STOCKS CLOSE MIXED: Here's what you need to know

Stocks opened little changed on Tuesday before quickly losing ground in the morning session.
Around 11 a.m. ET, the Dow was down 104 points, the S&P 500 was down 7, and the Nasdaq was down 10.
Ultimately, the Dow closed down, the Nasdaq closed up, and the S&P ended virtually unchanged.
Let's head to the scoreboard:
Dow: 18,473.75 (-0.10%)
S&P 500: 2,169.18 (0.03%)
Nasdaq: 5,110.05 (0.24%)
WTI Crude oil: $42.66 (-1.1%)
10-year Treasury yield: 1.