Volatility definition, evaporating rapidly; passing off readily in the form of vapor: Acetone is a volatile solvent. See more. If you talk about the volatility of the stock market, stock prices are most likely fluctuating wildly. In chemistry, volatility means the speed with which a substance. In finance, volatility (symbol σ) is the degree of variation of a trading price series over time as 1 Volatility terminology; 2 Mathematical definition ; 3 Volatility origin; 4 Volatility for investors; 5 Volatility versus .. of Portfolio Management papers "We Don't Quite Know What We are Talking About When We Talk About Volatility ". Mathematical definition · Volatility for investors · Criticisms of volatility. Categories Glossary Economy Equity Insurance Budget Marketing Mutual Fund Space Technology Testing Human Resource Finance Real Estate Security Sports Commodity Software Development Analytics HR Entertainment Retail Shipping Astronomy Transportation Education Mathematics. Despite the sophisticated composition of most volatility forecasting models, critics claim that their predictive power is similar to that of best casino miami measures, such as simple past volatility   especially out-of-sample, where different data are used to estimate the models and to test. The formulas used above to convert returns or volatility measures from one time period to another assume a particular underlying model or process. Those are not reliable emotions on which to base long-term investment decisions. Titan Company, PNB among most active stocks in terms of volume. Hot on the Web SBI Share Price Income Tax Return Aadhaar - PAN Card Linking India vs Sri Lanka Bank Fixed Deposits Rates NPS Sensex Today RBI Repo Rate How to File ITR Nifty Sensex Live Monsoon Tips Services Book print ads Online shopping Matrimonial Astrology Jobs Tech Community Property Buy car Bikes in India Free Classifieds Send money to India Used Cars Restaurants in Delhi Remit to India Buy Mobiles Listen Songs News TimesMobile Real Estate Developers Restaurant Deals in Delhi Car Insurance Gadgets Now Free Business Listings CouponDunia Remit2India Techradar AliveAR Getsmartapp App ETMoney Finance App Feedback Manage Notifications. Two instruments with different volatilities may have the same expected return, but the instrument with higher volatility will have larger swings in values over a given period of time. There are also reasons to suspect a positive relationship between volatility and growth. Nearby Terms voidable contract volatile volatile market volatility arbitrage volatility rating volatility ratio. Please ensure you fully understand the risks and take care to manage your exposure. URL to this page: There are volatility indexes. For example, Nassim Taleb famously titled one of his Journal of Portfolio Management papers "We Don't Quite Know What We are Talking About When We Talk About Volatility". From Wikipedia, the free encyclopedia. Those are not reliable emotions on which to base long-term investment decisions. RESOURCES Articles Flashcards Citations All Topics. Broker-dealer Day trader Floor broker Floor trader Investor Market maker Proprietary trader Quantitative analyst Regulator Stock trader. Word Origin and History for volatility Expand.