Complete ETF Analysis Platform
Compare holdings overlap, analyze price correlations, explore sector exposure, and discover the best-ranked ETFs. Your complete toolkit for smarter ETF investing.
Supporting 84+ ETFs across all major categories
Popular Comparisons
🔍 Popular Comparisons
Quick access to the most searched ETF comparisons. Deep analysis of overlap, correlation, performance, and key differences.
🔍 Hidden Correlation Finder
Build a truly diversified portfolio by discovering which ETFs move together (and which don't). See the correlation matrix heatmap and get your portfolio diversification score.
- ✓Interactive correlation matrix with color-coded heatmap
- ✓Diversification score (0-100) for your portfolio
- ✓Smart recommendations to improve diversification
💰 Expense Ratio Calculator
That "tiny" 0.09% fee? It could steal $45,000+ from your retirement. See the REAL cost of expense ratios over time.
- ⚠️Compare any two ETFs side-by-side
- 💸See total fees paid over 10, 20, 30+ years
- 📈Includes monthly contributions and compounding
🎯 Sector Exposure X-Ray
Think your portfolio is diversified? You might have 60% in tech without realizing it. See your true sector exposure across all ETFs.
💎 Dividend Overlap Optimizer
Holding SCHD + VYM + DVY? You're paying 3 expense ratios for the same dividend aristocrats. Find your hidden overlaps.
- 💰Calculate combined portfolio yield
- 🔍Discover overlapping dividend stocks
- 👑Identify dividend aristocrats (25+ years)
Holdings Overlap
See which stocks are shared between ETFs and their weight contribution
70+ ETFs Supported
Compare across US equities, international, bonds, sectors, crypto and more
Lightning Fast
Pre-generated pages load instantly with all calculations ready
Latest from Our Blog
SPY vs VOO: The Complete 2025 Comparison Guide
SPY and VOO both track the S&P 500, but which is better? Compare expense ratios, tax efficiency, and performance. See why 95% of investors should choose VOO.
Read Full Guide (12 min) →Key Takeaways:
- ✓99.8% overlap - virtually identical holdings
- ✓VOO saves $60/year per $100K (0.03% vs 0.09% fee)
- ✓VOO is more tax efficient (zero capital gains)
- ✓SPY better for options trading & day traders
Popular ETF Categories
Methodology
Overlap Calculation
We calculate weighted intersection using the minimum weight method:
overlap% = Σ min(weight_A, weight_B) for each shared holdingThis represents the true portfolio overlap considering position sizes.
Correlation Analysis
Pearson correlation coefficient on adjusted daily close prices over a 30-day rolling window. Correlation ranges from -1 (inverse) to +1 (perfect positive correlation). Uses 5 years of historical data.
Data Sources
- Holdings: Curated from public issuer files (iShares, Vanguard, SPDR)
- Prices: Yahoo Finance API (5 years, adjusted close)
- Update frequency: Weekly for MVP, daily post-launch
Disclaimer: This tool provides educational information only. Holdings data may be outdated. Not financial or investment advice.