NASDAQ:EXPO | Historical Stock Price | EXPONENT INC

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
1990-08-17 to 2026-09-04
Data captured

Stock Price Chart

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

$0.49$1.53$4.78$14.93$46.62$145.611990-08-172026-08-27

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

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Historical Stock Price — 1990

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1990-12-31$2.16$2.16700,000
1990-12-28$2.19$2.19334,400
1990-12-27$2.22$2.2276,800
1990-12-26$2.31$2.310
1990-12-24$2.31$2.3134,400
1990-12-21$2.22$2.22336,000
1990-12-20$2.22$2.22342,400
1990-12-19$2.44$2.44517,600
1990-12-18$2.25$2.2552,000
1990-12-17$2.13$2.12298,400
1990-12-14$2.16$2.160
1990-12-13$2.16$2.1636,000
1990-12-12$2.09$2.0954,400
1990-12-11$2.19$2.19256,000
1990-12-10$2.25$2.258,000
1990-12-07$2.28$2.28204,800
1990-12-06$2.28$2.28111,200
1990-12-05$2.16$2.16229,600
1990-12-04$2.16$2.1624,800
1990-12-03$2.13$2.12103,200
1990-11-30$2.13$2.12800
1990-11-29$2.06$2.0683,200
1990-11-28$2.09$2.098,800
1990-11-27$2.09$2.0964,800
1990-11-26$2.06$2.0616,000
1990-11-23$2.09$2.09152,000
1990-11-21$2.09$2.09166,400
1990-11-20$2.06$2.06324,000
1990-11-19$2.00$2.00617,600
1990-11-16$2.19$2.19239,200
1990-11-15$2.25$2.25313,600
1990-11-14$2.19$2.1972,000
1990-11-13$2.19$2.19460,800
1990-11-12$2.22$2.22572,000
1990-11-09$2.02$2.02188,000
1990-11-08$1.94$1.94162,400
1990-11-07$2.09$2.0911,200
1990-11-06$2.09$2.0935,200
1990-11-05$2.16$2.16296,000
1990-11-02$2.19$2.198,000
1990-11-01$2.25$2.25228,800
1990-10-31$2.22$2.2284,800
1990-10-30$2.13$2.1265,600
1990-10-29$2.16$2.16129,600
1990-10-26$2.22$2.22517,600
1990-10-25$2.28$2.281,026,400
1990-10-24$2.19$2.1915,200
1990-10-23$2.19$2.19248,800
1990-10-22$2.22$2.22244,000
1990-10-19$1.94$1.94223,200
1990-10-18$1.97$1.97184,800
1990-10-17$1.88$1.8752,800
1990-10-16$1.95$1.95145,600
1990-10-15$1.94$1.9481,600
1990-10-12$1.97$1.9774,400
1990-10-11$2.00$2.0040,000
1990-10-10$1.97$1.9725,600
1990-10-09$2.00$2.00110,400
1990-10-08$2.03$2.0348,800
1990-10-05$2.00$2.00186,400
1990-10-04$2.03$2.03226,400
1990-10-03$2.08$2.08609,600
1990-10-02$2.11$2.111,228,000
1990-10-01$1.91$1.9138,400
1990-09-28$1.91$1.911,484,000
1990-09-27$1.95$1.951,263,200
1990-09-26$1.94$1.94509,600
1990-09-25$1.95$1.951,116,000
1990-09-24$1.94$1.94673,600
1990-09-21$2.03$2.03580,000
1990-09-20$1.97$1.97536,800
1990-09-19$1.94$1.94165,600
1990-09-18$1.91$1.915,600
1990-09-17$1.94$1.94590,400
1990-09-14$1.91$1.91372,000
1990-09-13$1.91$1.911,839,200
1990-09-12$1.97$1.97225,600
1990-09-11$2.00$2.00113,600
1990-09-10$2.03$2.03365,600
1990-09-07$2.02$2.02164,000
1990-09-06$2.03$2.03916,000
1990-09-05$1.97$1.979,600
1990-09-04$1.94$1.94196,800
1990-08-31$1.97$1.97720,800
1990-08-30$2.02$2.02268,000
1990-08-29$1.97$1.97464,800
1990-08-28$2.02$2.02600,800
1990-08-27$2.05$2.05531,200
1990-08-24$1.91$1.91767,200
1990-08-23$1.88$1.872,606,400
1990-08-22$1.97$1.97642,400
1990-08-21$1.89$1.895,016,000
1990-08-20$1.88$1.872,821,600
1990-08-17$1.81$1.8117,904,800