I think it's time to short Tesla again, but I am not sure how to manage my exposure.
Say I want to invest $1,000.
I could sell 20 shares at $ 500 each. If they rise by 100% which they might do, I will lose my $1,000. If the share price falls to $200, I will earn $600.
Or I could sell 40 shares at $500 each, but if they rise by 50% , I will lose my $1,000. If the share price falls to $200 I will earn $1,200
I am not sure which to do.
I am facing a similar issue with Bitcoin at the moment. You can back it at 12/1 to being below $1,000 at the end of 2020.
The Betfair Exchange allows you the opportunity to back and lay bets and Cash Out. We also offer Casino, Poker, Games and Bingo.
www.betfair.com
Bitcoin will fall to zero at some stage. I am astonished it has not done so by now. So if I bet $1,000 now for the end of the year, I might well lose it. But if I lose it, I will probably get good odds again this time next year.
Maybe place a small bet on Tesla which I can afford to lose completely. And if I do lose it, put on another similar bet.
If someone offered me 11/10 on a coin toss, I would not place my entire wealth on it despite having a positive EV.
But if I knew that the bookie would remain open, I would happily wager a series of €1,000 bets.
I am in the money on Bitcoin already, having shorted it at $14,300 two years ago.
I had to cash my Tesla position to pay my income tax in November. I was very lucky that I did, as I would be down now.
Some poker players take their initial stake off the table and play just with their winnings. But I never agreed with this strategy in poker, so I don't see why it should apply to investing either.
Brendan