Learn how the Ulcer Index measures downside risk through depth and duration of declines. Discover its calculation and ...

Stock market volatility refers to how much a stock's price moves up and down over time. Picture a stock swinging from $50 to $80 and then plummeting back to $30 in a few weeks. That stock has high ...

Volatility is important for position sizing, determining risk, calculating stops and profit-targets, and rebalancing portfolios. Average true range is a useful measure for position sizing in futures ...

Action Alerts PLUS co-portfolio manager Bob Lang explained how the CBOE Volatility Index, or the Vix, can be used to help predict both market rallies and market selloffs. J.D. DURKIN: Bob, you've also ...

The U.S. stock market is unusually quiet after a dramatic start to August, and that's making Wall Street panic - again. Stocks have rebounded quickly after a bruising selloff that shook up global ...

Miranda Marquit has been covering personal finance, investing and business topics for almost 15 years. She has contributed to numerous outlets, including NPR, Marketwatch, U.S. News & World Report and ...

Bollinger Bandwidth is one of the few technical indicators that measures volatility. Most indicators use price and attempt to identify trend changes. Bollinger Bandwidth measures how strong the recent ...

The VIX index is by far the most popular volatility indicator, but it's not the only one. The VOLI is similar to VIX in construction, with one key difference. VOLI only uses at the money SPY options ...