Nasdaq Index turned down in morning trading with Tesla's market value fell below 1 trillion dollars.According to the documents disclosed by the SEC, Musk sold 1.2 million Tesla Motors shares on the 12th. So far, Musk has sold about 6.34 million Tesla Motors shares since November 8. Musk promised to sell 10% of Tesla Motors shares, that is, 17.05 million shares, so Musk has sold only 37.1% of his promise, and needs to sell at least 10.7 million shares of Tesla Motors shares. In addition, Musk hinted that he would sell more Tesla Motors shares; Michael Burry, a "big bear", tweeted that Musk only wanted to cash out at a high position.