NYSE:AJG | Historical Stock Price | Arthur J. Gallagher & Co.

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
1984-06-20 to 2026-09-04
Data captured

Stock Price Chart

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

$1.72$6.20$22.31$80.29$288.98$1,040.131984-06-202026-08-27

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

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Historical Stock Price — 2000

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2000-12-29$31.81$44.94757,800
2000-12-28$33.56$47.41358,000
2000-12-27$33.66$47.54233,800
2000-12-26$33.06$46.54310,200
2000-12-22$32.41$45.62250,400
2000-12-21$31.91$44.91367,600
2000-12-20$31.94$44.96533,000
2000-12-19$32.13$45.22473,800
2000-12-18$32.88$46.28488,600
2000-12-15$32.56$45.84859,400
2000-12-14$32.34$45.53651,400
2000-12-13$33.03$46.501,105,200
2000-12-12$33.50$47.164,420,000
2000-12-11$32.13$45.22662,400
2000-12-08$30.44$42.85410,400
2000-12-07$31.59$44.47724,000
2000-12-06$29.88$42.06509,200
2000-12-05$29.50$41.53424,400
2000-12-04$29.28$41.22250,400
2000-12-01$30.09$42.36181,000
2000-11-30$29.50$41.53191,800
2000-11-29$30.00$42.23233,800
2000-11-28$29.28$41.22149,600
2000-11-27$29.78$41.92218,800
2000-11-24$29.97$42.1986,000
2000-11-22$29.03$40.87199,800
2000-11-21$30.00$42.23235,200
2000-11-20$30.06$42.32442,800
2000-11-17$30.59$43.07157,800
2000-11-16$30.69$43.20240,400
2000-11-15$31.28$44.03129,800
2000-11-14$30.00$42.23126,200
2000-11-13$29.34$41.31178,000
2000-11-10$30.00$42.23187,400
2000-11-09$30.22$42.54191,400
2000-11-08$30.06$42.32136,400
2000-11-07$30.13$42.41405,200
2000-11-06$29.56$41.62305,600
2000-11-03$30.00$42.23320,400
2000-11-02$31.22$43.95199,400
2000-11-01$31.09$43.77246,200
2000-10-31$31.56$44.43369,000
2000-10-30$30.75$43.29381,600
2000-10-27$29.78$41.92304,800
2000-10-26$29.78$41.92503,400
2000-10-25$29.31$41.26266,000
2000-10-24$28.38$39.94291,200
2000-10-23$27.50$38.71343,400
2000-10-20$27.31$38.45342,600
2000-10-19$26.66$37.52222,400
2000-10-18$25.94$36.51353,400
2000-10-17$25.50$35.90274,000
2000-10-16$26.00$36.60323,200
2000-10-13$26.41$37.17270,200
2000-10-12$26.84$37.79204,800
2000-10-11$28.19$39.68184,800
2000-10-10$27.50$38.71218,000
2000-10-09$27.22$38.32169,200
2000-10-06$27.44$38.62241,400
2000-10-05$28.91$40.69268,200
2000-10-04$29.03$40.87153,000
2000-10-03$29.19$41.09121,400
2000-10-02$29.03$40.87233,200
2000-09-29$29.56$41.62497,000
2000-09-28$29.84$42.01429,600
2000-09-27$28.56$40.21148,000
2000-09-26$28.31$39.6975,000
2000-09-25$28.44$39.87274,400
2000-09-22$28.34$39.74431,400
2000-09-21$26.63$37.3384,800
2000-09-20$27.72$38.86204,200
2000-09-19$27.41$38.42123,800
2000-09-18$26.13$36.63223,000
