Tesla shares plunged by 9.5 percent in pre-trading on the exchange. The company’s shares fell from 1,069.4 to 968 euros apiece. At 11:15 Moscow time, 995 euros were given per share.

The drop in shares was preceded by a poll posted by Tesla owner Musk on Twitter. The businessman asked subscribers to decide whether he should sell ten percent of the company’s shares. The poll is linked to a proposal by Democratic Senator Wyden to oblige the richest Americans to pay 23.8 percent tax on stock gains. Musk opposed the initiative and said that he would be able to pay taxes only if he sold shares, inasmuch as this is his only source of income. According to the businessman, in Tesla he does not receive a salary and bonuses.