The news broke on Friday morning that Netflix had agreed to buy Warner Bros. Discovery in a move that will cost a reported $72 billion.

There had been rumbles about the potential deal for weeks, and now this sets up for a battle of media giants to compete against Paramount, Walt Disney and more.

But why, then, is -- as of publishing this -- Netflix's stock down? Shouldn't this mean it goes up?

Here's what we know.

There might be concerns about the cost of the Netflix and Warner Bros deal

This is A LOT of money to spend on Warner Bros, so perhaps investors are concerned there.

There are questions about antitrust and regulatory issues with the Netflix and Warner Bros deal

Could the United States and Europe allow this to happen, especially if it could increase prices for consumers? That's the big question.

More from USA TODAY:

To ease concerns about market concentration, Netflix argued in deal talks that a potential combination of its streaming service with HBO Max would benefit consumers by lowering the cost of a bundled offering, Reuters reported on Tuesday.

"This deal is pro-consumer, pro-innovation, pro-worker, pro-creator and pro-growth," said [Netflix co-CEO Ted] Sarandos, who expressed confidence the deal could be consummated.

This article originally appeared on For The Win: Why Netflix's stock price is dropping despite Warner Bros deal news

Reporting by Charles Curtis, For The Win / For The Win

USA TODAY Network via Reuters Connect