⚔️ Head-to-Head Overlap Analysis

SPY vs QQQ vs IWM Overlap & Concentration Screener

Comparing SPDR S&P 500 ETF Trust and Invesco QQQ Trust and iShares Russell 2000 ETF. Uncover shared underlying stock holdings, sector concentration, and whether holding these funds creates redundant portfolio drag.

⚖️ Select Your ETF Allocation (Up to 6)

Add ETFs and set your target weights. Real-time look-through calculates your true single-stock and sector exposure.

Allocation Total:
100%
Executive Summary (Equal Allocation)

Analyzing Portfolio Allocation...

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Analyzing look-through constituent overlap, fee drag, and single-stock concentration...

Top 5 Concentration --%
Top 10 Concentration --%
Unique Holdings --
Blended Fee --%
Largest Shared Holdings

🔄 Pairwise ETF Overlap & Redundancy Analysis

Calculating...

High overlap between two funds means you are paying multiple expense ratios for virtually the same underlying companies.

🔍 True Underlying Stock Exposure (Look-Through)

Your real aggregate ownership in single stocks after multiplying your ETF allocations by each fund's holdings.

Concentration Heatmap (Top Holdings)
High (>6%) Moderate (3%–6%) Diversified (<3%)
Detailed Holdings Breakdown
Stock / Company Effective Weight Contributing ETFs

📊 Sector Exposures vs Broad Market Benchmark (VTI)

Shows where your ETF combination is heavily overweight (concentrated tilt) or underweight compared to the total US stock market.

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Download Ideal Low-Overlap ETF Pairings & Model Portfolios (PDF)

Eliminate redundant holding drag and tech concentration. Get 5 benchmark portfolio allocations with Venn diagrams and constituent overlap scores.

  • ✓ Visual Venn diagrams comparing popular pairs (VOO vs VTI, QQQ vs VOO)
  • ✓ 5 proven model allocations (Reddit Trio, Bogleheads 3-Fund, Factor Barbell)
  • ✓ Exact step-by-step rebalancing guidelines and look-through weight rules

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❓ Common Questions

Frequently Asked Questions: SPY vs QQQ vs IWM

Answers on overlap redundancy, top holding duplication, and allocation tradeoffs between SPY and QQQ and IWM.

How much do SPY and QQQ and IWM overlap?

At equal allocations, SPY and QQQ and IWM exhibit an overall overlap and redundancy score of 18%. Your selected portfolio displays balanced sector weights and healthy underlying constituent dispersion.

What are the top overlapping stock holdings between SPY and QQQ and IWM?

The largest shared stock holdings across SPY and QQQ and IWM include Apple Inc. (5.3%), Microsoft Corporation (4.9%), NVIDIA Corporation (4.8%), Alphabet Inc. (3.1%), Amazon.com Inc. (3.0%), Meta Platforms Inc. Class A (2.5%), Broadcom Inc. (2.1%), Tesla Inc. (1.6%).

What is the combined top 5 stock concentration when holding SPY and QQQ and IWM?

Holding equal weights in SPY and QQQ and IWM results in 21.2% of your total capital concentrated in just 5 individual companies.

Your Next Step & Related Guides

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💬 Reader Discussion & Notes

Discussion 🟢 Open for Discussion

Between these funds, which allocation fits your portfolio plan best?

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