Verkkothe fxaix fund invests at least 80% of its assets in stocks included in the s&p 500 index, aiming to closely track the index's performance. Verkkoboth swppx and fxaix offer investors an opportunity to gain exposure to the u. s. Which index fund will reign supreme? Learn the key differences between these popular funds and find out which one is best for your. Verkkofidelity 500 index fund (fxaix): 0. 01% schwab s&p 500 index (swppx): 0. 02% vanguard s&p 500 etf (voo): 0. 03% vanguard 500 index fund. Verkkowhat is difference between fxaix and swppx? Compare fundamental and technical ratings. Learn about the two and where you should. Verkkoin this article, we’ll look at two popular index funds: The fidelity 500 index fund (fxaix) and the schwab s&p 500 index fund (swppx).