Marsh & McLennery Stock Plummets 2.38% Amid Strategic Review Slides to 260th in U.S. Trading Volume Rankings

, . The insurer ranked 260th in trading activity among U.S. equities, indicating reduced short-term liquidity interest. The move follows a regulatory filing earlier in the week revealing a strategic review of its specialty casualty business, which has triggered speculation about potential divestitures or operational restructurings. Analysts noted the filing could accelerate capital allocation strategies amid broader industry pressures on underwriting margins.

Market participants are closely monitoring the firm’s third-quarter claims data, which is due for release in early October. , potentially pressuring Marsh’s loss ratio assumptions. While the company has maintained its 2025 earnings guidance, uncertainty around reserve adequacy and pricing power in its brokered insurance segments remains a key near-term risk. Institutional selling pressure has also intensified, .

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