SDD vs. FLYD

Last updated Jul 12, 2026

SDD (ProShares UltraShort SmallCap600) and FLYD (MicroSectors Travel -3X Inverse Leveraged ETNs) are both Inverse Equities funds - SDD tracks the S&P Small Cap 600 (-200%) while FLYD tracks the MerQube MicroSectors U.S. Travel Index. Both are passively managed. Over the past 3 years, SDD returned -24.65%/yr vs -51.90%/yr for FLYD. A 0.73 correlation means they provide meaningful diversification when combined. Both charge a 0.95% expense ratio.

Performance

SDD vs. FLYD - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ProShares UltraShort SmallCap600 (SDD) and MicroSectors Travel -3X Inverse Leveraged ETNs (FLYD). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SDD achieves a -32.06% return, which is significantly lower than FLYD's -28.20% return.

SDD

• 1D: 0.02%
• 1M: -2.88%
• 6M: -25.07%
• YTD: -32.06%
• 1Y: -40.76%
• 3Y*: -24.65%
• 5Y*: -17.22%
• 10Y*: -26.98%

FLYD

• 1D: -0.03%
• 1M: -12.10%
• 6M: -18.96%
• YTD: -28.20%
• 1Y: -39.46%
• 3Y*: -51.90%
• 5Y*: —
• 10Y*: —

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

SDD vs. FLYD - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
SDD ProShares UltraShort SmallCap600	-32.06%	-14.69%	-13.60%	-25.99%	-15.37%
FLYD MicroSectors Travel -3X Inverse Leveraged ETNs	-28.20%	-60.42%	-54.13%	-75.14%	-46.63%

Correlation

The correlation between SDD and FLYD is 0.69, 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	0.69
Correlation (3Y) Calculated over the trailing 3-year period	0.70
Correlation (All Time) Calculated using the full available price history since Jun 22, 2022	0.73

The correlation between SDD and FLYD has been stable across timeframes, ranging from 0.69 to 0.73 - a consistent structural relationship.

Return for Risk

SDD vs. FLYD — Risk / Return Rank

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

SDD

SDD Risk / Return Rank: 1
SDD Sharpe Ratio Rank: 1
SDD Sortino Ratio Rank: 1
SDD Omega Ratio Rank: 1
SDD Calmar Ratio Rank: 2
SDD Martin Ratio Rank: 1

FLYD

FLYD Risk / Return Rank: 5
FLYD Sharpe Ratio Rank: 5
FLYD Sortino Ratio Rank: 6
FLYD Omega Ratio Rank: 6
FLYD Calmar Ratio Rank: 4
FLYD Martin Ratio Rank: 2

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.

SDD vs. FLYD - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ProShares UltraShort SmallCap600 (SDD) and MicroSectors Travel -3X Inverse Leveraged ETNs (FLYD). 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.

	SDD	FLYD	Difference
Sharpe ratio: Return per unit of total volatility	-1.10	-0.49	-0.61
Sortino ratio: Return per unit of downside risk	-1.58	-0.31	-1.27
Omega ratio: Gain probability vs. loss probability	0.82	0.96	-0.15
Calmar ratio: Return relative to maximum drawdown	-0.83	-0.66	-0.17
Martin ratio: Return relative to average drawdown	-1.45	-1.34	-0.11

SDD vs. FLYD - Sharpe Ratio Comparison

The current SDD Sharpe Ratio is -1.10, which is lower than the FLYD Sharpe Ratio of -0.49. The chart below compares the historical Sharpe Ratios of SDD and FLYD, 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

SDD vs. FLYD - Drawdown Comparison

The maximum SDD drawdown since its inception was -99.94%, roughly equal to the maximum FLYD drawdown of -98.49%. Use the drawdown chart below to compare losses from any high point for SDD and FLYD.

Drawdown Indicators

	SDD	FLYD	Difference
Max Drawdown Largest peak-to-trough decline	-99.94%	-98.49%	-1.45%
Max Drawdown (1Y) Largest decline over 1 year	-47.71%	-56.11%	+8.40%
Max Drawdown (3Y) Largest decline over 3 years	-69.10%	-94.73%	+25.63%
Max Drawdown (5Y) Largest decline over 5 years	-71.26%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-96.11%	—	—
Current Drawdown Current decline from peak	-99.94%	-98.34%	-1.60%
Average Drawdown Average peak-to-trough decline	-86.96%	-83.41%	-3.55%
Ulcer Index Depth and duration of drawdowns from previous peaks	27.29%	27.59%	-0.30%

Volatility

SDD vs. FLYD - Volatility Comparison

The current volatility for ProShares UltraShort SmallCap600 (SDD) is 8.95%, while MicroSectors Travel -3X Inverse Leveraged ETNs (FLYD) has a volatility of 26.20%. This indicates that SDD experiences smaller price fluctuations and is considered to be less risky than FLYD based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SDD	FLYD	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.95%	26.20%	-17.25%
Volatility (6M) Calculated over the trailing 6-month period	24.79%	63.46%	-38.67%
Volatility (1Y) Calculated over the trailing 1-year period	35.96%	76.00%	-40.04%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	43.10%	83.62%	-40.52%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	45.02%	83.62%	-38.60%

SDD vs. FLYD - Expense Ratio Comparison

Both SDD and FLYD have an expense ratio of 0.95%.

Dividends

SDD vs. FLYD - Dividend Comparison

SDD's dividend yield for the trailing twelve months is around 6.33%, while FLYD has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018
FLYD MicroSectors Travel -3X Inverse Leveraged ETNs	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
SDD ProShares UltraShort SmallCap600	6.33%	5.07%	4.34%	3.84%	0.33%	0.00%	0.00%	1.20%	0.52%

Frequently Asked Questions

Can I hold both SDD and FLYD in my portfolio?

SDD and FLYD have a correlation of 0.69, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SDD or FLYD?

FLYD has higher volatility (26.20%) compared to SDD (8.95%). In terms of maximum drawdown, SDD dropped -99.94% vs FLYD's -98.49%.

Which ETF is better, SDD or FLYD?

On 3-year performance, SDD leads with -24.65% vs -51.90% for FLYD. Both ETFs have the same 0.95% expense ratio. On volatility, SDD has been the lower-risk option at 8.95%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, SDD or FLYD?

Over the 3-year period, SDD has performed better with a -24.65% return vs -51.90%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, SDD or FLYD?

SDD and FLYD have the same expense ratio: 0.95% per year.

Which ETF pays a higher dividend yield, SDD or FLYD?

SDD has the higher dividend yield at 6.33%, compared with 0.00% for FLYD.

What is the main difference between SDD and FLYD?

SDD tracks S&P Small Cap 600 (-200%), while FLYD tracks MerQube MicroSectors U.S. Travel Index. They also come from different issuers: ProShares and REX.

Which has better risk-adjusted returns?

FLYD currently has the higher Sharpe Ratio (-0.49 vs -1.10), 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.