What are the three major stock Indices? The major stock Indices are the S&P 500 (US 500), the DJ30 (US 30)and NASDAQ 100 (US TECH100). Related articles How do i update my phone number? How long does it take to receive my withdraw funds? How do I upload documents into My Account? How do I show the Marketwatch and add Instruments? Does AvaTrade offer any indices that are not stock-based?