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Affiliated Managers Group, Inc. logo

Affiliated Managers Group, Inc. (MGRB) stock

MGRBNYSEInvestment AdviceFiscal year ends December 31Also trades as AMG, MGR, MGRD, MGRE
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 7, 2026Score 15/307% below fair value
$15.28+0.05 (+0.33%)

Close on Oct 30, 2026Market cap $411.03MP/E 0.5Yield 0.26%

Price history

Affiliated Managers share prices for every week, newest first. Adjusted for stock splits, not for dividends.

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Close, Oct 30, 2026
$15.28
+0.33% on the day
52-week range
$15.11 – $17.92
-14.7% from the high
Change over 52 weeks
-13.3%
From $17.62 on Oct 30, 2025
Average volume
24,636
Shares a day, last 90 sessions
Week ofOpenHighLowCloseChangeVolume
Oct 26, 2026$15.21$15.59$15.11$15.28-0.20%295,390
Oct 19, 2026$15.29$15.60$15.15$15.310.00%92,210
Oct 12, 2026$15.50$15.65$15.19$15.31-1.32%156,893
Oct 5, 2026$15.73$15.96$15.21$15.52-1.49%104,976
Sep 28, 2026$16.34$16.34$15.73$15.75-3.61%113,834
Sep 21, 2026$16.23$16.35$16.00$16.34+1.18%107,865
Sep 14, 2026$16.15$16.23$15.83$16.15+0.03%157,921
Sep 8, 2026$16.25$16.28$15.97$16.15-0.65%113,182
Aug 31, 2026$16.10$16.25$15.86$16.25+0.99%124,742
Aug 24, 2026$16.19$16.25$16.08$16.09-0.49%100,801
Aug 17, 2026$16.35$16.47$16.01$16.17-1.82%62,281
Aug 10, 2026$16.60$16.72$16.32$16.47-0.72%73,299
Aug 3, 2026$16.74$16.82$16.53$16.59-1.01%34,927
Jul 27, 2026$16.92$16.92$16.68$16.76-0.24%126,224
Jul 20, 2026$16.94$17.06$16.70$16.80-0.94%109,644
Jul 13, 2026$16.55$17.16$16.35$16.96+2.54%152,867
Jul 6, 2026$16.24$16.55$16.22$16.54+1.47%129,900
Jun 29, 2026$16.13$16.35$15.93$16.30-0.31%119,065
Jun 22, 2026$16.85$16.92$16.21$16.35-2.97%79,037
Jun 15, 2026$16.73$16.97$16.67$16.85+0.96%92,388
Jun 8, 2026$16.86$16.90$16.49$16.69-1.01%107,409
Jun 1, 2026$16.76$17.09$16.70$16.86+0.30%203,218
May 26, 2026$16.78$16.81$16.67$16.81+0.90%80,213
May 18, 2026$16.83$17.06$16.66$16.66-1.30%66,056
May 11, 2026$16.85$17.05$16.81$16.88-0.12%70,954
May 4, 2026$16.70$16.92$16.63$16.90+0.48%52,649
Apr 27, 2026$16.82$16.99$16.42$16.82+0.78%104,984
Apr 20, 2026$16.90$16.92$16.56$16.69-0.65%61,091
Apr 13, 2026$16.48$16.93$16.37$16.80+2.00%46,138
Apr 6, 2026$16.15$16.91$15.98$16.47+2.04%63,159
Mar 30, 2026$16.39$16.42$15.81$16.14-0.25%99,349
Mar 23, 2026$16.59$16.77$16.13$16.18-2.59%67,409
Mar 16, 2026$16.90$17.16$16.56$16.61-2.06%61,908
Mar 9, 2026$17.28$17.34$16.82$16.96-2.14%95,776
Mar 2, 2026$17.53$17.74$17.31$17.33-1.25%47,397
Feb 23, 2026$17.65$17.84$17.43$17.55-1.13%107,807
Feb 17, 2026$17.77$17.92$17.60$17.75+0.34%46,331
Feb 9, 2026$17.57$17.77$17.51$17.69+1.03%59,577
Feb 2, 2026$17.50$17.72$17.47$17.51+0.29%110,092
Jan 26, 2026$17.55$17.67$17.38$17.46-0.51%76,336
Jan 20, 2026$17.40$17.59$17.24$17.55+0.06%138,251
Jan 12, 2026$17.34$17.71$17.18$17.54+0.98%124,620
Jan 5, 2026$17.24$17.42$17.05$17.37+1.22%152,870
Dec 29, 2025$16.97$17.22$16.88$17.16-0.29%103,966
Dec 22, 2025$17.57$17.57$17.09$17.21-1.82%73,102
Dec 15, 2025$17.45$17.71$17.32$17.53-0.12%75,524
Dec 8, 2025$17.10$17.67$17.10$17.55+2.09%139,914
Dec 1, 2025$17.35$17.39$17.05$17.19-1.32%146,108
Nov 24, 2025$17.12$17.42$17.12$17.42+1.69%38,786
Nov 17, 2025$17.52$17.52$17.03$17.13-2.06%63,555
Nov 10, 2025$17.62$17.81$17.27$17.49-0.46%65,956
Nov 3, 2025$17.61$17.64$17.32$17.57+0.29%86,173

Seasonality

MGRB return in each calendar month over the last 7 years, including dividends. The current month runs to the latest close.

YearJanFebMarAprMayJunJulAugSepOctNovDec
Average3.2%-2.0%-3.0%-0.4%0.0%-0.1%3.4%-1.7%-0.4%-2.4%2.3%0.4%
Months up4 of 62 of 61 of 63 of 64 of 62 of 66 of 62 of 63 of 61 of 74 of 63 of 6
20262.9%0.5%-6.8%2.9%1.7%-2.0%3.6%-4.5%1.8%-4.4%
20252.6%0.0%-4.4%-3.5%-3.4%5.4%2.9%4.4%0.7%-2.8%-0.6%-0.9%
20241.1%2.2%-0.4%-3.6%1.6%1.9%1.0%2.8%3.5%-1.4%0.2%-6.4%
202318.9%-1.3%-7.4%11.0%-8.6%-1.0%4.2%-4.2%-5.4%-0.8%5.8%11.5%
2022-5.5%-9.1%-1.5%-10.3%7.1%-4.9%6.0%-7.5%-2.4%-8.2%10.1%-9.1%
2021-0.7%-4.6%2.5%1.3%1.6%-0.3%2.8%-1.3%-0.4%-0.2%-2.7%5.6%
20201.4%0.9%1.8%