10 things you need to know before the opening bell (SPY, SPX, QQQ, DIA, FB, TSLA, AMD, MSFT)

Here is what you need to know. 
Stocks go negative for the year. The Dow Jones industrial average plunged more than 600 points on Wendesday, sending it into negative territory for the year. It's on track to open higher by 200 points on Thursday. 
New home sales dropped sharply in September. New home sales in the US fell 5.5% in September, making for the fourth straight monthly decline, according to data released Wednesday by the Commerce Department. 
Medicaid enrollment didn'