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 — 1986

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1986-12-31$8.17$8.1766,600
1986-12-30$8.00$8.00264,600
1986-12-29$8.25$8.25265,200
1986-12-26$8.50$8.50600
1986-12-24$8.42$8.4260,600
1986-12-23$8.33$8.3384,600
1986-12-22$8.17$8.1759,400
1986-12-19$8.00$8.0088,200
1986-12-18$7.96$7.96214,200
1986-12-17$7.92$7.9242,600
1986-12-16$7.75$7.7524,600
1986-12-15$7.75$7.7522,800
1986-12-12$7.88$7.8842,000
1986-12-11$7.85$7.8564,200
1986-12-10$8.04$8.0419,800
1986-12-09$8.00$8.0028,800
1986-12-08$8.25$8.2527,000
1986-12-05$8.00$8.0042,000
1986-12-04$8.08$8.0840,200
1986-12-03$8.00$8.0018,600
1986-12-02$8.00$8.0039,000
1986-12-01$8.25$8.2584,000
1986-11-28$8.13$8.1215,000
1986-11-26$8.04$8.04154,800
1986-11-25$8.17$8.1770,800
1986-11-24$8.08$8.0813,200
1986-11-21$8.33$8.3337,800
1986-11-20$8.21$8.2124,600
1986-11-19$8.08$8.084,800
1986-11-18$8.08$8.0815,600
1986-11-17$8.08$8.0824,600
1986-11-14$8.29$8.2910,200
1986-11-13$8.08$8.084,200
1986-11-12$8.29$8.2949,800
1986-11-11$8.17$8.1712,000
1986-11-10$8.25$8.2579,200
1986-11-07$8.08$8.087,200
1986-11-06$8.29$8.293,000
1986-11-05$8.17$8.17137,400
1986-11-04$8.17$8.17144,600
1986-11-03$8.25$8.251,800
1986-10-31$8.17$8.179,000
1986-10-30$8.33$8.3320,400
1986-10-29$8.08$8.0819,800
1986-10-28$8.08$8.0835,400
1986-10-27$8.08$8.0812,600
1986-10-24$8.08$8.0842,000
1986-10-23$8.08$8.0817,400
1986-10-22$8.33$8.3337,200
1986-10-21$8.25$8.2520,400
1986-10-20$8.00$8.0021,000
1986-10-17$8.17$8.1712,000
1986-10-16$8.08$8.0819,800
1986-10-15$8.19$8.1943,200
1986-10-14$8.33$8.3321,600
1986-10-13$8.33$8.3317,400
1986-10-10$8.08$8.0856,400
1986-10-09$8.08$8.0851,000
1986-10-08$8.33$8.33157,200
1986-10-07$8.17$8.17185,400
1986-10-06$7.67$7.6777,400
1986-10-03$7.54$7.54195,600
1986-10-02$7.25$7.259,600
1986-10-01$7.08$7.0835,400
1986-09-30$7.08$7.0866,000
1986-09-29$7.08$7.08159,000
1986-09-26$7.08$7.0837,200
1986-09-25$7.04$7.0410,800
1986-09-24$6.92$6.9227,000
1986-09-23$7.08$7.0894,200
1986-09-22$7.08$7.0869,000
1986-09-19$6.00$6.003,000
1986-09-18$6.17$6.177,800
1986-09-17$6.08$6.0821,000
1986-09-16$6.00$6.0046,200
1986-09-15$6.25$6.2521,000
1986-09-12$6.25$6.2534,200
1986-09-11$6.42$6.4258,200
1986-09-10$6.33$6.3315,600
1986-09-09$6.54$6.5440,800
1986-09-08$6.33$6.3331,200
1986-09-05$6.85$6.8559,400
1986-09-04$6.94$6.9466,600
1986-09-03$6.98$6.9819,200
1986-09-02$7.04$7.0431,800
1986-08-29$6.71$6.7151,600
1986-08-28$6.63$6.6324,000
1986-08-27$6.42$6.4220,400
1986-08-26$6.25$6.2520,400
1986-08-25$6.29$6.2934,800
1986-08-22$5.83$5.8340,800
1986-08-21$5.92$5.9223,400
1986-08-20$5.75$5.753,600
1986-08-19$5.92$5.9215,600
1986-08-18$5.75$5.7519,200
1986-08-15$5.92$5.9231,200
1986-08-14$5.75$5.759,000
1986-08-13$5.75$5.7520,400
1986-08-12$5.50$5.5019,800
1986-08-11$5.42$5.421,800
1986-08-08$5.42$5.4215,600
1986-08-07$5.58$5.581,800
1986-08-06$5.42$5.421,200
1986-08-05$5.42$5.421,800
1986-08-04$5.54$5.546,600
1986-08-01$5.46$5.463,600
1986-07-31$5.42$5.42600
1986-07-30$5.42$5.4212,600
1986-07-29$5.42$5.4234,200
1986-07-28$5.58$5.588,400
1986-07-25$5.58$5.585,400
1986-07-24$5.42$5.4212,600
1986-07-23$5.58$5.583,000
1986-07-22$5.42$5.4213,200
1986-07-21$5.50$5.5033,600
1986-07-18$5.58$5.581,200
1986-07-17$5.63$5.6321,600
1986-07-16$5.83$5.8314,400
1986-07-15$5.79$5.7992,400
1986-07-14$5.92$5.921,800
1986-07-11$5.83$5.833,000
1986-07-10$5.83$5.839,600
1986-07-09$5.83$5.8317,400
