Take a look at some of Wednesday's midday movers:
Dow component Caterpillar dropped after the company reported a 13 percent fall in global sales to dealers, for the three months through February.
Competitor Deere also traded lower after a downgrade from Wells Fargo to "underperform" from "market perform".
Model N raised about $104 million in its successful IPO on the New York Stock Exchange. The revenue software management company sold 6.7 million shares at $15.50 per share.