Health Care Supplies
Health Care Supplies is gaining market weight. Lost weight for 1 consecutive month.
Most of this industry's gains came from a few companies.
Where did the weight change come from?
12-month contribution in universe percentage points · contributions add to the industry change
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 – May 2021 · market weight (%)
Relative performance
Industry return versus ACWI · no future data shown
Is participation broad or concentrated?
Actual constituent counts at this date, not the legacy synthetic breadth proxy
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
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
| Company | Sub-industry | Country | Universe weight | 12M contribution | 12M price return | Revisions |
|---|---|---|---|---|---|---|
| Align Technology → ALGN | Health Care Supplies | United States | 0.167% | +0.167 pp | +140.3% | 0.0 |
| West Pharmaceutical Services → WST | Health Care Supplies | United States | 0.092% | +0.092 pp | +61.2% | 0.0 |
| Cooper Companies (The) → COO | Health Care Supplies | United States | 0.017% | +0.017 pp | +24.1% | 0.0 |
Underlying monthly industry observations
| Month | Weight | 1M change | 3M change | 6M change | 12M change | Relative return · 12M |
|---|---|---|---|---|---|---|
| May 2021 | 0.277% | -0.000 pp | +0.136 pp | +0.010 pp | +0.276 pp | +38.4% |
| Apr 2021 | 0.277% | +0.143 pp | +0.114 pp | +0.003 pp | +0.161 pp | +50.3% |
| Mar 2021 | 0.134% | -0.007 pp | -0.140 pp | +0.134 pp | +0.134 pp | +52.4% |
| Feb 2021 | 0.141% | -0.022 pp | -0.126 pp | +0.140 pp | +0.141 pp | +50.2% |
| Jan 2021 | 0.163% | -0.110 pp | -0.111 pp | +0.163 pp | +0.042 pp | +39.1% |
| Dec 2020 | 0.273% | +0.007 pp | +0.273 pp | +0.273 pp | +0.146 pp | +32.0% |
| Nov 2020 | 0.267% | -0.008 pp | +0.266 pp | +0.266 pp | +0.137 pp | +24.5% |
| Oct 2020 | 0.274% | +0.274 pp | +0.274 pp | +0.158 pp | +0.152 pp | +37.6% |
| Sep 2020 | 0.000% | +0.000 pp | +0.000 pp | +0.000 pp | -0.096 pp | +49.9% |
| Aug 2020 | 0.000% | +0.000 pp | +0.000 pp | +0.000 pp | -0.100 pp | +34.1% |
| Jul 2020 | 0.000% | -0.000 pp | -0.116 pp | -0.121 pp | -0.111 pp | +23.8% |
| Jun 2020 | 0.000% | +0.000 pp | +0.000 pp | -0.127 pp | -0.140 pp | -5.7% |
| May 2020 | 0.000% | -0.116 pp | +0.000 pp | -0.129 pp | -0.154 pp | -15.8% |
| Apr 2020 | 0.116% | +0.116 pp | -0.005 pp | -0.006 pp | -0.049 pp | -25.9% |
| Mar 2020 | 0.000% | +0.000 pp | -0.127 pp | -0.096 pp | -0.152 pp | -26.2% |
| Feb 2020 | 0.000% | -0.121 pp | -0.130 pp | -0.100 pp | -0.140 pp | -15.0% |
| Jan 2020 | 0.121% | -0.006 pp | -0.001 pp | +0.010 pp | +0.044 pp | -7.9% |
| Dec 2019 | 0.127% | -0.002 pp | +0.031 pp | -0.013 pp | +0.056 pp | +4.4% |
| Nov 2019 | 0.130% | +0.007 pp | +0.029 pp | -0.024 pp | +0.057 pp | +5.1% |
| Oct 2019 | 0.122% | +0.026 pp | +0.011 pp | -0.042 pp | +0.051 pp | +1.0% |
| Sep 2019 | 0.096% | -0.004 pp | -0.044 pp | -0.055 pp | -0.015 pp | -48.6% |
| Aug 2019 | 0.100% | -0.011 pp | -0.054 pp | -0.040 pp | -0.010 pp | -45.8% |
| Jul 2019 | 0.111% | -0.029 pp | -0.053 pp | +0.034 pp | -0.074 pp | -36.1% |
| Jun 2019 | 0.141% | -0.013 pp | -0.011 pp | +0.069 pp | -0.043 pp | -18.8% |
| May 2019 | 0.154% | -0.011 pp | +0.013 pp | +0.081 pp | -0.024 pp | -9.1% |
| Apr 2019 | 0.165% | +0.013 pp | +0.088 pp | +0.094 pp | +0.024 pp | +22.4% |
| Mar 2019 | 0.152% | +0.011 pp | +0.081 pp | +0.041 pp | +0.011 pp | +12.1% |
| Feb 2019 | 0.140% | +0.063 pp | +0.068 pp | +0.030 pp | -0.002 pp | +2.0% |
| Jan 2019 | 0.077% | +0.006 pp | +0.006 pp | -0.108 pp | -0.060 pp | +4.8% |
| Dec 2018 | 0.071% | -0.001 pp | -0.040 pp | -0.113 pp | -0.066 pp | -3.5% |
| Nov 2018 | 0.072% | +0.001 pp | -0.038 pp | -0.106 pp | -0.064 pp | -1.8% |
| Oct 2018 | 0.071% | -0.040 pp | -0.114 pp | -0.069 pp | -0.066 pp | -4.5% |
| Sep 2018 | 0.111% | +0.001 pp | -0.073 pp | -0.030 pp | -0.026 pp | +47.0% |
| Aug 2018 | 0.110% | -0.075 pp | -0.068 pp | -0.033 pp | -0.027 pp | +45.1% |
| Jul 2018 | 0.185% | +0.001 pp | +0.045 pp | +0.049 pp | +0.049 pp | +36.2% |
| Jun 2018 | 0.184% | +0.006 pp | +0.043 pp | +0.047 pp | +0.047 pp | +33.8% |
| May 2018 | 0.178% | +0.038 pp | +0.035 pp | +0.041 pp | +0.041 pp | +29.0% |
| Apr 2018 | 0.140% | -0.000 pp | +0.003 pp | +0.003 pp | +0.003 pp | +0.7% |
| Mar 2018 | 0.141% | -0.002 pp | +0.004 pp | +0.004 pp | +0.004 pp | +1.6% |
| Feb 2018 | 0.143% | +0.006 pp | +0.006 pp | +0.006 pp | +0.006 pp | +4.1% |
| Jan 2018 | 0.137% | +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.