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 — 2018

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2018-12-31$97.44$98.69569,600——
2018-12-28$96.01$97.24466,500——
2018-12-27$97.15$98.39812,000——
2018-12-26$95.06$96.27791,100——
2018-12-24$90.24$91.39241,000——
2018-12-21$92.42$93.601,558,700——
2018-12-20$93.34$94.53823,000——
2018-12-19$92.20$93.38704,900——
2018-12-18$95.72$96.941,068,400——
2018-12-17$95.46$96.681,240,600——
2018-12-14$95.51$96.731,685,900——
2018-12-13$98.36$99.621,192,100——
2018-12-12$101.89$103.19605,800——
2018-12-11$99.42$100.69819,400——
2018-12-10$100.48$101.76653,600——
2018-12-07$103.04$104.361,061,400——
2018-12-06$106.56$107.921,035,200——
2018-12-04$105.15$106.49735,200——
2018-12-03$111.31$112.73468,000——
2018-11-30$111.12$112.54482,900——
2018-11-29$111.58$113.01436,800——
2018-11-28$113.79$115.24579,000——
2018-11-27$110.51$111.92528,500——
2018-11-26$112.48$113.92574,900——
2018-11-23$109.28$110.68160,600——
2018-11-21$109.37$110.77442,100——
2018-11-20$106.55$107.91587,600——
2018-11-19$110.10$111.51556,900——
2018-11-16$113.36$114.81673,800——
2018-11-15$113.29$114.74649,900——
2018-11-14$111.07$112.49507,000——
2018-11-13$111.38$112.80400,500——
2018-11-12$112.55$113.99368,100——
2018-11-09$115.24$116.71400,900——
2018-11-08$117.00$118.49378,000——
2018-11-07$117.66$119.16493,500——
2018-11-06$115.66$116.83380,900——
2018-11-05$114.78$115.95698,900——
2018-11-02$116.83$118.02610,200——
2018-11-01$118.26$119.46473,700——
2018-10-31$113.66$114.81559,600——
2018-10-30$115.17$116.34997,700——
2018-10-29$111.42$112.551,342,600——
2018-10-26$115.53$116.70641,900——
2018-10-25$118.38$119.58499,400——
2018-10-24$115.90$117.081,100,500——
2018-10-23$117.99$119.19740,300——
2018-10-22$119.85$121.07576,300——
2018-10-19$123.31$124.56549,600——
2018-10-18$123.69$124.95498,800——
2018-10-17$127.30$128.59504,900——
2018-10-16$125.94$127.22420,100——
2018-10-15$124.67$125.94422,900——
2018-10-12$124.04$125.30667,300——
2018-10-11$123.19$124.441,016,000——
2018-10-10$127.25$128.54756,600——
2018-10-09$131.27$132.60462,300——
2018-10-08$133.55$134.91671,500——
2018-10-05$134.68$136.05588,900——
2018-10-04$137.20$138.59433,000——
2018-10-03$138.00$139.40631,900——
2018-10-02$136.89$138.28610,800——
2018-10-01$137.17$138.56535,700——
2018-09-28$136.72$138.11503,600——
2018-09-27$138.20$139.60400,300——
2018-09-26$139.09$140.50489,900——
2018-09-25$140.51$141.94317,100——
2018-09-24$144.00$145.46338,200——
2018-09-21$147.63$149.13675,700——
2018-09-20$146.01$147.49241,200——
2018-09-19$145.64$147.12286,000——
2018-09-18$142.08$143.52330,300——
2018-09-17$142.05$143.49311,000——
2018-09-14$142.96$144.41312,600——
2018-09-13$140.70$142.13230,700——
2018-09-12$142.15$143.59322,800——
2018-09-11$142.96$144.41365,900——
2018-09-10$143.06$144.51291,400——
2018-09-07$142.71$144.16501,000——
2018-09-06$143.84$145.30511,400——
2018-09-05$144.63$146.10361,300——
2018-09-04$144.85$146.32474,800——
