Jenny Horne believes Marvell (MRVL) overall had a "pretty good report" that didn't completely wash away investor hesitation. She says the company's custom silicon business and offloading of its auto business are positives, though Jenny sees future expenses being an issue for investors. As for Costco (COST), the big box retailer traded lower after earnings. Jenny notes Costco handling tariffs in a positive way and exemplary customer loyalty as strong tailwinds.