FIFGX vs. PDBC

Last updated Jun 23, 2026

FIFGX (Fidelity SAI Inflation-Focused) and PDBC (Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF) are both Commodities funds. Over the past 5 years, FIFGX returned 74.86%/yr vs 10.25%/yr for PDBC. Their correlation of 0.91 suggests significant overlap in exposure. FIFGX charges 0.39%/yr vs 0.58%/yr for PDBC.

Performance

FIFGX vs. PDBC - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity SAI Inflation-Focused (FIFGX) and Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF (PDBC). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FIFGX achieves a 32.95% return, which is significantly higher than PDBC's 23.47% return.

FIFGX

• 1D: -0.13%
• 1M: -9.53%
• YTD: 32.95%
• 6M: 30.30%
• 1Y: 28.69%
• 3Y*: 141.87%
• 5Y*: 74.86%
• 10Y*: —

PDBC

• 1D: -0.85%
• 1M: -10.11%
• YTD: 23.47%
• 6M: 23.29%
• 1Y: 22.26%
• 3Y*: 10.44%
• 5Y*: 10.25%
• 10Y*: 7.71%

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

FIFGX vs. PDBC - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
FIFGX Fidelity SAI Inflation-Focused	32.95%	7.44%	6.34%	781.04%	9.30%	32.92%	1.48%	9.32%	-2.00%
PDBC Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF	23.47%	5.96%	2.09%	-6.25%	19.23%	41.72%	-7.84%	11.44%	-2.24%

Correlation

The correlation between FIFGX and PDBC is 0.97 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.97
Correlation (3Y) Calculated over the trailing 3-year period	0.96
Correlation (5Y) Calculated over the trailing 5-year period	0.93
Correlation (All Time) Calculated using the full available price history since Dec 20, 2018	0.91

The correlation between FIFGX and PDBC has been stable across timeframes, ranging from 0.91 to 0.97 - a consistent structural relationship.

Return for Risk

FIFGX vs. PDBC — Risk / Return Rank

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

FIFGX

FIFGX Risk / Return Rank: 29
FIFGX Sharpe Ratio Rank: 26
FIFGX Sortino Ratio Rank: 23
FIFGX Omega Ratio Rank: 24
FIFGX Calmar Ratio Rank: 40
FIFGX Martin Ratio Rank: 34

PDBC

PDBC Risk / Return Rank: 35
PDBC Sharpe Ratio Rank: 34
PDBC Sortino Ratio Rank: 32
PDBC Omega Ratio Rank: 33
PDBC Calmar Ratio Rank: 34
PDBC Martin Ratio Rank: 44

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.

FIFGX vs. PDBC - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity SAI Inflation-Focused (FIFGX) and Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF (PDBC). 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.

	FIFGX	PDBC	Difference
Sharpe ratio: Return per unit of total volatility	1.36	1.20	+0.16
Sortino ratio: Return per unit of downside risk	1.88	1.68	+0.21
Omega ratio: Gain probability vs. loss probability	1.24	1.21	+0.03
Calmar ratio: Return relative to maximum drawdown	2.27	1.66	+0.61
Martin ratio: Return relative to average drawdown	7.17	7.01	+0.16

FIFGX vs. PDBC - Sharpe Ratio Comparison

The current FIFGX Sharpe Ratio is 1.36, which is comparable to the PDBC Sharpe Ratio of 1.20. The chart below compares the historical Sharpe Ratios of FIFGX and PDBC, 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

FIFGX vs. PDBC - Drawdown Comparison

The maximum FIFGX drawdown since its inception was -29.47%, smaller than the maximum PDBC drawdown of -49.52%. Use the drawdown chart below to compare losses from any high point for FIFGX and PDBC.

Drawdown Indicators

	FIFGX	PDBC	Difference
Max Drawdown Largest peak-to-trough decline	-29.47%	-49.52%	+20.05%
Max Drawdown (1Y) Largest decline over 1 year	-12.91%	-13.48%	+0.57%
Max Drawdown (3Y) Largest decline over 3 years	-12.91%	-13.95%	+1.04%
Max Drawdown (5Y) Largest decline over 5 years	-29.47%	-27.63%	-1.84%
Max Drawdown (10Y) Largest decline over 10 years	—	-40.73%	—
Current Drawdown Current decline from peak	-12.91%	-13.48%	+0.57%
Average Drawdown Average peak-to-trough decline	-7.68%	-23.15%	+15.47%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.07%	4.04%	+0.03%

Volatility

FIFGX vs. PDBC - Volatility Comparison

Fidelity SAI Inflation-Focused (FIFGX) has a higher volatility of 5.18% compared to Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF (PDBC) at 4.38%. This indicates that FIFGX's price experiences larger fluctuations and is considered to be riskier than PDBC based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FIFGX	PDBC	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.18%	4.38%	+0.80%
Volatility (6M) Calculated over the trailing 6-month period	18.68%	16.17%	+2.51%
Volatility (1Y) Calculated over the trailing 1-year period	21.58%	18.73%	+2.85%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	406.15%	19.15%	+387.00%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	331.81%	17.78%	+314.03%

FIFGX vs. PDBC - Expense Ratio Comparison

FIFGX has a 0.39% expense ratio, which is lower than PDBC's 0.58% expense ratio.

Dividends

FIFGX vs. PDBC - Dividend Comparison

FIFGX's dividend yield for the trailing twelve months is around 4.09%, more than PDBC's 3.11% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016
FIFGX Fidelity SAI Inflation-Focused	4.09%	5.44%	4.73%	1.54%	12.64%	35.77%	3.10%	1.59%	0.00%	0.00%	0.00%
PDBC Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF	3.11%	3.84%	4.42%	4.21%	13.05%	50.83%	0.01%	1.40%	1.00%	3.83%	6.51%

Frequently Asked Questions

Can I hold both FIFGX and PDBC in my portfolio?

With a correlation of 0.97, FIFGX and PDBC move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, FIFGX or PDBC?

FIFGX has higher volatility (5.18%) compared to PDBC (4.38%). In terms of maximum drawdown, FIFGX dropped -29.47% vs PDBC's -49.52%.

Which has better risk-adjusted returns?

FIFGX currently has the higher Sharpe Ratio (1.36 vs 1.20), 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.