SPY vs QQQ

S&P 500 vs NASDAQ-100

Broad market vs technology focus

VTI vs VXUS

US vs International

Domestic vs global diversification

ARKK vs SPY

Active vs Passive

Innovation focus vs broad market

VTV vs VUG

Value vs Growth

Conservative vs aggressive growth

XLK vs XLF

Technology vs Financials

Growth vs cyclical sectors

EFA vs EEM

Developed vs Emerging

Stable vs high-growth markets

BND vs TLT

Total Bond vs Long Treasury

Diversified vs duration risk

SCHD vs DVY

Dividend vs High Yield

Quality vs yield focus

IWM vs VB

Russell 2000 vs Small Cap

Index methodology differences

VNQ vs SCHH

REIT vs Real Estate

Traditional vs diversified REITs