Cyanotech Corporation CYAN
0.59 USD -0.02 (-3.28%)
Regular-session close
0.59 Day range 0.59
0.23 52-week range 0.78
- YTD
- +31.11%
- 1 year
- +84.37%
CYAN price history
| Date | Open | High | Low | Close | Change | Change % | Volume |
|---|---|---|---|---|---|---|---|
| Nov 13, 2026 | 0.59 | 0.59 | 0.59 | 0.59 | -0.02 | -3.28% | 3,231 |
| Nov 12, 2026 | 0.59 | 0.61 | 0.54 | 0.61 | +0.07 | +12.96% | 40,200 |
| Nov 11, 2026 | 0.41 | 0.61 | 0.36 | 0.54 | +0.11 | +25.58% | 49,600 |
| Nov 10, 2026 | 0.43 | 0.43 | 0.43 | 0.43 | 0.00 | 0.00% | 0 |
| Nov 9, 2026 | 0.43 | 0.43 | 0.43 | 0.43 | 0.00 | 0.00% | 0 |
| Nov 6, 2026 | 0.52 | 0.52 | 0.43 | 0.43 | -0.01 | -2.27% | 800 |
| Nov 5, 2026 | 0.43 | 0.45 | 0.43 | 0.44 | -0.01 | -2.22% | 10,000 |
| Nov 4, 2026 | 0.45 | 0.45 | 0.45 | 0.45 | 0.00 | 0.00% | 5,900 |
| Nov 3, 2026 | 0.45 | 0.45 | 0.45 | 0.45 | -0.01 | -2.17% | 2,900 |
| Nov 2, 2026 | 0.47 | 0.47 | 0.45 | 0.46 | -0.15 | -24.59% | 6,000 |
| Oct 30, 2026 | 0.61 | 0.61 | 0.61 | 0.61 | 0.00 | 0.00% | 0 |
| Oct 29, 2026 | 0.44 | 0.61 | 0.44 | 0.61 | -0.02 | -3.17% | 6,000 |
| Oct 28, 2026 | 0.63 | 0.63 | 0.63 | 0.63 | 0.00 | 0.00% | 0 |
| Oct 27, 2026 | 0.63 | 0.63 | 0.63 | 0.63 | 0.00 | 0.00% | 0 |
| Oct 26, 2026 | 0.63 | 0.63 | 0.63 | 0.63 | 0.00 | 0.00% | 200 |
| Oct 23, 2026 | 0.63 | 0.63 | 0.63 | 0.63 | 0.00 | 0.00% | 0 |
| Oct 22, 2026 | 0.57 | 0.63 | 0.57 | 0.63 | +0.05 | +8.62% | 3,800 |
| Oct 21, 2026 | 0.65 | 0.65 | 0.58 | 0.58 | -0.08 | -12.12% | 4,700 |
| Oct 20, 2026 | 0.72 | 0.72 | 0.66 | 0.66 | -0.04 | -5.71% | 400 |
| Oct 19, 2026 | 0.70 | 0.70 | 0.70 | 0.70 | 0.00 | 0.00% | 0 |
| Oct 16, 2026 | 0.70 | 0.70 | 0.70 | 0.70 | 0.00 | 0.00% | 0 |
| Oct 15, 2026 | 0.70 | 0.70 | 0.70 | 0.70 | 0.00 | 0.00% | 0 |
| Oct 14, 2026 | 0.78 | 0.78 | 0.70 | 0.70 | +0.01 | +1.45% | 2,000 |
| Oct 13, 2026 | 0.78 | 0.78 | 0.69 | 0.69 | +0.02 | +2.99% | 7,000 |
| Oct 12, 2026 | 0.67 | 0.78 | 0.67 | 0.67 | -0.11 | -14.10% | 13,100 |
| Oct 9, 2026 | 0.75 | 0.78 | 0.75 | 0.78 | +0.04 | +5.41% | 13,300 |
| Oct 8, 2026 | 0.50 | 0.74 | 0.50 | 0.74 | +0.21 | +39.62% | 12,100 |
| Oct 7, 2026 | 0.53 | 0.53 | 0.53 | 0.53 | 0.00 | 0.00% | 0 |
| Oct 6, 2026 | 0.50 | 0.55 | 0.50 | 0.53 | +0.13 | +32.50% | 17,000 |
| Oct 5, 2026 | 0.41 | 0.55 | 0.40 | 0.40 | -0.01 | -2.44% | 12,100 |
| Oct 2, 2026 | 0.31 | 0.53 | 0.31 | 0.41 | +0.06 | +17.14% | 15,900 |
| Oct 1, 2026 | 0.31 | 0.38 | 0.31 | 0.35 | -0.03 | -7.89% | 21,800 |
