Super Micro shares begin trading Tuesday on a split-adjusted basis. The stock’s drop between the announcement date and effective date could be the steepest in more than two years.

On Sept. 25, a group of 16 analysts had an average one-year price target on Supermicro stock of $729.19. That represents around 60% upside from the stock's closing price on Sept. 25, which was a day before a Wall Street Journa l article helped fuel a 12% drop.

Super Micro Computer’s once-highflying stock is set to split next week after taking a beating over regulatory concerns and disappointing financial results. Super Micro said on Aug. 6 that its board of directors had authorized a 10-for-1 split of its common stock,