Here are five key things investors need to know to start the trading day.

Squawk Box is a CNBC morning news and talk program focusing on business, finance, and market trends. It features interviews with industry leaders and real-time market updates.

This is CNBC's Morning Squawk newsletter. Subscribe here to receive future editions in your inbox. Happy Tuesday. If you're watching "Squawk Box" this morning, you may have noticed a different ...