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 — 2006

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2006-12-29$50.63$77.33108,700
2006-12-28$51.08$78.0269,800
2006-12-27$51.23$78.25183,000
2006-12-26$50.86$77.6863,700
2006-12-22$50.13$76.5791,300
2006-12-21$50.36$76.9286,200
2006-12-20$50.44$77.0468,300
2006-12-19$50.49$77.12107,300
2006-12-18$50.27$76.78108,400
2006-12-15$50.65$77.36220,000
2006-12-14$50.55$77.21101,000
2006-12-13$50.07$76.4754,400
2006-12-12$49.78$76.0369,700
2006-12-11$49.59$75.7445,300
2006-12-08$49.39$75.4494,300
2006-12-07$49.28$75.2789,300
2006-12-06$49.66$75.85116,400
2006-12-05$50.18$76.6472,300
2006-12-04$50.13$76.57118,100
2006-12-01$49.20$75.15161,600
2006-11-30$49.53$75.65131,200
2006-11-29$49.56$75.70108,600
2006-11-28$48.85$74.61107,400
2006-11-27$48.98$74.81189,300
2006-11-24$50.17$76.6332,900
2006-11-22$50.25$76.7561,300
2006-11-21$50.37$76.9365,000
2006-11-20$50.44$77.04113,600
2006-11-17$50.37$76.93138,300
2006-11-16$50.53$77.18116,200
2006-11-15$50.38$76.95122,300
2006-11-14$49.99$76.35143,800
2006-11-13$49.46$75.5496,500
2006-11-10$49.28$75.2757,200
2006-11-09$48.91$74.70107,700
2006-11-08$49.37$75.41103,700
2006-11-07$49.13$75.04123,700
2006-11-06$48.92$74.72132,900
2006-11-03$48.36$73.86132,000
2006-11-02$48.33$73.82221,700
2006-11-01$49.08$74.44158,800
2006-10-31$49.85$75.61106,100
2006-10-30$50.20$76.14163,800
2006-10-27$49.94$75.7597,200
2006-10-26$50.35$76.37163,100
2006-10-25$49.75$75.46163,100
2006-10-24$49.40$74.93159,000
2006-10-23$49.91$75.70148,100
2006-10-20$49.68$75.35146,000
2006-10-19$50.25$76.22148,400
2006-10-18$50.49$76.58179,600
2006-10-17$50.88$77.17146,600
2006-10-16$51.42$77.99117,500
2006-10-13$51.47$78.0787,700
2006-10-12$51.12$77.54108,200
2006-10-11$50.50$76.60123,300
2006-10-10$50.79$77.04103,400
2006-10-09$50.88$77.17123,800
2006-10-06$50.60$76.7592,000
2006-10-05$50.86$77.14187,700
2006-10-04$50.02$75.87241,100
2006-10-03$49.65$75.31112,700
2006-10-02$49.91$75.70109,100
2006-09-29$50.51$76.61174,400
2006-09-28$51.10$77.51115,400
2006-09-27$50.98$77.3396,100
2006-09-26$50.70$76.9083,400
2006-09-25$50.72$76.9372,800
2006-09-22$49.76$75.47114,500
2006-09-21$50.30$76.29102,600
2006-09-20$50.86$77.14118,500
2006-09-19$49.87$75.64179,200
2006-09-18$49.96$75.78117,900
2006-09-15$50.66$76.84411,600
2006-09-14$49.71$75.40116,700
2006-09-13$50.04$75.90248,800
2006-09-12$49.09$74.46225,400
2006-09-11$47.95$72.73110,200
2006-09-08$47.60$72.20181,400
2006-09-07$47.52$72.08198,200
2006-09-06$47.44$71.9662,900
2006-09-05$48.00$72.81113,700
2006-09-01$47.75$72.4360,100
2006-08-31$47.83$72.5595,500
2006-08-30$47.95$72.73113,000
2006-08-29$47.96$72.7495,200
2006-08-28$47.89$72.6494,000
2006-08-25$47.26$71.6869,600
2006-08-24$47.30$71.74114,100
2006-08-23$47.19$71.58126,600
2006-08-22$48.17$73.06130,000
2006-08-21$47.77$72.46107,100
2006-08-18$47.97$72.76126,000
2006-08-17$48.06$72.9075,200
2006-08-16$48.13$73.00138,100
2006-08-15$48.18$73.0889,400
2006-08-14$47.31$71.76113,500
2006-08-11$47.55$72.1282,300
2006-08-10$47.67$72.30172,800
2006-08-09$47.10$71.44176,100
2006-08-08$47.56$72.14187,500
2006-08-07$48.20$73.11136,600
2006-08-04$48.67$73.82127,500
2006-08-03$48.37$73.37229,300
2006-08-02$48.12$72.50100,900
2006-08-01$47.82$72.05144,900
2006-07-31$48.11$72.49190,300
2006-07-28$48.38$72.89245,100
2006-07-27$47.09$70.95175,600
2006-07-26$47.31$71.28214,600
2006-07-25$46.85$70.59264,300
2006-07-24$47.17$71.07128,400
2006-07-21$46.19$69.59366,500
2006-07-20$46.65$70.29250,800
2006-07-19$47.84$72.08293,800
2006-07-18$47.00$70.81298,200
2006-07-17$46.40$69.91131,600
2006-07-14$46.21$69.62283,700
2006-07-13$46.14$69.52214,600
2006-07-12$46.83$70.56187,100
2006-07-11$47.85$72.10363,500
2006-07-10$47.71$71.8898,200
2006-07-07$47.64$71.78105,100
2006-07-06$48.10$72.47113,000