| Sep 30, 2026 | 0.36 | 0.38 | 0.36 | 0.38 | -0.04 | -9.52% | 1,100 |
| Sep 29, 2026 | 0.42 | 0.42 | 0.42 | 0.42 | 0.00 | 0.00% | 0 |
| Sep 28, 2026 | 0.42 | 0.42 | 0.42 | 0.42 | -0.07 | -14.29% | 2,500 |
| Sep 25, 2026 | 0.49 | 0.49 | 0.49 | 0.49 | 0.00 | 0.00% | 0 |
| Sep 24, 2026 | 0.49 | 0.49 | 0.49 | 0.49 | 0.00 | 0.00% | 0 |
| Sep 23, 2026 | 0.49 | 0.49 | 0.49 | 0.49 | 0.00 | 0.00% | 0 |
| Sep 22, 2026 | 0.49 | 0.49 | 0.49 | 0.49 | 0.00 | 0.00% | 0 |
| Sep 21, 2026 | 0.42 | 0.49 | 0.42 | 0.49 | +0.03 | +6.52% | 10,100 |
| Sep 18, 2026 | 0.46 | 0.46 | 0.46 | 0.46 | 0.00 | 0.00% | 0 |
| Sep 17, 2026 | 0.42 | 0.46 | 0.42 | 0.46 | -0.05 | -9.80% | 2,900 |
| Sep 16, 2026 | 0.51 | 0.51 | 0.51 | 0.51 | 0.00 | 0.00% | 0 |
| Sep 15, 2026 | 0.51 | 0.51 | 0.51 | 0.51 | +0.02 | +4.08% | 6,600 |
| Sep 14, 2026 | 0.49 | 0.49 | 0.49 | 0.49 | 0.00 | 0.00% | 0 |
| Sep 11, 2026 | 0.49 | 0.49 | 0.49 | 0.49 | 0.00 | 0.00% | 2,000 |
| Sep 10, 2026 | 0.50 | 0.51 | 0.49 | 0.49 | -0.02 | -3.92% | 3,800 |
| Sep 9, 2026 | 0.51 | 0.51 | 0.51 | 0.51 | 0.00 | 0.00% | 0 |
| Sep 8, 2026 | 0.51 | 0.51 | 0.51 | 0.51 | +0.02 | +4.08% | 100 |
| Sep 4, 2026 | 0.51 | 0.51 | 0.49 | 0.49 | -0.04 | -7.55% | 2,100 |
| Sep 3, 2026 | 0.46 | 0.53 | 0.46 | 0.53 | +0.02 | +3.92% | 11,600 |
| Sep 2, 2026 | 0.51 | 0.51 | 0.51 | 0.51 | +0.09 | +21.43% | 1,200 |
| Sep 1, 2026 | 0.42 | 0.42 | 0.42 | 0.42 | 0.00 | 0.00% | 0 |
| Aug 31, 2026 | 0.42 | 0.42 | 0.42 | 0.42 | -0.08 | -16.00% | 900 |
| Aug 28, 2026 | 0.53 | 0.53 | 0.35 | 0.50 | +0.05 | +11.11% | 50,500 |
| Aug 27, 2026 | 0.45 | 0.45 | 0.45 | 0.45 | 0.00 | 0.00% | 0 |
| Aug 26, 2026 | 0.45 | 0.45 | 0.45 | 0.45 | 0.00 | 0.00% | 500 |
| Aug 25, 2026 | 0.49 | 0.50 | 0.45 | 0.45 | 0.00 | 0.00% | 19,300 |
| Aug 24, 2026 | 0.45 | 0.45 | 0.45 | 0.45 | 0.00 | 0.00% | 0 |
| Aug 21, 2026 | 0.45 | 0.45 | 0.45 | 0.45 | 0.00 | 0.00% | 0 |
| Aug 20, 2026 | 0.45 | 0.45 | 0.45 | 0.45 | 0.00 | 0.00% | 0 |
| Aug 19, 2026 | 0.45 | 0.45 | 0.45 | 0.45 | 0.00 | 0.00% | 0 |
| Aug 18, 2026 | 0.46 | 0.46 | 0.45 | 0.45 | -0.04 | -8.16% | 9,300 |
| Aug 17, 2026 | 0.49 | 0.49 | 0.49 | 0.49 | 0.00 | 0.00% | 0 |
| Aug 14, 2026 | 0.49 | 0.49 | 0.49 | 0.49 | +0.03 | +6.52% | 500 |
65 days, newest first. Daily bars as drawn on the CYAN chart; change is against the previous day's close. Open, high, low and volume are in the download and on a wider screen.