2018-08-31$146.09$147.57443,900——
2018-08-30$146.00$147.48434,900——
2018-08-29$148.06$149.56413,700——
2018-08-28$146.95$148.44794,500——
2018-08-27$148.18$149.68291,800——
2018-08-24$147.55$149.05329,600——
2018-08-23$146.49$147.98323,100——
2018-08-22$148.61$150.12253,100——
2018-08-21$148.87$150.38364,100——
2018-08-20$147.99$149.49385,600——
2018-08-17$146.59$148.08372,400——
2018-08-16$146.29$147.77387,200——
2018-08-15$145.43$146.91946,400——
2018-08-14$146.63$148.12478,300——
2018-08-13$146.40$147.89427,900——
2018-08-10$148.16$149.66406,000——
2018-08-09$151.19$152.72378,500——
2018-08-08$151.71$153.25628,300——
2018-08-07$155.52$156.80652,100——
2018-08-06$153.50$154.76644,800——
2018-08-03$152.06$153.311,436,500——
2018-08-02$155.65$156.931,019,500——
2018-08-01$155.50$156.78927,300——
2018-07-31$160.01$161.32855,400——
2018-07-30$158.72$160.02999,400——
2018-07-27$151.05$152.29446,200——
2018-07-26$151.71$152.95338,600——
2018-07-25$150.91$152.15327,800——
2018-07-24$151.68$152.92560,400——
2018-07-23$150.11$151.34436,500——
2018-07-20$148.84$150.06323,500——
2018-07-19$149.31$150.53309,600——
2018-07-18$151.25$152.49392,400——
2018-07-17$148.49$149.71250,800——
2018-07-16$148.62$149.84547,200——
2018-07-13$148.48$149.70366,700——
2018-07-12$149.16$150.38345,300——
2018-07-11$150.32$151.55342,900——
2018-07-10$152.43$153.68426,100——
2018-07-09$150.90$152.14413,600——
2018-07-06$148.06$149.27635,200——
2018-07-05$148.02$149.23328,800——
2018-07-03$147.23$148.44183,600——
2018-07-02$148.90$150.12441,200——
2018-06-29$148.67$149.89540,900——
2018-06-28$151.43$152.67611,200——
2018-06-27$149.80$151.03496,500——
2018-06-26$151.72$152.96720,500——
2018-06-25$153.57$154.83871,800——
2018-06-22$154.62$155.89603,000——
2018-06-21$153.43$154.69549,700——
2018-06-20$152.73$153.98520,600——
2018-06-19$154.00$155.26863,300——
2018-06-18$153.00$154.25667,000——
2018-06-15$155.81$157.09740,900——
2018-06-14$155.51$156.79563,400——
2018-06-13$156.00$157.28920,000——
2018-06-12$162.18$163.51330,700——
2018-06-11$163.76$165.10233,700——
2018-06-08$165.05$166.40488,700——
2018-06-07$165.17$166.52409,300——
2018-06-06$166.90$168.27526,100——
2018-06-05$163.32$164.66415,300——
2018-06-04$162.28$163.61316,300——
2018-06-01$161.23$162.55271,700——
2018-05-31$159.26$160.57367,300——
2018-05-30$160.86$162.18538,200——
2018-05-29$157.23$158.52580,300——
2018-05-25$163.33$164.67537,800——
2018-05-24$163.96$165.30201,000——
2018-05-23$164.96$166.31274,700——
2018-05-22$167.43$168.80323,700——
2018-05-21$166.82$168.19307,000——
2018-05-18$167.71$169.09230,600——
2018-05-17$169.25$170.64398,000——
2018-05-16$167.33$168.70224,600——
2018-05-15$166.56$167.93345,500——
2018-05-14$165.86$167.22340,300——
2018-05-11$164.76$166.11177,000——
2018-05-10$164.70$166.05224,300——
2018-05-09$163.53$164.87251,700——
2018-05-08$163.28$164.32414,500——
2018-05-07$162.45$163.48306,200——
2018-05-04$161.72$162.75329,000——
