STOCKS DIP: Here's what you need to know

The Nasdaq edged lower on Tuesday, while the Dow and the S&P 500 were little changed.
Dow: 23,557.23, +8.81, (+0.04%)
S&P 500: 2,590.64, -0.49, (-0.02%)
Nasdaq: 6,767.78, -18.65, (-0.27%)
1. Snap tanked after missing Wall Street's expectations for its third quarter earnings. Shares were down by about 20% in after-hours trading after the firm announced it added only 3 million users in the third quarter. The primary question for investors is whether the young public company can&