>Go to your bank and ask to borrow $400K "because you think google's shares will go up". They will say no. You could buy call options, which include a leverage

>Go to your bank and ask to borrow $400K "because you think google's shares will go up". They will say no. You could buy call options, which include a leverage component. An at-the-money 1 year call option (LEAPs) is a huge leveraged bet that the price will spike. If you are wrong, buy another at-the-money option in a year. But you must be prepared to lose 100% if you are wrong. (Like like you would have lost 100% if you were leveraged to the max on housing in 2008.)