The following video is from Monday's Investor Beat, in which host Erin Kennedy investigates the hardest-hitting investing stories of the day with Motley Fool analysts Jason Moser and Bill Barker.

Expedia (EXPE 0.33%) is down about 6% today following a downgrade from Deutsche Bank citing increasing competition. Antares Pharma (ATRS) popped early today -- by as much as 10% -- as investors cheered the FDA approval of Otrexup, its injection for severe active rheumatoid arthritis. Whirlpool (WHR -10.13%) stock dropped nearly 6% after a research firm said the company was unlikely to beat expectations or raise its guidance. Finally, biotech player MannKind (MNKD -0.24%)popped about 5% on the news that the company has resubmitted Afrezza, its ultra-rapid inhaled insulin product, for its third attempt at gaining FDA approval.