$特斯拉 (TSLA.US)$ attracted almost $190 million in short call positions at a time when the stock is soaring to its highest level since January.
Shares of the electric vehicle maker jumped 9% to $228.83 Tuesday after Tesla reported second quarter deliveries that beat analysts' estimates. Wedbush analyst Daniel Ives said the results represented "a huge comeback performance" for the company that's widely expected to miss...