VGT vs SPY Overlap AnalysisOverlap
Comparing Vanguard Information Technology ETF and SPDR S&P 500 ETF Trust
Visual Overlap
Price Performance
Historical price comparison over 3M
๐Performance Comparison
โ ๏ธRisk Metrics
Interpretation:
- ๐ Lower volatility = smoother ride
- โก Higher Sharpe/Sortino = better risk-adjusted returns
- โ ๏ธ Smaller max drawdown = less worst-case pain
- ๐ Beta > 1 = more volatile than S&P 500
โ๏ธHead-to-Head Comparison
๐ SPY wins this comparison
Key Factors
โถAdditional Metrics (5)
Bottom line: SPY wins with better expense ratio and number of holdings. Consider SPY for your portfolio, but VGT is still a solid choice if you prefer its specific advantages.
Detailed Overlap Analysis
10 shared holdings representing 26.1% portfolio overlap
Top Shared Holdings
| # | Stock | VGT Weight | SPY Weight | Overlap |
|---|---|---|---|---|
| 1 | NVDA NVIDIA Corp | 15.45% | 7.73% | 7.73% |
| 2 | AAPL Apple Inc | 20.85% | 6.82% | 6.82% |
| 3 | MSFT Microsoft Corp | 19.65% | 6.11% | 6.11% |
| 4 | AVGO Broadcom Inc | 4.75% | 2.79% | 2.79% |
| 5 | AMD Advanced Micro Devices | 2.85% | 0.59% | 0.59% |
| 6 | ORCL Oracle Corp | 2.75% | 0.56% | 0.56% |
| 7 | CSCO Cisco Systems | 2.35% | 0.52% | 0.52% |
| 8 | CRM Salesforce Inc | 3.15% | 0.43% | 0.43% |
| 9 | ACN Accenture PLC | 2.15% | 0.28% | 0.28% |
| 10 | ADBE Adobe Inc | 2.55% | 0.25% | 0.25% |
Overlap by Sector
Showing top 5 sectors by overlap contribution
Top Holdings Only in SPY
Unique to SPY
| Symbol | Name | Weight |
|---|---|---|
| AMZN | AMZN | 3.81% |
| GOOGL | GOOGL | 3.08% |
| GOOG | GOOG | 2.47% |
| META | META | 2.45% |
| TSLA | TSLA | 2.30% |
Price Correlation
How We Calculate Overlap
We use the minimum weight method with normalization to calculate portfolio overlap:
Overlap = ฮฃ min(weightA, weightB) for each shared holdingNormalization: Holdings weights are normalized to sum to 100% before comparison. This ensures accurate overlap calculations even when analyzing partial holdings data (e.g., top 50 positions).
Conservative approach: We consider only the smaller allocation for each shared position, giving you a realistic view of true portfolio overlap.
๐ This analysis is based on publicly available holdings data. For the most current and complete holdings information, please visit the official ETF provider websites.