THE FED HOLDS: Here's what you need to know

Stocks slumped on Wednesday after the Federal Reserve held rates.
The major indices retraced some of their losses later in the afternoon, and the Dow managed to squeak into the green.
However, the S&P 500 and the Nasdaq finished slightly in the red.
First up, the scoreboard:
Dow: 20,959.23, +9.34, (+0.04%)
S&P 500: 2,389.70, -1.43, (-0.06%)
Nasdaq: 6,076.93, -18.59, (-0.31%)
US 10-year yield: 2.323%, +0.027
WTI crude oil: $47.47, +0.08, +0.17%
1. The Federal Reserve held rates and s