2000-09-15$27.75$38.91249,600
2000-09-14$27.00$37.85181,400
2000-09-13$27.03$37.90244,800
2000-09-12$28.03$39.30287,400
2000-09-11$27.16$38.07332,600
2000-09-08$26.88$37.68494,200
2000-09-07$24.84$34.83184,000
2000-09-06$25.03$35.09266,200
2000-09-05$24.13$33.82106,400
2000-09-01$24.00$33.65110,400
2000-08-31$24.50$34.35125,000
2000-08-30$24.06$33.7467,200
2000-08-29$23.41$32.82125,600
2000-08-28$23.47$32.9099,000
2000-08-25$23.81$33.38339,600
2000-08-24$23.05$32.31379,200
2000-08-23$22.59$31.68288,800
2000-08-22$22.47$31.50109,000
2000-08-21$22.56$31.63386,200
2000-08-18$23.31$32.6855,200
2000-08-17$23.50$32.95178,200
2000-08-16$23.47$32.90186,000
2000-08-15$23.69$33.21205,000
2000-08-14$24.22$33.95150,400
2000-08-11$24.44$34.26146,600
2000-08-10$24.50$34.35121,800
2000-08-09$24.84$34.83125,600
2000-08-08$24.56$34.44100,600
2000-08-07$24.50$34.35140,600
2000-08-04$24.81$34.79322,400
2000-08-03$24.78$34.74273,200
2000-08-02$24.81$34.79279,200
2000-08-01$24.50$34.35144,600
2000-07-31$24.53$34.39719,000
2000-07-28$24.47$34.31612,200
2000-07-27$23.50$32.95859,400
2000-07-26$22.97$32.20486,800
2000-07-25$22.44$31.46708,000
2000-07-24$22.09$30.98106,800
2000-07-21$22.00$30.84374,800
2000-07-20$21.47$30.10216,400
2000-07-19$21.94$30.76483,600
2000-07-18$20.75$29.09297,000
2000-07-17$20.38$28.57186,800
2000-07-14$20.31$28.4871,800
2000-07-13$20.34$28.5257,000
2000-07-12$20.50$28.74150,200
2000-07-11$20.44$28.6586,000
2000-07-10$20.47$28.70184,800
2000-07-07$20.44$28.65374,400
2000-07-06$20.75$29.09423,200
2000-07-05$20.38$28.57250,000
2000-07-03$21.00$29.4493,600
2000-06-30$21.00$29.44745,800
2000-06-29$21.50$30.14384,600
2000-06-28$20.66$28.96552,200
2000-06-27$19.66$27.40150,000
2000-06-26$19.19$26.7490,200
2000-06-23$19.56$27.27320,400
2000-06-22$18.69$26.05105,200
2000-06-21$18.50$25.79185,200
2000-06-20$19.50$27.18691,600
2000-06-19$19.19$26.74226,600
2000-06-16$18.91$26.35122,400
2000-06-15$19.13$26.66135,400
2000-06-14$19.38$27.00191,800
2000-06-13$19.00$26.48234,600
2000-06-12$18.25$25.44185,600
2000-06-09$19.19$26.7497,600
2000-06-08$18.69$26.05349,000
2000-06-07$19.66$27.40123,200
2000-06-06$18.84$26.26173,200
2000-06-05$18.94$26.39180,000
2000-06-02$19.66$27.40210,400
2000-06-01$18.97$26.44200,000
2000-05-31$19.34$26.96149,400
2000-05-30$19.47$27.14403,800
2000-05-26$19.53$27.22162,400
2000-05-25$19.25$26.831,073,400
2000-05-24$18.97$26.44369,800
2000-05-23$19.03$26.53228,600
2000-05-22$19.59$27.31176,400
2000-05-19$19.00$26.48375,200
2000-05-18$19.44$27.09278,800
2000-05-17$18.63$25.96116,600
2000-05-16$18.88$26.31256,200
2000-05-15$19.16$26.70206,800
2000-05-12$18.09$25.22331,000
2000-05-11$18.00$25.09188,200
2000-05-10$17.84$24.87158,200
