NTSI vs. SPY
NTSI (WisdomTree International Efficient Core Fund) and SPY (State Street SPDR S&P 500 ETF) are both exchange-traded funds - NTSI is a Global Allocation fund actively managed by WisdomTree, while SPY is a S&P 500 fund tracking the S&P 500 Index. NTSI is actively managed, while SPY is passively managed. Over the past 5 years, NTSI returned 5.58%/yr vs 13.05%/yr for SPY. A 0.72 correlation means they provide meaningful diversification when combined. NTSI charges 0.26%/yr vs 0.09%/yr for SPY.
Performance
NTSI vs. SPY - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, NTSI achieves a 6.38% return, which is significantly lower than SPY's 8.15% return.
NTSI
- 1D
- -1.50%
- 1M
- 0.19%
- YTD
- 6.38%
- 6M
- 6.48%
- 1Y
- 20.27%
- 3Y*
- 14.18%
- 5Y*
- 5.58%
- 10Y*
- —
SPY
- 1D
- -1.45%
- 1M
- -1.36%
- YTD
- 8.15%
- 6M
- 7.20%
- 1Y
- 23.59%
- 3Y*
- 20.68%
- 5Y*
- 13.05%
- 10Y*
- 15.53%
NTSI vs. SPY - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | |
|---|---|---|---|---|---|---|
NTSI WisdomTree International Efficient Core Fund | 6.38% | 30.37% | 1.11% | 15.42% | -19.27% | 2.05% |
SPY State Street SPDR S&P 500 ETF | 8.15% | 17.72% | 24.89% | 26.18% | -18.18% | 16.76% |
Correlation
The correlation between NTSI and SPY is 0.72, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.72 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.69 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.72 |
Correlation (All Time) Calculated using the full available price history since May 20, 2021 | 0.72 |
The correlation between NTSI and SPY has been stable across timeframes, ranging from 0.69 to 0.72 - a consistent structural relationship.
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
NTSI vs. SPY — Risk / Return Rank
NTSI
SPY
NTSI vs. SPY - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for WisdomTree International Efficient Core Fund (NTSI) and State Street SPDR S&P 500 ETF (SPY). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| NTSI | SPY | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.59 | ||
| Sortino ratioReturn per unit of downside risk | -0.72 | ||
| Omega ratioGain probability vs. loss probability | 1.23 | 1.34 | -0.11 |
| Calmar ratioReturn relative to maximum drawdown | 1.65 | 2.67 | -1.02 |
| Martin ratioReturn relative to average drawdown | 5.95 | 11.92 | -5.97 |
Loading charts...
Drawdowns
NTSI vs. SPY - Drawdown Comparison
The maximum NTSI drawdown since its inception was -34.01%, smaller than the maximum SPY drawdown of -55.19%. Use the drawdown chart below to compare losses from any high point for NTSI and SPY.
Loading charts...
Drawdown Indicators
| NTSI | SPY | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -34.01% | -55.19% | +21.18% |
Max Drawdown (1Y)Largest decline over 1 year | -12.33% | -8.88% | -3.45% |
Max Drawdown (3Y)Largest decline over 3 years | -13.69% | -18.76% | +5.07% |
Max Drawdown (5Y)Largest decline over 5 years | -34.01% | -24.50% | -9.51% |
Max Drawdown (10Y)Largest decline over 10 years | — | -33.72% | — |
Current DrawdownCurrent decline from peak | -3.10% | -3.17% | +0.07% |
Average DrawdownAverage peak-to-trough decline | -9.11% | -9.04% | -0.07% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.42% | 1.98% | +1.44% |
Volatility
NTSI vs. SPY - Volatility Comparison
WisdomTree International Efficient Core Fund (NTSI) has a higher volatility of 5.19% compared to State Street SPDR S&P 500 ETF (SPY) at 4.87%. This indicates that NTSI's price experiences larger fluctuations and is considered to be riskier than SPY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| NTSI | SPY | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.19% | 4.87% | +0.32% |
Volatility (6M)Calculated over the trailing 6-month period | 13.28% | 9.85% | +3.43% |
Volatility (1Y)Calculated over the trailing 1-year period | 15.51% | 12.50% | +3.01% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 15.80% | 17.15% | -1.35% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 15.69% | 17.95% | -2.26% |
NTSI vs. SPY - Expense Ratio Comparison
NTSI has a 0.26% expense ratio, which is higher than SPY's 0.09% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Dividends
NTSI vs. SPY - Dividend Comparison
NTSI's dividend yield for the trailing twelve months is around 3.53%, more than SPY's 1.03% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
NTSI WisdomTree International Efficient Core Fund | 3.53% | 3.65% | 2.92% | 2.35% | 2.66% | 0.97% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
SPY State Street SPDR S&P 500 ETF | 1.03% | 1.07% | 1.21% | 1.40% | 1.65% | 1.20% | 1.52% | 1.75% | 2.04% | 1.80% | 2.03% | 2.06% |
Frequently Asked Questions
NTSI and SPY have a correlation of 0.72, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
NTSI has higher volatility (5.19%) compared to SPY (4.87%). In terms of maximum drawdown, NTSI dropped -34.01% vs SPY's -55.19%.
On 5-year performance, SPY leads with 13.05% vs 5.58% for NTSI. On fees, SPY is cheaper at 0.09% per year. On volatility, SPY has been the lower-risk option at 4.87%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 5-year period, SPY has performed better with a 13.05% return vs 5.58%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
SPY is cheaper with a 0.09% expense ratio, compared with 0.26% for NTSI.
NTSI has the higher dividend yield at 3.53%, compared with 1.03% for SPY.
NTSI is categorized as Global Allocation, while SPY is S&P 500. They also come from different issuers: WisdomTree and State Street. Their fees differ too: 0.26% for NTSI and 0.09% for SPY.
SPY currently has the higher Sharpe Ratio (1.90 vs 1.31), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
Find the right allocation for NTSI and SPY
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer