TOPC vs. SPTM
TOPC (iShares S&P 500 3% Capped ETF) and SPTM (SPDR Portfolio S&P 1500 Composite Stock Market ETF) are both Large Cap Blend Equities funds - TOPC tracks the S&P 500 3% Capped Index while SPTM tracks the S&P Composite 1500 Index. Both are passively managed. Over the past year, TOPC returned 22.63% vs 22.37% for SPTM. With a 0.97 correlation, they move nearly in lockstep. TOPC charges 0.09%/yr vs 0.03%/yr for SPTM.
Performance
TOPC vs. SPTM - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, TOPC achieves a 11.31% return, which is significantly higher than SPTM's 9.90% return.
TOPC
- 1D
- 1.05%
- 1M
- 0.07%
- YTD
- 11.31%
- 6M
- 10.23%
- 1Y
- 22.63%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
SPTM
- 1D
- 1.33%
- 1M
- -1.34%
- YTD
- 9.90%
- 6M
- 8.89%
- 1Y
- 22.37%
- 3Y*
- 19.87%
- 5Y*
- 12.81%
- 10Y*
- 15.10%
TOPC vs. SPTM - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
TOPC iShares S&P 500 3% Capped ETF | 11.31% | 25.80% |
SPTM SPDR Portfolio S&P 1500 Composite Stock Market ETF | 9.90% | 27.52% |
Correlation
The correlation between TOPC and SPTM is 0.97 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.97 |
Correlation (All Time) Calculated using the full available price history since Apr 16, 2025 | 0.97 |
The correlation between TOPC and SPTM has been stable across timeframes, ranging from 0.97 to 0.97 - 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
TOPC vs. SPTM — Risk / Return Rank
TOPC
SPTM
TOPC vs. SPTM - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares S&P 500 3% Capped ETF (TOPC) and SPDR Portfolio S&P 1500 Composite Stock Market ETF (SPTM). 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.
| TOPC | SPTM | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.11 | ||
| Sortino ratioReturn per unit of downside risk | +0.13 | ||
| Omega ratioGain probability vs. loss probability | 1.34 | 1.33 | +0.02 |
| Calmar ratioReturn relative to maximum drawdown | 2.83 | 2.59 | +0.24 |
| Martin ratioReturn relative to average drawdown | 12.77 | 11.49 | +1.29 |
Loading charts...
Drawdowns
TOPC vs. SPTM - Drawdown Comparison
The maximum TOPC drawdown since its inception was -8.04%, smaller than the maximum SPTM drawdown of -54.80%. Use the drawdown chart below to compare losses from any high point for TOPC and SPTM.
Loading charts...
Drawdown Indicators
| TOPC | SPTM | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -8.04% | -54.80% | +46.76% |
Max Drawdown (1Y)Largest decline over 1 year | -8.04% | -8.68% | +0.64% |
Max Drawdown (3Y)Largest decline over 3 years | — | -18.87% | — |
Max Drawdown (5Y)Largest decline over 5 years | — | -24.14% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -34.66% | — |
Current DrawdownCurrent decline from peak | -0.63% | -1.74% | +1.11% |
Average DrawdownAverage peak-to-trough decline | -0.96% | -9.03% | +8.07% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.78% | 1.95% | -0.17% |
Volatility
TOPC vs. SPTM - Volatility Comparison
iShares S&P 500 3% Capped ETF (TOPC) and SPDR Portfolio S&P 1500 Composite Stock Market ETF (SPTM) have volatilities of 4.78% and 4.89%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| TOPC | SPTM | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.78% | 4.89% | -0.11% |
Volatility (6M)Calculated over the trailing 6-month period | 9.52% | 9.85% | -0.33% |
Volatility (1Y)Calculated over the trailing 1-year period | 11.95% | 12.51% | -0.56% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 12.54% | 16.97% | -4.43% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 12.54% | 18.02% | -5.48% |
TOPC vs. SPTM - Expense Ratio Comparison
TOPC has a 0.09% expense ratio, which is higher than SPTM's 0.03% 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
TOPC vs. SPTM - Dividend Comparison
TOPC's dividend yield for the trailing twelve months is around 1.04%, less than SPTM's 1.07% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
SPTM SPDR Portfolio S&P 1500 Composite Stock Market ETF | 1.07% | 1.13% | 1.28% | 1.44% | 1.69% | 1.25% | 1.56% | 1.72% | 1.90% | 1.66% | 1.91% | 1.92% |
TOPC iShares S&P 500 3% Capped ETF | 1.04% | 0.80% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
With a correlation of 0.97, TOPC and SPTM move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.
SPTM has higher volatility (4.89%) compared to TOPC (4.78%). In terms of maximum drawdown, TOPC dropped -8.04% vs SPTM's -54.80%.
On 1-year performance, TOPC leads with 22.63% vs 22.37% for SPTM. On fees, SPTM is cheaper at 0.03% per year. On volatility, TOPC has been the lower-risk option at 4.78%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 1-year period, TOPC has performed better with a 22.63% return vs 22.37%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
SPTM is cheaper with a 0.03% expense ratio, compared with 0.09% for TOPC.
SPTM has the higher dividend yield at 1.07%, compared with 1.04% for TOPC.
TOPC tracks S&P 500 3% Capped Index, while SPTM tracks S&P Composite 1500 Index. They also come from different issuers: iShares and State Street. Their fees differ too: 0.09% for TOPC and 0.03% for SPTM.
TOPC currently has the higher Sharpe Ratio (1.91 vs 1.80), 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 TOPC and SPTM
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