Universe›Health Care›Health Care Services
Observatory · observe first

Health Care Services

Health Care Services is gaining market weight. Gained weight for 2 consecutive months.

Historical time machine
Historical observation
20182026
Reversing downwardConcentrated

Most of this industry's gains came from a few companies.

Universe weight
0.96%
$0.27T
12-month change
+0.09 pp
6-month change
+0.00 pp
3-month change
-0.01 pp
Company participation
60%
above their 6M weight average

Where did the weight change come from?

12-month contribution in universe percentage points · contributions add to the industry change

Company attribution
Cigna →+0.122 pp
All other companies-0.029 pp
Industry total+0.093 pp

The three largest same-direction contributors explain 100% of gross gains. Opposing contributions can make an individual company’s change larger than the industry’s net change.

How has it moved through history?

Share of matched S&P 500 members

Jan 2018 – Dec 2022 · market weight (%)

0.00.51.020182019202020212022

Relative performance

Industry return versus ACWI · no future data shown

769611620182019202020212022

Is participation broad or concentrated?

Actual constituent counts at this date, not the legacy synthetic breadth proxy

Above their 3M universe-weight average80%
Above their 6M universe-weight average60%
Above their 12M universe-weight average40%
Top 5 share of current industry market cap100.0%

This is size concentration, not contribution to the 12-month change. The attribution above measures the latter.

Evidence can disagree

Independent dimensions · no combined score or bullish/bearish verdict

Allocation · 12M+0.09 pp
Relative strength · 12M+28.0%
Price index return · 12M+4.5%
Earnings revisions · unavailable0.0
Allocation gained weight while relative performance rose. At least half of constituents are above their 6M weight average. These observations need not agree.
Other evidence and availability

Valuation data: unavailable; shown as zero placeholder.

Attention data: unavailable; shown as zero placeholder.

Actual fund flows: unavailable. No ETF, mutual-fund or institutional flow feed is connected.

Volume / turnover: unavailable in this dataset.

