MGCI.L vs. SPY

Last updated Jun 6, 2026

MGCI.L (M&G Credit Income Investment Trust plc) is a stock, while SPY (State Street SPDR S&P 500 ETF) is S&P 500 fund tracking the S&P 500 Index. Over the past 5 years, MGCI.L returned 6.60%/yr vs 15.14%/yr for SPY. At a 0.04 correlation, their price movements are largely independent.

Performance

MGCI.L vs. SPY - Performance Comparison

The chart below illustrates the hypothetical performance of a £10,000 investment in M&G Credit Income Investment Trust plc (MGCI.L) and State Street SPDR S&P 500 ETF (SPY). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

MGCI.L is traded in GBp, while SPY is traded in USD. To make them comparable, the SPY values have been converted to GBp using the latest available exchange rates.

Returns By Period

In the year-to-date period, MGCI.L achieves a -0.27% return, which is significantly lower than SPY's 11.78% return.

MGCI.L

• 1D: -0.76%
• 1M: 1.67%
• YTD: -0.27%
• 6M: 0.79%
• 1Y: 3.38%
• 3Y*: 8.71%
• 5Y*: 6.60%
• 10Y*: —

SPY

• 1D: 0.00%
• 1M: 4.50%
• YTD: 11.78%
• 6M: 10.31%
• 1Y: 30.60%
• 3Y*: 19.38%
• 5Y*: 15.14%
• 10Y*: 16.39%

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

MGCI.L vs. SPY - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
MGCI.L M&G Credit Income Investment Trust plc	-0.27%	7.01%	15.73%	8.47%	-2.69%	13.13%	-9.61%	5.51%	-0.10%
SPY State Street SPDR S&P 500 ETF	9.54%	9.33%	27.07%	19.87%	-8.45%	29.95%	14.86%	26.23%	-5.27%

Correlation

The correlation between MGCI.L and SPY is 0.05, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.05
Correlation (3Y) Calculated over the trailing 3-year period	-0.03
Correlation (5Y) Calculated over the trailing 5-year period	0.00
Correlation (All Time) Calculated using the full available price history since Nov 15, 2018	0.04

Return for Risk

MGCI.L vs. SPY — Risk / Return Rank

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

MGCI.L

MGCI.L Risk / Return Rank: 51
MGCI.L Sharpe Ratio Rank: 53
MGCI.L Sortino Ratio Rank: 44
MGCI.L Omega Ratio Rank: 45
MGCI.L Calmar Ratio Rank: 54
MGCI.L Martin Ratio Rank: 60

SPY

SPY Risk / Return Rank: 66
SPY Sharpe Ratio Rank: 66
SPY Sortino Ratio Rank: 63
SPY Omega Ratio Rank: 66
SPY Calmar Ratio Rank: 60
SPY Martin Ratio Rank: 73

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.

MGCI.L vs. SPY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for M&G Credit Income Investment Trust plc (MGCI.L) and State Street SPDR S&P 500 ETF (SPY). 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.

	MGCI.L	SPY	Difference
Sharpe ratio: Return per unit of total volatility	0.29	2.69	-2.40
Sortino ratio: Return per unit of downside risk	0.51	3.46	-2.95
Omega ratio: Gain probability vs. loss probability	1.07	1.51	-0.43
Calmar ratio: Return relative to maximum drawdown	0.51	4.00	-3.49
Martin ratio: Return relative to average drawdown	1.73	15.30	-13.57
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MGCI.L vs. SPY - Sharpe Ratio Comparison

The current MGCI.L Sharpe Ratio is 0.29, which is lower than the SPY Sharpe Ratio of 2.69. The chart below compares the historical Sharpe Ratios of MGCI.L and SPY, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	MGCI.L	SPY	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.29	2.69	-2.40
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.34	0.95	-0.61
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.91	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.21	0.69	-0.48

Drawdowns

MGCI.L vs. SPY - Drawdown Comparison

The maximum MGCI.L drawdown since its inception was -33.99%, roughly equal to the maximum SPY drawdown of -34.68%. Use the drawdown chart below to compare losses from any high point for MGCI.L and SPY.

Drawdown Indicators

	MGCI.L	SPY	Difference
Max Drawdown Largest peak-to-trough decline	-33.99%	-34.68%	+0.69%
Max Drawdown (1Y) Largest decline over 1 year	-6.67%	-7.69%	+1.02%
Max Drawdown (3Y) Largest decline over 3 years	-8.60%	-21.94%	+13.34%
Max Drawdown (5Y) Largest decline over 5 years	-14.68%	-21.94%	+7.26%
Max Drawdown (10Y) Largest decline over 10 years	—	-25.78%	—
Current Drawdown Current decline from peak	-1.48%	0.00%	-1.48%
Average Drawdown Average peak-to-trough decline	-3.80%	-4.77%	+0.97%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.95%	2.00%	-0.05%

Volatility

MGCI.L vs. SPY - Volatility Comparison

M&G Credit Income Investment Trust plc (MGCI.L) has a higher volatility of 5.82% compared to State Street SPDR S&P 500 ETF (SPY) at 2.44%. This indicates that MGCI.L's price experiences larger fluctuations and is considered to be riskier than SPY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MGCI.L	SPY	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.82%	2.44%	+3.38%
Volatility (6M) Calculated over the trailing 6-month period	10.69%	8.11%	+2.58%
Volatility (1Y) Calculated over the trailing 1-year period	11.66%	11.47%	+0.19%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.66%	16.01%	+3.65%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.09%	18.02%	+4.07%

Dividends

MGCI.L vs. SPY - Dividend Comparison

MGCI.L's dividend yield for the trailing twelve months is around 8.09%, more than SPY's 1.00% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MGCI.L M&G Credit Income Investment Trust plc	8.09%	8.26%	8.88%	9.03%	5.10%	4.23%	4.33%	1.97%	0.00%	0.00%	0.00%	0.00%
SPY State Street SPDR S&P 500 ETF	1.00%	1.07%	1.21%	1.40%	1.65%	1.20%	1.52%	1.75%	2.04%	1.80%	2.03%	2.06%

Frequently Asked Questions

Can I hold both MGCI.L and SPY in my portfolio?

MGCI.L and SPY have a correlation of 0.05, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.