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Observatory · observe first

Health Care Distributors

Health Care Distributors is losing market weight. Gained weight for 1 consecutive month.

Historical time machine
Historical observation
20182026
Reversing upwardConcentrated

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

Universe weight
0.34%
$0.15T
12-month change
-0.10 pp
6-month change
-0.10 pp
3-month change
+0.05 pp
Company participation
100%
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
All other companies-0.045 pp
Industry total-0.101 pp

The three largest same-direction contributors explain 92% of gross losses. 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

Nov 2019 – Oct 2024 · market weight (%)

0.00.20.420202021202220232024

Relative performance

Industry return versus ACWI · no future data shown

8212316520202021202220232024

Is participation broad or concentrated?

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

Above their 3M universe-weight average0%
Above their 6M universe-weight average100%
Above their 12M universe-weight average0%
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-0.10 pp
Relative strength · 12M-12.2%
Price index return · 12M+16.3%
Earnings revisions · unavailable0.0
Allocation lost weight while relative performance fell. 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
McKesson Corporation →
MCK
Health Care DistributorsUnited States0.153%-0.056 pp+10.5%0.0
Cencora →
COR
Health Care DistributorsUnited States0.106%-0.022 pp+24.3%0.0
Cardinal Health →
CAH
Health Care DistributorsUnited States0.062%-0.015 pp+21.6%0.0
Henry Schein →
HSIC
Health Care DistributorsUnited States0.021%-0.008 pp+8.1%0.0
Underlying monthly industry observations
MonthWeight1M change3M change6M change12M changeRelative return · 12M
Oct 20240.341%+0.005 pp+0.053 pp-0.100 pp-0.101 pp-12.2%
Sep 20240.337%-0.041 pp+0.050 pp-0.096 pp-0.086 pp-9.5%
Aug 20240.378%+0.090 pp+0.087 pp-0.059 pp-0.014 pp+7.3%
Jul 20240.288%+0.001 pp-0.153 pp-0.156 pp+0.014 pp+14.3%
Jun 20240.287%-0.004 pp-0.146 pp-0.123 pp-0.018 pp+1.6%
May 20240.291%-0.150 pp-0.146 pp-0.141 pp-0.001 pp+8.8%
Apr 20240.441%+0.008 pp-0.004 pp-0.002 pp+0.051 pp+17.8%
Mar 20240.432%-0.005 pp+0.022 pp+0.010 pp+0.053 pp+18.8%
Feb 20240.437%-0.007 pp+0.005 pp+0.045 pp+0.053 pp+18.5%
Jan 20240.445%+0.035 pp+0.002 pp+0.170 pp+0.033 pp+15.9%
Dec 20230.410%-0.022 pp-0.012 pp+0.106 pp-0.017 pp+1.0%
Nov 20230.432%-0.011 pp+0.040 pp+0.140 pp+0.020 pp+9.1%
Oct 20230.442%+0.020 pp+0.168 pp+0.053 pp+0.022 pp+5.7%
Sep 20230.422%+0.030 pp+0.118 pp+0.043 pp+0.014 pp+7.2%
