Not all blue chips behave like safe havens. Some of the biggest names on the American stock market carry a Beta so high that they amplify every index swing into an outsized move, turning ordinary trading sessions into roller-coaster rides. We identified eleven large-cap stocks whose sensitivity to the S&P 500 dwarfs the rest of the market. For aggressive traders, these names spell opportunity. For the unprepared, they can mean devastating drawdowns in a matter of days. Here is what makes them so explosive and whether the reward truly justifies the ride.

Stock markets are inherently volatile, but the degree of volatility varies dramatically from one title to the next. While some companies move more or less in line with the broader market, others react to each index move with significantly greater amplitude. It is this characteristic that is measured by the Beta indicator, which is one of the fundamental tools of modern investment analysis and an integral part of the Capital Asset Pricing…