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 — 1995

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volume
1995-12-29$48.00$48.0010,375
1995-12-28$48.00$48.0013,875
1995-12-27$48.00$48.0015,125
1995-12-26$46.50$46.503,325
1995-12-22$47.00$47.005,725
1995-12-21$47.50$47.507,025
1995-12-20$48.50$48.504,500
1995-12-19$47.50$47.506,350
1995-12-18$47.50$47.5048,150
1995-12-15$50.00$50.008,825
1995-12-14$52.00$52.0011,150
1995-12-13$53.56$53.5624,200
1995-12-12$54.50$54.5010,525
1995-12-11$54.50$54.5019,925
1995-12-08$54.00$54.008,150
1995-12-07$53.50$53.5020,500
1995-12-06$50.50$50.5020,475
1995-12-05$50.00$50.0061,200
1995-12-04$51.00$51.0055,050
1995-12-01$45.00$45.0032,150
1995-11-30$39.00$39.0058,700
1995-11-29$44.00$44.0056,750
1995-11-28$50.00$50.0032,900
1995-11-27$55.50$55.5049,825
1995-11-24$49.50$49.5034,775
1995-11-22$46.50$46.50119,650
1995-11-21$49.50$49.5041,825
1995-11-20$42.50$42.5058,025
1995-11-17$38.00$38.0019,775
1995-11-16$36.50$36.5037,325
1995-11-15$35.50$35.504,475
1995-11-14$34.50$34.509,600
1995-11-13$34.50$34.5019,975
1995-11-10$34.00$34.0026,350
1995-11-09$34.00$34.0012,350
1995-11-08$34.00$34.0021,450
1995-11-07$33.00$33.0034,225
1995-11-06$33.88$33.8860,175
1995-11-03$27.50$27.502,850
1995-11-02$27.25$27.258,400
1995-11-01$27.75$27.7511,500
1995-10-31$29.50$29.505,325
1995-10-30$29.50$29.505,800
1995-10-27$27.50$27.503,175
1995-10-26$28.00$28.0011,950
1995-10-25$28.00$28.0015,575
1995-10-24$29.50$29.5015,975
1995-10-23$29.75$29.7519,075
1995-10-20$31.75$31.7527,500
1995-10-19$30.50$30.5025,700
1995-10-18$31.00$31.0024,850
1995-10-17$31.50$31.5019,150
1995-10-16$29.00$29.0034,800
1995-10-13$32.00$32.0041,050
1995-10-12$29.00$29.0061,500
1995-10-11$24.00$24.0030,325
1995-10-10$21.75$21.757,475
1995-10-09$21.25$21.252,050
1995-10-06$22.00$22.00425
1995-10-05$21.50$21.503,150
1995-10-04$21.00$21.002,975
1995-10-03$21.50$21.502,750
1995-10-02$21.00$21.009,025
1995-09-29$21.50$21.504,825
1995-09-28$21.00$21.004,175
1995-09-27$20.50$20.502,975
1995-09-26$21.50$21.502,000
1995-09-25$21.50$21.501,275
1995-09-22$22.00$22.007,575
1995-09-21$21.25$21.2527,100
1995-09-20$21.25$21.257,775
1995-09-19$20.00$20.00950
1995-09-18$19.50$19.504,450
1995-09-15$19.50$19.501,425
1995-09-14$19.75$19.7525,975
1995-09-13$20.50$20.503,100
1995-09-12$19.50$19.501,375
1995-09-11$19.25$19.254,100
1995-09-08$19.00$19.002,875
1995-09-07$19.50$19.504,050
1995-09-06$19.00$19.004,000
1995-09-05$19.50$19.501,375
1995-09-01$20.50$20.501,775
1995-08-31$20.25$20.254,075
1995-08-30$20.75$20.753,675
1995-08-29$20.00$20.009,875
1995-08-28$21.25$21.254,600
1995-08-25$21.00$21.0018,050
1995-08-24$21.50$21.508,925
1995-08-23$20.50$20.501,200
1995-08-22$20.50$20.508,675
1995-08-21$21.00$21.007,725
1995-08-18$20.75$20.7514,725
1995-08-17$18.75$18.756,800
1995-08-16$18.75$18.7520,675
1995-08-15$18.75$18.7518,600
1995-08-14$19.75$19.759,000
1995-08-11$20.50$20.507,875
1995-08-10$21.25$21.258,850
1995-08-09$20.50$20.5011,675
1995-08-08$21.75$21.759,650
1995-08-07$22.00$22.0020,950
1995-08-04$20.75$20.7539,100
1995-08-03$19.75$19.7518,825
1995-08-02$19.00$19.002,800
1995-08-01$19.75$19.7520,950
1995-07-31$20.25$20.2540,350
1995-07-28$22.50$22.5037,300
1995-07-27$24.50$24.50100,750
1995-07-26$24.00$24.0076,100
1995-07-25$20.00$20.0029,275
1995-07-24$18.50$18.5067,450
1995-07-21$17.00$17.0027,575
1995-07-20$15.50$15.5011,600
1995-07-19$13.75$13.7511,875
1995-07-18$13.75$13.754,575
