0.40000001 USD
0
0%
Last update Dec 15, 11:14 AM EST
Pre-market
Day range
0.40000001
0.40000001
Previous close
0.40000001
Open
0.40000001
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Cyanotech Corporation
0.40
0
0%

Historical data

Prices

Date Open High Low Close % Change Volume
Dec 17, 2025 0.40000001 0.40000001 0.40000001 0.40000001 0 0
Dec 16, 2025 0.36000001 0.40000001 0.36000001 0.40000001 11.11% 12700
Dec 15, 2025 0.44999999 0.44999999 0.36000001 0.38999999 -13.33% 19000
Dec 12, 2025 0.44999999 0.44999999 0.44999999 0.44999999 0 0
Dec 11, 2025 0.40000001 0.44999999 0.40000001 0.44999999 12.50% 1700
Dec 10, 2025 0.44000000 0.44000000 0.44000000 0.44000000 0 100
Dec 09, 2025 0.40000001 0.54000002 0.40000001 0.54000002 35.00% 700
Dec 08, 2025 0.44999999 0.55000001 0.44000000 0.55000001 22.22% 21300
Dec 05, 2025 0.41999999 0.47999999 0.40000001 0.47000000 11.90% 49900
Dec 04, 2025 0.36000001 0.36000001 0.36000001 0.36000001 0 200
Dec 03, 2025 0.56999999 0.56999999 0.56999999 0.56999999 0 0
Dec 02, 2025 0.34000000 0.56999999 0.34000000 0.56999999 67.65% 2900
Dec 01, 2025 0.34999999 0.34999999 0.34999999 0.34999999 0 1100
Nov 28, 2025 0.34000000 0.34000000 0.34000000 0.34000000 0 0
Nov 26, 2025 0.38000000 0.46000001 0.34000000 0.34000000 -10.53% 4500
Nov 25, 2025 0.34000000 0.34000000 0.34000000 0.34000000 0 4900
Nov 24, 2025 0.34000000 0.34000000 0.34000000 0.34000000 0 2800
Nov 21, 2025 0.34000000 0.44999999 0.34000000 0.34000000 0 2700
Nov 20, 2025 0.36000001 0.47000000 0.36000001 0.47000000 30.56% 300
Nov 19, 2025 0.38999999 0.40000001 0.34000000 0.40000001 2.56% 7600
Nov 18, 2025 0.31999999 0.40000001 0.31999999 0.40000001 25.00% 700
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Pre-market

Exchange is currently open for pre-market.
Main market opens in 3 hours 41 minutes

05:48
00:00
09:30
16:00
23:59

Trading Hours (Monday - Friday):

Pre-market
04:00 - 09:30
Main market
09:30 - 16:00
Post-market
16:00 - 20:00
All times are displayed in the America/New_York timezone (EST, UTC-05:00).