Shutterstock.com / Robert Goode
The first is Microsoft's surprise purchase of Nokia's Smartphone business for $7 billion.
The other is the major rally in Japan, which followed all of Monday's good economic data.
If you're just tuning into stuff after the long weekend, the two things you missed were strong economic data (good PMI numbers in Europe and China) and a solid European stock market rally on Monday, while the US market was closed.
Expect US stocks to pop in the early going.