NASDAQ:WABC | Historical Stock Price | WESTAMERICA BANCORPORATION

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
1980-03-17 to 2026-09-04
Data captured

Stock Price Chart

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

$1.74$4.38$11.02$27.72$69.74$175.441980-03-172026-08-27

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

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Historical Stock Price — 1985

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1985-12-31$3.67$3.671,800——
1985-12-30$3.54$3.540——
1985-12-27$3.54$3.548,400——
1985-12-26$3.67$3.671,800——
1985-12-24$3.54$3.540——
1985-12-23$3.54$3.5440,800——
1985-12-20$3.54$3.541,800——
1985-12-19$3.54$3.5413,200——
1985-12-18$3.54$3.5464,200——
1985-12-17$3.63$3.6319,200——
1985-12-16$3.54$3.547,800——
1985-12-13$3.67$3.676,000——
1985-12-12$3.67$3.673,000——
1985-12-11$3.56$3.5611,400——
1985-12-10$3.54$3.541,800——
1985-12-09$3.67$3.675,400——
1985-12-06$3.54$3.544,800——
1985-12-05$3.54$3.542,400——
1985-12-04$3.67$3.6718,000——
1985-12-03$3.54$3.5413,200——
1985-12-02$3.54$3.5410,200——
1985-11-29$3.63$3.6311,400——
1985-11-27$3.63$3.633,600——
1985-11-26$3.63$3.637,200——
1985-11-25$3.63$3.6315,000——
1985-11-22$3.54$3.542,400——
1985-11-21$3.54$3.5448,000——
1985-11-20$3.54$3.5411,400——
1985-11-19$3.54$3.5416,200——
1985-11-18$3.67$3.6717,400——
1985-11-15$3.54$3.544,800——
1985-11-14$3.54$3.5415,600——
1985-11-13$3.67$3.6725,200——
1985-11-12$3.58$3.5822,200——
1985-11-11$3.54$3.5410,800——
1985-11-08$3.67$3.6769,600——
1985-11-07$3.58$3.581,200——
1985-11-06$3.58$3.5812,600——
1985-11-05$3.58$3.584,200——
1985-11-04$3.67$3.670——
1985-11-01$3.67$3.6737,800——
1985-10-31$3.67$3.676,000——
1985-10-30$3.54$3.5432,400——
1985-10-29$3.60$3.6021,600——
1985-10-28$3.58$3.583,000——
1985-10-25$3.71$3.717,200——
1985-10-24$3.67$3.677,200——
1985-10-23$3.75$3.7513,800——
1985-10-22$3.75$3.7544,400——
1985-10-21$3.50$3.5021,000——
1985-10-18$3.50$3.5012,600——
1985-10-17$3.46$3.461,200——
1985-10-16$3.46$3.461,200——
1985-10-15$3.46$3.46600——
1985-10-14$3.50$3.5025,200——
1985-10-11$3.50$3.505,400——
1985-10-10$3.50$3.504,200——
1985-10-09$3.50$3.5010,200——
1985-10-08$3.46$3.467,800——
1985-10-07$3.33$3.337,200——
1985-10-04$3.33$3.331,800——
1985-10-03$3.33$3.33600——
1985-10-02$3.33$3.333,000——
1985-10-01$3.46$3.4610,200——
1985-09-30$3.29$3.295,400——
1985-09-26$3.33$3.3358,800——
1985-09-25$3.33$3.3321,000——
1985-09-24$3.38$3.3853,400——
1985-09-23$3.38$3.384,800——
1985-09-20$3.38$3.3816,200——
1985-09-19$3.38$3.3814,400——
1985-09-18$3.33$3.33600——
