Analysts: 'Neutral' on Apple & 'Buy' on Caterpillar

Wednesday, 25 Apr 2012 | 12:00 PM ET

Apple now accounts for 36% of all profit growth for the S&P 500 this quarter, but Walter Piecyk, BTIG Research analyst explains why he downgraded the company ahead of its earnings. Stephen Volkmann, Jefferies analyst, also discusses his 'buy' rating on Caterpillar.