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.

View year

Historical Stock Price — 2013

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volume
2013-12-31$4.93$4.9312,200
2013-12-30$4.98$4.986,800
2013-12-27$4.98$4.9812,600
2013-12-26$4.80$4.805,400
2013-12-24$4.76$4.761,500
2013-12-23$4.81$4.815,700
2013-12-20$4.65$4.655,100
2013-12-19$4.79$4.796,000
2013-12-18$4.75$4.758,800
2013-12-17$4.80$4.802,500
2013-12-16$4.80$4.8013,400
2013-12-13$4.83$4.834,200
2013-12-12$4.80$4.802,200
2013-12-11$4.69$4.6930,600
2013-12-10$4.80$4.808,700
2013-12-09$4.83$4.837,400
2013-12-06$4.87$4.8725,300
2013-12-05$4.87$4.8724,300
2013-12-04$4.90$4.903,900
2013-12-03$4.82$4.8218,000
2013-12-02$4.79$4.797,600
2013-11-29$4.86$4.860
2013-11-27$4.86$4.869,100
2013-11-26$4.83$4.834,100
2013-11-25$4.79$4.796,400
2013-11-22$4.75$4.756,600
2013-11-21$4.83$4.832,000
2013-11-20$4.81$4.814,700
2013-11-19$4.87$4.877,700
2013-11-18$4.88$4.8868,600
2013-11-15$5.05$5.053,500
2013-11-14$5.02$5.0224,400
2013-11-13$4.98$4.984,900
2013-11-12$4.95$4.9512,100
2013-11-11$4.89$4.895,700
2013-11-08$5.04$5.049,400
2013-11-07$4.90$4.9028,300
2013-11-06$5.39$5.391,900
2013-11-05$5.37$5.373,700
2013-11-04$5.35$5.352,800
2013-11-01$5.32$5.3221,700
2013-10-31$5.40$5.407,000
2013-10-30$5.37$5.373,300
2013-10-29$5.39$5.3911,200
2013-10-28$5.33$5.333,900
2013-10-25$5.36$5.366,600
2013-10-24$4.96$4.963,800
2013-10-23$4.88$4.8823,400
2013-10-22$4.95$4.9521,500
2013-10-21$5.05$5.0517,700
2013-10-18$5.15$5.1514,700
2013-10-17$5.16$5.1627,900
2013-10-16$5.20$5.2027,800
2013-10-15$5.26$5.2653,600
2013-10-14$5.25$5.2549,500
2013-10-11$5.50$5.5020,000
2013-10-10$5.49$5.4918,500
2013-10-09$5.55$5.5522,400
2013-10-08$5.53$5.5322,200
2013-10-07$5.70$5.7026,400
2013-10-04$5.68$5.688,400
2013-10-03$5.66$5.6618,300
2013-10-02$5.75$5.752,800
2013-10-01$5.76$5.762,000
2013-09-30$5.84$5.842,300
2013-09-27$5.85$5.852,800
2013-09-26$5.71$5.713,400
2013-09-25$5.66$5.662,400
2013-09-24$5.71$5.712,000
2013-09-23$5.74$5.747,200
2013-09-20$5.73$5.7324,300
2013-09-19$5.68$5.688,000
2013-09-18$5.47$5.4722,100
2013-09-17$5.60$5.601,200
2013-09-16$5.61$5.611,700
2013-09-13$5.60$5.6012,400
2013-09-12$5.65$5.654,900
2013-09-11$5.50$5.5033,300
2013-09-10$5.38$5.3822,200
2013-09-09$5.35$5.357,000
2013-09-06$5.48$5.4812,400
2013-09-05$5.66$5.6615,200
2013-09-04$5.58$5.5841,000
2013-09-03$5.65$5.657,500
2013-08-30$5.73$5.7310,400
2013-08-29$5.56$5.5625,100
2013-08-28$5.75$5.758,600
2013-08-27$5.64$5.647,800
2013-08-26$5.79$5.795,900
2013-08-23$5.87$5.878,300
2013-08-22$5.85$5.854,000
2013-08-21$5.75$5.758,300
2013-08-20$5.90$5.907,000
2013-08-19$5.97$5.9732,100
2013-08-16$5.65$5.657,200
2013-08-15$5.55$5.5510,200
2013-08-14$5.61$5.615,500
2013-08-13$5.80$5.8012,000
2013-08-12$5.83$5.8315,300
2013-08-09$6.02$6.026,200
2013-08-08$5.99$5.995,900
2013-08-07$6.00$6.007,500
2013-08-06$5.97$5.9714,000
2013-08-05$6.01$6.0125,200
2013-08-02$6.06$6.061,800
2013-08-01$6.11$6.113,700
2013-07-31$6.19$6.192,100
2013-07-30$6.08$6.0811,200
2013-07-29$6.12$6.128,300
2013-07-26$6.24$6.241,600
2013-07-25$6.12$6.121,500
2013-07-24$6.17$6.173,800
2013-07-23$6.18$6.184,300
2013-07-22$6.15$6.154,100
2013-07-19$6.17$6.178,400
2013-07-18$6.16$6.165,600
2013-07-17$6.08$6.089,700
2013-07-16$5.98$5.984,900
2013-07-15$6.18$6.1819,200
2013-07-12$6.03$6.036,100
2013-07-11$5.92$5.9222,800
2013-07-10$6.31$6.319,300
2013-07-09$6.33$6.33400
