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 — 2015

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2015-12-31$24.98$25.91189,200
2015-12-30$25.45$26.40125,600
2015-12-29$25.67$26.6285,600
2015-12-28$25.37$26.31123,800
2015-12-24$25.32$26.2663,200
2015-12-23$25.25$26.1995,000
2015-12-22$25.14$26.08114,400
2015-12-21$25.00$25.93118,800
2015-12-18$24.99$25.92846,800
2015-12-17$25.43$26.39129,600
2015-12-16$25.75$26.71230,400
2015-12-15$25.68$26.64229,600
2015-12-14$25.72$26.68317,200
2015-12-11$25.53$26.48334,000
2015-12-10$25.79$26.75160,000
2015-12-09$26.03$27.00262,400
2015-12-08$26.59$27.58206,000
2015-12-07$27.04$28.04272,400
2015-12-04$27.09$28.10226,400
2015-12-03$26.29$27.27318,200
2015-12-02$26.25$27.23127,000
2015-12-01$25.96$26.92153,000
2015-11-30$25.82$26.78201,200
2015-11-27$26.04$27.0172,600
2015-11-25$25.84$26.8191,600
2015-11-24$25.72$26.6889,800
2015-11-23$25.67$26.55124,800
2015-11-20$25.76$26.64186,800
2015-11-19$25.30$26.16133,400
2015-11-18$25.41$26.28132,800
2015-11-17$25.25$26.11120,800
2015-11-16$25.56$26.44155,200
2015-11-13$25.23$26.09254,600
2015-11-12$25.47$26.34169,200
2015-11-11$25.79$26.67107,400
2015-11-10$25.77$26.65185,600
2015-11-09$25.63$26.51138,000
2015-11-06$25.82$26.70124,000
2015-11-05$25.53$26.40150,200
2015-11-04$25.51$26.39115,800
2015-11-03$25.55$26.43172,400
2015-11-02$25.67$26.56209,200
2015-10-30$25.71$26.59294,200
2015-10-29$25.80$26.68287,000
2015-10-28$26.00$26.89412,400
2015-10-27$25.92$26.81244,400
2015-10-26$26.12$27.02333,200
2015-10-23$26.50$27.41283,800
2015-10-22$26.43$27.34701,600
2015-10-21$24.34$25.18215,000
2015-10-20$24.75$25.59198,800
2015-10-19$24.40$25.24222,400
2015-10-16$24.20$25.03247,400
2015-10-15$24.21$25.04257,400
2015-10-14$24.34$25.18237,400
2015-10-13$24.53$25.37279,200
2015-10-12$24.95$25.80184,200
2015-10-09$24.82$25.67210,800
2015-10-08$24.79$25.64272,000
2015-10-07$24.57$25.41285,600
2015-10-06$23.78$24.60366,200
2015-10-05$23.70$24.51273,000
2015-10-02$22.95$23.74407,400
2015-10-01$22.58$23.36360,400
2015-09-30$22.28$23.04440,600
2015-09-29$22.27$23.03418,400
2015-09-28$22.46$23.23473,000
2015-09-25$22.20$22.96170,200
2015-09-24$22.16$22.92194,000
2015-09-23$21.73$22.47170,800
2015-09-22$21.60$22.34142,200
2015-09-21$21.83$22.58178,000
2015-09-18$21.59$22.34286,600
2015-09-17$21.89$22.64141,800
2015-09-16$21.99$22.7490,600
2015-09-15$21.97$22.72125,000
2015-09-14$21.73$22.47152,400
2015-09-11$21.83$22.58109,600
2015-09-10$21.76$22.51157,200
2015-09-09$21.48$22.21152,200
2015-09-08$21.67$22.42198,000
2015-09-04$21.15$21.87138,400
2015-09-03$21.26$21.99176,800
2015-09-02$21.17$21.90242,000
2015-09-01$21.01$21.66265,800
2015-08-31$21.38$22.03220,800
2015-08-28$21.36$22.01202,200
2015-08-27$21.22$21.87268,600
2015-08-26$21.05$21.69239,000
2015-08-25$20.54$21.17219,800
2015-08-24$20.65$21.28219,400
2015-08-21$21.42$22.07360,000
2015-08-20$21.43$22.09140,200
2015-08-19$21.70$22.36132,000
2015-08-18$21.92$22.6098,000
2015-08-17$22.08$22.76148,200
2015-08-14$21.89$22.56131,000
2015-08-13$21.71$22.37207,800
2015-08-12$21.89$22.56155,800
2015-08-11$21.53$22.19255,800
2015-08-10$21.76$22.43257,800
2015-08-07$21.80$22.46198,000
2015-08-06$21.91$22.58143,000
2015-08-05$22.15$22.83125,800
2015-08-04$22.06$22.7495,600
2015-08-03$22.09$22.77205,400
2015-07-31$22.25$22.93197,000
2015-07-30$22.17$22.84208,800
2015-07-29$22.20$22.87210,600
2015-07-28$22.13$22.80266,800
2015-07-27$22.12$22.79276,600
2015-07-24$21.94$22.61284,600
2015-07-23$22.17$22.85457,800
2015-07-22$22.66$23.35994,400
2015-07-21$22.61$23.30182,600
2015-07-20$22.80$23.50280,000
2015-07-17$23.01$23.71189,400
2015-07-16$23.18$23.90135,000
2015-07-15$22.97$23.67273,200
2015-07-14$23.18$23.89245,600
2015-07-13$23.24$23.95254,800
2015-07-10$23.27$23.98288,200
2015-07-09$22.72$23.41262,600
2015-07-08$22.58$23.27339,400