2006-07-05$48.01$72.34217,900
2006-07-03$49.36$74.3791,200
2006-06-30$48.97$73.78289,700
2006-06-29$49.25$74.20177,200
2006-06-28$47.73$71.91130,600
2006-06-27$47.63$71.76158,000
2006-06-26$48.34$72.83123,000
2006-06-23$47.56$71.66284,200
2006-06-22$47.97$72.28176,900
2006-06-21$48.41$72.94292,900
2006-06-20$48.69$73.36178,100
2006-06-19$48.80$73.53249,100
2006-06-16$49.09$73.96534,300
2006-06-15$49.78$75.00143,600
2006-06-14$48.51$73.09206,800
2006-06-13$48.92$73.71298,700
2006-06-12$49.10$73.98236,300
2006-06-09$49.52$74.61139,200
2006-06-08$50.01$75.35307,800
2006-06-07$49.05$73.90202,700
2006-06-06$48.64$73.29238,000
2006-06-05$47.97$72.28219,800
2006-06-02$49.51$74.60183,600
2006-06-01$49.64$74.79256,200
2006-05-31$48.54$73.13403,300
2006-05-30$48.40$72.92439,200
2006-05-26$50.10$75.49199,200
2006-05-25$49.81$75.05720,200
2006-05-24$51.40$77.44217,900
2006-05-23$50.87$76.65194,600
2006-05-22$51.53$77.64196,100
2006-05-19$51.15$77.07264,100
2006-05-18$50.58$76.21192,600
2006-05-17$50.94$76.75206,300
2006-05-16$51.94$78.26135,700
2006-05-15$51.88$78.17151,800
2006-05-12$51.32$77.32173,900
2006-05-11$51.47$77.55241,200
2006-05-10$51.88$78.17137,200
2006-05-09$52.01$78.36117,900
2006-05-08$51.90$78.20112,000
2006-05-05$52.10$78.50148,100
2006-05-04$50.93$76.7490,700
2006-05-03$51.00$76.36118,500
2006-05-02$50.95$76.28161,300
2006-05-01$50.69$75.89123,500
2006-04-28$51.14$76.57217,000
2006-04-27$50.94$76.27301,900
2006-04-26$50.86$76.15121,800
2006-04-25$50.86$76.15114,300
2006-04-24$50.77$76.0192,600
2006-04-21$51.39$76.94201,400
2006-04-20$51.36$76.90157,300
2006-04-19$51.63$77.30300,600
2006-04-18$52.89$79.19150,400
2006-04-17$51.00$76.3671,200
2006-04-13$51.21$76.6770,000
2006-04-12$51.06$76.45147,500
2006-04-11$51.29$76.79114,100
2006-04-10$51.84$77.62108,100
2006-04-07$51.57$77.21118,600
2006-04-06$51.84$77.6289,100
2006-04-05$52.15$78.08118,500
2006-04-04$51.97$77.81113,700
2006-04-03$51.69$77.39196,400
2006-03-31$51.92$77.74195,000
2006-03-30$51.82$77.59283,200
2006-03-29$51.81$77.57291,500
2006-03-28$51.90$77.71229,400
2006-03-27$52.76$78.9966,400
2006-03-24$53.41$79.9763,700
2006-03-23$53.12$79.5377,600
2006-03-22$53.40$79.95123,600
2006-03-21$52.54$78.66175,700
2006-03-20$53.88$80.67121,800
2006-03-17$53.97$80.81429,800
2006-03-16$53.18$79.62124,300
2006-03-15$53.72$80.4382,400
2006-03-14$53.79$80.54124,400
2006-03-13$53.05$79.4391,200
2006-03-10$53.12$79.5366,500
2006-03-09$52.33$78.35160,900
2006-03-08$53.11$79.52193,000
2006-03-07$52.84$79.1194,000
2006-03-06$52.76$78.99192,300
2006-03-03$52.90$79.20203,000
2006-03-02$52.92$79.23504,000
2006-03-01$54.59$81.73155,800
2006-02-28$54.24$81.21137,200
2006-02-27$55.03$82.3968,800
2006-02-24$54.81$82.06120,700
2006-02-23$54.54$81.66158,200
2006-02-22$54.78$82.02139,900
2006-02-21$54.24$81.21114,100
2006-02-17$54.27$81.25164,400
2006-02-16$54.96$82.29124,500
2006-02-15$54.98$82.32113,600
2006-02-14$54.38$81.42174,200
2006-02-13$53.84$80.61169,700
2006-02-10$53.79$80.54155,700
2006-02-09$53.61$80.27128,400
2006-02-08$53.97$80.81217,600
2006-02-07$53.82$80.58203,200
2006-02-06$53.98$80.82101,800
2006-02-03$53.39$79.94128,000
2006-02-02$53.38$79.92133,700
2006-02-01$53.67$79.88141,100
2006-01-31$53.82$80.1075,500
2006-01-30$53.38$79.45118,300
2006-01-27$53.94$80.2875,100
2006-01-26$53.69$79.9191,100
2006-01-25$52.48$78.11186,200
2006-01-24$52.71$78.45133,900
2006-01-23$52.15$77.62138,400
2006-01-20$51.92$77.27292,100
2006-01-19$54.14$80.5851,300
2006-01-18$53.55$79.7074,800
2006-01-17$53.69$79.9184,200
2006-01-13$53.77$80.0372,200
2006-01-12$53.76$80.01114,500
2006-01-11$54.72$81.4478,600
2006-01-10$54.97$81.81161,800
2006-01-09$55.10$82.01100,100
2006-01-06$55.03$81.90166,600
2006-01-05$54.85$81.63160,800
2006-01-04$54.87$81.66217,500
2006-01-03$54.44$81.02163,900