2018-05-03$160.07$161.09525,400——
2018-05-02$161.09$162.11958,700——
2018-05-01$164.13$165.17541,700——
2018-04-30$164.86$165.91993,900——
2018-04-27$170.00$171.08571,800——
2018-04-26$170.08$171.16410,200——
2018-04-25$168.99$170.06394,200——
2018-04-24$168.96$170.03383,000——
2018-04-23$170.82$171.90274,000——
2018-04-20$171.38$172.47496,500——
2018-04-19$172.58$173.68259,300——
2018-04-18$171.38$172.47411,500——
2018-04-17$172.93$174.03554,700——
2018-04-16$171.36$172.45497,100——
2018-04-13$169.25$170.32618,700——
2018-04-12$173.31$174.41542,100——
2018-04-11$170.82$171.90548,300——
2018-04-10$176.28$177.40799,100——
2018-04-09$174.68$175.79383,300——
2018-04-06$176.44$177.56454,700——
2018-04-05$182.01$183.17405,700——
2018-04-04$183.93$185.10378,900——
2018-04-03$181.44$182.59399,500——
2018-04-02$180.43$181.58518,500——
2018-03-29$189.58$190.78266,600——
2018-03-28$185.00$186.17356,000——
2018-03-27$185.23$186.41418,800——
2018-03-26$188.60$189.80289,000——
2018-03-23$180.92$182.07344,400——
2018-03-22$185.17$186.35348,800——
2018-03-21$192.26$193.48375,100——
2018-03-20$189.25$190.45513,200——
2018-03-19$190.66$191.87419,800——
2018-03-16$192.40$193.62776,000——
2018-03-15$190.46$191.67306,900——
2018-03-14$193.46$194.69300,100——
2018-03-13$194.95$196.19409,100——
2018-03-12$194.73$195.97355,500——
2018-03-09$196.11$197.36345,700——
2018-03-08$191.54$192.76396,700——
2018-03-07$190.10$191.31411,600——
2018-03-06$191.80$193.02290,600——
2018-03-05$188.16$189.35425,100——
2018-03-02$187.48$188.67264,400——
2018-03-01$185.37$186.55418,500——
2018-02-28$189.36$190.56499,800——
2018-02-27$190.25$191.46512,500——
2018-02-26$194.86$196.10357,900——
2018-02-23$190.01$191.22274,100——
2018-02-22$186.83$188.02421,100——
2018-02-21$189.03$190.23466,400——
2018-02-20$187.30$188.49477,300——
2018-02-16$191.79$193.01366,900——
2018-02-15$190.29$191.50609,600——
2018-02-14$189.45$190.65689,100——
2018-02-13$181.93$183.09638,600——
2018-02-12$181.19$182.34380,400——
2018-02-09$180.24$181.38593,000——
2018-02-08$179.11$180.25719,000——
2018-02-07$187.87$189.06590,000——
2018-02-06$190.70$191.61702,300——
2018-02-05$188.50$189.40526,200——
2018-02-02$197.11$198.05450,300——
2018-02-01$201.76$202.72474,300——
2018-01-31$199.63$200.58859,400——
2018-01-30$203.22$204.19761,700——
2018-01-29$209.21$210.21571,000——
2018-01-26$215.76$216.79399,400——
2018-01-25$211.00$212.01217,100——
2018-01-24$211.45$212.46491,700——
2018-01-23$212.92$213.93222,400——
2018-01-22$213.97$214.99259,900——
2018-01-19$212.00$213.01490,000——
2018-01-18$205.32$206.30216,500——
2018-01-17$207.68$208.67331,100——
2018-01-16$203.01$203.98387,200——
2018-01-12$202.80$203.77245,500——
2018-01-11$200.72$201.68264,400——
2018-01-10$198.38$199.33333,000——
2018-01-09$200.27$201.22304,800——
2018-01-08$200.53$201.49230,900——
2018-01-05$199.47$200.42247,700——
2018-01-04$198.54$199.49362,900——
2018-01-03$202.12$203.08278,900——
2018-01-02$203.04$204.01273,100——