Observatory · observe first
Quest Diagnostics
DGX · United States · Health Care Services · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.042%
12M weight contribution
-0.032 pp
3M weight contribution
-0.036 pp
12M price return
+19.3%
Share of matched S&P 500 members
Monthly observations through Jan 2021
Company price index
A separate dimension from market allocation
Historical observations
Most recent 24 observations at or before the selected month
| Month | Market cap | Universe weight | 12M weight change | 12M return | Above 6M weight average |
|---|---|---|---|---|---|
| Jan 2021 | $17.4bn | 0.042% | -0.032 pp | +19.3% | No |
| Dec 2020 | $16.1bn | 0.065% | -0.006 pp | +14.1% | Yes |
| Nov 2020 | $16.7bn | 0.071% | -0.001 pp | +19.0% | Yes |
| Oct 2020 | $16.5bn | 0.078% | +0.007 pp | +23.4% | Yes |
| Sep 2020 | $15.4bn | 0.000% | -0.076 pp | +9.4% | No |
| Aug 2020 | $14.9bn | 0.000% | -0.075 pp | +11.1% | No |
| Jul 2020 | $17.1bn | 0.000% | -0.073 pp | +27.3% | No |
| Jun 2020 | $15.2bn | 0.000% | -0.074 pp | +14.5% | No |
| May 2020 | $15.8bn | 0.000% | -0.075 pp | +26.2% | No |
| Apr 2020 | $14.7bn | 0.082% | +0.010 pp | +16.9% | Yes |
| Mar 2020 | $10.7bn | 0.000% | -0.069 pp | -8.8% | No |
| Feb 2020 | $14.2bn | 0.000% | -0.067 pp | +25.1% | No |
| Jan 2020 | $14.9bn | 0.074% | +0.034 pp | +29.4% | Yes |
| Dec 2019 | $14.4bn | 0.071% | +0.030 pp | +31.1% | No |
| Nov 2019 | $14.4bn | 0.072% | +0.032 pp | +23.0% | No |
| Oct 2019 | $13.6bn | 0.071% | +0.028 pp | +10.0% | No |
| Sep 2019 | $14.4bn | 0.077% | +0.030 pp | +1.4% | Yes |
| Aug 2019 | $13.8bn | 0.075% | +0.026 pp | -4.9% | Yes |
| Jul 2019 | $13.7bn | 0.073% | -0.013 pp | -3.1% | Yes |
| Jun 2019 | $13.7bn | 0.074% | -0.017 pp | -5.4% | Yes |
| May 2019 | $12.9bn | 0.075% | -0.013 pp | -8.0% | Yes |
| Apr 2019 | $13.0bn | 0.072% | -0.012 pp | -2.7% | Yes |
| Mar 2019 | $12.1bn | 0.069% | -0.014 pp | -8.5% | Yes |
| Feb 2019 | $11.6bn | 0.067% | -0.016 pp | -14.3% | Yes |
Its weight is estimated market cap divided by the total estimated market cap of matched S&P 500 members for the month. This is not an official float-adjusted S&P index weight.