OTC:CYAN | Historical Stock Price | CYANOTECH CORP

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
1991-05-21 to 2026-08-27
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$0.23$0.69$2.06$6.21$18.69$56.241991-05-212026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2011

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volume
2011-12-30$6.95$6.95137,500
2011-12-29$7.62$7.62132,400
2011-12-28$8.90$8.9011,700
2011-12-27$9.02$9.0237,600
2011-12-23$9.09$9.0928,600
2011-12-22$8.99$8.99102,500
2011-12-21$8.91$8.9163,900
2011-12-20$8.66$8.6658,300
2011-12-19$8.51$8.5180,800
2011-12-16$8.48$8.4836,400
2011-12-15$8.40$8.4043,600
2011-12-14$8.18$8.18103,000
2011-12-13$8.70$8.7054,200
2011-12-12$8.40$8.40167,200
2011-12-09$8.59$8.59200,900
2011-12-08$7.64$7.6474,300
2011-12-07$7.30$7.3051,500
2011-12-06$7.26$7.26147,600
2011-12-05$6.49$6.4973,500
2011-12-02$6.00$6.0027,000
2011-12-01$5.86$5.8628,900
2011-11-30$5.80$5.8021,700
2011-11-29$5.78$5.7830,000
2011-11-28$5.44$5.4433,900
2011-11-25$5.41$5.412,200
2011-11-23$5.36$5.3633,500
2011-11-22$5.31$5.3149,600
2011-11-21$5.30$5.3051,800
2011-11-18$5.48$5.4876,500
2011-11-17$5.87$5.8714,700
2011-11-16$5.87$5.8729,700
2011-11-15$6.00$6.0062,100
2011-11-14$5.70$5.7079,800
2011-11-11$5.04$5.0414,700
2011-11-10$5.01$5.0122,400
2011-11-09$5.40$5.4014,500
2011-11-08$5.40$5.4014,000
2011-11-07$5.47$5.4725,000
2011-11-04$5.49$5.4920,500
2011-11-03$5.45$5.4560,600
2011-11-02$5.29$5.2917,800
2011-11-01$5.09$5.0911,200
2011-10-31$5.20$5.2020,100
2011-10-28$4.99$4.9918,200
2011-10-27$5.00$5.0032,400
2011-10-26$4.84$4.8420,800
2011-10-25$4.62$4.6218,200
2011-10-24$4.90$4.9058,600
2011-10-21$5.25$5.2564,800
2011-10-20$5.36$5.3654,000
2011-10-19$4.90$4.9054,400
2011-10-18$4.68$4.6822,800
2011-10-17$4.75$4.7530,300
2011-10-14$4.42$4.4210,000
2011-10-13$4.19$4.197,300
2011-10-12$4.19$4.198,900
2011-10-11$3.94$3.9444,200
2011-10-10$3.89$3.892,700
2011-10-07$3.68$3.681,700
2011-10-06$3.87$3.872,000
2011-10-05$3.65$3.652,200
2011-10-04$3.74$3.747,400
2011-10-03$3.61$3.614,400
2011-09-30$3.76$3.76900
2011-09-29$3.75$3.754,200
2011-09-28$3.80$3.801,700
2011-09-27$3.72$3.723,100
2011-09-26$3.71$3.715,000
2011-09-23$3.80$3.804,100
2011-09-22$3.56$3.5611,600
2011-09-21$3.99$3.994,600
2011-09-20$3.93$3.93600
2011-09-19$4.00$4.003,200
2011-09-16$4.00$4.007,100
2011-09-15$3.93$3.934,400
2011-09-14$3.90$3.909,900
2011-09-13$3.70$3.706,000
2011-09-12$3.61$3.614,000
2011-09-09$3.75$3.751,100
2011-09-08$3.62$3.622,400
2011-09-07$3.62$3.626,800
2011-09-06$3.75$3.751,400
2011-09-02$3.66$3.661,800
2011-09-01$3.75$3.7511,500
2011-08-31$3.81$3.816,000
2011-08-30$3.80$3.805,100
2011-08-29$3.82$3.825,700
2011-08-26$3.81$3.814,200
2011-08-25$3.91$3.916,500
2011-08-24$3.88$3.883,200
2011-08-23$3.85$3.8513,300
2011-08-22$3.70$3.7013,200
2011-08-19$4.07$4.078,300
2011-08-18$3.96$3.9620,800
2011-08-17$4.38$4.386,200
2011-08-16$4.27$4.278,200
2011-08-15$4.18$4.1837,300
2011-08-12$4.14$4.1417,500
2011-08-11$3.95$3.9524,900
2011-08-10$3.66$3.663,000
2011-08-09$3.57$3.5710,500
2011-08-08$3.28$3.2814,100
2011-08-05$3.27$3.2720,300
2011-08-04$3.66$3.6614,900
2011-08-03$3.80$3.809,200
2011-08-02$3.75$3.757,500
2011-08-01$3.65$3.652,800
2011-07-29$3.52$3.523,400
2011-07-28$3.62$3.623,600
2011-07-27$3.61$3.618,600
2011-07-26$3.70$3.7010,500
2011-07-25$3.64$3.6414,600
2011-07-22$3.66$3.668,900
2011-07-21$3.59$3.596,300
2011-07-20$3.54$3.543,100
2011-07-19$3.50$3.5013,200
2011-07-18$3.66$3.668,300
2011-07-15$3.67$3.676,000
2011-07-14$3.67$3.67500
