A wave of earnings is here: Here's a super-quick guide to what traders are talking about right now

Dave Lutz, head of ETFs at JonesTrading, has an overview of today's markets.

• 120 S&P companies report earnings this week.
• Yellen's last FOMC meeting is this week.
• Most of the major cryptocurrencies are starting in the red this morning.

Here's Lutz: