10 things you need to know before the opening bell (SPY, SPX, QQQ, DIA, EFX)

Here is what you need to know.
The US stock market is on the cusp of history. The S&P 500 has delivered a total-return gain for every month of 2017, matching 1995 as the only occurrences in history, Deutsche Bank's Jim Reid says. It's on track to break the record with a 10th straight month of gains, trading up 1.24% in October.
Stocks are behaving in a way not seen since the tech bubble. As of earlier this month, 65% of the risk associated with the average S&P 500 stock was inexplainable