Fidelity Investments 500 Index Fund (FXIAX) is one of the simplest and cheapest ways to invest in the U.S. stock market.
It is often compared with Vanguardβs S&P 500 funds because it tracks the same index.
π§ What is FXIAX?
FXIAX is an index mutual fund that follows the S&P 500, which includes about 500 of the largest companies in the United States.
π In simple words:
FXIAX = owning a small piece of the biggest U.S. companies in one fund
π¦ What it invests in
FXIAX includes top American companies like:
Apple π
Microsoft π»
Amazon π¦
Google (Alphabet) π
Nvidia β‘
It represents the core of the U.S. economy.
π‘ Key Features
π° Expense ratio: ~0.015% (extremely low)
π Minimum investment: $0 (very beginner-friendly)
π’ Type: Index mutual fund
π¦ Holdings: ~500 companies
π Strategy: Passive (tracks the market)
π Why investors like FXIAX
β One of the lowest-cost funds in the world
β No minimum investment required
β Very easy for beginners
β Strong long-term performance history
β Perfect βbuy and hold foreverβ fund
β οΈ Risks
π Depends fully on U.S. stock market
π No international exposure
β‘ Can drop during recessions
π Focused only on large companies
π FXIAX vs VFIAX
FXIAX β Fidelity version (no minimum, ultra-low fees)
Vanguard VFIAX β Vanguard version ($3,000 minimum)
π Both track the same S&P 500, so performance is almost identical.
π Simple Portfolio Idea
Many investors use FXIAX as:
Core U.S. investment
Long-term retirement fund
Foundation of a diversified portfolio
Example mix:
70% FXIAX (U.S. stocks)
30% international fund (like VTIAX)
π‘ Final Thoughts
FXIAX is:
Simple π‘
Extremely low-cost π°
Strong for long-term growth π
βIt quietly grows with the U.S. economy over time.β