NYSE:AMG | Historical Stock Price | AFFILIATED MANAGERS GROUP, 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
1997-11-21 to 2026-09-04
Data captured

Stock Price Chart

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

$9.50$20.20$42.96$91.36$194.27$413.131997-11-212026-08-27

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

View year

Historical Stock Price — 1999

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1999-12-31$26.96$26.96130,950
1999-12-30$24.96$24.96224,550
1999-12-29$24.63$24.63117,750
1999-12-28$23.75$23.75146,100
1999-12-27$24.00$24.0065,850
1999-12-23$23.29$23.29110,700
1999-12-22$23.33$23.3360,000
1999-12-21$23.00$23.0031,350
1999-12-20$22.67$22.6745,000
1999-12-17$22.67$22.67188,400
1999-12-16$22.54$22.54186,600
1999-12-15$21.92$21.92167,700
1999-12-14$23.50$23.50228,750
1999-12-13$22.67$22.67183,600
1999-12-10$21.21$21.21169,500
1999-12-09$20.04$20.0498,400
1999-12-08$20.08$20.0814,550
1999-12-07$20.13$20.13139,500
1999-12-06$19.96$19.9694,200
1999-12-03$20.00$20.0053,550
1999-12-02$19.33$19.3355,500
1999-12-01$19.42$19.4224,750
1999-11-30$19.83$19.8322,050
1999-11-29$20.17$20.1737,050
1999-11-26$20.33$20.3310,950
1999-11-24$20.33$20.3389,850
1999-11-23$20.88$20.87186,450
1999-11-22$21.17$21.1713,050
1999-11-19$21.42$21.42102,450
1999-11-18$21.50$21.5077,400
1999-11-17$20.83$20.83134,100
1999-11-16$19.92$19.92341,850
1999-11-15$20.54$20.54132,000
1999-11-12$19.83$19.838,550
1999-11-11$19.29$19.2919,950
1999-11-10$19.04$19.0462,100
1999-11-09$18.63$18.62158,400
1999-11-08$18.67$18.67147,000
1999-11-05$19.08$19.0891,650
1999-11-04$18.21$18.2122,200
1999-11-03$18.08$18.0842,000
1999-11-02$18.00$18.0026,400
1999-11-01$18.17$18.17220,500
1999-10-29$17.83$17.83451,200
1999-10-28$16.67$16.67292,050
1999-10-27$16.29$16.2989,850
1999-10-26$16.00$16.00301,950
1999-10-25$15.96$15.96103,050
1999-10-22$15.75$15.75170,400
1999-10-21$15.75$15.75533,700
1999-10-20$15.54$15.54114,450
1999-10-19$15.33$15.33203,250
1999-10-18$16.13$16.1324,000
1999-10-15$16.33$16.3363,450
1999-10-14$16.83$16.8337,500
1999-10-13$17.08$17.0894,200
1999-10-12$17.33$17.3390,150
1999-10-11$17.46$17.4633,750
1999-10-08$17.42$17.4243,500
1999-10-07$17.33$17.3364,650
1999-10-06$17.21$17.2159,400
1999-10-05$17.50$17.5053,700
1999-10-04$17.63$17.6312,900
1999-10-01$17.71$17.7183,400
1999-09-30$18.17$18.17267,600
1999-09-29$17.50$17.5081,450
1999-09-28$17.63$17.6377,400
1999-09-27$17.67$17.67121,200
1999-09-24$17.75$17.7537,200
1999-09-23$17.67$17.6740,200
1999-09-22$17.42$17.4249,050
1999-09-21$17.33$17.33194,550
1999-09-20$16.58$16.5849,350
1999-09-17$17.00$17.0043,800
