Interactive Portfolio Diagnostic

ETF X-Ray & Holdings Overlap Analyzer

Look beneath the ticker symbol. Deconstruct your index funds down to their underlying stock holdings, detect accidental duplication (such as holding S&P 500 alongside All-Equity ETFs), and measure your true fee drag, geographic exposure, and single-stock concentration.

100% Client-Side Portfolio Diagnostics & Complete Privacy

Your investments and account balances never leave your browser. Matrix comparisons, geographic aggregation, and holding overlap calculations execute 100% locally on your machine with zero server tracking.

Quick Test Portfolios & Common Allocation Scenarios:

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Looking for ETF deep dive fundamentals?

Review our step-by-step methodology for evaluating index fund tracking error, bid-ask spreads, and securities lending.

Read ETF Deep Dive Guide
0% Portfolio Overlap
0.00% Blended MER Drag
0 Unique Securities
β€” Top Region

Pairwise ETF Holdings Overlap Matrix

Measures exact common stock holdings shared between any two ETFs in your portfolio. Click any cell to inspect details in the Venn visualizer.

Geographic Asset Distribution

True look-through currency and regional allocation weighted across all held funds.

Sector Exposure Breakdown

Aggregated exposure across major economic sectors.

Top Look-Through Underlying Holdings

The largest single-stock exposures in your combined portfolio, accounting for all ETF overlaps.

Track drift and quarterly rebalancing with Pro

Keep your asset mix aligned without triggering unnecessary taxable capital gains using our automated Smart Rebalancing Drift Monitor ($9.99 USD/mo).

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Educational information and diagnostic illustration only. Basic Investor does not provide individualized investment, legal, accounting, or tax advice. Holdings data reflect sample public index benchmarks and may differ slightly from daily fund manager creation baskets.