What?!!! Just so I get this straight. In order to short the stock you have to pay an annual interest rate of 46% of the stock value? I realize most shorts are probably only in it for short term, but that is still pretty insane.
Brokers do charge interest rates and the rates for TESLA really were 45% (current) and 85% (once upon a time) annualized, mostly because of a deficiency in available shares. At that point it was costing 60c per share a week just to keep your short position.
Theres plenty of discussion here: http://www.teslamotorsclub.com/showthread.php/15183-Cost-to-...
I was thinking of this: http://www.investopedia.com/terms/s/shortinterest.asp
You can see the short interest in TSLA here published twice a month: http://www.nasdaq.com/symbol/tsla/short-interest which is very high compared to AAPL's short interest: http://www.nasdaq.com/symbol/aapl/short-interest which hovers around one day to cover.
http://finance.yahoo.com/q/op?s=TSLA+Options
...the implication is that unhedged longs are carrying the real risk.
A straddle involves buying both a call and a put. If a stock is trading at 10, and you buy a PUT at 8 and a call at 12, you make money if the stock goes above 12 or below 8, between that, you eat the option price. Basically a straddle is betting on volatility.
You can also sell a straddle, sell a put and sell a call, and bet that stock will remain at the same price.
I can somewhat relate to why one would take this strategy, as Tesla is getting a lot of hype, implying that the stock might break out (or already did, currently at $71), but they are also in a fairly precarious financial situation, with a ton of debt. Elon himself warned that if the company didn't get to positive cash flow it was likely they would go under. Still it seems like a high price to pay for a hedge, wouldn't it be simpler (and possibly cheaper) just to reduce your long position?