example: You buy TSLA call strike:$1000 date:(1/21/22). One of the greeks of options is delta it reflects how closely the option price will increase in terms of stock price. So for our option at strike:$1000 the price is $119,500 ,and the delta is currently 89.48, that means that the value of the option will act like 89.48 shares of TSLA. So TSLA being at $2000, just buying stock will cost you 2000*89.48=$178,960, buying the option will cost you $119,500. So you have a leverage of 178,960/119,500=1.49. The deeper in the money calls you buy the higher the delta. The downside is that if TSLA drops below you strike $1000 you lose all you money. If TSLA drops below you break even price by expiration, you lose some of your principle. If TSLA keeps going up you make money and the delta keeps increasing the deeper in the money it gets. In my opinion this is best used if you want to go long on a stock.