10 things you need to know today (SPY, SPX, QQQ, DIA, CHK, WFC, MON, TWTR)

Here is what you need to know.
The Bank of Japan meets Tuesday evening. There has been growing speculation the central bank will tweak its bond-buying program to include the purchase of more short-term bonds in an effort to steepen the yield curve, The Japan Times reports. The Japanese yen is little changed near 101.90 per dollar.
Jeff Gundlach doesn't think the Fed will raise rates at Wednesday's meeting. The CEO of DoubleLine Capital believes the US Federal Reserve will use a "hawkish no-hike"