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Office Depot issues warning, Tesla under delivers, Zuckerberg defends Facebook

Here are the companies Yahoo Finance is watching today.

A warning from Office Depot (ODP). The company says it expects revenue to come in lower than expected this quarter. That's driven mostly by weak performance at its CompuCom operation. Higher costs are also hitting its business solutions division.

Tesla (TSLA) is in the spotlight after revealing it delivered 31% fewer cars last quarter than many analysts were expecting. It's also warning that first quarter income will be impacted by lower delivery volumes. Later today, a judge will hear arguments in Elon Musk's battle against the SEC.

Mark Zuckerberg is defending Facebook (FB) amid new scandals. The social network's CEO told ABC the company will work to "amplify the good" and remove as much negative content as possible.

There's a new person at the top of PG&E (PCG). The embattled California utility named the current head of the TVA Bill Johnson as its next chief executive and announced a new board. PG&E worked with a group of activist investors to remake its leadership. This comes as the company deals with billions in potential liabilities from its role in starting deadly wildfires and looks for a path out of bankruptcy.

It looks like iHeartMedia is gearing up for an IPO. The radio broadcaster filed for an initial public offering yesterday, just months after its bankruptcy plan was approved, detailing a path to solvency. The company has been pitching potential investors on radio’s reach and the appeal of its personalized playlists and song recommendations.