Why Affiliated Managers Group, Inc. (AMG) stock moved
Affiliated Managers Group, Inc. (AMG) shares rose 2.0% to $374.37 as of August 15, 2026, a modest gain from the prior close of $367.10. BestStocks flagged the session as a major change for AMG. The move is tied to a new SEC filing. Below, we break down what changed for AMG, why it matters for investors, how the stock reacted, and the catalysts on the calendar.
SEC Filing
Affiliated Managers Group, Inc. (AMG) filed a new 10-Q on 2026-08-07, covering the most recent quarterly period. AMG earnings scheduled for 2026-11-02 (date not yet confirmed).
What it means for Affiliated Managers Group, Inc. investors
For Affiliated Managers Group, Inc. investors, the balance of recent signals points to a bullish shift. On the constructive side: Material positive event; Positive 2.0% session move. Weighing against that: Affiliated Managers Group, Inc. (AMG) moved -6.98% from $366.12 to $340.58 on 2026-07-21; New SEC filing — review for material disclosures. Wall Street's consensus price target sits at $410.00, implying +9.5% upside from $374.37. BestStocks rates the overall signal quality low (49/100). With earnings roughly 79 days out, the next report is the most likely near-term test of the move.
AMG price reaction
AMG last traded at $374.37, up $7.27 (+1.98%) from the previous close of $367.10. The session traded on 0.7× average volume (below avg), so participation was unremarkable.
Bullish and bearish analyst opinions on Affiliated Managers Group, Inc. (AMG)
The consensus analyst price target on Affiliated Managers Group, Inc. (AMG) is $410.00, 9.5% above the recent $374.37. Here is how the bullish and bearish cases on AMG line up.
The bullish case
- Wall Street's consensus price target of $410.00 implies +9.5% upside from $374.37.
- The Street's most bullish target is $425.00 (+13.5%).
- Material positive event.
- Positive 2.0% session move.
- Affiliated Managers Group, Inc. (AMG) moved +3.71% from $366.00 to $379.59 on 2026-07-15.
The bearish case
- Affiliated Managers Group, Inc. (AMG) moved -6.98% from $366.12 to $340.58 on 2026-07-21.
Weighing both sides, BestStocks' composite read of recent signals is bullish, as the bull-versus-bear meter above shows. This is an educational summary of the bull and bear case, not investment advice.
Analyst price targets and ratings are FMP consensus figures as of Aug 15, 2026; other aggregators may differ. High and low targets show the range of estimates, not forecasts.
Previous notable changes for AMG
Frequently asked questions about AMG
Why did Affiliated Managers Group, Inc. (AMG) stock move?
AMG rose 2.0% to $374.37. The move is associated with a new SEC filing.
How much did AMG stock rise?
AMG gained 1.98% ($7.27) versus the prior close of $367.10, last trading at $374.37 on 0.7× average volume.
When is Affiliated Managers Group, Inc.'s next earnings date?
AMG's next earnings report is estimated for 2026-11-02 — about 79 days away.
What is the analyst price target for AMG?
The consensus analyst price target for AMG is $410.00, about 9.5% above the current $374.37. Over the past 90 days, analysts recorded 0 upgrades, 0 maintains, and 0 downgrades.
How BestStocks tracks AMG
This page is generated automatically by BestStocks' change-detection system after a new SEC filing was detected and verified against independent data sources. It draws on 15 tracked change events for AMG, cross-checked against the data sources listed below. Price, volume, and market-capitalization figures are the live intraday quote as of August 15, 2026 and refresh as new information is detected; for companies with multiple share classes, market-cap figures can differ by data source. Analyst price targets and ratings are FMP consensus. This is an educational summary of what changed and why — not personalized investment advice.