Tesla Inc. shares rebounded as much as 4% in midday New-York trading on Friday, paring a portion of the 9% slide recorded the previous session. Options data pointed to an abrupt shift in sentiment. Roughly 4,000 August 8 $310 put contracts were sold early in the session, while about 1,500 May $610 call contracts changed hands at premiums between $12.40 and $12.90. The combination of put-selling and call-buying signaled traders were positioning for a recovery in the stock. Market watchers described the flow as unusually bullish and noted that short-term sentiment indicators moved from “extremely bearish” to neutral within a day, underscoring the speed of the turnaround.