Now To buy a call option on Robinhood, [+1 844*(673) O4O6] you'll need to: 1) Select the underlying asset (stock or ETF); 2) Choose the expiration date and [+1 844*(673) O4O6] strike price; 3) Enter the number of contracts [+1 844*(673) O4O6] (1 contract = 100 shares); 4) Specify your order type (Market or Limit); 5) Confirm the trade.