1999-09-16$16.96$16.9663,750
1999-09-15$17.63$17.6319,950
1999-09-14$17.71$17.7197,800
1999-09-13$17.58$17.58244,050
1999-09-10$17.50$17.50138,150
1999-09-09$17.38$17.38312,450
1999-09-08$18.13$18.13114,750
1999-09-07$18.00$18.0019,800
1999-09-03$18.00$18.0070,650
1999-09-02$17.83$17.8326,550
1999-09-01$17.79$17.7922,800
1999-08-31$17.79$17.7943,050
1999-08-30$17.88$17.8784,600
1999-08-27$18.08$18.0831,800
1999-08-26$18.21$18.21130,350
1999-08-25$18.08$18.0855,350
1999-08-24$17.83$17.8379,650
1999-08-23$18.13$18.1355,200
1999-08-20$17.71$17.7124,150
1999-08-19$18.21$18.2184,750
1999-08-18$17.96$17.9694,200
1999-08-17$18.38$18.3852,800
1999-08-16$18.75$18.7523,850
1999-08-13$19.00$19.0058,350
1999-08-12$19.00$19.0065,400
1999-08-11$18.88$18.8834,050
1999-08-10$18.92$18.9257,900
1999-08-09$18.92$18.9220,850
1999-08-06$19.04$19.0456,850
1999-08-05$19.29$19.2926,250
1999-08-04$19.29$19.2935,250
1999-08-03$19.79$19.7991,200
1999-08-02$20.04$20.0445,000
1999-07-30$19.58$19.5832,100
1999-07-29$19.29$19.29108,300
1999-07-28$19.67$19.6716,200
1999-07-27$19.50$19.5070,650
1999-07-26$19.46$19.4615,450
1999-07-23$19.42$19.4286,700
1999-07-22$19.67$19.6776,500
1999-07-21$19.67$19.67213,750
1999-07-20$19.13$19.1345,450
1999-07-19$19.25$19.25129,600
1999-07-16$19.58$19.58220,350
1999-07-15$19.08$19.08102,150
1999-07-14$19.67$19.67107,700
1999-07-13$19.92$19.9241,400
1999-07-12$20.04$20.0436,150
1999-07-09$20.33$20.3343,050
1999-07-08$20.42$20.4225,500
1999-07-07$20.71$20.7136,750
1999-07-06$20.92$20.92120,900
1999-07-02$20.67$20.67155,400
1999-07-01$20.54$20.5492,400
1999-06-30$20.13$20.13426,900
1999-06-29$19.46$19.46314,100
1999-06-28$19.25$19.2553,400
1999-06-25$19.33$19.3379,200
1999-06-24$19.29$19.2957,600
1999-06-23$19.08$19.0837,800
1999-06-22$19.17$19.17143,700
1999-06-21$19.25$19.2544,850
1999-06-18$19.29$19.2967,200
1999-06-17$19.42$19.4292,250
1999-06-16$19.46$19.4669,600
1999-06-15$19.29$19.2937,950
1999-06-14$18.83$18.8337,950
1999-06-11$18.83$18.83122,850
1999-06-10$18.67$18.6759,250
1999-06-09$19.33$19.3384,300
1999-06-08$19.46$19.4694,800
1999-06-07$19.33$19.3311,100
1999-06-04$19.21$19.2121,150
1999-06-03$19.00$19.0037,050
1999-06-02$19.00$19.0027,150
1999-06-01$19.58$19.5857,150
1999-05-28$19.50$19.5018,450
1999-05-27$19.50$19.5029,250
1999-05-26$19.88$19.8865,100
1999-05-25$20.00$20.0081,300
1999-05-24$20.13$20.1330,450
1999-05-21$20.75$20.7533,900
1999-05-20$20.96$20.9654,450
1999-05-19$20.00$20.0068,400
1999-05-18$20.00$20.0054,300
1999-05-17$20.21$20.2122,050
1999-05-14$20.46$20.4657,600
1999-05-13$21.17$21.1792,550
1999-05-12$20.92$20.9229,850
