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 — 1998

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1998-12-31$0.75$0.75168,000
1998-12-30$0.70$0.70124,800
1998-12-29$0.75$0.7554,400
1998-12-28$0.70$0.70134,400
1998-12-24$0.72$0.7239,200
1998-12-23$0.69$0.6998,400
1998-12-22$0.71$0.7152,000
1998-12-21$0.69$0.6940,800
1998-12-18$0.69$0.69103,200
1998-12-17$0.70$0.70100,800
1998-12-16$0.70$0.7019,200
1998-12-15$0.73$0.73412,800
1998-12-14$0.75$0.75142,400
1998-12-11$0.73$0.7382,400
1998-12-10$0.73$0.7329,600
1998-12-09$0.73$0.7390,400
1998-12-08$0.73$0.73517,600
1998-12-07$0.73$0.73420,000
1998-12-04$0.73$0.730
1998-12-03$0.73$0.7341,600
1998-12-02$0.75$0.7535,200
1998-12-01$0.73$0.73100,000
1998-11-30$0.78$0.7881,600
1998-11-27$0.73$0.7321,600
1998-11-25$0.73$0.7390,400
1998-11-24$0.73$0.73106,400
1998-11-23$0.69$0.6920,000
1998-11-20$0.77$0.77156,800
1998-11-19$0.67$0.6735,200
1998-11-18$0.67$0.67206,400
1998-11-17$0.64$0.6455,200
1998-11-16$0.70$0.7076,800
1998-11-13$0.70$0.7019,200
1998-11-12$0.69$0.6952,800
1998-11-11$0.73$0.73112,000
1998-11-10$0.67$0.67136,000
1998-11-09$0.69$0.6961,600
1998-11-06$0.72$0.7283,200
1998-11-05$0.75$0.7513,600
1998-11-04$0.72$0.7272,000
1998-11-03$0.72$0.7233,600
1998-11-02$0.73$0.73151,200
1998-10-30$0.67$0.67316,800
1998-10-29$0.81$0.81221,600
1998-10-28$0.78$0.7839,200
1998-10-27$0.80$0.8064,000
1998-10-26$0.83$0.83351,200
1998-10-23$0.72$0.7284,000
1998-10-22$0.72$0.7293,600
1998-10-21$0.69$0.69321,600
1998-10-20$0.59$0.59233,600
1998-10-19$0.58$0.58171,200
1998-10-16$0.54$0.543,883,200
1998-10-15$0.53$0.531,047,200
1998-10-14$0.56$0.56479,200
1998-10-13$0.55$0.55864,800
1998-10-12$0.59$0.59393,600
1998-10-09$0.58$0.58214,400
1998-10-08$0.58$0.5827,200
1998-10-07$0.56$0.56753,600
1998-10-06$0.66$0.6680,800
1998-10-05$0.64$0.6429,600
1998-10-02$0.63$0.6252,000
1998-10-01$0.61$0.6123,200
1998-09-30$0.63$0.6218,400
1998-09-29$0.66$0.6662,400
1998-09-28$0.66$0.6632,800
1998-09-25$0.57$0.5786,400
1998-09-24$0.56$0.5651,200
1998-09-23$0.55$0.5587,200
1998-09-22$0.53$0.5320,000
1998-09-21$0.58$0.5868,000
1998-09-18$0.61$0.6167,200
1998-09-17$0.56$0.5667,200
1998-09-16$0.55$0.55118,400
1998-09-15$0.53$0.53159,200
1998-09-14$0.58$0.58321,600
1998-09-11$0.52$0.52252,000
1998-09-10$0.53$0.53114,400
1998-09-09$0.66$0.6656,800
1998-09-08$0.66$0.6626,400
1998-09-04$0.65$0.6560,000
1998-09-03$0.67$0.6738,400
1998-09-02$0.69$0.69414,400
1998-09-01$0.69$0.69135,200
1998-08-31$0.78$0.78185,600
1998-08-28$0.87$0.8752,000
1998-08-27$0.84$0.84140,800
1998-08-26$0.84$0.84620,800
1998-08-25$0.84$0.846,400
1998-08-24$0.84$0.84289,600
1998-08-21$0.88$0.88340,000
1998-08-20$0.81$0.81640,000
1998-08-19$0.91$0.918,800
1998-08-18$0.91$0.913,964,800
1998-08-17$0.91$0.9132,000
1998-08-14$0.91$0.917,200
1998-08-13$0.94$0.946,400
1998-08-12$0.91$0.9141,600
1998-08-11$0.91$0.9159,200
1998-08-10$0.97$0.97102,400
1998-08-07$0.97$0.9728,800
1998-08-06$0.97$0.9729,600
1998-08-05$0.97$0.9735,200
1998-08-04$0.98$0.9896,800
1998-08-03$0.97$0.9723,200
1998-07-31$0.97$0.9783,200
1998-07-30$0.99$0.9969,600
1998-07-29$0.99$0.9935,200
1998-07-28$1.00$1.0028,000
1998-07-27$0.97$0.9762,400
1998-07-24$0.98$0.98120,800
1998-07-23$0.98$0.9830,400
1998-07-22$1.00$1.00129,600
1998-07-21$1.05$1.05683,200
1998-07-20$1.02$1.0234,400
1998-07-17$1.05$1.0550,400
1998-07-16$1.05$1.0535,200
1998-07-15$1.05$1.05308,800
1998-07-14$1.05$1.0592,800
1998-07-13$1.05$1.0549,600
1998-07-10$1.06$1.0636,000
1998-07-09$1.08$1.08239,200
1998-07-08$1.07$1.0791,200
1998-07-07$1.08$1.08115,200
