ATO vs CMS: Options Risk Comparison

ATMOS ENERGY CORP and CMS ENERGY CORP compared side by side — risk score, IV Rank, edge and earnings. Updated every 30 minutes.

Metric	ATO	CMS
Risk Score	59	27
Risk Band	MEDIUM	LOW
IV Rank	69.2	82.0
IV %	25.9%	34.8%
Edge Score	+10	+55
Price Δ	-0.6%	-1.1%
Next Earnings	2026-11-04	2026-10-29
Sector	Utilities	Utilities

Which has higher options risk?

ATMOS ENERGY CORP (ATO) currently carries the higher options risk score (59 vs 27 for CMS) — meaning more active catalysts that can drive an overnight move. For selling option premium, CMS ENERGY CORP (CMS) has the better edge score (+55) — 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

ATO risk, IV & earnings CMS risk, IV & earnings

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