1999-05-11$21.33$21.3358,950
1999-05-10$21.25$21.25294,000
1999-05-07$20.17$20.1733,600
1999-05-06$19.83$19.8388,050
1999-05-05$20.17$20.1791,200
1999-05-04$19.13$19.1376,800
1999-05-03$18.79$18.7930,750
1999-04-30$19.38$19.3855,650
1999-04-29$19.67$19.6784,600
1999-04-28$20.00$20.0029,850
1999-04-27$20.33$20.3345,150
1999-04-26$20.63$20.63253,650
1999-04-23$20.88$20.87129,900
1999-04-22$21.50$21.50160,500
1999-04-21$19.04$19.04201,150
1999-04-20$18.75$18.7560,000
1999-04-19$18.63$18.62186,450
1999-04-16$18.08$18.08126,750
1999-04-15$18.04$18.04124,650
1999-04-14$18.00$18.00218,250
1999-04-13$17.92$17.92200,850
1999-04-12$18.00$18.00267,150
1999-04-09$17.17$17.17420,600
1999-04-08$16.67$16.67138,300
1999-04-07$17.17$17.1775,450
1999-04-06$17.33$17.33394,950
1999-04-05$16.83$16.8382,350
1999-04-01$16.96$16.9641,250
1999-03-31$17.33$17.33147,450
1999-03-30$16.79$16.79114,750
1999-03-29$16.88$16.8848,000
1999-03-26$16.42$16.4259,550
1999-03-25$16.38$16.3897,200
1999-03-24$16.00$16.0089,250
1999-03-23$16.17$16.17196,350
1999-03-22$17.17$17.1777,250
1999-03-19$17.21$17.2165,700
1999-03-18$17.13$17.13206,400
1999-03-17$16.96$16.96120,600
1999-03-16$16.96$16.96155,550
1999-03-15$17.71$17.7182,650
1999-03-12$17.75$17.7595,400
1999-03-11$17.96$17.96152,250
1999-03-10$17.13$17.13127,650
1999-03-09$17.83$17.83238,200
1999-03-08$17.50$17.50278,850
1999-03-05$17.42$17.42583,500
1999-03-04$16.67$16.67235,500
1999-03-03$16.58$16.58354,000
1999-03-02$16.96$16.96352,950
1999-03-01$16.96$16.96400,350
1999-02-26$17.33$17.334,855,950
1999-02-25$18.08$18.0852,500
1999-02-24$18.50$18.5052,800
1999-02-23$18.54$18.54104,550
1999-02-22$17.75$17.7549,350
1999-02-19$18.13$18.1332,550
1999-02-18$18.42$18.4293,150
1999-02-17$18.46$18.4684,750
1999-02-16$17.92$17.92110,850
1999-02-12$18.67$18.6729,400
1999-02-11$19.29$19.2958,800
1999-02-10$18.46$18.4647,700
1999-02-09$19.25$19.2548,750
1999-02-08$19.50$19.50136,500
1999-02-05$19.29$19.2937,800
1999-02-04$19.92$19.9233,150
1999-02-03$20.33$20.3336,450
1999-02-02$20.13$20.13133,800
1999-02-01$21.46$21.4618,900
1999-01-29$22.04$22.0490,900
1999-01-28$21.75$21.75273,750
1999-01-27$20.75$20.75233,400
1999-01-26$20.79$20.7942,300
1999-01-25$21.38$21.38124,950
1999-01-22$21.63$21.6362,700
1999-01-21$21.42$21.4276,800
1999-01-20$22.00$22.00167,850
1999-01-19$21.67$21.6753,700
1999-01-15$21.33$21.3375,750
1999-01-14$19.54$19.54160,500
1999-01-13$17.79$17.7962,100
1999-01-12$18.42$18.42124,950
1999-01-11$19.75$19.7546,500
1999-01-08$19.88$19.88122,400
1999-01-07$19.71$19.71154,500
1999-01-06$19.29$19.2930,300
1999-01-05$19.67$19.67135,450
1999-01-04$19.63$19.6370,200