Phil Blancato says the market's recent run-up has been fueled by seasonality and investors' "fear of missing out," but he thinks we're due for a correction. With valuations at all-time highs, even a small pullback could turn into a bigger sell-off. Blancato still sees value in some areas, however, including General Motors Company (GM) and Travelers Companies, Inc. (TRV), which he thinks are trading at discounts to their growth potential.