Caterpillar Steamrollers Higher and Other #Stocks2Watch

#Stocks2Watch: FOX Business rounds up the stocks you should watch before the opening bell rings on Wall Street. Tweet @adamsamson or e-mail adam.samson@foxbusiness.com and tell us what stocks you're watching -- your picks could appear online!

1. Caterpillar [CAT]

Caterpillar revealed fourth-quarter results that handily beat Wall Street's expectations. The world's biggest maker of heavy machinery also unveiled a fresh $10 billion share buyback program. The shares are rolling higher by more than 5% in early action.

2. Apple [AAPL]

Apple is due to report its quarterly results after the closing bell. The world's biggest technology company is expected to log fiscal first-quarter net income of $12.7 billion on revenues of $57.5 billion. Analysts will also be paying close attention the iPhone-maker's profit margin, expected to come in at 37.31%.

3. Cisco [CSCO]

Cisco Systems share are sliding 2% in pre-market action after JPMorgan Chase cut the networking-equipment maker to "underweight" from "neutral."

4. Vodafone [VOD]

Vodafone shares traded in the U.S. are coming under pressure in pre-market action after AT&T said it isn't mulling a bid for the European telecommunications heavyweight.

5. Merck [MRK]

Merck shares are up more than 1% in pre-market trading after analysts at Morgan Stanley upgraded the pharmaceutical giant to "overweight" from "underweight."