“Mr. Burnworth, a civil engineer in Incline Village, Nev., who is nearing retirement age, is using all of those strategies after turning a roughly $23,000 options gamble on Tesla last year into a nearly $2 million windfall. His growing Tesla stake had enabled him to borrow against his position to convert Tesla options into shares that have soared sevenfold this year. He says he also helped his daughter buy a home and purchased a Tesla sport-utility vehicle for another family member”.