GHC vs. WDC

Last updated Jun 3, 2026

GHC (Graham Holdings Company) and WDC (Western Digital Corporation) are both stocks. GHC operates in Education & Training Services (Consumer Defensive), while WDC operates in Computer Hardware (Technology). Over the past 10 years, GHC returned 9.21%/yr vs 33.49%/yr for WDC. At a 0.22 correlation, their price movements are largely independent.

Performance

GHC vs. WDC - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Graham Holdings Company (GHC) and Western Digital Corporation (WDC). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, GHC achieves a 1.02% return, which is significantly lower than WDC's 227.03% return. Over the past 10 years, GHC has underperformed WDC with an annualized return of 9.21%, while WDC has yielded a comparatively higher 33.49% annualized return.

GHC

• 1D: -0.35%
• 1M: -2.49%
• YTD: 1.02%
• 6M: 0.46%
• 1Y: 16.95%
• 3Y*: 24.73%
• 5Y*: 12.37%
• 10Y*: 9.21%

WDC

• 1D: 3.09%
• 1M: 30.49%
• YTD: 227.03%
• 6M: 252.41%
• 1Y: 983.60%
• 3Y*: 164.92%
• 5Y*: 57.67%
• 10Y*: 33.49%

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

GHC vs. WDC - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
GHC Graham Holdings Company	1.02%	26.98%	26.32%	16.56%	-3.02%	19.25%	-15.32%	0.57%	15.78%	10.05%
WDC Western Digital Corporation	227.03%	283.68%	13.86%	65.99%	-51.62%	17.73%	-10.89%	77.14%	-51.90%	19.83%

Correlation

The correlation between GHC and WDC is -0.03, 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	-0.03
Correlation (3Y) Calculated over the trailing 3-year period	0.19
Correlation (5Y) Calculated over the trailing 5-year period	0.27
Correlation (10Y) Calculated over the trailing 10-year period	0.29
Correlation (All Time) Calculated using the full available price history since Jan 25, 1990	0.22

The correlation between GHC and WDC shifts across timeframes, from -0.03 (1 year) to 0.29 (10 years), reflecting how their relationship changes across market environments.

Fundamentals

EPS GHC : $90.63 WDC : $23.29
PE Ratio GHC : 12.21 WDC : 24.18
PEG Ratio GHC : 0.14 WDC : 0.56
PS Ratio GHC : 0.97 WDC : 13.32
Total Revenue (TTM) GHC : $3.75B WDC : $11.78B
Gross Profit (TTM) GHC : $1.10B WDC : $5.35B
EBITDA (TTM) GHC : $722.08M WDC : $10.88B

Return for Risk

GHC vs. WDC — Risk / Return Rank

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

GHC

GHC Risk / Return Rank: 58
GHC Sharpe Ratio Rank: 62
GHC Sortino Ratio Rank: 54
GHC Omega Ratio Rank: 53
GHC Calmar Ratio Rank: 59
GHC Martin Ratio Rank: 61

WDC

WDC Risk / Return Rank: 100
WDC Sharpe Ratio Rank: 100
WDC Sortino Ratio Rank: 99
WDC Omega Ratio Rank: 99
WDC Calmar Ratio Rank: 100
WDC Martin Ratio Rank: 100

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.

GHC vs. WDC - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Graham Holdings Company (GHC) and Western Digital Corporation (WDC). 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.

	GHC	WDC	Difference
Sharpe ratio Return per unit of total volatility	0.64	15.73	-15.09
Sortino ratio Return per unit of downside risk	1.05	7.49	-6.44
Omega ratio Gain probability vs. loss probability	1.13	2.04	-0.91
Calmar ratio Return relative to maximum drawdown	0.85	48.42	-47.57
Martin ratio Return relative to average drawdown	2.24	173.54	-171.30
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

GHC vs. WDC - Sharpe Ratio Comparison

The current GHC Sharpe Ratio is 0.64, which is lower than the WDC Sharpe Ratio of 15.73. The chart below compares the historical Sharpe Ratios of GHC and WDC, 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

	GHC	WDC	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.64	15.73	-15.09
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.48	1.20	-0.72
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.33	0.70	-0.37
Sharpe Ratio (All Time) Calculated using the full available price history	0.27	0.21	+0.07

Drawdowns

GHC vs. WDC - Drawdown Comparison

The maximum GHC drawdown since its inception was -67.54%, smaller than the maximum WDC drawdown of -96.20%. Use the drawdown chart below to compare losses from any high point for GHC and WDC.

Drawdown Indicators

	GHC	WDC	Difference
Max Drawdown Largest peak-to-trough decline	-67.54%	-96.20%	+28.66%
Max Drawdown (1Y) Largest decline over 1 year	-19.78%	-20.59%	+0.81%
Max Drawdown (3Y) Largest decline over 3 years	-19.78%	-49.65%	+29.87%
Max Drawdown (5Y) Largest decline over 5 years	-20.79%	-60.85%	+40.06%
Max Drawdown (10Y) Largest decline over 10 years	-62.55%	-70.49%	+7.94%
Current Drawdown Current decline from peak	-7.03%	0.00%	-7.03%
Average Drawdown Average peak-to-trough decline	-19.32%	-52.11%	+32.79%
Ulcer Index Depth and duration of drawdowns from previous peaks	7.46%	5.75%	+1.71%

Volatility

GHC vs. WDC - Volatility Comparison

The current volatility for Graham Holdings Company (GHC) is 5.75%, while Western Digital Corporation (WDC) has a volatility of 16.72%. This indicates that GHC experiences smaller price fluctuations and is considered to be less risky than WDC based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	GHC	WDC	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.75%	16.72%	-10.97%
Volatility (6M) Calculated over the trailing 6-month period	15.98%	51.26%	-35.28%
Volatility (1Y) Calculated over the trailing 1-year period	26.52%	63.17%	-36.65%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	26.06%	48.27%	-22.21%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	28.28%	48.36%	-20.08%

Dividends

GHC vs. WDC - Dividend Comparison

GHC's dividend yield for the trailing twelve months is around 0.67%, more than WDC's 0.08% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
GHC Graham Holdings Company	0.67%	0.66%	0.79%	0.95%	1.05%	0.96%	1.09%	0.87%	0.83%	0.91%	0.95%	89.61%
WDC Western Digital Corporation	0.08%	0.19%	0.00%	0.00%	0.00%	0.00%	1.81%	2.36%	5.41%	2.51%	2.94%	3.33%

Financials

Frequently Asked Questions

Can I hold both GHC and WDC in my portfolio?

GHC and WDC have a correlation of -0.03, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, GHC or WDC?

WDC has higher volatility (16.72%) compared to GHC (5.75%). In terms of maximum drawdown, GHC dropped -67.54% vs WDC's -96.20%.

Which has better risk-adjusted returns?

WDC currently has the higher Sharpe Ratio (15.73 vs 0.64), 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.