How the largest silver miner in Mexico is trying to get out of a $500 million tax bill. Gainesville Coins' Everett Millman tells us about First Majestic Silver (AG). Opendoor Technologies (OPEN) explains its unique method of selling homes.  Oracle (ORCL) faces some new challenges in the cloud. Crocs (CROX) bets on a huge post-pandemic boom for its iconic, yet polarizing shoes. Apple (AAPL) races to plug a software vulnerability. The Drill Down with Cory Johnson offers a daily look at the business stories behind stocks on the move. Learn more about your ad choices. Visit megaphone.fm/adchoices