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.

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Historical Stock Price — 2009

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2009-12-31$67.35$67.35399,800
2009-12-30$67.26$67.26215,100
2009-12-29$67.46$67.46231,100
2009-12-28$68.07$68.07305,700
2009-12-24$68.99$68.9974,700
2009-12-23$68.88$68.88219,100
2009-12-22$68.45$68.45300,500
2009-12-21$67.70$67.70441,600
2009-12-18$66.70$66.70567,800
2009-12-17$65.95$65.95450,900
2009-12-16$66.08$66.08489,300
2009-12-15$64.63$64.63356,800
2009-12-14$64.73$64.73479,400
2009-12-11$64.93$64.93341,800
2009-12-10$65.07$65.07633,900
2009-12-09$63.51$63.51445,000
2009-12-08$64.25$64.25509,300
2009-12-07$63.96$63.96564,700
2009-12-04$64.78$64.78478,800
2009-12-03$64.23$64.23375,700
2009-12-02$65.51$65.51403,700
2009-12-01$65.45$65.45509,600
2009-11-30$65.21$65.21628,500
2009-11-27$64.24$64.24252,300
2009-11-25$67.43$67.43358,600
2009-11-24$67.40$67.40353,000
2009-11-23$68.14$68.14432,800
2009-11-20$67.01$67.01475,100
2009-11-19$67.24$67.24679,900
2009-11-18$69.52$69.52582,700
2009-11-17$69.59$69.59540,900
2009-11-16$70.66$70.66619,500
2009-11-13$69.72$69.72504,500
2009-11-12$69.98$69.98387,400
2009-11-11$70.85$70.851,110,500
2009-11-10$69.34$69.34624,500
2009-11-09$68.36$68.36701,800
2009-11-06$66.12$66.12400,200
2009-11-05$65.47$65.47543,600
2009-11-04$62.94$62.94425,000
2009-11-03$63.40$63.40814,000
2009-11-02$64.73$64.73421,100
2009-10-30$63.49$63.49977,000
2009-10-29$66.34$66.34569,400
2009-10-28$62.48$62.48988,100
2009-10-27$64.94$64.94868,100
2009-10-26$65.43$65.43609,300
2009-10-23$67.33$67.33489,500
2009-10-22$68.57$68.57699,700
2009-10-21$69.66$69.66385,000
2009-10-20$71.46$71.46326,800
2009-10-19$72.96$72.96253,900
2009-10-16$72.61$72.61452,700
2009-10-15$73.28$73.28525,000
2009-10-14$73.23$73.23764,700
2009-10-13$67.91$67.91243,600
2009-10-12$68.84$68.84348,100
2009-10-09$68.89$68.89323,900
2009-10-08$66.99$66.99397,500
2009-10-07$65.73$65.73342,900
2009-10-06$65.18$65.18382,500
2009-10-05$64.23$64.23450,700
2009-10-02$61.27$61.27334,300
2009-10-01$62.00$62.00546,300
2009-09-30$65.01$65.01627,200
2009-09-29$63.94$63.94607,500
2009-09-28$63.31$63.31602,300
2009-09-25$60.22$60.22912,600
2009-09-24$63.32$63.321,345,800
2009-09-23$66.52$66.522,871,300
2009-09-22$67.45$67.45564,100
2009-09-21$67.38$67.38368,300
2009-09-18$68.87$68.87432,000
2009-09-17$67.70$67.70464,000
2009-09-16$67.60$67.60660,200
2009-09-15$67.03$67.03619,500
2009-09-14$66.65$66.65562,800
2009-09-11$66.47$66.47420,600
2009-09-10$67.87$67.87325,100
2009-09-09$67.82$67.82358,100
2009-09-08$67.02$67.02663,300