2013-07-08$6.30$6.302,600
2013-07-05$6.33$6.334,500
2013-07-03$6.41$6.411,100
2013-07-02$6.46$6.466,100
2013-07-01$6.45$6.459,600
2013-06-28$6.41$6.4113,600
2013-06-27$6.49$6.4941,600
2013-06-26$5.96$5.9615,900
2013-06-25$5.79$5.7924,600
2013-06-24$5.75$5.7565,900
2013-06-21$5.52$5.5216,000
2013-06-20$5.48$5.487,900
2013-06-19$5.23$5.2318,300
2013-06-18$5.47$5.472,300
2013-06-17$5.67$5.674,600
2013-06-14$5.41$5.4118,900
2013-06-13$5.64$5.647,000
2013-06-12$5.69$5.696,700
2013-06-11$5.67$5.679,300
2013-06-10$5.58$5.584,500
2013-06-07$5.58$5.582,900
2013-06-06$5.61$5.611,600
2013-06-05$5.61$5.618,900
2013-06-04$5.70$5.7016,400
2013-06-03$5.78$5.786,100
2013-05-31$5.73$5.7310,500
2013-05-30$5.80$5.8012,000
2013-05-29$5.75$5.7525,700
2013-05-28$5.78$5.7813,400
2013-05-24$5.73$5.735,000
2013-05-23$5.77$5.774,200
2013-05-22$5.84$5.8414,000
2013-05-21$5.63$5.6312,500
2013-05-20$5.68$5.6811,400
2013-05-17$5.59$5.5923,700
2013-05-16$5.60$5.6037,500
2013-05-15$5.18$5.186,100
2013-05-14$5.16$5.1621,100
2013-05-13$5.04$5.044,500
2013-05-10$4.82$4.828,800
2013-05-09$4.95$4.9528,800
2013-05-08$5.02$5.023,800
2013-05-07$4.80$4.803,100
2013-05-06$4.79$4.7920,900
2013-05-03$4.56$4.5613,600
2013-05-02$4.63$4.6325,200
2013-05-01$4.50$4.5011,100
2013-04-30$4.38$4.381,600
2013-04-29$4.32$4.3214,100
2013-04-26$4.34$4.3410,300
2013-04-25$4.30$4.304,300
2013-04-24$4.26$4.261,400
2013-04-23$4.25$4.251,600
2013-04-22$4.24$4.241,500
2013-04-19$4.38$4.38700
2013-04-18$4.26$4.26900
2013-04-17$4.29$4.295,400
2013-04-16$4.27$4.274,600
2013-04-15$4.35$4.35300
2013-04-12$4.32$4.325,200
2013-04-11$4.27$4.275,900
2013-04-10$4.30$4.3010,400
2013-04-09$4.27$4.275,900
2013-04-08$4.27$4.2726,500
2013-04-05$4.40$4.402,800
2013-04-04$4.44$4.444,900
2013-04-03$4.40$4.407,300
2013-04-02$4.42$4.4211,600
2013-04-01$4.44$4.445,200
2013-03-28$4.47$4.471,800
2013-03-27$4.51$4.5111,800
2013-03-26$4.51$4.513,200
2013-03-25$4.68$4.688,600
2013-03-22$4.66$4.66500
2013-03-21$4.65$4.653,000
2013-03-20$4.63$4.631,200
2013-03-19$4.70$4.700
2013-03-18$4.70$4.702,500
2013-03-15$4.73$4.736,900
2013-03-14$4.65$4.654,500
2013-03-13$4.44$4.445,400
2013-03-12$4.52$4.528,900
2013-03-11$4.44$4.449,400
2013-03-08$4.57$4.5723,200
2013-03-07$4.44$4.4410,600
2013-03-06$4.44$4.448,400
2013-03-05$4.42$4.4213,500
2013-03-04$4.47$4.474,600
2013-03-01$4.37$4.377,300
2013-02-28$4.40$4.408,200
2013-02-27$4.28$4.2841,100
2013-02-26$4.34$4.345,200
2013-02-25$4.44$4.448,900
2013-02-22$4.50$4.508,900
2013-02-21$4.53$4.535,900
2013-02-20$4.58$4.589,900
2013-02-19$4.60$4.606,400
2013-02-15$4.66$4.668,000
2013-02-14$4.65$4.659,200
2013-02-13$4.74$4.7410,700
2013-02-12$4.74$4.7415,100
2013-02-11$4.86$4.866,000
2013-02-08$4.92$4.9214,600
2013-02-07$4.90$4.9013,300
2013-02-06$4.96$4.962,000
2013-02-05$4.96$4.961,100
2013-02-04$5.00$5.006,700
2013-02-01$5.04$5.046,700
2013-01-31$5.04$5.047,300
2013-01-30$4.89$4.8911,300
2013-01-29$4.95$4.955,700
2013-01-28$4.98$4.983,900
2013-01-25$4.96$4.968,100
2013-01-24$5.00$5.0010,900
2013-01-23$4.98$4.9813,900
2013-01-22$4.90$4.903,400
2013-01-18$4.90$4.908,400
2013-01-17$5.00$5.006,600
2013-01-16$4.97$4.976,600
2013-01-15$5.04$5.046,400
2013-01-14$5.10$5.101,600
2013-01-11$5.11$5.1110,300
2013-01-10$5.15$5.152,100
2013-01-09$5.30$5.3010,600
2013-01-08$5.19$5.1910,400
2013-01-07$4.91$4.914,400
2013-01-04$4.96$4.963,900
2013-01-03$4.73$4.735,500
2013-01-02$4.72$4.726,300