ACGL vs AON: Options Risk Comparison

ARCH CAPITAL GROUP LTD. and Aon plc compared side by side — risk score, IV Rank, edge and earnings. Updated every 30 minutes.

Metric	ACGL	AON
Risk Score	97	82
Risk Band	HIGH	HIGH
IV Rank	59.5	65.3
IV %	36.3%	35.9%
Edge Score	-38	-17
Price Δ	-1.0%	-0.8%
Next Earnings	2026-10-27	2026-10-28
Sector	Financials	Financials

Which has higher options risk?

ARCH CAPITAL GROUP LTD. (ACGL) currently carries the higher options risk score (97 vs 82 for AON) — meaning more active catalysts that can drive an overnight move. For selling option premium, Aon plc (AON) has the better edge score (-17) — a stronger blend of high IV Rank and low risk.

Risk score (0–100) reflects active catalysts — earnings, legal, SEC filings and news. Edge score = IV Rank − risk score; higher is better for selling premium.

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Full risk pages

ACGL risk, IV & earnings AON risk, IV & earnings

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