Aug 20230.392%+0.118 pp+0.101 pp+0.009 pp-0.010 pp+2.1%
Jul 20230.275%-0.030 pp-0.115 pp-0.137 pp-0.094 pp+11.6%
Jun 20230.304%+0.013 pp-0.075 pp-0.122 pp-0.092 pp+18.8%
May 20230.292%-0.098 pp-0.092 pp-0.120 pp-0.095 pp+16.4%
Apr 20230.390%+0.010 pp-0.022 pp-0.031 pp+0.009 pp+15.3%
Mar 20230.380%-0.004 pp-0.047 pp-0.029 pp+0.023 pp+22.1%
Feb 20230.384%-0.028 pp-0.028 pp-0.019 pp+0.044 pp+31.5%
Jan 20230.412%-0.015 pp-0.009 pp+0.043 pp+0.101 pp+50.5%
Dec 20220.427%+0.015 pp+0.018 pp+0.030 pp+0.136 pp+69.5%
Nov 20220.411%-0.009 pp+0.009 pp+0.025 pp+0.141 pp+81.8%
Oct 20220.421%+0.012 pp+0.052 pp+0.040 pp+0.147 pp+91.6%
Sep 20220.409%+0.007 pp+0.013 pp+0.052 pp+0.126 pp+72.5%
Aug 20220.402%+0.033 pp+0.016 pp+0.063 pp+0.125 pp+72.5%
Jul 20220.369%-0.027 pp-0.012 pp+0.058 pp+0.074 pp+48.2%
Jun 20220.396%+0.010 pp+0.040 pp+0.105 pp+0.111 pp+58.7%
May 20220.387%+0.006 pp+0.047 pp+0.116 pp+0.097 pp+51.9%
Apr 20220.380%+0.024 pp+0.069 pp+0.106 pp+0.081 pp+43.1%
Mar 20220.356%+0.017 pp+0.065 pp+0.073 pp+0.194 pp+26.6%
Feb 20220.339%+0.028 pp+0.069 pp+0.062 pp+0.196 pp+34.7%
Jan 20220.311%+0.020 pp+0.037 pp+0.017 pp+0.133 pp+15.2%
Dec 20210.291%+0.021 pp+0.008 pp+0.006 pp-0.005 pp+10.3%
Nov 20210.271%-0.004 pp-0.006 pp-0.020 pp-0.049 pp-6.1%
Oct 20210.274%-0.009 pp-0.020 pp-0.025 pp-0.038 pp-4.9%
Sep 20210.283%+0.006 pp-0.002 pp+0.121 pp+0.283 pp+0.7%
Aug 20210.277%-0.018 pp-0.013 pp+0.134 pp+0.276 pp-2.3%
Jul 20210.294%+0.009 pp-0.005 pp+0.116 pp+0.294 pp-5.1%
Jun 20210.285%-0.005 pp+0.123 pp-0.011 pp+0.285 pp-12.6%
May 20210.290%-0.009 pp+0.147 pp-0.029 pp+0.290 pp-14.7%
Apr 20210.299%+0.137 pp+0.121 pp-0.013 pp-0.068 pp-7.9%
Mar 20210.162%+0.019 pp-0.134 pp+0.162 pp+0.162 pp-9.1%
Feb 20210.143%-0.035 pp-0.176 pp+0.143 pp+0.143 pp-10.4%
Jan 20210.178%-0.118 pp-0.134 pp+0.178 pp-0.159 pp+0.3%
Dec 20200.296%-0.023 pp+0.296 pp+0.296 pp-0.033 pp+1.8%
Nov 20200.319%+0.007 pp+0.319 pp+0.319 pp-0.035 pp+0.8%
Oct 20200.312%+0.312 pp+0.312 pp-0.055 pp-0.030 pp+4.1%
Sep 20200.000%-0.000 pp-0.000 pp+0.000 pp-0.350 pp-0.1%
Aug 20200.000%+0.000 pp-0.000 pp+0.000 pp-0.352 pp+0.9%
Jul 20200.000%-0.000 pp-0.367 pp-0.337 pp-0.363 pp+7.6%
Jun 20200.000%-0.000 pp+0.000 pp-0.328 pp-0.366 pp+11.4%
May 20200.000%-0.367 pp+0.000 pp-0.354 pp-0.359 pp+19.9%
Apr 20200.368%+0.367 pp+0.030 pp+0.025 pp+0.017 pp+20.4%
Mar 20200.000%+0.000 pp-0.328 pp-0.350 pp-0.360 pp+23.7%
Feb 20200.000%-0.337 pp-0.354 pp-0.352 pp-0.389 pp+2.6%
Jan 20200.337%+0.009 pp-0.005 pp-0.026 pp+0.119 pp-3.9%
Dec 20190.329%-0.026 pp-0.021 pp-0.037 pp+0.114 pp-4.3%
Nov 20190.355%+0.012 pp+0.003 pp-0.005 pp+0.121 pp-4.5%
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.