The Telsa (TSLA) 2nd quarter 2018 were released after markets closed on August 1st and contained some good news. At 12:48 PM on August 7th 2018, CEO Elon Musk announced via Twitter, "Am considering taking Tesla private at $420. Funding secured." NASDAQ halted trading of TSLA later that afternoon. Over the following week, conflicting news reports indicated that a deal may not be so secure. Some suggested that his tweet might be classified somewhere between very optimistic and a bold-faced lie. The U.S. Securities and Exchange Commission appeared to agree with this suspicion as they sent subpoenas to Tesla on August 15th, 2018 regarding Elon Musk's plans to take the company private. The information above and the stock price graph below are most consistent with: Markets dominated by fear of loss Semi-strong form efficient markets CEO Musk thinks that TSLA short sellers are good Strong-form efficient markets Weak-form efficient markets