Dow tumbles more than 500 points, wipes out gains for the entire year

Stocks dropped sharply on Friday, concluding what has been a wild week for Wall Street. A weaker-than-expected jobs report and China-U.S. trade tensions sent the Dow Jones Industrial Average lower by 558.72 points to 24,388.95 and erased its gains for the year.

At one point, the Dow was up more than 8 percent for 2018.

The S&P 500 pulled back 2.3 percent to 2,633.08 and also turned negative for the year. The Nasdaq Composite dropped 3.05 percent to close at 6,969.25. Shares of large-cap tech companies led the way lower. Facebook, Amazon, Netflix and Google-parent Alphabet all traded lower. Apple's stock also fell 3.6 percent — erasing its gains for the year — after Morgan Stanley cut its price target on the tech giant's shares, citing weakening iPhone sales.

For the week, the major indexes all dropped more than 4 percent. Thursday's session included a violent drop of nearly 800 points, followed by a strong rebound from those levels. This week was also the worst for the indexes since March.

Indexes fell to their lows of the day after the Wall Street Journal reported federal prosecutors are expected to bring charges against Chinese hackers allegedly trying to break into technology service providers in the U.S., another negative headline amid tense trade talks between the two countries.

Investors worried about the U.S. and China striking a permanent deal on trade after news of the Huawei CFO's arrest broke.

Investors also grappled with fears of an economic slowdown this week. The yield on the 3-year Treasury note yield broke above its 5-year counterpart earlier in the week, a phenomenon referred to as an inversion. Historically, when short-term yields move above longer-term rates, it signals a recession could arrive in the near future.

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