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	70	40
Risk Band	HIGH	LOW
IV Rank	54.2	48.9
IV %	31.5%	30.4%
Edge Score	-16	+9
Price Δ	-1.3%	-1.2%
Next Earnings	2026-10-26	2026-10-30
Sector	Financials	Financials

Which has higher options risk?

ARCH CAPITAL GROUP LTD. (ACGL) currently carries the higher options risk score (70 vs 40 for AON) — meaning more active catalysts that can drive an overnight move. For selling option premium, Aon plc (AON) has the better edge score (+9) — 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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