DGX vs. PHSP.L

Last updated Jun 9, 2026

DGX (Quest Diagnostics Incorporated) is a stock, while PHSP.L (WisdomTree Physical Silver) is Silver fund tracking the LBMA Silver Price. Over the past 10 years, DGX returned 12.00%/yr vs 14.31%/yr for PHSP.L. At a 0.04 correlation, their price movements are largely independent.

Performance

DGX vs. PHSP.L - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Quest Diagnostics Incorporated (DGX) and WisdomTree Physical Silver (PHSP.L). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

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

Returns By Period

In the year-to-date period, DGX achieves a 14.66% return, which is significantly higher than PHSP.L's -4.46% return. Over the past 10 years, DGX has underperformed PHSP.L with an annualized return of 12.00%, while PHSP.L has yielded a comparatively higher 14.31% annualized return.

DGX

• 1D: -1.54%
• 1M: 5.24%
• YTD: 14.66%
• 6M: 9.44%
• 1Y: 15.16%
• 3Y*: 15.88%
• 5Y*: 11.27%
• 10Y*: 12.00%

PHSP.L

• 1D: -0.05%
• 1M: -14.48%
• YTD: -4.46%
• 6M: 17.79%
• 1Y: 89.41%
• 3Y*: 40.40%
• 5Y*: 19.14%
• 10Y*: 14.31%

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

DGX vs. PHSP.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
DGX Quest Diagnostics Incorporated	14.66%	17.20%	11.77%	-10.05%	-7.80%	47.86%	14.11%	31.13%	-13.84%	9.16%
PHSP.L WisdomTree Physical Silver	-4.46%	147.01%	20.80%	-1.58%	3.15%	-12.90%	45.17%	17.09%	-9.01%	3.31%

Correlation

The correlation between DGX and PHSP.L is 0.04, 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	0.04
Correlation (3Y) Calculated over the trailing 3-year period	0.05
Correlation (5Y) Calculated over the trailing 5-year period	0.05
Correlation (10Y) Calculated over the trailing 10-year period	0.05
Correlation (All Time) Calculated using the full available price history since Jan 3, 2008	0.04

Return for Risk

DGX vs. PHSP.L — Risk / Return Rank

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

DGX

DGX Risk / Return Rank: 63
DGX Sharpe Ratio Rank: 65
DGX Sortino Ratio Rank: 59
DGX Omega Ratio Rank: 57
DGX Calmar Ratio Rank: 68
DGX Martin Ratio Rank: 66

PHSP.L

PHSP.L Risk / Return Rank: 50
PHSP.L Sharpe Ratio Rank: 55
PHSP.L Sortino Ratio Rank: 47
PHSP.L Omega Ratio Rank: 57
PHSP.L Calmar Ratio Rank: 53
PHSP.L Martin Ratio Rank: 36

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.

DGX vs. PHSP.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Quest Diagnostics Incorporated (DGX) and WisdomTree Physical Silver (PHSP.L). 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.

	DGX	PHSP.L	Difference
Sharpe ratio: Return per unit of total volatility	0.67	1.59	-0.92
Sortino ratio: Return per unit of downside risk	1.17	2.01	-0.84
Omega ratio: Gain probability vs. loss probability	1.14	1.30	-0.16
Calmar ratio: Return relative to maximum drawdown	1.32	2.18	-0.86
Martin ratio: Return relative to average drawdown	2.74	4.66	-1.92
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

DGX vs. PHSP.L - Sharpe Ratio Comparison

The current DGX Sharpe Ratio is 0.67, which is lower than the PHSP.L Sharpe Ratio of 1.59. The chart below compares the historical Sharpe Ratios of DGX and PHSP.L, 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

	DGX	PHSP.L	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.67	1.59	-0.92
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.52	0.51	+0.02
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.51	0.44	+0.06
Sharpe Ratio (All Time) Calculated using the full available price history	0.53	0.08	+0.45

Drawdowns

DGX vs. PHSP.L - Drawdown Comparison

The maximum DGX drawdown since its inception was -49.46%, smaller than the maximum PHSP.L drawdown of -77.00%. Use the drawdown chart below to compare losses from any high point for DGX and PHSP.L.

Drawdown Indicators

	DGX	PHSP.L	Difference
Max Drawdown Largest peak-to-trough decline	-49.46%	-77.00%	+27.54%
Max Drawdown (1Y) Largest decline over 1 year	-11.55%	-40.88%	+29.33%
Max Drawdown (3Y) Largest decline over 3 years	-16.57%	-40.88%	+24.31%
Max Drawdown (5Y) Largest decline over 5 years	-28.62%	-40.88%	+12.26%
Max Drawdown (10Y) Largest decline over 10 years	-36.60%	-43.76%	+7.16%
Current Drawdown Current decline from peak	-6.53%	-40.05%	+33.52%
Average Drawdown Average peak-to-trough decline	-11.90%	-52.75%	+40.85%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.54%	19.13%	-13.59%

Volatility

DGX vs. PHSP.L - Volatility Comparison

The current volatility for Quest Diagnostics Incorporated (DGX) is 5.45%, while WisdomTree Physical Silver (PHSP.L) has a volatility of 16.82%. This indicates that DGX experiences smaller price fluctuations and is considered to be less risky than PHSP.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	DGX	PHSP.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.45%	16.82%	-11.37%
Volatility (6M) Calculated over the trailing 6-month period	16.64%	53.16%	-36.52%
Volatility (1Y) Calculated over the trailing 1-year period	22.79%	55.91%	-33.12%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.76%	37.93%	-16.17%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.78%	32.23%	-8.45%

Dividends

DGX vs. PHSP.L - Dividend Comparison

DGX's dividend yield for the trailing twelve months is around 1.65%, while PHSP.L has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DGX Quest Diagnostics Incorporated	1.65%	1.82%	1.96%	2.02%	1.66%	1.40%	1.85%	1.99%	2.34%	1.83%	1.72%	2.07%
PHSP.L WisdomTree Physical Silver	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both DGX and PHSP.L in my portfolio?

DGX and PHSP.L have a correlation of 0.04, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.