SMAX vs. DMAX

Last updated Apr 1, 2026

Compare and contrast key facts about iShares Large Cap Max Buffer Sep ETF (SMAX) and iShares Large Cap Max Buffer December ETF (DMAX).

SMAX and DMAX are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. SMAX is an actively managed fund by iShares. It was launched on Sep 30, 2024. DMAX is a passively managed fund by iShares that tracks the performance of the S&P 500 Index. It was launched on Dec 31, 2024.

Performance

SMAX vs. DMAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Large Cap Max Buffer Sep ETF (SMAX) and iShares Large Cap Max Buffer December ETF (DMAX). The values are adjusted to include any dividend payments, if applicable.

SMAX vs. DMAX - Yearly Performance Comparison

	2026 (YTD)	2025
SMAX iShares Large Cap Max Buffer Sep ETF	-0.49%	7.88%
DMAX iShares Large Cap Max Buffer December ETF	-0.37%	7.81%

Returns By Period

In the year-to-date period, SMAX achieves a -0.49% return, which is significantly lower than DMAX's -0.37% return.

SMAX

• 1D: 0.72%
• 1M: -1.17%
• YTD: -0.49%
• 6M: 1.14%
• 1Y: 8.16%
• 3Y*: —
• 5Y*: —
• 10Y*: —

DMAX

• 1D: 0.40%
• 1M: -0.84%
• YTD: -0.37%
• 6M: 1.76%
• 1Y: 7.76%
• 3Y*: —
• 5Y*: —
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

SMAX vs. DMAX - Expense Ratio Comparison

Both SMAX and DMAX have an expense ratio of 0.50%.

SMAX

iShares Large Cap Max Buffer Sep ETF

DMAX

iShares Large Cap Max Buffer December ETF

Return for Risk

SMAX vs. DMAX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

SMAX

SMAX Risk / Return Rank: 95
SMAX Sharpe Ratio Rank: 92
SMAX Sortino Ratio Rank: 96
SMAX Omega Ratio Rank: 96
SMAX Calmar Ratio Rank: 94
SMAX Martin Ratio Rank: 96

DMAX

DMAX Risk / Return Rank: 96
DMAX Sharpe Ratio Rank: 94
DMAX Sortino Ratio Rank: 96
DMAX Omega Ratio Rank: 96
DMAX Calmar Ratio Rank: 95
DMAX Martin Ratio Rank: 97

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

SMAX vs. DMAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Large Cap Max Buffer Sep ETF (SMAX) and iShares Large Cap Max Buffer December ETF (DMAX). 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.

	SMAX	DMAX	Difference
Sharpe ratio Return per unit of total volatility	2.15	2.26	-0.11
Sortino ratio Return per unit of downside risk	3.26	3.38	-0.13
Omega ratio Gain probability vs. loss probability	1.49	1.51	-0.02
Calmar ratio Return relative to maximum drawdown	3.67	3.99	-0.32
Martin ratio Return relative to average drawdown	17.23	19.40	-2.18
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SMAX vs. DMAX - Sharpe Ratio Comparison

The current SMAX Sharpe Ratio is 2.15, which is comparable to the DMAX Sharpe Ratio of 2.26. The chart below compares the historical Sharpe Ratios of SMAX and DMAX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	SMAX	DMAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.15	2.26	-0.11
Sharpe Ratio (All Time) Calculated using the full available price history	1.50	1.68	-0.18

Correlation

The correlation between SMAX and DMAX is 0.77, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

SMAX vs. DMAX - Dividend Comparison

SMAX's dividend yield for the trailing twelve months is around 0.98%, less than DMAX's 1.18% yield.

	TTM	2025	2024
SMAX iShares Large Cap Max Buffer Sep ETF	0.98%	0.98%	0.27%
DMAX iShares Large Cap Max Buffer December ETF	1.18%	1.18%	0.00%

Drawdowns

SMAX vs. DMAX - Drawdown Comparison

The maximum SMAX drawdown since its inception was -3.90%, which is greater than DMAX's maximum drawdown of -3.37%. Use the drawdown chart below to compare losses from any high point for SMAX and DMAX.

Drawdown Indicators

	SMAX	DMAX	Difference
Max Drawdown Largest peak-to-trough decline	-3.90%	-3.37%	-0.53%
Max Drawdown (1Y) Largest decline over 1 year	-2.27%	-2.00%	-0.27%
Current Drawdown Current decline from peak	-1.21%	-0.97%	-0.24%
Average Drawdown Average peak-to-trough decline	-0.43%	-0.42%	-0.01%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.48%	0.41%	+0.07%

Volatility

SMAX vs. DMAX - Volatility Comparison

iShares Large Cap Max Buffer Sep ETF (SMAX) has a higher volatility of 1.30% compared to iShares Large Cap Max Buffer December ETF (DMAX) at 0.98%. This indicates that SMAX's price experiences larger fluctuations and is considered to be riskier than DMAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SMAX	DMAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.30%	0.98%	+0.32%
Volatility (6M) Calculated over the trailing 6-month period	2.14%	1.81%	+0.33%
Volatility (1Y) Calculated over the trailing 1-year period	3.82%	3.46%	+0.36%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	3.80%	3.57%	+0.23%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.80%	3.57%	+0.23%