1985-09-17$3.25$3.257,200——
1985-09-16$3.21$3.2116,800——
1985-09-13$3.08$3.0835,400——
1985-09-12$3.08$3.0841,400——
1985-09-11$3.17$3.1722,800——
1985-09-10$3.08$3.0810,800——
1985-09-09$3.00$3.003,600——
1985-09-06$3.00$3.001,800——
1985-09-05$3.04$3.0426,400——
1985-09-04$3.00$3.000——
1985-09-03$3.00$3.003,000——
1985-08-30$3.00$3.000——
1985-08-29$3.00$3.00600——
1985-08-28$3.13$3.130——
1985-08-27$3.13$3.130——
1985-08-26$3.13$3.133,600——
1985-08-23$3.13$3.138,400——
1985-08-22$3.04$3.041,800——
1985-08-21$3.00$3.001,800——
1985-08-20$3.00$3.001,800——
1985-08-19$3.00$3.007,200——
1985-08-16$3.04$3.044,800——
1985-08-15$3.08$3.0821,600——
1985-08-14$3.08$3.0835,400——
1985-08-13$3.04$3.0414,400——
1985-08-12$2.92$2.92600——
1985-08-09$2.94$2.9452,200——
1985-08-08$2.88$2.878,400——
1985-08-07$2.88$2.8716,200——
1985-08-06$2.88$2.873,600——
1985-08-05$2.88$2.87600——
1985-08-02$2.92$2.920——
1985-08-01$2.92$2.9210,200——
1985-07-31$2.90$2.9022,200——
1985-07-30$2.88$2.8710,800——
1985-07-29$2.88$2.876,600——
1985-07-26$2.88$2.8716,200——
1985-07-25$2.88$2.8710,200——
1985-07-24$2.88$2.8721,600——
1985-07-23$2.88$2.872,400——
1985-07-22$2.96$2.9610,200——
1985-07-19$2.88$2.879,600——
1985-07-18$2.92$2.9227,000——
1985-07-17$2.92$2.9229,400——
1985-07-16$2.96$2.964,800——
1985-07-15$2.92$2.923,000——
1985-07-12$2.92$2.9215,600——
1985-07-11$3.00$3.0015,000——
1985-07-10$2.88$2.879,600——
1985-07-09$2.88$2.879,600——
1985-07-08$2.98$2.9843,200——
1985-07-05$2.96$2.960——
1985-07-03$2.96$2.9610,800——
1985-07-02$2.92$2.929,000——
1985-07-01$2.96$2.9632,400——
1985-06-28$2.96$2.9631,800——
1985-06-27$2.96$2.969,000——
1985-06-26$2.96$2.96600——
1985-06-25$3.08$3.0817,400——
1985-06-24$3.08$3.0862,400——
1985-06-21$3.00$3.009,000——
1985-06-20$3.00$3.002,400——
1985-06-19$2.92$2.92600——
1985-06-18$3.00$3.0024,000——
1985-06-17$3.00$3.009,000——
1985-06-14$2.92$2.9228,800——
1985-06-13$2.92$2.9213,200——
1985-06-12$3.00$3.0015,600——
1985-06-11$2.96$2.962,400——
1985-06-10$3.00$3.000——
1985-06-07$3.00$3.001,800——
1985-06-06$3.00$3.0063,000——
1985-06-05$2.88$2.87600——
1985-06-04$3.00$3.006,000——
1985-06-03$3.00$3.0012,600——
1985-05-31$2.88$2.876,600——
1985-05-30$2.88$2.873,600——
1985-05-29$2.88$2.878,400——
1985-05-28$2.94$2.949,600——
1985-05-24$2.92$2.927,800——
1985-05-23$3.04$3.040——
1985-05-22$3.04$3.040——
1985-05-21$3.04$3.040——
1985-05-20$3.04$3.041,800——
1985-05-17$3.04$3.0410,800——
1985-05-16$2.94$2.9448,000——
1985-05-15$3.00$3.001,800——
1985-05-14$2.96$2.9623,400——
1985-05-13$2.92$2.921,200——
1985-05-10$3.04$3.043,000——