2009-09-04$65.27$65.27614,100
2009-09-03$63.61$63.61528,000
2009-09-02$61.76$61.76434,900
2009-09-01$61.71$61.71713,200
2009-08-31$65.33$65.33436,500
2009-08-28$65.75$65.75594,100
2009-08-27$65.30$65.30375,800
2009-08-26$65.21$65.211,120,100
2009-08-25$62.67$62.67646,400
2009-08-24$61.87$61.87661,600
2009-08-21$63.80$63.80617,600
2009-08-20$63.89$63.89438,500
2009-08-19$62.61$62.61412,900
2009-08-18$63.13$63.13406,000
2009-08-17$61.79$61.79727,100
2009-08-14$65.73$65.73341,800
2009-08-13$68.13$68.13428,300
2009-08-12$67.68$67.68753,800
2009-08-11$65.88$65.88374,600
2009-08-10$67.31$67.31316,100
2009-08-07$68.98$68.98533,200
2009-08-06$68.20$68.20637,400
2009-08-05$69.87$69.87574,800
2009-08-04$68.51$68.51874,500
2009-08-03$67.99$67.99955,300
2009-07-31$66.02$66.02970,200
2009-07-30$66.46$66.46995,000
2009-07-29$62.89$62.89797,400
2009-07-28$62.71$62.71472,200
2009-07-27$63.43$63.43587,700
2009-07-24$63.60$63.60305,600
2009-07-23$64.44$64.44452,500
2009-07-22$62.52$62.52372,800
2009-07-21$62.04$62.04914,700
2009-07-20$61.56$61.56727,400
2009-07-17$59.10$59.10541,800
2009-07-16$58.39$58.39489,100
2009-07-15$58.48$58.48843,000
2009-07-14$56.24$56.24486,300
2009-07-13$55.03$55.03754,300
2009-07-10$52.67$52.67413,500
2009-07-09$53.36$53.36741,300
2009-07-08$53.29$53.291,154,900
2009-07-07$55.48$55.481,219,500
2009-07-06$57.59$57.59631,700
2009-07-02$57.95$57.95713,100
2009-07-01$58.85$58.85562,900
2009-06-30$58.19$58.19627,200
2009-06-29$58.24$58.24474,300
2009-06-26$58.00$58.00713,500
2009-06-25$55.69$55.69571,700
2009-06-24$55.34$55.34569,800
2009-06-23$54.25$54.25612,100
2009-06-22$53.78$53.78785,100
2009-06-19$58.73$58.73827,100
2009-06-18$58.22$58.22495,700
2009-06-17$56.86$56.86848,900
2009-06-16$58.03$58.03599,000
2009-06-15$59.24$59.24924,200
2009-06-12$58.50$58.50620,900
2009-06-11$57.86$57.861,203,100
2009-06-10$59.24$59.24834,200
2009-06-09$58.61$58.611,080,900
2009-06-08$58.21$58.21779,000
2009-06-05$59.31$59.31680,300
2009-06-04$60.54$60.54967,700
2009-06-03$59.56$59.56899,400
2009-06-02$60.30$60.30750,700
2009-06-01$59.81$59.811,162,400
2009-05-29$56.11$56.11823,400
2009-05-28$55.44$55.44604,200
2009-05-27$54.35$54.351,214,700
2009-05-26$56.60$56.601,039,200
2009-05-22$53.16$53.16580,200
2009-05-21$54.02$54.02644,800
2009-05-20$54.23$54.23941,700
2009-05-19$55.31$55.31946,700
2009-05-18$58.32$58.321,427,400
2009-05-15$53.73$53.73879,800
2009-05-14$54.87$54.871,182,000
2009-05-13$52.09$52.09973,200
2009-05-12$56.78$56.78981,100
2009-05-11$56.77$56.771,039,800
2009-05-08$59.51$59.511,543,400
2009-05-07$56.91$56.911,632,700
2009-05-06$61.10$61.101,473,500
2009-05-05$59.22$59.221,199,700
