Witching

(Bloomberg) -- The massive expiration of Wall Street options not only left stocks struggling for a clear direction, but also sent one of the bull market's leaders into a volatile ride.Most read from BloombergAbout $5.5 trillion is…

(Bloomberg) -- The stock market fell as tech sold off and a pile of options expiring Friday threatened to trigger sudden price swings.Most Read from BloombergWall Street is facing a quarterly episode ominously known as triple witching in…