ETF Versus

GSG vs PDBC

iShares S&P GSCI Commodity-Indexed Trust vs Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF

Last updated: 2026-04-02

GSG

iShares S&P GSCI Commodity-Indexed Trust (GSG) is an exchange-traded fund that provides exposure to broad commodities securities. It charges a high expense ratio of 0.75%. Launched in 2006, the fund has a 20-year track record.

AUM: $1.0B ER: 0.75% Yield: N/A Since: Jul 10, 2006

Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF (PDBC) is an exchange-traded fund that provides exposure to broad commodities securities. It charges a high expense ratio of 0.59%. The fund offers an attractive dividend yield of 2.97%. Launched in 2014, the fund has a 12-year track record.

AUM: $6.4B ER: 0.59% Yield: 2.97% Since: Nov 7, 2014

Quick Verdict

PDBC is significantly cheaper at 0.59% vs 0.75% expense ratio, saving you approximately $302 per $10,000 invested over 10 years. Over the past year, GSG has significantly outperformed with a 40.1% return vs 25.3%.

Key Metrics

Metric GSG PDBC
Expense Ratio 0.75% 0.59%
Dividend Yield N/A 3.0%
Fund Family N/A N/A
Category Broad Commodities Broad Commodities

Performance Chart

Indexed to 100 at start (5-year comparison)

70 102 134 166 198 230 2021-04 2022-06 2023-09 2024-12 2026-04
GSG +129.7%
PDBC -0.9%

Performance Comparison

Period GSG PDBC Difference
1 Month +18.45% +11.33% +7.12%
3 Months +38.32% +28.77% +9.55%
6 Months +40.26% +28.09% +12.17%
YTD +38.32% +28.77% +9.55%
1 Year +40.14% +25.27% +14.87%
3 Years +54.45% +18.26% +36.19%
5 Years +129.73% -0.93% +130.66%

Fee Impact Over Time

Estimated fee cost difference assuming 8% annual returns

Investment Period GSG Fees PDBC Fees You Save
$10.000 10 years $1.453 $1.151 $302
$10.000 20 years $6.064 $4.837 $1.227
$10.000 30 years $18.984 $15.249 $3.734
$50.000 10 years $7.266 $5.754 $1.512
$50.000 30 years $94.918 $76.247 $18.671
$100.000 30 years $189.836 $152.494 $37.341

Risk Metrics

Based on 5 years of daily returns

Metric GSG PDBC
Annualized Volatility 22.0% 23.8%
Max Drawdown -29.1% -46.2%
Sharpe Ratio 0.67 -0.07

Dividend Comparison

Metric GSG PDBC
Annual Dividend (per share) $0.00 $0.51
Dividend Yield 0.00% 2.98%
Distribution Frequency None Semi-Annual or Annual

Top Holdings

GSG Top Holdings

NameWeight
United States Treasury Bills 0%B.0 04.16.264.41%

Which One Should You Choose?

Choose PDBC if...

you want the lowest fees and plan to buy and hold long-term. Over decades, the expense ratio difference compounds significantly.

Choose GSG if...

recent performance momentum matters to your strategy. Note that past performance doesn't guarantee future results.

Either works if...

you just need broad broad commodities exposure. Both are solid options — pick whichever your brokerage offers commission-free.

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