2009-05-04$60.82$60.821,238,400
2009-05-01$56.02$56.021,064,900
2009-04-30$56.85$56.852,128,900
2009-04-29$55.21$55.212,899,800
2009-04-28$44.68$44.681,183,000
2009-04-27$47.15$47.15698,900
2009-04-24$49.24$49.24672,900
2009-04-23$48.53$48.53861,300
2009-04-22$47.15$47.15918,300
2009-04-21$47.35$47.35960,200
2009-04-20$44.08$44.081,182,800
2009-04-17$50.17$50.17818,100
2009-04-16$49.74$49.74862,000
2009-04-15$50.69$50.69584,100
2009-04-14$47.82$47.821,136,900
2009-04-13$51.46$51.461,062,400
2009-04-09$50.69$50.691,427,800
2009-04-08$44.55$44.551,068,500
2009-04-07$42.53$42.53652,600
2009-04-06$45.80$45.80530,200
2009-04-03$46.37$46.371,552,800
2009-04-02$45.53$45.531,437,700
2009-04-01$42.59$42.59900,900
2009-03-31$41.71$41.71995,600
2009-03-30$39.30$39.301,576,900
2009-03-27$44.25$44.251,104,200
2009-03-26$47.09$47.09975,000
2009-03-25$45.06$45.061,586,200
2009-03-24$43.88$43.881,347,800
2009-03-23$46.88$46.881,485,900
2009-03-20$40.42$40.42984,100
2009-03-19$42.30$42.301,629,500
2009-03-18$43.27$43.271,619,600
2009-03-17$40.75$40.751,176,000
2009-03-16$39.49$39.491,538,500
2009-03-13$41.29$41.291,068,500
2009-03-12$40.34$40.341,255,900
2009-03-11$37.17$37.171,837,600
2009-03-10$33.72$33.721,612,200
2009-03-09$29.19$29.191,090,000
2009-03-06$29.66$29.661,523,600
2009-03-05$31.26$31.261,137,000
2009-03-04$35.05$35.052,467,800
2009-03-03$32.38$32.381,622,600
2009-03-02$33.71$33.711,546,700
2009-02-27$35.98$35.981,430,000
2009-02-26$38.15$38.151,390,800
2009-02-25$38.30$38.301,314,800
2009-02-24$40.51$40.511,585,000
2009-02-23$36.53$36.531,365,300
2009-02-20$40.01$40.012,031,600
2009-02-19$39.30$39.301,644,100
2009-02-18$41.66$41.661,499,100
2009-02-17$41.51$41.511,448,400
2009-02-13$44.75$44.751,308,100
2009-02-12$46.79$46.791,238,700
2009-02-11$46.41$46.41991,100
2009-02-10$44.71$44.712,170,300
2009-02-09$48.12$48.121,267,700
2009-02-06$48.53$48.531,662,400
2009-02-05$46.70$46.702,994,100
2009-02-04$42.53$42.53998,300
2009-02-03$42.29$42.29925,200
2009-02-02$41.27$41.271,021,700
2009-01-30$40.19$40.191,263,900
2009-01-29$41.45$41.451,347,200
2009-01-28$44.00$44.001,733,900
2009-01-27$39.40$39.40414,400
2009-01-26$38.18$38.18571,800
2009-01-23$38.45$38.451,122,700
2009-01-22$36.16$36.161,175,500
2009-01-21$39.25$39.251,554,100
2009-01-20$34.55$34.551,293,400
2009-01-16$39.26$39.261,268,500
2009-01-15$36.58$36.581,102,100
2009-01-14$36.85$36.851,280,000
2009-01-13$39.63$39.631,426,200
2009-01-12$39.93$39.931,048,500
2009-01-09$45.11$45.11993,200
2009-01-08$46.54$46.541,055,400
2009-01-07$44.50$44.501,668,600
2009-01-06$46.90$46.901,427,200
2009-01-05$44.00$44.00991,400
2009-01-02$43.44$43.44536,500