2000-05-09$17.88$24.91346,200
2000-05-08$17.81$24.83209,800
2000-05-05$18.00$25.09180,800
2000-05-04$17.75$24.74137,600
2000-05-03$17.44$24.30456,200
2000-05-02$17.50$24.39370,000
2000-05-01$17.81$24.83548,800
2000-04-28$18.63$25.96243,600
2000-04-27$17.31$24.13344,800
2000-04-26$17.53$24.43456,800
2000-04-25$18.16$25.31406,400
2000-04-24$16.47$22.95156,400
2000-04-20$16.47$22.95340,200
2000-04-19$16.31$22.74260,800
2000-04-18$16.41$22.87248,400
2000-04-17$15.59$21.73760,600
2000-04-14$16.13$22.47560,000
2000-04-13$16.41$22.87132,600
2000-04-12$16.38$22.82109,400
2000-04-11$16.31$22.7475,600
2000-04-10$16.34$22.78456,600
2000-04-07$16.47$22.95245,400
2000-04-06$16.41$22.87324,200
2000-04-05$16.38$22.82716,000
2000-04-04$15.97$22.26148,800
2000-04-03$16.38$22.82198,600
2000-03-31$16.25$22.651,202,600
2000-03-30$15.97$22.26992,200
2000-03-29$14.97$20.86689,600
2000-03-28$15.00$20.75530,000
2000-03-27$15.03$20.79179,200
2000-03-24$15.25$21.09214,600
2000-03-23$15.16$20.96547,200
2000-03-22$15.00$20.75774,200
2000-03-21$14.41$19.93234,800
2000-03-20$14.59$20.18392,800
2000-03-17$15.25$21.091,178,000
2000-03-16$16.00$22.13422,400
2000-03-15$13.31$18.41453,200
2000-03-14$12.44$17.20575,200
2000-03-13$12.23$16.9299,200
2000-03-10$11.92$16.49213,600
2000-03-09$11.86$16.40293,600
2000-03-08$11.75$16.25120,800
2000-03-07$11.84$16.3874,000
2000-03-06$11.75$16.25228,800
2000-03-03$12.50$17.29194,000
2000-03-02$12.77$17.66146,800
2000-03-01$12.56$17.38153,200
2000-02-29$12.78$17.68194,800
2000-02-28$12.58$17.40166,000
2000-02-25$12.20$16.8894,800
2000-02-24$12.45$17.22113,600
2000-02-23$12.50$17.29185,600
2000-02-22$12.17$16.83454,400
2000-02-18$12.42$17.18148,800
2000-02-17$12.92$17.87118,800
2000-02-16$13.23$18.3085,200
2000-02-15$13.19$18.24114,400
2000-02-14$13.36$18.48210,800
2000-02-11$13.56$18.76130,400
2000-02-10$14.13$19.54282,800
2000-02-09$14.03$19.41154,400
2000-02-08$13.92$19.26226,800
2000-02-07$14.00$19.36113,200
2000-02-04$14.67$20.29143,600
2000-02-03$14.72$20.36538,000
2000-02-02$13.70$18.95134,000
2000-02-01$13.64$18.87138,000
2000-01-31$13.44$18.59161,600
2000-01-28$13.52$18.69144,800
2000-01-27$13.84$19.15233,600
2000-01-26$14.23$19.69162,400
2000-01-25$13.94$19.28196,400
2000-01-24$14.14$19.56410,800
2000-01-21$14.28$19.75260,800
2000-01-20$14.98$20.72177,200
2000-01-19$15.00$20.75238,400
2000-01-18$15.02$20.77199,600
2000-01-14$14.91$20.62157,200
2000-01-13$14.98$20.72136,400
2000-01-12$15.02$20.7772,800
2000-01-11$15.14$20.94136,800
2000-01-10$15.23$21.07212,000
2000-01-07$15.81$21.87235,600
2000-01-06$15.22$21.05214,800
2000-01-05$15.25$21.09177,600
2000-01-04$15.19$21.01140,400
2000-01-03$15.91$22.00258,400