1998-07-06$1.08$1.08228,800
1998-07-02$1.08$1.0836,800
1998-07-01$1.06$1.06325,600
1998-06-30$1.06$1.06173,600
1998-06-29$1.06$1.06130,400
1998-06-26$1.07$1.07132,800
1998-06-25$1.08$1.08384,800
1998-06-24$1.06$1.06421,600
1998-06-23$1.00$1.00274,400
1998-06-22$1.11$1.11187,200
1998-06-19$1.14$1.141,476,000
1998-06-18$1.28$1.28212,800
1998-06-17$1.31$1.3137,600
1998-06-16$1.28$1.28244,000
1998-06-15$1.23$1.23136,000
1998-06-12$1.23$1.23192,000
1998-06-11$1.23$1.23134,400
1998-06-10$1.30$1.3036,800
1998-06-09$1.25$1.2581,600
1998-06-08$1.25$1.25308,000
1998-06-05$1.13$1.13182,400
1998-06-04$1.06$1.0688,800
1998-06-03$1.11$1.1122,400
1998-06-02$1.11$1.1188,800
1998-06-01$1.09$1.09109,600
1998-05-29$1.19$1.19291,200
1998-05-28$1.14$1.14203,200
1998-05-27$1.03$1.031,288,000
1998-05-26$1.09$1.09249,600
1998-05-22$1.19$1.1994,400
1998-05-21$1.25$1.25197,600
1998-05-20$1.27$1.27340,000
1998-05-19$1.32$1.3273,600
1998-05-18$1.31$1.3199,200
1998-05-15$1.31$1.3171,200
1998-05-14$1.34$1.34150,400
1998-05-13$1.31$1.31140,800
1998-05-12$1.28$1.2841,600
1998-05-11$1.31$1.3170,400
1998-05-08$1.28$1.28171,200
1998-05-07$1.27$1.27228,000
1998-05-06$1.28$1.2848,800
1998-05-05$1.31$1.3198,400
1998-05-04$1.27$1.27214,400
1998-05-01$1.33$1.33123,200
1998-04-30$1.28$1.2827,200
1998-04-29$1.28$1.28108,800
1998-04-28$1.27$1.2782,400
1998-04-27$1.28$1.28125,600
1998-04-24$1.31$1.31219,200
1998-04-23$1.34$1.34310,400
1998-04-22$1.34$1.3447,200
1998-04-21$1.34$1.34724,800
1998-04-20$1.41$1.4198,400
1998-04-17$1.38$1.37991,200
1998-04-16$1.47$1.4766,400
1998-04-15$1.48$1.481,053,600
1998-04-14$1.48$1.48527,200
1998-04-13$1.45$1.45629,600
1998-04-09$1.44$1.44240,800
1998-04-08$1.38$1.37276,000
1998-04-07$1.41$1.41559,200
1998-04-06$1.38$1.37900,000
1998-04-03$1.27$1.2770,400
1998-04-02$1.26$1.2654,400
1998-04-01$1.25$1.25112,000
1998-03-31$1.25$1.2559,200
1998-03-30$1.25$1.25174,400
1998-03-27$1.26$1.2627,200
1998-03-26$1.25$1.25304,800
1998-03-25$1.23$1.2386,400
1998-03-24$1.25$1.2578,400
1998-03-23$1.25$1.25172,000
1998-03-20$1.26$1.26649,600
1998-03-19$1.24$1.2424,000
1998-03-18$1.24$1.2458,400
1998-03-17$1.25$1.2534,400
1998-03-16$1.27$1.27122,400
1998-03-13$1.25$1.2599,200
1998-03-12$1.25$1.2572,800
1998-03-11$1.25$1.2541,600
1998-03-10$1.24$1.2496,000
1998-03-09$1.25$1.25176,800
1998-03-06$1.25$1.2536,800
1998-03-05$1.25$1.2595,200
1998-03-04$1.24$1.2479,200
1998-03-03$1.25$1.2550,400
1998-03-02$1.23$1.23276,800
1998-02-27$1.25$1.25192,000
1998-02-26$1.23$1.2344,800
1998-02-25$1.22$1.22106,400
1998-02-24$1.23$1.23105,600
1998-02-23$1.23$1.2348,000
1998-02-20$1.23$1.2343,200
1998-02-19$1.25$1.25327,200
1998-02-18$1.20$1.201,796,800
1998-02-17$1.25$1.25296,800
1998-02-13$1.22$1.22432,800
1998-02-12$1.22$1.2246,400
1998-02-11$1.19$1.1986,400
1998-02-10$1.20$1.20207,200
1998-02-09$1.22$1.22380,000
1998-02-06$1.13$1.13221,600
1998-02-05$1.13$1.1376,000
1998-02-04$1.16$1.16221,600
1998-02-03$1.19$1.19192,800
1998-02-02$1.22$1.22272,800
1998-01-30$1.16$1.16129,600
1998-01-29$1.25$1.251,888,000
1998-01-28$1.11$1.1176,000
1998-01-27$1.06$1.0660,000
1998-01-26$1.13$1.1389,600
1998-01-23$1.16$1.1630,400
1998-01-22$1.19$1.1929,600
1998-01-21$1.14$1.1411,200
1998-01-20$1.19$1.1984,000
1998-01-16$1.14$1.1449,600
1998-01-15$1.16$1.1661,600
1998-01-14$1.16$1.16127,200
1998-01-13$1.23$1.2377,600
1998-01-12$1.23$1.23116,000
1998-01-09$1.25$1.25106,400
1998-01-08$1.31$1.3116,800
1998-01-07$1.30$1.30140,000
1998-01-06$1.38$1.3765,600
1998-01-05$1.36$1.36166,400
1998-01-02$1.34$1.34304,800