$Tesla (TSLA.US)$ 's 28% share slump this year is attracting investors with hundreds of millions of dollars, wagering they could benefit from more wild swings in prices.
Yesterday, up until the last two seconds of trading, whales were spending millions, placing their bets. The biggest block trade was for short put options where the seller stands to collect a premium of $101.5 million for writing options that give the holder t...