Elon Musk on Saturday asked his 62.5 million Twitter followers to determine the future of a chunk of his Tesla holdings.

Twitter polls are informal, however, and Musk previously said he was likely to sell "a huge block" of his options in the fourth quarter.

At an appearance at the Code Conference in September, Musk said when his stock options expire at Tesla, his marginal tax rate will be over 50% and that he was already planning to sell soon.

"I have a bunch of options that are expiring early next year, so ... a huge block of options will sell in Q4 — because I have to or they'll expire," Musk said at the conference.