AGG vs BND Overlap AnalysisOverlap
Comparing iShares Core U.S. Aggregate Bond ETF and Vanguard Total Bond Market ETF
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 BND wins this comparison
Key Factors
โถAdditional Metrics (5)
Bottom line: BND wins with better number of holdings. Both have the same expense ratio, so cost isn't a differentiator. Consider BND for your portfolio, but AGG is still a solid choice if you prefer its specific advantages.
Detailed Overlap Analysis
10 shared holdings representing 99.4% portfolio overlap
Top Shared Holdings
| # | Stock | AGG Weight | BND Weight | Overlap |
|---|---|---|---|---|
| 1 | UST-10Y US Treasury 10Y | 3.85% | 3.95% | 3.85% |
| 2 | UST-5Y US Treasury 5Y | 3.25% | 3.35% | 3.25% |
| 3 | UST-2Y US Treasury 2Y | 2.85% | 2.95% | 2.85% |
| 4 | GNMA-30Y GNMA 30Y MBS | 2.45% | 2.55% | 2.45% |
| 5 | FNMA-30Y FNMA 30Y MBS | 2.25% | 2.35% | 2.25% |
| 6 | UST-7Y US Treasury 7Y | 2.05% | 2.15% | 2.05% |
| 7 | CORP-AAA Corporate AAA Bonds | 1.85% | 1.95% | 1.85% |
| 8 | FHLMC-30Y Freddie Mac 30Y MBS | 1.65% | 1.75% | 1.65% |
| 9 | UST-3Y US Treasury 3Y | 1.55% | 1.65% | 1.55% |
| 10 | CORP-AA Corporate AA Bonds | 1.45% | 1.55% | 1.45% |
Overlap by Sector
Showing top 5 sectors by overlap contribution
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.