Hours before Warner Bros. Discovery agreed to sell its studio and streaming assets to Netflix, Ted Sarandos, the co-CEO of Netflix, called WBD CEO David Zaslav to inform him Netflix wouldn’t be bidding any higher.

WBD shareholders now have a chance to call Sarandos’ bluff.

WBD shareholders have until Jan. 8 to tender their shares to Paramount for $30 in cash, though that deadline may be artificial. Paramount can extend it all the way to WBD’s annual meeting, which hasn’t been set yet but this year took place June 2.

If Paramount acquires 51% of outstanding WBD shares, it would control the company, even though the WBD board already agreed to sell the company’s studio and streaming assets to Netflix. Both Netflix and Paramount can use the coming days and weeks to speak with WBD shareholders to gauge whether they’d like to take Paramount’s offer or stick with the board’s recommendation to sell to Netflix.

To tender or not to tender, that is the question. There are sound arguments for both sides. The decision also presents a game theory element for shareholders who may simply want a bidding war rather than caring about the right buyer.

Paramount Skydance CEO David Ellison told CNBC earlier this month he values Discovery Global at $1 per share, given his prediction on the likely multiple (2 times earnings before interest, taxes, depreciation and amortization) at which it will trade based on current valuations for similar linear cable networks. If WBD doesn’t agree to sell the entire company to Paramount, it plans to split Discovery Global out as its own publicly traded entity in mid-2026.

Paramount’s argument is that $30 per share is already greater than Netflix’s $27.75-per-share offer plus $1 for Discovery Global.

Paramount’s bid is also all cash, while Netflix’s bid includes 16% equity with a so-called “collar,” which means shareholders won’t know exactly how much Netflix stock they’ll actually receive until the deal closes.

As for regulatory approval, Paramount has played up arguments that a combined Netflix and HBO Max streaming business would be anticompetitive. Netflix has more than 300 million global paying customers. The idea of the largest streamer buying HBO Max has already raised concerns with politicians, including President Donald Trump, who said there may be a “market share” issue with a Netflix deal.

While Paramount would combine Paramount+ with HBO Max, Paramount+ has about 80 million subscribers, presenting less of a risk to competition.

The second, more nuanced argument to tender is to maximize upside even if the assets ultimately go to Netflix.

Ellison has already made it known Paramount’s $30-per-share offer isn’t best and final. Tendering could cause Netflix to come back with a higher offer, which may then prompt Paramount to raise its bid as well.

GAMCO Investors chairman and CEO Mario Gabelli told CNBC earlier this month “the notion of Company A and Company B having a bidding war — that’s what we like as part of the free market system.”

He added last week that while he was previously leaning toward tendering his shares to Paramount, “the most important part is to keep it in play.”

Paramount altered the terms of its deal Monday to help address funding concerns. Oracle founder Larry Ellison, the father of David and one of the world’s five wealthiest people, agreed to provide “an irrevocable personal guarantee of $40.4 billion of the equity financing for the offer and any damages claims against Paramount,” should the existing financing fall through, Paramount said in a statement.

Paramount also said Monday it will publish records confirming the Ellison family trust “owns approximately 1.16 billion shares of Oracle common stock and that all material liabilities of the Ellison family trust are publicly disclosed.” Paramount has said the family trust will backstop the financing. WBD’s board had previously argued the trust is an “opaque entity,” preferring a direct commitment from the Ellisons.

Notably, even with the Monday announcement, the Ellisons haven’t increased their personal equity investment, which still stands at $12 billion. Internally, some WBD executives have cited the 1970 Carl Reiner movie “Where’s Poppa?” when speaking about the bid, according to a person familiar with the matter. WBD has pushed for the Ellisons to commit more personal money to the deal.

Still, a WBD shareholder may not care where the funding is coming from as long as it’s there. The three SWFs involved in the deal are the Saudi Arabian Public Investment Fund (PIF), Abu Dhabi’s L’imad Holding Company and the Qatar Investment Authority (QIA). The PIF and QIA, in particular, are known institutions that have contributed billions of dollars to other U.S.-based deals.