FSST vs. EFFE

Last updated Jun 4, 2026

FSST (Fidelity Sustainability U.S. Equity ETF) and EFFE (Harbor Osmosis Emerging Markets Resource Efficient ETF) are both exchange-traded funds - FSST is a Sustainable fund tracking the Russell 3000, while EFFE is a Emerging Markets Diversified fund actively managed by Harbor. FSST is passively managed, while EFFE is actively managed. At a 0.33 correlation, their price movements are largely independent. FSST charges 0.59%/yr vs 0.69%/yr for EFFE.

Performance

FSST vs. EFFE - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Sustainability U.S. Equity ETF (FSST) and Harbor Osmosis Emerging Markets Resource Efficient ETF (EFFE). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

FSST

• 1D: —
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

EFFE

• 1D: -0.18%
• 1M: 17.03%
• YTD: 29.22%
• 6M: 28.14%
• 1Y: 44.45%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

FSST vs. EFFE - Yearly Performance Comparison

	2026 (YTD)	2025	2024
FSST Fidelity Sustainability U.S. Equity ETF	0.00%	15.40%	0.08%
EFFE Harbor Osmosis Emerging Markets Resource Efficient ETF	29.22%	22.42%	-0.84%

Correlation

The correlation between FSST and EFFE is 0.22, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.22
Correlation (All Time) Calculated using the full available price history since Dec 20, 2024	0.33

The correlation between FSST and EFFE shifts across timeframes, from 0.22 (1 year) to 0.33 (all time), reflecting how their relationship changes across market environments.

Return for Risk

FSST vs. EFFE — Risk / Return Rank

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

EFFE

EFFE Risk / Return Rank: 68
EFFE Sharpe Ratio Rank: 69
EFFE Sortino Ratio Rank: 64
EFFE Omega Ratio Rank: 70
EFFE Calmar Ratio Rank: 66
EFFE Martin Ratio Rank: 69

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.

FSST vs. EFFE - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Sustainability U.S. Equity ETF (FSST) and Harbor Osmosis Emerging Markets Resource Efficient ETF (EFFE). 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.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Sharpe Ratios by Period

	FSST	EFFE	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	2.22	—
Sharpe Ratio (All Time) Calculated using the full available price history	—	1.85	—

Drawdowns

Drawdown Indicators

	FSST	EFFE	Difference
Max Drawdown Largest peak-to-trough decline	—	-13.75%	—
Max Drawdown (1Y) Largest decline over 1 year	—	-13.75%	—
Current Drawdown Current decline from peak	—	-0.18%	—
Average Drawdown Average peak-to-trough decline	—	-1.98%	—
Ulcer Index Depth and duration of drawdowns from previous peaks	—	3.53%	—

Volatility

Volatility by Period

	FSST	EFFE	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	9.71%	—
Volatility (6M) Calculated over the trailing 6-month period	—	17.67%	—
Volatility (1Y) Calculated over the trailing 1-year period	—	20.09%	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	—	19.91%	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	—	19.91%	—

FSST vs. EFFE - Expense Ratio Comparison

FSST has a 0.59% expense ratio, which is lower than EFFE's 0.69% expense ratio.

Dividends

FSST vs. EFFE - Dividend Comparison

FSST's dividend yield for the trailing twelve months is around 0.14%, less than EFFE's 3.63% yield.

Position	TTM	2025	2024	2023	2022	2021
EFFE Harbor Osmosis Emerging Markets Resource Efficient ETF	3.63%	4.69%	0.00%	0.00%	0.00%	0.00%
FSST Fidelity Sustainability U.S. Equity ETF	0.14%	0.19%	2.01%	0.68%	1.00%	0.34%

Frequently Asked Questions

Can I hold both FSST and EFFE in my portfolio?

FSST and EFFE have a correlation of 0.22, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, FSST or EFFE?

On fees, FSST is cheaper at 0.59% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, FSST or EFFE?

FSST is cheaper with a 0.59% expense ratio, compared with 0.69% for EFFE.

Which ETF pays a higher dividend yield, FSST or EFFE?

EFFE has the higher dividend yield at 3.63%, compared with 0.14% for FSST.

What is the main difference between FSST and EFFE?

FSST is categorized as Sustainable, while EFFE is Emerging Markets Diversified. They also come from different issuers: Fidelity and Harbor. Their fees differ too: 0.59% for FSST and 0.69% for EFFE.