EWX vs. TDEC

Last updated Jun 24, 2026

EWX (SPDR S&P Emerging Markets Small Cap ETF) and TDEC (FT Vest Emerging Markets Buffer ETF - December) are both exchange-traded funds - EWX is a Emerging Markets Equities fund tracking the S&P Emerging Markets Under USD2 Billion Index, while TDEC is a Defined Outcome fund tracking the MSCI Emerging Markets. Both are passively managed. Over the past year, EWX returned 28.18% vs 20.35% for TDEC. Their correlation of 0.83 suggests significant overlap in exposure. EWX charges 0.65%/yr vs 0.95%/yr for TDEC.

Performance

EWX vs. TDEC - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in SPDR S&P Emerging Markets Small Cap ETF (EWX) and FT Vest Emerging Markets Buffer ETF - December (TDEC). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, EWX achieves a 13.61% return, which is significantly higher than TDEC's 7.66% return.

EWX

• 1D: -3.18%
• 1M: 0.57%
• YTD: 13.61%
• 6M: 14.14%
• 1Y: 28.18%
• 3Y*: 15.75%
• 5Y*: 6.92%
• 10Y*: 10.00%

TDEC

• 1D: -2.13%
• 1M: -0.09%
• YTD: 7.66%
• 6M: 8.74%
• 1Y: 20.35%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

EWX vs. TDEC - Yearly Performance Comparison

	2026 (YTD)	2025	2024
EWX SPDR S&P Emerging Markets Small Cap ETF	13.61%	15.46%	-1.49%
TDEC FT Vest Emerging Markets Buffer ETF - December	7.66%	21.39%	-0.75%

Correlation

The correlation between EWX and TDEC is 0.82, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.82
Correlation (All Time) Calculated using the full available price history since Dec 23, 2024	0.83

The correlation between EWX and TDEC has been stable across timeframes, ranging from 0.82 to 0.83 - a consistent structural relationship.

Return for Risk

EWX vs. TDEC — Risk / Return Rank

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

EWX

EWX Risk / Return Rank: 60
EWX Sharpe Ratio Rank: 55
EWX Sortino Ratio Rank: 52
EWX Omega Ratio Rank: 55
EWX Calmar Ratio Rank: 74
EWX Martin Ratio Rank: 63

TDEC

TDEC Risk / Return Rank: 65
TDEC Sharpe Ratio Rank: 64
TDEC Sortino Ratio Rank: 62
TDEC Omega Ratio Rank: 79
TDEC Calmar Ratio Rank: 55
TDEC Martin Ratio Rank: 65

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.

EWX vs. TDEC - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SPDR S&P Emerging Markets Small Cap ETF (EWX) and FT Vest Emerging Markets Buffer ETF - December (TDEC). 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.

	EWX	TDEC	Difference
Sharpe ratio: Return per unit of total volatility	1.76	1.91	-0.15
Sortino ratio: Return per unit of downside risk	2.37	2.63	-0.26
Omega ratio: Gain probability vs. loss probability	1.33	1.43	-0.10
Calmar ratio: Return relative to maximum drawdown	3.55	2.51	+1.04
Martin ratio: Return relative to average drawdown	10.92	10.81	+0.11

EWX vs. TDEC - Sharpe Ratio Comparison

The current EWX Sharpe Ratio is 1.76, which is comparable to the TDEC Sharpe Ratio of 1.91. The chart below compares the historical Sharpe Ratios of EWX and TDEC, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

EWX vs. TDEC - Drawdown Comparison

The maximum EWX drawdown since its inception was -63.90%, which is greater than TDEC's maximum drawdown of -10.30%. Use the drawdown chart below to compare losses from any high point for EWX and TDEC.

Drawdown Indicators

	EWX	TDEC	Difference
Max Drawdown Largest peak-to-trough decline	-63.90%	-10.30%	-53.60%
Max Drawdown (1Y) Largest decline over 1 year	-7.98%	-8.16%	+0.18%
Max Drawdown (3Y) Largest decline over 3 years	-21.37%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-24.67%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-43.00%	—	—
Current Drawdown Current decline from peak	-3.18%	-2.13%	-1.05%
Average Drawdown Average peak-to-trough decline	-13.14%	-1.05%	-12.09%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.59%	1.89%	+0.70%

Volatility

EWX vs. TDEC - Volatility Comparison

SPDR S&P Emerging Markets Small Cap ETF (EWX) has a higher volatility of 8.08% compared to FT Vest Emerging Markets Buffer ETF - December (TDEC) at 4.52%. This indicates that EWX's price experiences larger fluctuations and is considered to be riskier than TDEC based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	EWX	TDEC	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.08%	4.52%	+3.56%
Volatility (6M) Calculated over the trailing 6-month period	14.09%	9.98%	+4.11%
Volatility (1Y) Calculated over the trailing 1-year period	16.12%	10.71%	+5.41%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.51%	12.03%	+3.48%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.17%	12.03%	+5.14%

EWX vs. TDEC - Expense Ratio Comparison

EWX has a 0.65% expense ratio, which is lower than TDEC's 0.95% expense ratio.

Dividends

EWX vs. TDEC - Dividend Comparison

EWX's dividend yield for the trailing twelve months is around 2.49%, while TDEC has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
EWX SPDR S&P Emerging Markets Small Cap ETF	2.49%	2.91%	2.90%	2.32%	3.00%	2.77%	2.24%	2.73%	3.26%	2.30%	2.46%	3.04%
TDEC FT Vest Emerging Markets Buffer ETF - December	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both EWX and TDEC in my portfolio?

EWX and TDEC have a correlation of 0.82, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, EWX or TDEC?

EWX has higher volatility (8.08%) compared to TDEC (4.52%). In terms of maximum drawdown, EWX dropped -63.90% vs TDEC's -10.30%.

Which ETF is better, EWX or TDEC?

On 1-year performance, EWX leads with 28.18% vs 20.35% for TDEC. On fees, EWX is cheaper at 0.65% per year. On volatility, TDEC has been the lower-risk option at 4.52%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, EWX or TDEC?

Over the 1-year period, EWX has performed better with a 28.18% return vs 20.35%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, EWX or TDEC?

EWX is cheaper with a 0.65% expense ratio, compared with 0.95% for TDEC.

Which ETF pays a higher dividend yield, EWX or TDEC?

EWX has the higher dividend yield at 2.49%, compared with 0.00% for TDEC.

What is the main difference between EWX and TDEC?

EWX is categorized as Emerging Markets Equities, while TDEC is Defined Outcome. EWX tracks S&P Emerging Markets Under USD2 Billion Index, while TDEC tracks MSCI Emerging Markets. They also come from different issuers: State Street and FT Vest. Their fees differ too: 0.65% for EWX and 0.95% for TDEC.

Which has better risk-adjusted returns?

TDEC currently has the higher Sharpe Ratio (1.91 vs 1.76), 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.