Apple shares reversed earlier losses in volatile trading Thursday, a day after logging its biggest one-day drop in four years, but some professional traders remain bearish on the technology stock.


Apple Flag

Shares of the iPhone and iPad maker are down more than 20 percent from its all-time high of $705 in September, trading in bear market territory. Apple's chart is very close to forming a "death cross" — where the stock's 50-day moving average falls below the 200-day moving average. Technicians usually see the sign as a cue to sell.