How to Trade Stock With Intraday Volatility

Open an investment account. In order to trade stocks, the trader must first have an investment account. To participate in day-trading activities, the trader must have at least $25,000 in his account.
Track the VIX. The VIX is a measure of volatility. The higher the number, the more volatility a trader can expect on a given trading day. Moderate volatility is often defined as a VIX in the high 20s to high 30s. As the number falls, it becomes more difficult to profit on intraday variances because markets tend to be more flat.
Find a list of high beta stocks. A high beta stock is a stock that moves up or down at a higher rate than the overall market. If a stock has a beta of 1, when the S&P 500 goes up 1 percent, the stock will as well. A trader looking to profit on volatility often trades stocks with a beta higher than 1. The higher the beta, the better.
Research those stocks on the high-beta stock list. A combination of technical and fundamental analysis will reveal those stocks that have the potential for a big, short term move.
Place a combination of long and short trades. Volatility traders often use a combination of short-selling and traditional long trading to both protect their assets and attempt to profit when the price of a stock goes up and down.