2011-07-13$3.62$3.626,700
2011-07-12$3.69$3.6912,500
2011-07-11$3.64$3.649,300
2011-07-08$3.55$3.55800
2011-07-07$3.55$3.5511,200
2011-07-06$3.60$3.6010,200
2011-07-05$3.65$3.6511,700
2011-07-01$3.58$3.5818,800
2011-06-30$3.64$3.6419,000
2011-06-29$3.57$3.5715,700
2011-06-28$3.57$3.5745,800
2011-06-27$3.08$3.087,500
2011-06-24$3.06$3.061,200
2011-06-23$3.07$3.0712,800
2011-06-22$3.10$3.102,200
2011-06-21$3.12$3.122,400
2011-06-20$3.08$3.082,700
2011-06-17$3.12$3.1210,100
2011-06-16$3.01$3.011,900
2011-06-15$3.03$3.032,500
2011-06-14$3.04$3.047,300
2011-06-13$2.93$2.9335,700
2011-06-10$3.15$3.154,200
2011-06-09$3.24$3.242,900
2011-06-08$3.12$3.127,800
2011-06-07$3.22$3.220
2011-06-06$3.22$3.22500
2011-06-03$3.25$3.254,500
2011-06-02$3.20$3.203,100
2011-06-01$3.15$3.1528,000
2011-05-31$3.38$3.38300
2011-05-27$3.36$3.367,900
2011-05-26$3.35$3.354,400
2011-05-25$3.35$3.359,800
2011-05-24$3.42$3.426,200
2011-05-23$3.42$3.423,900
2011-05-20$3.50$3.501,600
2011-05-19$3.53$3.532,700
2011-05-18$3.59$3.5911,900
2011-05-17$3.38$3.386,000
2011-05-16$3.46$3.462,200
2011-05-13$3.45$3.451,800
2011-05-12$3.55$3.557,300
2011-05-11$3.34$3.346,500
2011-05-10$3.35$3.354,100
2011-05-09$3.40$3.4050,000
2011-05-06$3.04$3.043,500
2011-05-05$3.07$3.0713,800
2011-05-04$3.15$3.156,200
2011-05-03$3.18$3.185,300
2011-05-02$3.22$3.225,700
2011-04-29$3.23$3.2310,000
2011-04-28$3.25$3.259,800
2011-04-27$3.28$3.284,000
2011-04-26$3.30$3.3013,600
2011-04-25$3.32$3.3212,000
2011-04-21$3.24$3.2414,600
2011-04-20$3.38$3.3832,100
2011-04-19$3.56$3.568,100
2011-04-18$3.69$3.6918,500
2011-04-15$3.59$3.597,600
2011-04-14$3.58$3.5811,400
2011-04-13$3.48$3.484,300
2011-04-12$3.45$3.4518,700
2011-04-11$3.37$3.3711,300
2011-04-08$3.32$3.329,400
2011-04-07$3.42$3.4212,200
2011-04-06$3.45$3.454,300
2011-04-05$3.58$3.583,700
2011-04-04$3.41$3.415,000
2011-04-01$3.38$3.389,700
2011-03-31$3.42$3.424,800
2011-03-30$3.41$3.418,600
2011-03-29$3.38$3.3815,400
2011-03-28$3.51$3.5122,700
2011-03-25$3.45$3.4513,300
2011-03-24$3.44$3.442,300
2011-03-23$3.45$3.453,300
2011-03-22$3.45$3.453,400
2011-03-21$3.41$3.416,900
2011-03-18$3.39$3.394,000
2011-03-17$3.38$3.3813,300
2011-03-16$3.39$3.397,400
2011-03-15$3.50$3.5031,500
2011-03-14$3.45$3.4523,900
2011-03-11$3.50$3.5055,900
2011-03-10$3.83$3.838,700
2011-03-09$3.80$3.8044,300
2011-03-08$3.60$3.601,600
2011-03-07$3.70$3.7039,200
2011-03-04$3.52$3.525,600
2011-03-03$3.55$3.558,500
2011-03-02$3.54$3.5410,200
2011-03-01$3.70$3.7020,000
2011-02-28$3.60$3.6016,400
2011-02-25$3.36$3.3622,400
2011-02-24$3.24$3.2471,000
2011-02-23$3.41$3.4150,200
2011-02-22$3.62$3.6225,500
2011-02-18$3.62$3.6238,500
2011-02-17$3.90$3.90110,200
2011-02-16$3.65$3.65974,200
2011-02-15$2.62$2.627,300
2011-02-14$2.64$2.6412,100
2011-02-11$2.73$2.738,700
2011-02-10$2.83$2.833,600
2011-02-09$2.64$2.645,600
2011-02-08$2.71$2.712,200
2011-02-07$2.70$2.707,000
2011-02-04$2.65$2.655,300
2011-02-03$2.60$2.6011,000
2011-02-02$2.66$2.6623,200
2011-02-01$2.71$2.7137,700
2011-01-31$2.95$2.9510,300
2011-01-28$2.93$2.934,600
2011-01-27$3.00$3.009,600
2011-01-26$3.00$3.0014,100
2011-01-25$3.02$3.0215,700
2011-01-24$3.07$3.079,800
2011-01-21$3.24$3.240
2011-01-20$3.24$3.248,100
2011-01-19$3.19$3.198,500
2011-01-18$3.15$3.1513,500
2011-01-14$3.15$3.159,800
2011-01-13$3.13$3.137,800
2011-01-12$3.04$3.046,900
2011-01-11$3.11$3.116,800
2011-01-10$3.11$3.114,200
2011-01-07$3.23$3.2315,900
2011-01-06$3.13$3.1311,000
2011-01-05$3.11$3.1131,900
2011-01-04$3.14$3.1412,800
2011-01-03$3.14$3.1440,900