Tesla stock rose in premarket trading on Wednesday, signaling the possibility of it adding to its six-session winning streak. On Tuesday, the stock tacked on 10.20% by the close and settled at $231.26, marking the highest level since Jan. 10. The upside came after the electric vehicle maker reported second-quarter deliveries that exceeded the lowered consensus forecasts. While a section of analysts expressed apprehension regarding the second straight quarterly sales drop, bulls on the Street said sales could have bottomed, positioning the company on track for a second-half rebound.