To activate your StockTrak.com account for your class, you must have your Class Name Code (you probably received a link from your professor), and a valid payment method. Valid payments are Visa, American Express, PayPal, and some books have certificates that will give you a free account. We no longer accept Mastercard. Please Paypal to process your payment with your Mastercard credit card. Once you have completed this registration process, your account will be opened, but you will not be allowed to trade until the trading period start date established by your professor.