Tech Titans Zuckerberg, Bezos, Pichai and Cook testify in a Congressional antitrust hearing. 

Shares of Moderna are higher as it kicks off Phase 3 trials of its COVID-19 vaccine today. But there’s a key consideration when it comes to recruiting volunteers. We’ll explore. Plus, while investors have been eyeing the stay-at-home trade lately, solar energy has been red hot too. But can the sector keep powering higher? We’ll discuss with an industry analyst. And, safe havens like Gold, Silver and bonds are rallying right alongside the stock market. Is there a common thread driving all of these assets higher? Our market experts debate.