Berkshire Hathaway (BRK/B) shares are not moving much as the company's cash pile builds to $357 billion after earnings. Diane King Hall notes that Warren Buffett's legacy company still faces uncertainty in some parts of its balance sheet. DraftKings (DKNG) is struggling to shake its post-earnings tumble after three analysts downgraded the stock. Diane then travels to Airbnb (ABNB), where shares hit a five-year high after receiving an upgrade.