StoneX Group Inc
StoneX Group Inc (SNEX) Historical Volatility
SNEX 30-day historical volatility is 31%. This ranks in the 1th percentile of readings over the past year.
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Tracking SNEX historical volatility helps you see how much StoneX Group Inc's stock price has actually moved over past periods, giving you a baseline to judge whether current option premiums are fair, cheap, or expensive. While implied volatility tells you what the market expects, StoneX Group Inc's HV tells you what really happened. Use our scanner to monitor SNEX 30 day historical volatility alongside longer lookback windows and spot the moments when realized and implied diverge.
Historical volatility is the annualized standard deviation of an underlying's past returns, typically measured over rolling windows like 10, 20, 30, or 60 days. The SNEX 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing StoneX Group Inc's HV to its implied volatility reveals the volatility risk premium — when IV sits well above HV, option sellers tend to have an edge; when HV runs hot relative to IV, buyers may be underpaying for movement.
StoneX Group Inc. operates as a global financial services network that connects companies, organizations, traders, and investors to market ecosystem worldwide. Its Commercial segment provides risk management and hedging, exchange-traded and OTC products execution and clearing, voice brokerage, market intelligence, physical trading, and commodity financing and logistics services. The company's Institutional segment provides equity trading services to institutional clients; and originates, structures, and places debt instruments in capital markets worldwide. Its services cover foreign securities, including unlisted American Depository Receipts, Global Depository Receipts, and foreign ordinary shares.
This segment also operates as an institutional dealer in fixed income securities to serve asset managers, commercial bank trust and investment departments, broker-dealers, and insurance companies; engages in asset management business; and offers clearing and execution services in futures exchanges, brokerage foreign exchange services for the financial institutions and professional traders, and OTC products. The company's Retail segment provides trading services and solutions in the global financial markets, including spot foreign exchange, precious metals trading, and contracts for differences; and wealth management and investment services, as well as offers physical gold and other precious metals in various forms and denominations through coininvest.com and silver-to-go.com. Its Global Payments segment provides foreign exchange and treasury services to banks and commercial businesses, charities, and non-governmental and government organizations; and payments services. The company was formerly known as INTL FCStone Inc. and changed its name to StoneX Group Inc. in July 2020. StoneX Group Inc. was founded in 1924 and is headquartered in New York, New York.
Sizing a long premium trade, modeling a covered call, or hunting volatility arbitrage all come back to one question: how much has the stock actually moved? Our scanner puts StoneX Group Inc's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where SNEX HV is running hot, cold, or in line. Make the SNEX 30 day historical volatility — and every other window — work for your edge instead of against it.
As of September 25, 2026
As of September 25, 2026
See how volatility has moved over time
Track SNEX historical volatility, spot where IV and realized volatility diverge, and find options that are priced in your favor right now.
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