HQ Trivia’s downfall, Ferrari’s U-turn, and Warren Buffett’s Berkshire Hathaway’s big red flag

Summary: Ferrari’s cheapening itself to appeal to Millennials -- with a $220K “entry level” car that’s killing it. Warren Buffett’s Berkshire Hathaway enjoyed its record $18.5B in quarterly profits, but 1 specific move may be a red flag about the US economy and stock market. And HQ Trivia’s plummeted out of the top 10 most-downloaded apps, but its problems are even bigger.