BCSKX vs. MCSRX

Last updated Aug 1, 2026

BCSKX (BlackRock Commodity Strategies Fund Class K) and MCSRX (MFS Commodity Strategy Fund) are both Commodities funds - BCSKX tracks the Bloomberg Commodity Index Total Return while MCSRX tracks the Bloomberg Commodity Index. Both are passively managed. Over the past 5 years, BCSKX returned 11.92%/yr vs 10.36%/yr for MCSRX. Their 0.76 correlation means they have sometimes moved together and sometimes differently. BCSKX charges 0.67%/yr vs 0.82%/yr for MCSRX.

Performance

BCSKX vs. MCSRX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in BlackRock Commodity Strategies Fund Class K (BCSKX) and MFS Commodity Strategy Fund (MCSRX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BCSKX achieves a 17.91% return, which is significantly lower than MCSRX's 19.67% return.

BCSKX

• 1D: 0.47%
• 1M: 6.78%
• 6M: 6.40%
• YTD: 17.91%
• 1Y: 37.53%
• 3Y*: 15.03%
• 5Y*: 11.92%
• 10Y*: —
• ALL TIME*: 10.63%

MCSRX

• 1D: -0.23%
• 1M: 6.14%
• 6M: 9.09%
• YTD: 19.67%
• 1Y: 34.01%
• 3Y*: 12.94%
• 5Y*: 10.36%
• 10Y*: 7.43%
• ALL TIME*: 1.76%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
BCSKX BlackRock Commodity Strategies Fund Class K	$0.00	$0.00	$0.00
MCSRX MFS Commodity Strategy Fund	$0.00	$0.00	$0.00

BCSKX vs. MCSRX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
BCSKX BlackRock Commodity Strategies Fund Class K	17.91%	28.88%	4.44%	-4.27%	11.95%	22.49%	6.84%	3.89%	2.06%
MCSRX MFS Commodity Strategy Fund	19.67%	18.63%	5.18%	-6.07%	13.19%	27.96%	-0.36%	7.80%	-15.18%

Correlation

The correlation between BCSKX and MCSRX is 0.87, meaning they have usually moved in the same direction, including during past declines.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.87
Correlation (3Y) Balances recent behavior with more history.	0.83
Correlation (5Y) Shows whether the relationship held over a longer period.	0.83
Correlation (All Time) Calculated using the full available price history since Jan 29, 2018	0.76

The correlation between BCSKX and MCSRX shifts across timeframes, from 0.76 (all time) to 0.87 (1 year), reflecting how their relationship changes across market environments.

Return for Risk

BCSKX vs. MCSRX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

BCSKX

BCSKX Risk / Return Rank: 86
BCSKX Sharpe Ratio Rank: 92
BCSKX Sortino Ratio Rank: 84
BCSKX Omega Ratio Rank: 83
BCSKX Calmar Ratio Rank: 87
BCSKX Martin Ratio Rank: 83

MCSRX

MCSRX Risk / Return Rank: 70
MCSRX Sharpe Ratio Rank: 79
MCSRX Sortino Ratio Rank: 70
MCSRX Omega Ratio Rank: 74
MCSRX Calmar Ratio Rank: 74
MCSRX Martin Ratio Rank: 55

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

BCSKX vs. MCSRX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BlackRock Commodity Strategies Fund Class K (BCSKX) and MFS Commodity Strategy Fund (MCSRX). 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.

	BCSKX	MCSRX	Difference
Sharpe ratio: Return per unit of total volatility	2.35	1.90	+0.45
Sortino ratio: Return per unit of downside risk	2.98	2.47	+0.51
Omega ratio: Gain probability vs. loss probability	1.40	1.34	+0.06
Calmar ratio: Return relative to maximum drawdown	3.04	2.48	+0.56
Martin ratio: Return relative to average drawdown	10.16	7.80	+2.36

BCSKX vs. MCSRX - Sharpe Ratio Comparison

The current BCSKX Sharpe Ratio is 2.35, which is comparable to the MCSRX Sharpe Ratio of 1.90. The chart below compares the historical Sharpe Ratios of BCSKX and MCSRX, 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

BCSKX vs. MCSRX - Drawdown Comparison

The maximum BCSKX drawdown since its inception was -30.34%, smaller than the maximum MCSRX drawdown of -72.07%. Use the drawdown chart below to compare losses from any high point for BCSKX and MCSRX.

Drawdown Indicators

	BCSKX	MCSRX	Difference
Max Drawdown Largest peak-to-trough decline	-30.34%	-72.07%	+41.73%
Max Drawdown (1Y) Largest decline over 1 year	-11.62%	-12.50%	+0.88%
Max Drawdown (3Y) Largest decline over 3 years	-11.62%	-12.50%	+0.88%
Max Drawdown (5Y) Largest decline over 5 years	-22.34%	-37.76%	+15.42%
Max Drawdown (10Y) Largest decline over 10 years	—	-72.07%	—
Current Drawdown Current decline from peak	-4.72%	-20.97%	+16.25%
Average Drawdown Average peak-to-trough decline	-6.58%	-41.62%	+35.04%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.47%	4.00%	-0.53%

Volatility

BCSKX vs. MCSRX - Volatility Comparison

The current volatility for BlackRock Commodity Strategies Fund Class K (BCSKX) is 3.20%, while MFS Commodity Strategy Fund (MCSRX) has a volatility of 4.35%. This indicates that BCSKX experiences smaller price fluctuations and is considered to be less risky than MCSRX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BCSKX	MCSRX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.20%	4.35%	-1.15%
Volatility (6M) Calculated over the trailing 6-month period	11.67%	13.08%	-1.41%
Volatility (1Y) Calculated over the trailing 1-year period	15.06%	16.33%	-1.27%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.71%	34.75%	-19.04%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	15.02%	59.89%	-44.87%

BCSKX vs. MCSRX - Expense Ratio Comparison

BCSKX has a 0.67% expense ratio, which is lower than MCSRX's 0.82% expense ratio.

Dividends

BCSKX vs. MCSRX - Dividend Comparison

BCSKX's dividend yield for the trailing twelve months is around 14.54%, more than MCSRX's 13.52% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BCSKX BlackRock Commodity Strategies Fund Class K	14.54%	3.13%	3.66%	9.45%	9.11%	2.72%	0.84%	2.08%	2.02%	0.00%	0.00%	0.00%
MCSRX MFS Commodity Strategy Fund	13.52%	16.18%	3.39%	2.30%	27.57%	56.15%	0.91%	1.88%	3.50%	3.13%	0.61%	0.47%

Frequently Asked Questions

Can I hold both BCSKX and MCSRX in my portfolio?

BCSKX and MCSRX have a correlation of 0.87, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BCSKX or MCSRX?

MCSRX has higher volatility (4.35%) compared to BCSKX (3.20%). In terms of maximum drawdown, BCSKX dropped -30.34% vs MCSRX's -72.07%.

Which has better risk-adjusted returns?

BCSKX currently has the higher Sharpe Ratio (2.35 vs 1.90), 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.