DGX vs. PETS
DGX (Quest Diagnostics Incorporated) and PETS (PetMed Express, Inc.) are both stocks. Both are in the Healthcare sector — DGX in Diagnostics & Research, PETS in Pharmaceutical Retailers. Over the past 10 years, DGX returned 12.79%/yr vs -18.51%/yr for PETS. Their 0.13 correlation means their historical movements had little consistent relationship.
Performance
DGX vs. PETS - Performance Comparison
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Returns By Period
In the year-to-date period, DGX achieves a 36.03% return, which is significantly higher than PETS's -39.06% return. Over the past 10 years, DGX has outperformed PETS with an annualized return of 12.79%, while PETS has yielded a comparatively lower -18.51% annualized return.
DGX
- 1D
- -0.55%
- 1M
- 8.45%
- 6M
- 25.64%
- YTD
- 36.03%
- 1Y
- 38.78%
- 3Y*
- 22.45%
- 5Y*
- 12.61%
- 10Y*
- 12.79%
- ALL TIME*
- 16.17%
PETS
- 1D
- -1.52%
- 1M
- -1.52%
- 6M
- -38.87%
- YTD
- -39.06%
- 1Y
- -39.81%
- 3Y*
- -47.49%
- 5Y*
- -41.07%
- 10Y*
- -18.51%
- ALL TIME*
- -2.82%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $320.44M | $243.98M | $192.25M | |
| $213.81K | $289.81K | $1.25M |
DGX vs. PETS - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
DGX Quest Diagnostics Incorporated | 36.03% | 17.20% | 11.77% | -10.05% | -7.80% | 47.86% | 14.11% | 31.13% | -13.84% | 9.16% |
PETS PetMed Express, Inc. | -39.06% | -33.61% | -36.24% | -54.76% | -25.83% | -18.17% | 41.49% | 6.52% | -47.35% | 102.05% |
Correlation
The correlation between DGX and PETS is 0.01, meaning there was essentially no consistent relationship between their historical price movements. Each responded to its own set of market drivers.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.01 |
Correlation (3Y) Balances recent behavior with more history. | 0.08 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.12 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.14 |
Correlation (All Time) Calculated using the full available price history since Apr 26, 1999 | 0.13 |
The correlation between DGX and PETS shifts across timeframes, from 0.01 (1 year) to 0.14 (10 years), reflecting how their relationship changes across market environments.
Fundamentals
DGX:
$25.72B
PETS:
$41.68M
DGX:
$9.46
PETS:
-$2.73
DGX:
2.26
PETS:
0.23
DGX:
3.47
PETS:
1.42
DGX:
$11.56B
PETS:
$179.02M
DGX:
$3.83B
PETS:
$50.22M
DGX:
$2.01B
PETS:
-$46.12M
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Return for Risk
DGX vs. PETS — Risk / Return Rank
DGX
PETS
DGX vs. PETS - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Quest Diagnostics Incorporated (DGX) and PetMed Express, Inc. (PETS). 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.
| DGX | PETS | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +2.14 | ||
| Sortino ratioReturn per unit of downside risk | +2.94 | ||
| Omega ratioGain probability vs. loss probability | 1.33 | 0.98 | +0.35 |
| Calmar ratioReturn relative to maximum drawdown | 3.62 | -0.66 | +4.28 |
| Martin ratioReturn relative to average drawdown | 7.81 | -1.10 | +8.91 |
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Drawdowns
DGX vs. PETS - Drawdown Comparison
The maximum DGX drawdown since its inception was -49.46%, smaller than the maximum PETS drawdown of -98.29%. Use the drawdown chart below to compare losses from any high point for DGX and PETS.
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Drawdown Indicators
| DGX | PETS | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -49.46% | -98.29% | +48.83% |
Max Drawdown (1Y)Largest decline over 1 year | -11.55% | -56.92% | +45.37% |
Max Drawdown (3Y)Largest decline over 3 years | -12.44% | -87.73% | +75.29% |
Max Drawdown (5Y)Largest decline over 5 years | -28.62% | -94.34% | +65.72% |
Max Drawdown (10Y)Largest decline over 10 years | -36.60% | -96.40% | +59.80% |
Current DrawdownCurrent decline from peak | -1.24% | -95.62% | +94.38% |
Average DrawdownAverage peak-to-trough decline | -11.85% | -44.63% | +32.78% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 5.35% | 34.00% | -28.65% |
Volatility
DGX vs. PETS - Volatility Comparison
Quest Diagnostics Incorporated (DGX) has a higher volatility of 10.20% compared to PetMed Express, Inc. (PETS) at 9.68%. This indicates that DGX's price experiences larger fluctuations and is considered to be riskier than PETS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| DGX | PETS | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 10.20% | 9.68% | +0.52% |
Volatility (6M)Calculated over the trailing 6-month period | 18.50% | 33.29% | -14.79% |
Volatility (1Y)Calculated over the trailing 1-year period | 23.82% | 97.12% | -73.30% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 22.35% | 64.09% | -41.74% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 23.99% | 62.97% | -38.98% |
Dividends
DGX vs. PETS - Dividend Comparison
DGX's dividend yield for the trailing twelve months is around 1.42%, while PETS has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
DGX Quest Diagnostics Incorporated | 1.42% | 1.82% | 1.96% | 2.02% | 1.66% | 1.40% | 1.85% | 1.99% | 2.34% | 1.83% | 1.72% | 2.07% |
PETS PetMed Express, Inc. | 0.00% | 0.00% | 0.00% | 11.90% | 6.78% | 4.67% | 3.46% | 4.59% | 4.47% | 1.74% | 3.25% | 4.14% |
Financials
DGX vs. PETS - Financials Comparison
This section allows you to compare key financial metrics between Quest Diagnostics Incorporated and PetMed Express, Inc.. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
DGX vs. PETS - Profitability Comparison
DGX - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, Quest Diagnostics Incorporated reported a gross profit of 1.03B and revenue of 3.04B. Therefore, the gross margin over that period was 33.8%.
PETS - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, PetMed Express, Inc. reported a gross profit of 16.23M and revenue of 42.82M. Therefore, the gross margin over that period was 37.9%.
DGX - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, Quest Diagnostics Incorporated reported an operating income of 459.00M and revenue of 3.04B, resulting in an operating margin of 15.1%.
PETS - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, PetMed Express, Inc. reported an operating income of -32.95M and revenue of 42.82M, resulting in an operating margin of -77.0%.
DGX - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, Quest Diagnostics Incorporated reported a net income of 320.00M and revenue of 3.04B, resulting in a net margin of 10.5%.
PETS - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, PetMed Express, Inc. reported a net income of -4.06M and revenue of 42.82M, resulting in a net margin of -9.5%.
Frequently Asked Questions
DGX and PETS have a correlation of 0.01, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
DGX has higher volatility (10.20%) compared to PETS (9.68%). In terms of maximum drawdown, DGX dropped -49.46% vs PETS's -98.29%.
DGX currently has the higher Sharpe Ratio (1.76 vs -0.39), 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.
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