SRFM vs. SPMO

Last updated Apr 1, 2026

Compare and contrast key facts about Surf Air Mobility Inc. (SRFM) and Invesco S&P 500 Momentum ETF (SPMO).

SPMO is a passively managed fund by Invesco that tracks the performance of the S&P 500 Momentum Index. It was launched on Oct 9, 2015.

Performance

SRFM vs. SPMO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Surf Air Mobility Inc. (SRFM) and Invesco S&P 500 Momentum ETF (SPMO). The values are adjusted to include any dividend payments, if applicable.

SRFM vs. SPMO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
SRFM Surf Air Mobility Inc.	-40.72%	-64.01%	-50.32%	-50.79%
SPMO Invesco S&P 500 Momentum ETF	-5.78%	26.58%	45.82%	16.67%

Returns By Period

In the year-to-date period, SRFM achieves a -40.72% return, which is significantly lower than SPMO's -5.78% return.

SRFM

• 1D: 8.49%
• 1M: -41.03%
• YTD: -40.72%
• 6M: -73.19%
• 1Y: -56.93%
• 3Y*: —
• 5Y*: —
• 10Y*: —

SPMO

• 1D: 3.96%
• 1M: -5.89%
• YTD: -5.78%
• 6M: -6.90%
• 1Y: 22.23%
• 3Y*: 28.36%
• 5Y*: 17.17%
• 10Y*: 17.16%

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

Return for Risk

SRFM vs. SPMO — Risk / Return Rank

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

SRFM

SRFM Risk / Return Rank: 24
SRFM Sharpe Ratio Rank: 24
SRFM Sortino Ratio Rank: 32
SRFM Omega Ratio Rank: 32
SRFM Calmar Ratio Rank: 15
SRFM Martin Ratio Rank: 19

SPMO

SPMO Risk / Return Rank: 66
SPMO Sharpe Ratio Rank: 59
SPMO Sortino Ratio Rank: 62
SPMO Omega Ratio Rank: 65
SPMO Calmar Ratio Rank: 74
SPMO Martin Ratio Rank: 68

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.

SRFM vs. SPMO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Surf Air Mobility Inc. (SRFM) and Invesco S&P 500 Momentum ETF (SPMO). 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.

	SRFM	SPMO	Difference
Sharpe ratio Return per unit of total volatility	-0.39	0.98	-1.37
Sortino ratio Return per unit of downside risk	0.11	1.51	-1.39
Omega ratio Gain probability vs. loss probability	1.01	1.22	-0.21
Calmar ratio Return relative to maximum drawdown	-0.74	1.79	-2.53
Martin ratio Return relative to average drawdown	-1.18	6.36	-7.53
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SRFM vs. SPMO - Sharpe Ratio Comparison

The current SRFM Sharpe Ratio is -0.39, which is lower than the SPMO Sharpe Ratio of 0.98. The chart below compares the historical Sharpe Ratios of SRFM and SPMO, 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

	SRFM	SPMO	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.39	0.98	-1.37
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.91	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.86	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.44	0.85	-1.28

Correlation

The correlation between SRFM and SPMO is 0.23, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

SRFM vs. SPMO - Dividend Comparison

SRFM has not paid dividends to shareholders, while SPMO's dividend yield for the trailing twelve months is around 0.91%.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SRFM Surf Air Mobility Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
SPMO Invesco S&P 500 Momentum ETF	0.91%	0.73%	0.48%	1.63%	1.66%	0.52%	1.27%	1.39%	1.05%	0.77%	1.94%	0.36%

Drawdowns

SRFM vs. SPMO - Drawdown Comparison

The maximum SRFM drawdown since its inception was -95.69%, which is greater than SPMO's maximum drawdown of -30.95%. Use the drawdown chart below to compare losses from any high point for SRFM and SPMO.

Drawdown Indicators

	SRFM	SPMO	Difference
Max Drawdown Largest peak-to-trough decline	-95.69%	-30.95%	-64.74%
Max Drawdown (1Y) Largest decline over 1 year	-87.95%	-12.70%	-75.25%
Max Drawdown (5Y) Largest decline over 5 years	—	-22.74%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-30.95%	—
Current Drawdown Current decline from peak	-94.78%	-9.24%	-85.54%
Average Drawdown Average peak-to-trough decline	-79.49%	-4.66%	-74.83%
Ulcer Index Depth and duration of drawdowns from previous peaks	55.62%	3.57%	+52.05%

Volatility

SRFM vs. SPMO - Volatility Comparison

Surf Air Mobility Inc. (SRFM) has a higher volatility of 31.03% compared to Invesco S&P 500 Momentum ETF (SPMO) at 6.82%. This indicates that SRFM's price experiences larger fluctuations and is considered to be riskier than SPMO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SRFM	SPMO	Difference
Volatility (1M) Calculated over the trailing 1-month period	31.03%	6.82%	+24.21%
Volatility (6M) Calculated over the trailing 6-month period	68.78%	12.62%	+56.16%
Volatility (1Y) Calculated over the trailing 1-year period	148.88%	22.68%	+126.20%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	154.01%	19.06%	+134.95%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	154.01%	20.08%	+133.93%