CYAN adjusted close, 1991 to 2026
- $55.50
- All time high, 1995
- $0.5700
- 52 week high, $0.2100 low
- 8,852
- Daily sessions since 1991
Last updated Jul 17, 2026, the last stored session. Refreshes after each trading day. Full 1991 to 2026 series and minute bars.
CYAN key facts
- Cyanotech Corp. (CYAN) closed at $0.5300 on Jul 17, 2026 on Other US listings.
- CYAN's all time high close is $55.50, set on Nov 27, 1995; its all time low close is $0.2100 on Feb 21, 2024.
- CYAN's 52 week range is $0.2100 to $0.5700.
- CYAN returned +26.2% over the year to Jul 17, 2026 and -81.9% over five years.
- Over ten years CYAN returned -89%, -20.1% a year compounded.
- CYAN's deepest drawdown was -99.6% from Nov 27, 1995 to Feb 21, 2024.
- DataCedar holds 8,852 daily sessions of CYAN history from May 21, 1991, adjusted for splits and dividends, served by the API under a key.
CYAN price chart, 1991 to 2026
CYAN returns
Price return from the last close on or before the window start to Jul 17, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | +35.9% |
| 3 months | +60.6% |
| 6 months | +39.5% |
| Year to date | +29.3% |
| 1 year | +26.2% |
| 3 years | -39.8% |
| 5 years | -81.9% |
| 10 years | -89.4% |
| Since May 21, 1991 | -78.8% |
| Compound annual growth, 35.2 years | -4.3% |
CYAN records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- $55.50 on Nov 27, 1995
- All time low close
- $0.2100 on Feb 21, 2024
- 52 week high
- $0.5700 on Dec 2, 2025
- 52 week low
- $0.2100 on Aug 8, 2025
- Deepest drawdown
- -99.6% from Nov 27, 1995 to Feb 21, 2024, not yet recovered
- Best single session
- +68.8% on Mar 9, 2000
- Worst single session
- -40.9% on Feb 20, 2024
- Volatility, 1 year annualised
- 169.2%
- Sessions closing higher, 1 year
- 26%
- Best calendar year
- 1995, +753%
- Worst calendar year
- 2022, -66%
CYAN 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. 1991 starts on May 21, 1991; 2026 runs to Jul 17, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | $0.4200 | $0.5500 | $0.2300 | $0.5300 | +17.8% | 519.4K | 135 |
| 2025 | $0.3700 | $0.5700 | $0.2100 | $0.4500 | +25.0% | 1.5M | 250 |
| 2024 | $0.8900 | $0.9600 | $0.1200 | $0.3600 | -59.6% | 3.4M | 252 |
| 2023 | $1.15 | $1.70 | $0.6100 | $0.8900 | -19.1% | 3.9M | 250 |
| 2022 | $3.22 | $3.62 | $0.9000 | $1.10 | -66.0% | 5.5M | 251 |
| 2021 | $3.05 | $6.29 | $2.69 | $3.24 | +6.6% | 27.2M | 252 |
| 2020 | $2.29 | $3.45 | $1.82 | $3.04 | +32.8% | 3.2M | 253 |
| 2019 | $3.02 | $4.07 | $2.01 | $2.29 | -24.2% | 774K | 252 |
| 2018 | $3.85 | $5.78 | $3.02 | $3.02 | -22.8% | 1.6M | 251 |
| 2017 | $4.20 | $5.35 | $3.25 | $3.91 | -9.1% | 1.3M | 251 |
| 2016 | $5.21 | $5.80 | $3.32 | $4.30 | -18.1% | 1.4M | 252 |
| 2015 | $6.95 | $10.85 | $5.07 | $5.25 | -24.2% | 1.9M | 252 |
| 2014 | $4.95 | $7.95 | $4.27 | $6.93 | +40.6% | 3M | 252 |
| 2013 | $4.75 | $6.70 | $4.21 | $4.93 | +6.5% | 2.7M | 252 |
| 2012 | $7.10 | $11.84 | $4.50 | $4.63 | -33.4% | 9M | 250 |
| 2011 | $3.33 | $9.36 | $2.55 | $6.95 | +105.6% | 6M | 252 |
| 2010 | $5.48 | $5.75 | $1.40 | $3.38 | -36.1% | 4.6M | 252 |
| 2009 | $1.26 | $5.76 | $1.10 | $5.29 | +262.3% | 4.1M | 252 |
| 2008 | $1.21 | $2.15 | $1.01 | $1.46 | +4.3% | 2.4M | 253 |
| 2007 | $1.85 | $2.48 | $0.7500 | $1.40 | -25.5% | 3.1M | 251 |
| 2006 | $2.52 | $4.60 | $0.7600 | $1.88 | -27.7% | 3.3M | 251 |
| 2005 | $6.04 | $6.12 | $2.04 | $2.60 | -54.9% | 2.2M | 252 |
| 2004 | $7.72 | $9.20 | $4.00 | $5.76 | -23.4% | 4.7M | 252 |
| 2003 | $1.80 | $7.88 | $1.40 | $7.52 | +370.0% | 3.4M | 252 |
| 2002 | $4.08 | $5.72 | $1.00 | $1.60 | -60.0% | 1.2M | 252 |
| 2001 | $3.25 | $7.00 | $1.92 | $4.00 | +28.0% | 2.1M | 248 |
| 2000 | $7.00 | $19.50 | $2.50 | $3.13 | -50.0% | 5.7M | 252 |
| 1999 | $4.75 | $9.00 | $2.00 | $6.25 | +47.1% | 3.2M | 252 |
| 1998 | $10.75 | $17.75 | $3.63 | $4.25 | -61.8% | 1.9M | 252 |
| 1997 | $25.25 | $32.50 | $9.75 | $11.13 | -56.8% | 3.3M | 253 |
| 1996 | $48.00 | $49.00 | $20.50 | $25.75 | -46.4% | 3.5M | 254 |
| 1995 | $5.75 | $60.00 | $4.25 | $48.00 | +753.3% | 3.2M | 252 |
| 1994 | $5.50 | $6.75 | $3.25 | $5.63 | +2.3% | 583.1K | 252 |
| 1993 | $4.25 | $8.00 | $4.00 | $5.50 | +29.4% | 574.2K | 253 |
| 1992 | $1.38 | $9.00 | $1.25 | $4.25 | +325.0% | 516.7K | 254 |
| 1991 | $2.50 | $4.50 | $1.00 | $1.00 | n/a | 102.4K | 156 |
CYAN monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| July 2026 | $0.5300 | +23.3% |
| June 2026 | $0.4300 | +16.2% |
| May 2026 | $0.3700 | -5.1% |
| April 2026 | $0.3900 | +30.0% |
| March 2026 | $0.3000 | -25.0% |
| February 2026 | $0.4000 | -24.5% |
| January 2026 | $0.5300 | +17.8% |
| December 2025 | $0.4500 | +32.4% |
| November 2025 | $0.3400 | +6.3% |
| October 2025 | $0.3200 | +6.7% |
| September 2025 | $0.3000 | -11.8% |
| August 2025 | $0.3400 | -8.1% |
About the CYAN data
Daily bars. 8,852 sessions from May 21, 1991 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 May 21, 1991, 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/CYAN/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on Other US listings
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Common questions
CYAN share price history
