TWOX vs. PMMY

Last updated Jun 4, 2026

TWOX (iShares Large Cap Accelerated Outcome ETF) and PMMY (PGIM S&P 500 Max Buffer ETF - May) are both Defined Outcome funds. Both are actively managed. Over the past year, TWOX returned 16.12% vs 5.98% for PMMY. A 0.74 correlation means they provide meaningful diversification when combined. Both charge a 0.50% expense ratio.

Performance

TWOX vs. PMMY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Large Cap Accelerated Outcome ETF (TWOX) and PGIM S&P 500 Max Buffer ETF - May (PMMY). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both investments are quite close, with TWOX having a 2.15% return and PMMY slightly higher at 2.19%.

TWOX

• 1D: 0.00%
• 1M: 1.50%
• YTD: 2.15%
• 6M: 3.54%
• 1Y: 16.12%
• 3Y*: —
• 5Y*: —
• 10Y*: —

PMMY

• 1D: -0.04%
• 1M: 0.79%
• YTD: 2.19%
• 6M: 2.74%
• 1Y: 5.98%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

TWOX vs. PMMY - Yearly Performance Comparison

	2026 (YTD)	2025
TWOX iShares Large Cap Accelerated Outcome ETF	2.15%	20.28%
PMMY PGIM S&P 500 Max Buffer ETF - May	2.19%	4.59%

Correlation

The correlation between TWOX and PMMY is 0.75, 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	0.75
Correlation (All Time) Calculated using the full available price history since May 2, 2025	0.74

The correlation between TWOX and PMMY has been stable across timeframes, ranging from 0.74 to 0.75 - a consistent structural relationship.

Return for Risk

TWOX vs. PMMY — Risk / Return Rank

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

TWOX

TWOX Risk / Return Rank: 45
TWOX Sharpe Ratio Rank: 45
TWOX Sortino Ratio Rank: 43
TWOX Omega Ratio Rank: 53
TWOX Calmar Ratio Rank: 35
TWOX Martin Ratio Rank: 49

PMMY

PMMY Risk / Return Rank: 98
PMMY Sharpe Ratio Rank: 98
PMMY Sortino Ratio Rank: 99
PMMY Omega Ratio Rank: 99
PMMY Calmar Ratio Rank: 98
PMMY Martin Ratio Rank: 99

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.

TWOX vs. PMMY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Large Cap Accelerated Outcome ETF (TWOX) and PGIM S&P 500 Max Buffer ETF - May (PMMY). 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.

	TWOX	PMMY	Difference
Sharpe ratio: Return per unit of total volatility	1.55	5.35	-3.80
Sortino ratio: Return per unit of downside risk	2.14	9.00	-6.86
Omega ratio: Gain probability vs. loss probability	1.32	2.45	-1.13
Calmar ratio: Return relative to maximum drawdown	1.70	16.90	-15.19
Martin ratio: Return relative to average drawdown	8.04	89.69	-81.65
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

TWOX vs. PMMY - Sharpe Ratio Comparison

The current TWOX Sharpe Ratio is 1.55, which is lower than the PMMY Sharpe Ratio of 5.35. The chart below compares the historical Sharpe Ratios of TWOX and PMMY, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	TWOX	PMMY	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.55	5.35	-3.80
Sharpe Ratio (All Time) Calculated using the full available price history	0.67	4.56	-3.89

Drawdowns

TWOX vs. PMMY - Drawdown Comparison

The maximum TWOX drawdown since its inception was -19.35%, which is greater than PMMY's maximum drawdown of -0.36%. Use the drawdown chart below to compare losses from any high point for TWOX and PMMY.

Drawdown Indicators

	TWOX	PMMY	Difference
Max Drawdown Largest peak-to-trough decline	-19.35%	-0.36%	-18.99%
Max Drawdown (1Y) Largest decline over 1 year	-9.51%	-0.36%	-9.15%
Current Drawdown Current decline from peak	-0.02%	-0.04%	+0.02%
Average Drawdown Average peak-to-trough decline	-2.64%	-0.04%	-2.60%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.01%	0.07%	+1.94%

Volatility

TWOX vs. PMMY - Volatility Comparison

iShares Large Cap Accelerated Outcome ETF (TWOX) has a higher volatility of 0.49% compared to PGIM S&P 500 Max Buffer ETF - May (PMMY) at 0.36%. This indicates that TWOX's price experiences larger fluctuations and is considered to be riskier than PMMY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	TWOX	PMMY	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.49%	0.36%	+0.13%
Volatility (6M) Calculated over the trailing 6-month period	8.25%	0.87%	+7.38%
Volatility (1Y) Calculated over the trailing 1-year period	10.44%	1.12%	+9.32%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.78%	1.39%	+15.39%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.78%	1.39%	+15.39%

TWOX vs. PMMY - Expense Ratio Comparison

Both TWOX and PMMY have an expense ratio of 0.50%.

Dividends

TWOX vs. PMMY - Dividend Comparison

TWOX's dividend yield for the trailing twelve months is around 0.55%, while PMMY has not paid dividends to shareholders.

Position	TTM	2025
PMMY PGIM S&P 500 Max Buffer ETF - May	0.00%	0.00%
TWOX iShares Large Cap Accelerated Outcome ETF	0.55%	0.57%

Frequently Asked Questions

Can I hold both TWOX and PMMY in my portfolio?

TWOX and PMMY have a correlation of 0.75, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, TWOX or PMMY?

TWOX has higher volatility (0.49%) compared to PMMY (0.36%). In terms of maximum drawdown, TWOX dropped -19.35% vs PMMY's -0.36%.

Which ETF is better, TWOX or PMMY?

On 1-year performance, TWOX leads with 16.12% vs 5.98% for PMMY. Both ETFs have the same 0.50% expense ratio. On volatility, PMMY has been the lower-risk option at 0.36%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, TWOX or PMMY?

Over the 1-year period, TWOX has performed better with a 16.12% return vs 5.98%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, TWOX or PMMY?

TWOX and PMMY have the same expense ratio: 0.50% per year.

Which ETF pays a higher dividend yield, TWOX or PMMY?

TWOX has the higher dividend yield at 0.55%, compared with 0.00% for PMMY.

What is the main difference between TWOX and PMMY?

They also come from different issuers: iShares and PGIM.

Which has better risk-adjusted returns?

PMMY currently has the higher Sharpe Ratio (5.35 vs 1.55), 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.