$100 mutual funds

$100 Mutual Funds: Smart Investing on a Budget

After helping hundreds of new investors get started, I’ve found that $100 can be the perfect amount to begin building wealth through mutual funds. Here’s exactly how to make that Benjamin work harder for you.

Best Mutual Funds You Can Start With $100

Top Low-Minimum Options

Fund NameTickerMinimumExpense Ratio10-Yr Return
Fidelity ZERO Large Cap IndexFNILX$00.00%12.1%
Schwab S&P 500 IndexSWPPX$00.02%12.3%
Vanguard STAR FundVGSTX$1,0000.31%8.9%
T. Rowe Price Price Mid-Cap GrowthRPMGX$1000.70%14.2%

Data as of June 2024

The Math Behind $100 Investments

Compound Growth Potential

FV = P \times (1 + \frac{r}{n})^{n \times t}

Example: Investing $100 monthly at 7% return for 30 years:

FV = 100 \times \frac{(1 + 0.07/12)^{360} - 1}{0.07/12} \approx \$113,353

Fee Impact on Small Investments

Cost = Investment \times (1 - (1 - fee)^t)

A 1% fee on $100 over 30 years costs you:

100 \times (1 - (1 - 0.01)^{30}) = \$26

Where to Buy $100 Mutual Funds

  1. Direct from Fund Companies
  • Fidelity, Schwab, and Vanguard offer $0 minimums on select funds
  • Automatic investment plans available
  1. Robo-Advisors
  • Betterment: $10 minimum
  • Wealthfront: $500 minimum
  1. Employer Retirement Plans
  • Many 401(k)s allow $100+ investments regardless of fund minimums

Smart Strategies for Small Investments

1. Focus on Index Funds

  • Lower minimums than active funds
  • Example: SWPPX tracks S&P 500 for $1 minimum

2. Use Fractional Shares

  • Some platforms allow partial shares
  • Lets you diversify $100 across multiple funds

3. Set Up Automatic Investing

  • Turn $100 into $25 weekly investments
  • Dollar-cost averaging reduces volatility impact

What to Avoid With Small Investments

  1. Load Funds (Sales charges can eat 3-5% upfront)
  2. High Expense Ratios (>0.50% hurts compounding)
  3. Sector Funds (Too concentrated for small amounts)

Growth Projections

Monthly Investment10 Years (7%)30 Years (7%)
$100$17,308$113,353
$200$34,616$226,706
$500$86,540$566,765

Assumes reinvested dividends

Next Steps for New Investors

  1. Open a brokerage account with no minimums
  2. Select one diversified index fund
  3. Set up automatic transfers
  4. Increase contributions with raises

Would you like me to suggest specific fund combinations based on your $100 investment and risk tolerance? I can help create a personalized starter portfolio.

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