Investing

ETF Investing

How ETFs work, what expense ratios actually cost you, index vs active funds, and how to build a diversified portfolio with as few as three ETFs.

ETF Explorer

Research any US-listed ETF: expense ratio, top holdings, sector allocation, and live price.

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Research Popular ETFs

SPY

S&P 500 — the most-traded ETF

VOO

Vanguard S&P 500 — low 0.03% expense ratio

QQQ

Nasdaq-100 — tech-heavy growth

VTI

Total US market in one fund

SCHD

Dividend-focused, strong track record

GLD

Gold exposure via ETF

ETF Guides & Analysis

Mega IPOs: What Index Fund Investors Need to Know

SpaceX, OpenAI, and Anthropic are heading toward IPOs. Here's what the data says about IPO returns — and what it means for your index fund portfolio.

SpaceX IPO: Index Funds, Retail Access & What Investors Face

SpaceX IPO is reshaping index fund rules and retail investing. Here's exactly which indices will own it, when, and what the data says about retail IPO returns.

For informational purposes only — not financial advice. ETF data sourced from FinanceDatabase, Finnhub, and Financial Modeling Prep. Always verify with the fund provider before investing. Editorial policy →