Update: It seems the same technology glitch also caused AAPL prices to seemingly crash early this morning, with Yahoo Finance, Google Finance and MacOS widgets all showing incorrect prices.

We’re used to seeing the price of AAPL stock fluctuating based on even the flimsiest rumor, but this is something else entirely. Due to a glitch related to the way that Nasdaq stocks are listed on several major financial sites, AAPL shares appeared to quadruple in value following the closing bell on Monday.

While Apple fared well, however, other tech companies were less fortunate. The price of Amazon and Microsoft stocks appeared to lose more than half their value, while Alphabet and eBay shares were stuck at $123.47.

The Nasdaq has been flirting with busting past the 5000 mark for days now, but investors are blaming one stock on holding it back: AAPL.

Apple shares have ballooned to their highest value ever over the past month. After weeks of growth, the stock’s performance has been flattish the last few days, which is a big problem for Wall Street because Apple now accounts for 10% of the Nasdaq’s index value.

AAPL shares have dropped below $400 in early morning trading on Monday. The DOW and NASDAQ both opened to big losses as they dropped 220 points and 53 points.

The share price drop may also be due in part to a report this morning that Apple has significantly reduced iPhone orders for the remainder of 2013. AAPL shares dropped below $400 in April for the first time in over 16 months.

Last year it seemed like there was no end in sight for the rise of Apple’s stock price. Then things started to slip in October thanks to Apple Maps and the management shakeup, and it’s been all downhill from there.

Earlier this morning Apple shares were trading below $400 for the first time in over 16 months, as the stock has continued to slide from its high point of over $700 per share that it enjoyed just last year.