1995-07-17$13.00$13.008,825
1995-07-14$14.50$14.509,250
1995-07-13$15.25$15.2542,125
1995-07-12$12.50$12.509,300
1995-07-11$12.00$12.007,475
1995-07-10$11.00$11.0021,550
1995-07-07$13.25$13.2526,000
1995-07-06$14.25$14.2537,275
1995-07-05$16.25$16.2557,525
1995-07-03$14.50$14.5049,975
1995-06-30$13.75$13.7564,475
1995-06-29$11.00$11.0058,375
1995-06-28$9.25$9.2540,700
1995-06-27$8.13$8.139,350
1995-06-26$8.13$8.13900
1995-06-23$8.00$8.0011,200
1995-06-22$8.13$8.131,625
1995-06-21$7.75$7.750
1995-06-20$7.75$7.75700
1995-06-19$7.75$7.757,825
1995-06-16$7.50$7.503,050
1995-06-15$7.50$7.50800
1995-06-14$8.00$8.00425
1995-06-13$8.00$8.007,575
1995-06-12$8.00$8.000
1995-06-09$8.00$8.001,250
1995-06-08$7.88$7.882,100
1995-06-07$8.00$8.00325
1995-06-06$7.75$7.754,200
1995-06-05$7.75$7.755,275
1995-06-02$7.88$7.88550
1995-06-01$8.00$8.002,450
1995-05-31$8.00$8.004,225
1995-05-30$7.75$7.759,000
1995-05-26$7.88$7.881,575
1995-05-25$7.88$7.889,800
1995-05-24$8.00$8.006,225
1995-05-23$8.00$8.0011,525
1995-05-22$7.88$7.882,125
1995-05-19$8.00$8.009,400
1995-05-18$7.88$7.885,850
1995-05-17$7.88$7.8816,850
1995-05-16$8.25$8.2523,350
1995-05-15$8.00$8.002,825
1995-05-12$8.25$8.258,825
1995-05-11$7.75$7.7527,875
1995-05-10$8.00$8.0017,275
1995-05-09$8.00$8.0025,425
1995-05-08$7.00$7.0020,100
1995-05-05$7.25$7.2510,950
1995-05-04$6.50$6.508,750
1995-05-03$6.00$6.0037,600
1995-05-02$5.63$5.631,000
1995-05-01$5.00$5.003,100
1995-04-28$5.88$5.882,975
1995-04-27$6.13$6.132,400
1995-04-26$6.00$6.0010,550
1995-04-25$5.75$5.756,025
1995-04-24$5.50$5.509,525
1995-04-21$6.00$6.003,725
1995-04-20$5.50$5.5050
1995-04-19$5.50$5.501,375
1995-04-18$5.00$5.00250
1995-04-17$5.25$5.251,775
1995-04-13$4.75$4.75175
1995-04-12$4.50$4.501,250
1995-04-11$4.75$4.751,875
1995-04-10$4.75$4.75325
1995-04-07$4.75$4.752,925
1995-04-06$4.75$4.75500
1995-04-05$5.50$5.501,325
1995-04-04$4.75$4.75225
1995-04-03$5.50$5.50500
1995-03-31$5.50$5.501,125
1995-03-30$5.00$5.002,175
1995-03-29$5.00$5.00350
1995-03-28$5.25$5.25250
1995-03-27$5.50$5.505,800
1995-03-24$5.50$5.50500
1995-03-23$5.25$5.25725
1995-03-22$5.75$5.75350
1995-03-21$5.25$5.252,875
1995-03-20$5.50$5.503,025
1995-03-17$5.25$5.251,525
1995-03-16$5.25$5.25250
1995-03-15$5.25$5.2516,400
1995-03-14$5.50$5.501,975
1995-03-13$5.50$5.50500
1995-03-10$5.50$5.504,175
1995-03-09$5.00$5.00225
1995-03-08$5.50$5.501,325
1995-03-07$4.75$4.7525
1995-03-06$5.50$5.50500
1995-03-03$5.50$5.50450
1995-03-02$4.50$4.50750
1995-03-01$5.50$5.505,375
1995-02-28$5.13$5.132,000
1995-02-27$5.00$5.001,000
1995-02-24$4.50$4.50125
1995-02-23$5.00$5.0075
1995-02-22$5.00$5.001,175
1995-02-21$4.75$4.751,175
1995-02-17$4.50$4.50550
1995-02-16$4.75$4.750
1995-02-15$4.75$4.750
1995-02-14$4.75$4.75800
1995-02-13$5.00$5.003,175
1995-02-10$4.25$4.25800
1995-02-09$4.50$4.503,550
1995-02-08$5.00$5.000
1995-02-07$5.00$5.00700
1995-02-06$5.25$5.25475
1995-02-03$5.50$5.50250
1995-02-02$5.50$5.500
1995-02-01$5.50$5.50175
1995-01-31$5.50$5.50425
1995-01-30$5.50$5.50150
1995-01-27$5.25$5.255,000
1995-01-26$5.25$5.25200
1995-01-25$5.50$5.5075
1995-01-24$5.50$5.505,275
1995-01-23$5.50$5.503,025
1995-01-20$5.50$5.503,475
1995-01-19$5.50$5.502,500
1995-01-18$5.25$5.251,175
1995-01-17$5.50$5.50575
1995-01-16$5.50$5.500
1995-01-13$5.50$5.501,300
1995-01-12$5.25$5.250
1995-01-11$5.25$5.25875
1995-01-10$5.25$5.251,100
1995-01-09$5.25$5.25775
1995-01-06$5.75$5.751,975
1995-01-05$5.25$5.25175
1995-01-04$5.25$5.25475
1995-01-03$5.50$5.501,250