Expense Ratio History

FXAIX vs VFIAX: fees

Fidelity 500 Index Fund and Vanguard 500 Index Fund Admiral Shares both track the S&P 500. FXAIX is cheaper, at 0.015% against 0.04% for VFIAX.

FXAIX

Fidelity 500 Index Fund

0.015%

Yearly cost per $10,000
$1.50
Fund company
Fidelity
Type
Index mutual fund
Read on
19 October 2026
Last change
0.03% to 0.01%, 29 Apr 2016

VFIAX

Vanguard 500 Index Fund Admiral Shares

0.04%

Yearly cost per $10,000
$4
Fund company
Vanguard
Type
Index mutual fund
Read on
19 October 2026
Last change
0.14% to 0.04%, 29 Apr 2022

What the difference costs

On $10,000 held for 10 years at a steady 5% return, VFIAX's fee costs about $51 and FXAIX's about $19, a difference of $32. The gap is 2.5 basis points a year, or $2.50 a year on every $10,000.

Fees are one fact among many. The two funds may differ in structure, minimums, tax treatment and tracking, and this site doesn't compare any of that. Each fund's page has its fee history and sources.

Fee history

FXAIX
FXAIX expense ratio: 0.03% until 29 Apr 2016, then 0.01%; read at 0.015% on 19 Oct 2026.0.00%0.01%0.02%0.03%0.04%Apr 2011Dec 2013Aug 2016Apr 2019Dec 2021Aug 20240.03% before0.01% from 29 Apr 2016
FXAIX expense ratio: 0.03% until 29 Apr 2016, then 0.01%; read at 0.015% on 19 Oct 2026.0.00%0.01%0.02%0.03%0.04%Apr 2011Jul 2016Oct 20210.03% before0.01% from 29 Apr 2016
VFIAX
VFIAX expense ratio: 0.04% until 29 Apr 2021, then 0.14%; 0.14% until 29 Apr 2022, then 0.04%; read at 0.04% on 19 Oct 2026.0.00%0.05%0.10%0.15%0.20%Apr 2017Dec 2018Aug 2020Apr 2022Dec 2023Aug 20250.04% before0.04% from 29 Apr 2022
VFIAX expense ratio: 0.04% until 29 Apr 2021, then 0.14%; 0.14% until 29 Apr 2022, then 0.04%; read at 0.04% on 19 Oct 2026.0.00%0.05%0.10%0.15%0.20%Apr 2017Jul 2020Oct 20230.04% before0.04% from 29 Apr 2022

All S&P 500 index funds we track

Compare them all