BALTIMORE ( Stockpickr) -- Increased volatility ruled the market yesterday as the S&P 500 found itself in the biggest single-day losses in the past two months. While the index's 1.01% slide was a big change from the seemingly unstoppable rally that stocks have seen since the start of December, it hardly illustrates the wild price swings seen by stocks in this week's trading.After all, while we've long been overdue for some selling, traders haven't been expecting the bizarre market behavior that characterized yesterday's market session. Heightened buying and selling activity, fueled by earnings data and economic news, is widely increasing stocks' average daily ranges, a factor in the spiking volatility that's sent the CBOE Market Volatility Index, or VIX, up double digits already this week. Volatility isn't a universal signal to exit the markets, though. For technical traders, that increased flux can be a sign that there's money to be made in some of the biggest-name stocks on Wall Street. Related: 3 Stocks Setting Up to Break Out In case you're not familiar, technical analysis uses a stock's price movements to determine where shares are headed in the future. Technical charts are used every day by proprietary trading floors, the Street's biggest financial firms and individual investors to get an edge on the market. And according to some sources, skilled technical traders can bank gains as much as 90% of the time. Here's this week's look at how some of the biggest names on Wall Street are trading technically.