1985-05-09$2.92$2.920——
1985-05-08$2.92$2.9222,200——
1985-05-07$2.92$2.924,800——
1985-05-06$2.92$2.921,800——
1985-05-03$2.92$2.920——
1985-05-02$2.92$2.920——
1985-05-01$2.92$2.921,200——
1985-04-30$2.92$2.923,600——
1985-04-29$3.04$3.040——
1985-04-26$3.04$3.044,200——
1985-04-25$3.04$3.0412,000——
1985-04-24$3.04$3.04600——
1985-04-23$3.00$3.0011,400——
1985-04-22$3.04$3.049,000——
1985-04-19$3.04$3.041,200——
1985-04-18$3.04$3.046,000——
1985-04-17$3.04$3.041,200——
1985-04-16$3.04$3.0416,200——
1985-04-15$3.04$3.0418,000——
1985-04-12$3.08$3.080——
1985-04-11$3.08$3.081,800——
1985-04-10$3.08$3.0810,800——
1985-04-09$3.08$3.086,000——
1985-04-08$3.08$3.084,800——
1985-04-04$3.08$3.0823,400——
1985-04-03$3.08$3.084,200——
1985-04-02$3.08$3.088,400——
1985-04-01$3.08$3.081,800——
1985-03-29$3.10$3.1016,800——
1985-03-28$3.08$3.083,600——
1985-03-27$3.08$3.080——
1985-03-26$3.08$3.084,200——
1985-03-25$3.08$3.083,600——
1985-03-22$3.08$3.0818,000——
1985-03-21$3.08$3.080——
1985-03-20$3.08$3.084,200——
1985-03-19$3.08$3.0816,200——
1985-03-18$3.08$3.089,000——
1985-03-15$3.08$3.081,200——
1985-03-14$3.08$3.0820,400——
1985-03-13$3.08$3.0824,000——
1985-03-12$3.08$3.086,000——
1985-03-11$3.08$3.0821,000——
1985-03-08$3.08$3.082,400——
1985-03-07$3.08$3.086,000——
1985-03-06$3.08$3.084,200——
1985-03-05$3.08$3.0812,600——
1985-03-04$3.08$3.0836,600——
1985-03-01$3.08$3.087,200——
1985-02-28$3.08$3.08600——
1985-02-27$3.08$3.0836,600——
1985-02-26$3.08$3.0813,200——
1985-02-25$3.08$3.0814,400——
1985-02-22$3.08$3.0811,400——
1985-02-21$3.08$3.081,800——
1985-02-20$3.08$3.089,000——
1985-02-19$3.08$3.082,400——
1985-02-15$3.08$3.086,000——
1985-02-14$3.08$3.0815,600——
1985-02-13$3.08$3.089,000——
1985-02-12$3.08$3.086,600——
1985-02-11$3.08$3.087,800——
1985-02-08$3.13$3.1316,200——
1985-02-07$3.00$3.001,200——
1985-02-06$3.00$3.0030,000——
1985-02-05$2.96$2.963,600——
1985-02-04$2.96$2.9611,400——
1985-02-01$2.96$2.9619,800——
1985-01-31$2.92$2.929,600——
1985-01-30$2.92$2.928,400——
1985-01-29$2.92$2.926,600——
1985-01-28$2.92$2.929,000——
1985-01-25$2.92$2.924,200——
1985-01-24$2.92$2.9211,400——
1985-01-23$2.83$2.8310,800——
1985-01-22$2.83$2.8318,600——
1985-01-21$2.83$2.836,000——
1985-01-18$2.83$2.8335,400——
1985-01-17$2.79$2.793,600——
1985-01-16$2.75$2.753,000——
1985-01-15$2.75$2.7524,000——
1985-01-14$2.71$2.7110,200——
1985-01-11$2.67$2.676,000——
1985-01-10$2.71$2.714,200——
1985-01-09$2.67$2.6736,600——
1985-01-08$2.67$2.679,000——
1985-01-07$2.67$2.6716,200——
1985-01-04$2.67$2.679,000——
1985-01-03$2.67$2.6740,800——
1985-01-02$2.67$2.679,000——