VOO vs IWM Overlap

Comparing Vanguard S&P 500 ETF and iShares Russell 2000 ETF

Holdings Overlap
0.00%
Very Low Overlap
Shared Holdings
0 of 462
Complete portfolio analysis
Calculation Method
Min Weight
Weighted intersection

Visual Overlap

VOO
IWM
0.0%
VOO Only
Overlap
IWM Only

Price Performance

Historical price comparison over 3M

VOO Return
+8.55%
IWM Return
+12.41%
Winner
IWM
+3.86%
Max Drawdown
VOO: -5.1%
IWM: -8.5%
VOO Volatility (annualized)11.37%
IWM Volatility (annualized)19.30%

📈 Comparison

Metric
VOO
IWM
1 Year Return
+26.5%
+18.5%
3 Year Return
+10.2%
+4.2%
5 Year Return
+15.8%
+10.5%
Volatility
18.20%
24.80%
Expense Ratio
0.03%
0.19%
⚠️ Past performance does not guarantee future results. Data may be delayed.

⚠️Risk Metrics

Metric
VOO
IWM
Volatility
18.20%
24.80%
Sharpe Ratio
0.82
0.38
Sortino Ratio
1.15
0.52
Max Drawdown
-33.80%
-41.50%
Beta
1.00
1.25

Interpretation:

  • 📊 Lower volatility = smoother ride
  • ⚡ Higher Sharpe/Sortino = better risk-adjusted returns
  • ⚠️ Smaller max drawdown = less worst-case pain
  • 📈 Beta > 1 = more volatile than S&P 500

⚔️ Comparison

10 - 8

🏆 VOO wins this comparison

Key Factors

💰 Expense Ratio
VOO:0.03%
vs
IWM:0.19%
🎯 Number of Holdings
VOO:503 holdings
vs
IWM:1,983 holdings
📈 5-Year Return
VOO:+15.8%
vs
IWM:+10.5%
Additional Metrics (5)
⚖️ Concentration Risk
VOO: 39.6% in top 10
IWM: 5.3% in top 10
📊 Assets Under Management
VOO: $380B ✓
IWM: $60B ✓
Sharpe Ratio
VOO: 0.82
IWM: 0.38
📉 Volatility
VOO: 18.2%
IWM: 24.8%
🔍 Uniqueness vs SPY
VOO: 18.4% unique
IWM: 100.0% unique

Bottom line: VOO wins with better expense ratio and 5-year return. Consider VOO for your portfolio, but IWM is still a solid choice if you prefer its specific advantages.

Detailed Overlap Analysis

0 shared holdings representing 0.0% portfolio overlap

Top Shared Holdings

#StockVOO WeightIWM WeightOverlap
0
Shared Stocks
0.0%
Total Overlap
0
Sectors Represented

Top Holdings Only in VOO

Unique to VOO

Scroll horizontally to see all data
SymbolNameWeight
NVDANVDA7.37%
AAPLAAPL7.07%
MSFTMSFT6.24%
AMZNAMZN3.86%
AVGOAVGO3.24%

Top Holdings Only in IWM

Unique to IWM

Scroll horizontally to see all data
SymbolNameWeight
CRDOCREDO TECHNOLOGY GROUP HOLDING LTD0.86%
BEBLOOM ENERGY CLASS A CORP0.80%
FNFABRINET0.62%
IONQIONQ INC0.51%
NXTNEXTPOWER INC CLASS A0.44%

Price Correlation

How We Calculate Overlap

We use the minimum weight method with normalization to calculate portfolio overlap:

Overlap = Σ min(weightA, weightB) for each shared holding

Normalization: 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.

📊 This analysis is based on publicly available holdings data. For the most current and complete holdings information, please visit the official ETF provider websites.

Compare More ETFs