Apple Inc. (AAPL) doesn't have much of a historical precedent to predict how its stock will respond to the hype surrounding the release of its newest lineup of iPhones.

Shares of the tech company have tumbled almost as many times as they've soared in the months after the release of a new iPhone in the 10 years Apple has been putting out models, according to Bloomberg data.

When the iPhone 5 was released in 2012, Apple stock plummeted 20% in 60 days. But the iPhone 6 release in 2014 sent Apple stock surging 17% in the following two months.

Shares were unsteady after Tuesday's iPhone 8 and iPhone X release, dropping as much as 1.7% after trading within 0.6% of the stock's Aug. 1 record high of $164.94.

Apple stock was down 0.55% to $159.98 in premarket trading Wednesday. Since the start of the year, Apple shares have shot up close to 40%, easily outperforming the Nasdaq composite's 20% gains during the same period.

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