Ally Financial Inc (ALLY) Historical Volatility

Tracking ALLY historical volatility helps you see how much Ally Financial 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, Ally Financial Inc's HV tells you what really happened. Use our scanner to monitor ALLY 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 ALLY 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing Ally Financial 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.

Ally Financial Inc., a digital financial-services company, provides various digital financial products and services to consumer, commercial, and corporate customers primarily in the United States and Canada. It operates through four segments: Automotive Finance Operations, Insurance Operations, Mortgage Finance Operations, and Corporate Finance Operations. The Automotive Finance Operations segment offers automotive financing services, including providing retail installment sales contracts, loans and operating leases, term loans to dealers, financing dealer floorplans and other lines of credit to dealers, warehouse lines to automotive retailers, and fleet financing.

It also provides financing services to companies and municipalities for the purchase or lease of vehicles, and vehicle-remarketing services. The Insurance Operations segment offers consumer finance protection and insurance products through the automotive dealer channel, and commercial insurance products directly to dealers. This segment provides vehicle service and maintenance contract, and guaranteed asset protection products; and underwrites commercial insurance coverages, which primarily insure dealers' vehicle inventory. The Mortgage Finance Operations segment manages consumer mortgage loan portfolio that includes bulk purchases of jumbo and low-to-moderate income mortgage loans originated by third parties, as well as direct-to-consumer mortgage offerings. The Corporate Finance Operations segment provides senior secured leveraged cash flow and asset-based loans to middle market companies; leveraged loans; and commercial real estate product to serve companies in the healthcare industry. The company also offers commercial banking products and services. In addition, it provides securities brokerage and investment advisory services. The company was formerly known as GMAC Inc. and changed its name to Ally Financial Inc. in May 2010. Ally Financial Inc. was founded in 1919 and is based in Detroit, Michigan.

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 Ally Financial Inc's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where ALLY HV is running hot, cold, or in line. Make the ALLY 30 day historical volatility — and every other window — work for your edge instead of against it.