PCRB vs. COMT

Last updated Jul 15, 2026

PCRB (Putnam ESG Core Bond ETF -) and COMT (iShares GSCI Commodity Dynamic Roll Strategy ETF) are both exchange-traded funds - PCRB is a Intermediate Core Bond fund actively managed by Putnam, while COMT is a Commodities fund tracking the S&P GSCI Dynamic Roll (USD) Total Return Index. PCRB is actively managed, while COMT is passively managed. At a correlation of -0.15, they often move in opposite directions. PCRB charges 0.35%/yr vs 0.48%/yr for COMT.

Performance

PCRB vs. COMT - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Putnam ESG Core Bond ETF - (PCRB) and iShares GSCI Commodity Dynamic Roll Strategy ETF (COMT). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

PCRB

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

COMT

• 1D: 0.59%
• 1M: -0.52%
• 6M: 24.58%
• YTD: 29.95%
• 1Y: 33.06%
• 3Y*: 12.33%
• 5Y*: 11.81%
• 10Y*: 8.27%

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

PCRB vs. COMT - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
PCRB Putnam ESG Core Bond ETF -	-0.48%	7.21%	1.91%	2.40%
COMT iShares GSCI Commodity Dynamic Roll Strategy ETF	29.95%	6.07%	5.96%	-6.73%

Correlation

The correlation between PCRB and COMT is -0.31, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.31
Correlation (3Y) Calculated over the trailing 3-year period	-0.18
Correlation (All Time) Calculated using the full available price history since Jan 20, 2023	-0.15

The correlation between PCRB and COMT shifts across timeframes, from -0.31 (1 year) to -0.15 (all time), reflecting how their relationship changes across market environments.

Return for Risk

PCRB vs. COMT — Risk / Return Rank

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

PCRB

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

COMT

COMT Risk / Return Rank: 52
COMT Sharpe Ratio Rank: 57
COMT Sortino Ratio Rank: 55
COMT Omega Ratio Rank: 55
COMT Calmar Ratio Rank: 47
COMT Martin Ratio Rank: 48

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.

PCRB vs. COMT - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Putnam ESG Core Bond ETF - (PCRB) and iShares GSCI Commodity Dynamic Roll Strategy ETF (COMT). 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.

	PCRB	COMT	Difference
Sharpe ratio: Return per unit of total volatility	—	1.54	—
Sortino ratio: Return per unit of downside risk	—	2.13	—
Omega ratio: Gain probability vs. loss probability	—	1.27	—
Calmar ratio: Return relative to maximum drawdown	—	1.89	—
Martin ratio: Return relative to average drawdown	—	6.43	—

Drawdowns

Drawdown Indicators

	PCRB	COMT	Difference
Max Drawdown Largest peak-to-trough decline	—	-51.89%	—
Max Drawdown (1Y) Largest decline over 1 year	—	-17.57%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-17.57%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-29.00%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-39.22%	—
Current Drawdown Current decline from peak	—	-11.44%	—
Average Drawdown Average peak-to-trough decline	—	-23.96%	—
Ulcer Index Depth and duration of drawdowns from previous peaks	—	5.15%	—

Volatility

Volatility by Period

	PCRB	COMT	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	6.15%	—
Volatility (6M) Calculated over the trailing 6-month period	—	19.69%	—
Volatility (1Y) Calculated over the trailing 1-year period	—	21.56%	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	—	21.20%	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	—	18.86%	—

PCRB vs. COMT - Expense Ratio Comparison

PCRB has a 0.35% expense ratio, which is lower than COMT's 0.48% expense ratio.

Dividends

PCRB vs. COMT - Dividend Comparison

PCRB has not paid dividends to shareholders, while COMT's dividend yield for the trailing twelve months is around 5.96%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
COMT iShares GSCI Commodity Dynamic Roll Strategy ETF	5.96%	7.74%	4.90%	5.19%	29.79%	17.79%	0.36%	2.61%	11.65%	5.16%	0.52%	1.44%
PCRB Putnam ESG Core Bond ETF -	9.42%	4.30%	4.38%	3.65%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both PCRB and COMT in my portfolio?

PCRB and COMT have a correlation of -0.31, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, PCRB or COMT?

On fees, PCRB is cheaper at 0.35% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, PCRB or COMT?

PCRB is cheaper with a 0.35% expense ratio, compared with 0.48% for COMT.

Which ETF pays a higher dividend yield, PCRB or COMT?

PCRB has the higher dividend yield at 9.42%, compared with 5.96% for COMT.

What is the main difference between PCRB and COMT?

PCRB is categorized as Intermediate Core Bond, while COMT is Commodities. They also come from different issuers: Putnam and iShares. Their fees differ too: 0.35% for PCRB and 0.48% for COMT.