DIAMX vs. SPY

Last updated Jun 24, 2026

DIAMX (Diamond Hill Long-Short Fund) and SPY (State Street SPDR S&P 500 ETF) are both funds - DIAMX is a Long-Short fund managed by Diamond Hill, while SPY is a S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, DIAMX returned 7.15%/yr vs 15.53%/yr for SPY. A 0.77 correlation means they provide meaningful diversification when combined. DIAMX charges 1.36%/yr vs 0.09%/yr for SPY.

Performance

DIAMX vs. SPY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Diamond Hill Long-Short Fund (DIAMX) and State Street SPDR S&P 500 ETF (SPY). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, DIAMX achieves a -7.62% return, which is significantly lower than SPY's 8.15% return. Over the past 10 years, DIAMX has underperformed SPY with an annualized return of 7.15%, while SPY has yielded a comparatively higher 15.53% annualized return.

DIAMX

• 1D: -0.88%
• 1M: -4.30%
• YTD: -7.62%
• 6M: -7.36%
• 1Y: 3.15%
• 3Y*: 9.80%
• 5Y*: 5.41%
• 10Y*: 7.15%

SPY

• 1D: -1.45%
• 1M: -1.36%
• YTD: 8.15%
• 6M: 7.20%
• 1Y: 23.59%
• 3Y*: 20.68%
• 5Y*: 13.05%
• 10Y*: 15.53%

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

DIAMX vs. SPY - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
DIAMX Diamond Hill Long-Short Fund	-7.62%	18.76%	9.93%	12.14%	-8.75%	19.04%	-0.56%	22.80%	-7.32%	5.65%
SPY State Street SPDR S&P 500 ETF	8.15%	17.72%	24.89%	26.18%	-18.18%	28.73%	18.33%	31.22%	-4.57%	21.71%

Correlation

The correlation between DIAMX and SPY is 0.57, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.57
Correlation (3Y) Calculated over the trailing 3-year period	0.66
Correlation (5Y) Calculated over the trailing 5-year period	0.76
Correlation (10Y) Calculated over the trailing 10-year period	0.78
Correlation (All Time) Calculated using the full available price history since Jun 30, 2000	0.77

The correlation between DIAMX and SPY shifts across timeframes, from 0.57 (1 year) to 0.78 (10 years), reflecting how their relationship changes across market environments.

Return for Risk

DIAMX vs. SPY — Risk / Return Rank

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

DIAMX

DIAMX Risk / Return Rank: 6
DIAMX Sharpe Ratio Rank: 7
DIAMX Sortino Ratio Rank: 6
DIAMX Omega Ratio Rank: 6
DIAMX Calmar Ratio Rank: 5
DIAMX Martin Ratio Rank: 6

SPY

SPY Risk / Return Rank: 59
SPY Sharpe Ratio Rank: 58
SPY Sortino Ratio Rank: 56
SPY Omega Ratio Rank: 57
SPY Calmar Ratio Rank: 56
SPY Martin Ratio Rank: 67

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.

DIAMX vs. SPY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Diamond Hill Long-Short Fund (DIAMX) 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.

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.

	DIAMX	SPY	Difference
Sharpe ratio: Return per unit of total volatility	0.49	1.90	-1.41
Sortino ratio: Return per unit of downside risk	0.74	2.58	-1.84
Omega ratio: Gain probability vs. loss probability	1.09	1.34	-0.26
Calmar ratio: Return relative to maximum drawdown	0.43	2.67	-2.23
Martin ratio: Return relative to average drawdown	1.33	11.92	-10.59

DIAMX vs. SPY - Sharpe Ratio Comparison

The current DIAMX Sharpe Ratio is 0.49, which is lower than the SPY Sharpe Ratio of 1.90. The chart below compares the historical Sharpe Ratios of DIAMX 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.

Drawdowns

DIAMX vs. SPY - Drawdown Comparison

The maximum DIAMX drawdown since its inception was -40.92%, smaller than the maximum SPY drawdown of -55.19%. Use the drawdown chart below to compare losses from any high point for DIAMX and SPY.

Drawdown Indicators

	DIAMX	SPY	Difference
Max Drawdown Largest peak-to-trough decline	-40.92%	-55.19%	+14.27%
Max Drawdown (1Y) Largest decline over 1 year	-8.25%	-8.88%	+0.63%
Max Drawdown (3Y) Largest decline over 3 years	-8.61%	-18.76%	+10.15%
Max Drawdown (5Y) Largest decline over 5 years	-16.96%	-24.50%	+7.54%
Max Drawdown (10Y) Largest decline over 10 years	-31.57%	-33.72%	+2.15%
Current Drawdown Current decline from peak	-8.25%	-3.17%	-5.08%
Average Drawdown Average peak-to-trough decline	-6.84%	-9.04%	+2.20%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.68%	1.98%	+0.70%

Volatility

DIAMX vs. SPY - Volatility Comparison

The current volatility for Diamond Hill Long-Short Fund (DIAMX) is 2.66%, while State Street SPDR S&P 500 ETF (SPY) has a volatility of 4.87%. This indicates that DIAMX experiences smaller price fluctuations and is considered to be less risky than SPY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	DIAMX	SPY	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.66%	4.87%	-2.21%
Volatility (6M) Calculated over the trailing 6-month period	5.87%	9.85%	-3.98%
Volatility (1Y) Calculated over the trailing 1-year period	7.33%	12.50%	-5.17%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	10.58%	17.15%	-6.57%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	12.94%	17.95%	-5.01%

DIAMX vs. SPY - Expense Ratio Comparison

DIAMX has a 1.36% expense ratio, which is higher than SPY's 0.09% expense ratio.

Dividends

DIAMX vs. SPY - Dividend Comparison

DIAMX's dividend yield for the trailing twelve months is around 1.51%, more than SPY's 1.03% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DIAMX Diamond Hill Long-Short Fund	1.51%	1.39%	9.52%	4.03%	5.07%	10.81%	0.97%	6.32%	4.94%	2.15%	3.42%	0.48%
SPY State Street SPDR S&P 500 ETF	1.03%	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 DIAMX and SPY in my portfolio?

DIAMX and SPY have a correlation of 0.57, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, DIAMX or SPY?

SPY has higher volatility (4.87%) compared to DIAMX (2.66%). In terms of maximum drawdown, DIAMX dropped -40.92% vs SPY's -55.19%.

Which has better risk-adjusted returns?

SPY currently has the higher Sharpe Ratio (1.90 vs 0.49), 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.