Follow the contribution to individual companies

Sorted by absolute 12-month weight contribution, not investment merit

CompanySub-industryCountryUniverse weight12M contribution12M price returnRevisions
Cigna →
CI
Health Care ServicesUnited States0.366%+0.122 pp+46.7%0.0
Labcorp →
LH
Health Care ServicesUnited States0.065%-0.018 pp-24.4%0.0
DaVita →
DVA
Health Care ServicesUnited States0.024%-0.013 pp-34.4%0.0
CVS Health →
CVS
Health Care ServicesUnited States0.442%+0.006 pp-7.6%0.0
Quest Diagnostics →
DGX
Health Care ServicesUnited States0.064%-0.004 pp-7.8%0.0
Underlying monthly industry observations
MonthWeight1M change3M change6M change12M changeRelative return · 12M
Dec 20220.961%+0.022 pp-0.012 pp+0.000 pp+0.093 pp+28.0%
Nov 20220.939%+0.005 pp+0.026 pp+0.012 pp+0.153 pp+42.4%
Oct 20220.934%-0.040 pp+0.048 pp+0.027 pp+0.123 pp+44.9%
Sep 20220.973%+0.060 pp+0.013 pp+0.104 pp+0.154 pp+43.0%
Aug 20220.913%+0.028 pp-0.014 pp+0.009 pp+0.099 pp+33.6%
Jul 20220.885%-0.075 pp-0.021 pp-0.012 pp+0.055 pp+25.4%
Jun 20220.960%+0.033 pp+0.092 pp+0.092 pp+0.098 pp+27.0%
May 20220.927%+0.021 pp+0.023 pp+0.142 pp+0.011 pp+14.8%
Apr 20220.906%+0.037 pp+0.009 pp+0.095 pp+0.038 pp+18.2%
Mar 20220.869%-0.035 pp+0.001 pp+0.050 pp+0.411 pp+10.2%
Feb 20220.904%+0.007 pp+0.119 pp+0.090 pp+0.485 pp+22.9%
Jan 20220.898%+0.030 pp+0.087 pp+0.067 pp+0.366 pp+11.9%
Dec 20210.868%+0.082 pp+0.049 pp+0.005 pp+0.015 pp+14.5%
Nov 20210.785%-0.025 pp-0.029 pp-0.130 pp-0.106 pp-2.3%
Oct 20210.811%-0.008 pp-0.019 pp-0.058 pp-0.030 pp+5.3%
Sep 20210.819%+0.005 pp-0.044 pp+0.361 pp+0.818 pp+8.0%
Aug 20210.814%-0.016 pp-0.102 pp+0.395 pp+0.813 pp+7.2%
Jul 20210.830%-0.033 pp-0.038 pp+0.299 pp+0.829 pp+0.8%
Jun 20210.863%-0.053 pp+0.405 pp+0.009 pp+0.862 pp-4.6%
May 20210.916%+0.047 pp+0.496 pp+0.024 pp+0.915 pp-4.9%
Apr 20210.869%+0.411 pp+0.337 pp+0.028 pp-0.203 pp-10.9%
Mar 20210.458%+0.038 pp-0.396 pp+0.457 pp+0.457 pp-9.4%
Feb 20210.420%-0.112 pp-0.472 pp+0.419 pp+0.419 pp-8.7%
Jan 20210.531%-0.322 pp-0.309 pp+0.531 pp-0.455 pp-2.6%
Dec 20200.853%-0.039 pp+0.852 pp+0.852 pp-0.183 pp-11.4%
Nov 20200.892%+0.051 pp+0.891 pp+0.891 pp-0.169 pp-10.4%
Oct 20200.841%+0.840 pp+0.840 pp-0.231 pp-0.148 pp-7.8%
Sep 20200.001%-0.000 pp-0.000 pp+0.000 pp-0.939 pp-4.5%
Aug 20200.001%+0.000 pp-0.000 pp+0.000 pp-0.947 pp-4.7%
Jul 20200.001%-0.000 pp-1.071 pp-0.986 pp-0.930 pp+5.0%
Jun 20200.001%-0.000 pp+0.000 pp-1.035 pp-0.906 pp+16.9%
May 20200.001%-1.070 pp+0.000 pp-1.060 pp-0.919 pp+23.9%
Apr 20201.072%+1.071 pp+0.085 pp+0.083 pp+0.143 pp+26.3%
Mar 20200.001%+0.000 pp-1.035 pp-0.939 pp-0.948 pp+23.1%
Feb 20200.001%-0.986 pp-1.060 pp-0.947 pp-1.013 pp+4.5%
Jan 20200.986%-0.050 pp-0.003 pp+0.056 pp+0.656 pp-4.8%
Dec 20191.036%-0.025 pp+0.096 pp+0.129 pp+0.688 pp-5.7%
Nov 20191.061%+0.072 pp+0.113 pp+0.140 pp+0.671 pp-12.9%
Oct 20190.989%+0.049 pp+0.058 pp+0.061 pp+0.611 pp-17.7%
Sep 20190.940%-0.007 pp+0.033 pp-0.008 pp+0.551 pp-22.2%
Aug 20190.948%+0.017 pp+0.027 pp-0.066 pp+0.566 pp-19.7%
Jul 20190.931%+0.024 pp+0.003 pp+0.601 pp+0.299 pp-14.5%
Jun 20190.907%-0.014 pp-0.042 pp+0.558 pp+0.250 pp-20.0%
May 20190.921%-0.008 pp-0.094 pp+0.531 pp+0.275 pp-18.2%
Apr 20190.928%-0.020 pp+0.598 pp+0.550 pp+0.246 pp-22.4%
Mar 20190.949%-0.065 pp+0.600 pp+0.560 pp+0.317 pp-14.5%
Feb 20191.014%+0.684 pp+0.624 pp+0.632 pp+0.349 pp-13.4%
Jan 20190.330%-0.019 pp-0.048 pp-0.302 pp-0.376 pp-10.3%
Dec 20180.349%-0.041 pp-0.040 pp-0.308 pp-0.357 pp-6.0%
Nov 20180.390%+0.011 pp+0.008 pp-0.256 pp-0.316 pp+4.9%
Oct 20180.378%-0.010 pp-0.253 pp-0.303 pp-0.327 pp+1.4%
Sep 20180.389%+0.007 pp-0.268 pp-0.242 pp-0.317 pp+1.9%
Aug 20180.382%-0.250 pp-0.264 pp-0.283 pp-0.324 pp-0.6%
Jul 20180.632%-0.025 pp-0.050 pp-0.074 pp-0.074 pp-8.8%
Jun 20180.657%+0.011 pp+0.026 pp-0.049 pp-0.049 pp-6.5%
May 20180.646%-0.036 pp-0.019 pp-0.060 pp-0.060 pp-8.6%
Apr 20180.682%+0.051 pp-0.024 pp-0.024 pp-0.024 pp-4.5%
Mar 20180.631%-0.034 pp-0.074 pp-0.074 pp-0.074 pp-11.6%
Feb 20180.665%-0.041 pp-0.041 pp-0.041 pp-0.041 pp-6.1%
Jan 20180.706%+0.000 pp+0.000 pp+0.000 pp+0.000 pp+0.0%
How are these descriptive states defined?

Gaining / losing: 12-month weight change above +0.005pp / below −0.005pp. Direction and speed are separate dimensions, not mutually exclusive recommendations.

Accelerating / slowing: compare the most recent 3M change with the preceding 3M change. Accelerating means a positive change speeds up by >0.02pp. Slowing means the magnitude of movement declines by >0.02pp. A falling industry can also slow.

Reversing: the last two 3M changes have opposite signs, outside a ±0.005pp tolerance. Persistence counts consecutive same-direction monthly changes.

Broad / concentrated: company attribution, not a market-cap concentration shortcut. Concentrated means the three largest same-direction contributors account for ≥70% of gross same-direction changes; otherwise broad requires ≥60% of constituents moving with the industry. Other cases are mixed.

Weights use matched S&P 500 members’ market-cap estimates, based on SEC-reported shares available by each month-end and monthly closing prices. Companies without a matched price or share record are omitted, so the denominator is the matched sample rather than every index member. These are not official float-adjusted S&P weights. Flow is not measured.