NASDAQ:EXPO | Stock Price History | 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.

Historical Stock Price

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2026-09-04$68.7229,822
2026-09-03$70.8418,193
2026-09-02$70.5815,502
2026-09-01$70.5211,320
2026-08-31$71.1014,593
2026-08-28$70.7011,613
2026-08-27$71.15$83.54301,700$70.6721,201
2026-08-26$70.34$82.59355,900$70.2311,541
2026-08-25$70.12$82.34368,400$70.5715,107
2026-08-24$70.78$83.11415,500$70.7020,015
2026-08-21$70.21$82.44372,200$69.009,121
2026-08-20$69.38$81.47295,400$68.9711,001
2026-08-19$69.91$82.09391,100$68.4618,304
2026-08-18$67.51$79.27380,500$67.6715,262
2026-08-17$66.19$77.72414,200$66.8318,535
2026-08-14$67.10$78.79263,600$68.5015,597
2026-08-13$68.21$80.09391,400$68.1419,169
2026-08-12$67.64$79.42400,400$67.5525,899
2026-08-11$68.35$80.26366,900$66.9219,639
2026-08-10$67.52$79.28410,100$66.6529,165
2026-08-07$66.79$78.43294,600$66.4317,681
2026-08-06$66.21$77.74410,000$66.8836,751
2026-08-05$66.89$78.54432,800$68.4526,114
2026-08-04$67.84$79.66348,400$68.4615,886
2026-08-03$68.27$80.16585,100$68.1841,233
2026-07-31$66.85$78.501,269,900$65.3448,595
2026-07-30$64.57$75.82775,000$65.3536,099
2026-07-29$65.85$77.32672,000$65.2229,544
2026-07-28$65.00$76.32566,900$63.9828,766
2026-07-27$62.76$73.69529,700$62.0532,866
2026-07-24$61.44$72.14487,500$61.2437,762
2026-07-23$59.98$70.43325,300$60.2926,595
2026-07-22$60.72$71.30513,500$61.0419,994
2026-07-21$60.66$71.23670,800$61.0242,093
2026-07-20$62.68$73.601,038,500$62.9135,105
2026-07-17$62.88$73.83416,800
2026-07-16$64.41$75.63534,600
2026-07-15$62.06$72.87377,300
2026-07-14$62.08$72.89521,000
2026-07-13$63.59$74.67478,700
2026-07-10$62.10$72.92392,200
2026-07-09$62.17$73.00496,800
2026-07-08$60.95$71.57489,200
2026-07-07$62.07$72.88673,000
2026-07-06$61.18$71.84381,200
2026-07-02$60.98$71.60508,000
2026-07-01$59.94$70.38724,200
2026-06-30$58.76$69.00519,800
2026-06-29$59.70$70.10514,500
2026-06-26$60.83$71.431,264,800
2026-06-25$58.00$68.10444,100
2026-06-24$57.94$68.03488,200
2026-06-23$57.35$67.34642,300
2026-06-22$55.87$65.60960,700
2026-06-18$56.89$66.801,398,100
2026-06-17$57.01$66.94818,700
2026-06-16$57.34$67.33361,200
2026-06-15$57.24$67.21450,800
2026-06-12$57.08$67.02377,400
2026-06-11$56.62$66.48733,800
2026-06-10$55.37$65.02493,700
2026-06-09$57.23$67.20627,700
2026-06-08$58.74$68.97929,500
2026-06-05$59.66$70.05547,200
2026-06-04$59.48$69.48607,800
2026-06-03$58.31$68.11549,500
2026-06-02$58.39$68.20693,000
2026-06-01$60.39$70.54688,600
2026-05-29$58.32$68.12814,500
2026-05-28$58.42$68.24446,600
2026-05-27$57.08$66.67519,100
2026-05-26$57.52$67.19363,800
2026-05-22$57.77$67.48374,900
2026-05-21$57.06$66.65358,400
2026-05-20$58.23$68.02775,800
2026-05-19$56.99$66.57602,800
2026-05-18$57.35$66.99793,000
2026-05-15$53.79$62.83664,300
2026-05-14$53.67$62.69491,900
2026-05-13$54.54$63.71972,400
2026-05-12$57.19$66.80705,200
2026-05-11$60.16$70.27416,500
2026-05-08$61.42$71.74394,100
2026-05-07$63.44$74.10306,500
2026-05-06$64.21$75.00363,900
2026-05-05$65.94$77.02366,300
2026-05-04$64.96$75.88588,900
2026-05-01$65.28$76.25848,600
2026-04-30$66.89$78.13432,900
2026-04-29$66.18$77.30313,000
2026-04-28$66.94$78.19452,900
2026-04-27$66.18$77.30484,500
2026-04-24$65.88$76.95390,000
2026-04-23$66.27$77.41598,600
2026-04-22$67.56$78.92270,300
2026-04-21$68.29$79.77424,100
2026-04-20$68.15$79.60293,900
2026-04-17$68.05$79.49875,300
2026-04-16$68.12$79.57455,700
2026-04-15$68.29$79.77400,400