1986-07-08$5.92$5.9248,600
1986-07-07$5.83$5.8358,200
1986-07-03$5.83$5.8330,600
1986-07-02$5.71$5.714,800
1986-07-01$5.83$5.8328,200
1986-06-30$5.83$5.83145,200
1986-06-27$5.46$5.4628,800
1986-06-26$5.42$5.4290,600
1986-06-25$5.17$5.1775,000
1986-06-24$5.00$5.007,800
1986-06-23$4.92$4.9270,800
1986-06-20$4.83$4.832,400
1986-06-19$4.83$4.836,000
1986-06-18$4.83$4.830
1986-06-17$4.83$4.83600
1986-06-16$4.83$4.832,400
1986-06-13$4.83$4.83600
1986-06-12$4.88$4.8816,200
1986-06-11$4.96$4.962,400
1986-06-10$4.96$4.9634,800
1986-06-09$4.88$4.8812,000
1986-06-06$4.96$4.960
1986-06-05$4.96$4.961,800
1986-06-04$4.96$4.9620,400
1986-06-03$4.96$4.969,600
1986-06-02$4.96$4.969,000
1986-05-30$4.96$4.961,200
1986-05-29$4.96$4.969,600
1986-05-28$4.92$4.926,600
1986-05-27$4.88$4.884,800
1986-05-23$4.88$4.884,200
1986-05-22$4.88$4.8819,800
1986-05-21$4.83$4.839,000
1986-05-20$4.83$4.837,200
1986-05-19$4.92$4.9218,000
1986-05-16$4.92$4.921,800
1986-05-15$4.88$4.8818,600
1986-05-14$4.83$4.838,400
1986-05-13$4.75$4.754,800
1986-05-12$4.75$4.753,000
1986-05-09$4.83$4.831,200
1986-05-08$4.75$4.752,400
1986-05-07$4.75$4.754,800
1986-05-06$4.79$4.796,000
1986-05-05$4.83$4.834,800
1986-05-02$4.75$4.75600
1986-05-01$4.83$4.838,400
1986-04-30$4.83$4.8321,600
1986-04-29$4.83$4.830
1986-04-28$4.83$4.833,000
1986-04-25$4.75$4.7512,600
1986-04-24$4.75$4.7527,600
1986-04-23$4.67$4.6718,000
1986-04-22$4.75$4.7512,600
1986-04-21$4.69$4.6933,600
1986-04-18$4.75$4.750
1986-04-17$4.75$4.759,600
1986-04-16$4.75$4.7516,200
1986-04-15$4.71$4.7116,800
1986-04-14$4.75$4.7545,000
1986-04-11$4.63$4.6224,600
1986-04-10$4.71$4.7110,800
1986-04-09$4.63$4.622,400
1986-04-08$4.71$4.712,400
1986-04-07$4.58$4.581,800
1986-04-04$4.63$4.6261,200
1986-04-03$4.50$4.5015,000
1986-04-02$4.46$4.4619,200
1986-04-01$4.54$4.541,800
1986-03-31$4.46$4.4613,200
1986-03-27$4.58$4.5818,600
1986-03-26$4.50$4.509,600
1986-03-25$4.50$4.5034,200
1986-03-24$4.58$4.5821,000
1986-03-21$4.58$4.5867,200
1986-03-20$4.46$4.4610,800
1986-03-19$4.50$4.50181,800
1986-03-18$4.67$4.6743,200
1986-03-17$4.63$4.6218,600
1986-03-14$4.67$4.6754,000
1986-03-13$4.75$4.7528,200
1986-03-12$4.67$4.6718,600
1986-03-11$4.79$4.79101,400
1986-03-10$4.92$4.9222,200
1986-03-07$5.00$5.0093,600
1986-03-06$4.92$4.9279,200
1986-03-05$4.67$4.678,400
1986-03-04$4.50$4.5027,600
1986-03-03$4.25$4.2530,000
1986-02-28$4.25$4.2511,400
1986-02-27$4.29$4.2913,200
1986-02-26$4.31$4.317,200
1986-02-25$4.25$4.254,200
1986-02-24$4.25$4.259,000
1986-02-21$4.33$4.336,000
1986-02-20$4.27$4.2710,200
1986-02-19$4.25$4.2522,800
1986-02-18$4.21$4.216,000
1986-02-14$4.17$4.1724,000
1986-02-13$4.17$4.1710,200
1986-02-12$4.08$4.0815,000
1986-02-11$4.08$4.0828,200
1986-02-10$4.13$4.128,400
1986-02-07$4.08$4.081,800
1986-02-06$4.04$4.046,600
1986-02-05$4.00$4.0015,600
1986-02-04$4.08$4.087,200
1986-02-03$4.08$4.081,800
1986-01-31$4.08$4.0866,000
1986-01-30$4.00$4.0025,200
1986-01-29$3.88$3.8829,400
1986-01-28$3.92$3.921,200
1986-01-27$3.83$3.839,000
1986-01-24$3.79$3.7912,600
1986-01-23$3.79$3.7921,600
1986-01-22$3.83$3.831,200
1986-01-21$3.75$3.750
1986-01-20$3.75$3.75600
1986-01-17$3.83$3.834,200
1986-01-16$3.75$3.7525,200
1986-01-15$3.75$3.7534,200
1986-01-14$3.67$3.6728,200
1986-01-13$3.71$3.714,200
1986-01-10$3.67$3.679,000
1986-01-09$3.65$3.6515,000
1986-01-08$3.69$3.6931,800
1986-01-07$3.58$3.5822,200
1986-01-06$3.54$3.5418,600
1986-01-03$3.54$3.542,400
1986-01-02$3.67$3.673,000