2015-07-07$22.63$23.32230,600
2015-07-06$22.62$23.31233,400
2015-07-02$22.48$23.17177,000
2015-07-01$22.46$23.14277,000
2015-06-30$22.39$23.08244,000
2015-06-29$22.15$22.82267,200
2015-06-26$22.50$23.19652,400
2015-06-25$22.31$22.99164,000
2015-06-24$22.25$22.93225,200
2015-06-23$22.32$23.00256,400
2015-06-22$22.11$22.78203,000
2015-06-19$21.88$22.55280,800
2015-06-18$21.70$22.36221,400
2015-06-17$21.35$22.00127,200
2015-06-16$21.38$22.03247,400
2015-06-15$20.89$21.52179,000
2015-06-12$21.30$21.95115,600
2015-06-11$21.48$22.14106,400
2015-06-10$21.57$22.23271,400
2015-06-09$21.48$22.06220,800
2015-06-08$21.58$22.16203,800
2015-06-05$21.71$22.30292,400
2015-06-04$21.17$21.75413,600
2015-06-03$21.37$21.95487,600
2015-06-02$21.24$21.82352,800
2015-06-01$21.23$21.81258,400
2015-05-29$21.28$21.86229,600
2015-05-28$21.25$21.82182,400
2015-05-27$21.28$21.85386,800
2015-05-26$21.48$22.06342,400
2015-05-22$21.56$22.14227,200
2015-05-21$21.54$22.12298,800
2015-05-20$21.71$22.29185,200
2015-05-19$21.67$22.26463,600
2015-05-18$21.31$21.89441,200
2015-05-15$21.34$21.91251,200
2015-05-14$21.45$22.03193,200
2015-05-13$21.62$22.20115,200
2015-05-12$21.56$22.14166,400
2015-05-11$21.71$22.30148,000
2015-05-08$21.62$22.20212,400
2015-05-07$21.90$22.49147,200
2015-05-06$21.86$22.45182,000
2015-05-05$21.76$22.35253,600
2015-05-04$22.15$22.74232,000
2015-05-01$22.08$22.68184,800
2015-04-30$22.15$22.75347,200
2015-04-29$23.02$23.64178,800
2015-04-28$23.55$24.19221,200
2015-04-27$23.43$24.06630,000
2015-04-24$23.84$24.48500,400
2015-04-23$23.82$24.47549,200
2015-04-22$22.28$22.88109,600
2015-04-21$22.28$22.88114,800
2015-04-20$22.39$22.99135,600
2015-04-17$21.87$22.46131,200
2015-04-16$22.32$22.92141,600
2015-04-15$22.50$23.10151,600
2015-04-14$22.41$23.01106,800
2015-04-13$22.40$23.01132,000
2015-04-10$22.44$23.0497,600
2015-04-09$22.29$22.9076,800
2015-04-08$22.39$23.0082,000
2015-04-07$22.26$22.86185,200
2015-04-06$22.39$22.99156,800
2015-04-02$22.27$22.8788,800
2015-04-01$22.04$22.63144,000
2015-03-31$22.23$22.83134,400
2015-03-30$22.25$22.86214,800
2015-03-27$22.24$22.84160,000
2015-03-26$21.86$22.45116,000
2015-03-25$21.92$22.52186,800
2015-03-24$22.38$22.98212,400
2015-03-23$22.10$22.69171,200
2015-03-20$22.13$22.73329,600
2015-03-19$21.94$22.53141,200
2015-03-18$22.13$22.73233,600
2015-03-17$22.27$22.87222,400
2015-03-16$22.05$22.65101,600
2015-03-13$21.89$22.48144,800
2015-03-12$22.25$22.86244,000
2015-03-11$21.60$22.19228,000
2015-03-10$21.43$22.01224,000
2015-03-09$21.75$22.34149,600
2015-03-06$21.22$21.80216,000
2015-03-05$21.64$22.22222,400
2015-03-04$21.59$22.18165,600
2015-03-03$21.81$22.32210,000
2015-03-02$21.95$22.46163,200
2015-02-27$21.63$22.14111,200
2015-02-26$21.75$22.26108,400
2015-02-25$21.74$22.25133,200
2015-02-24$21.81$22.32245,200
2015-02-23$21.85$22.36180,000
2015-02-20$22.01$22.53264,400
2015-02-19$22.35$22.87190,800
2015-02-18$22.58$23.12219,600
2015-02-17$22.16$22.68116,400
2015-02-13$22.10$22.62137,600
2015-02-12$22.11$22.63200,400
2015-02-11$21.90$22.42144,800
2015-02-10$21.98$22.49320,800
2015-02-09$22.20$22.72378,400
2015-02-06$22.64$23.17313,200
2015-02-05$22.53$23.05572,000
2015-02-04$20.76$21.25124,400
2015-02-03$20.76$21.25169,600
2015-02-02$20.24$20.72111,200
2015-01-30$20.04$20.51179,600
2015-01-29$20.69$21.1797,600
2015-01-28$20.29$20.76115,200
2015-01-27$20.62$21.10166,800
2015-01-26$20.65$21.14120,800
2015-01-23$20.64$21.12174,000
2015-01-22$20.69$21.17226,400
2015-01-21$20.24$20.71104,000
2015-01-20$20.12$20.59174,800
2015-01-16$20.60$21.09221,200
2015-01-15$20.49$20.97232,800
2015-01-14$20.50$20.98116,800
2015-01-13$20.68$21.17224,400
2015-01-12$20.17$20.64252,800
2015-01-09$20.22$20.70140,800
2015-01-08$20.50$20.98341,200
2015-01-07$20.19$20.66156,800
2015-01-06$19.87$20.34278,800
2015-01-05$20.15$20.62127,600
2015-01-02$20.27$20.75120,800