Health Care Services
Health Care Services is losing market weight. Lost weight for 4 consecutive months.
Most of this industry's losses 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 88% 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
Apr 2021 – Mar 2026 · 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 |
|---|---|---|---|---|---|---|
| Cigna → CI | Health Care Services | United States | 0.102% | -0.111 pp | -17.2% | 0.0 |
| CVS Health → CVS | Health Care Services | United States | 0.133% | -0.070 pp | +10.1% | 0.0 |
| Labcorp → LH | Health Care Services | United States | 0.032% | -0.014 pp | +15.9% | 0.0 |
| DaVita → DVA | Health Care Services | United States | 0.015% | -0.014 pp | +0.5% | 0.0 |
| Quest Diagnostics → DGX | Health Care Services | United States | 0.031% | -0.013 pp | +18.0% | 0.0 |
Underlying monthly industry observations
| Month | Weight | 1M change | 3M change | 6M change | 12M change | Relative return · 12M |
|---|---|---|---|---|---|---|
| Mar 2026 | 0.314% | -0.010 pp | -0.122 pp | -0.141 pp | -0.223 pp | -17.3% |
| Feb 2026 | 0.323% | -0.095 pp | -0.124 pp | -0.146 pp | -0.167 pp | -9.3% |
| Jan 2026 | 0.419% | -0.017 pp | +0.000 pp | -0.006 pp | -0.040 pp | -9.0% |
| Dec 2025 | 0.436% | -0.012 pp | -0.019 pp | -0.057 pp | +0.024 pp | +4.9% |
| Nov 2025 | 0.448% | +0.029 pp | -0.022 pp | -0.042 pp | -0.041 pp | -8.6% |
| Oct 2025 | 0.418% | -0.037 pp | -0.006 pp | -0.131 pp | -0.067 pp | -11.7% |
| Sep 2025 | 0.455% | -0.014 pp | -0.038 pp | -0.082 pp | -0.071 pp | -10.0% |
| Aug 2025 | 0.469% | +0.045 pp | -0.020 pp | -0.021 pp | -0.069 pp | -7.8% |
| Jul 2025 | 0.424% | -0.068 pp | -0.124 pp | -0.035 pp | +0.029 pp | -16.7% |
| Jun 2025 | 0.492% | +0.003 pp | -0.044 pp | +0.081 pp | +0.094 pp | -2.3% |
| May 2025 | 0.490% | -0.059 pp | -0.001 pp | +0.001 pp | +0.073 pp | -7.3% |
| Apr 2025 | 0.549% | +0.012 pp | +0.090 pp | +0.064 pp | -0.129 pp | -7.5% |
| Mar 2025 | 0.536% | +0.046 pp | +0.125 pp | +0.011 pp | -0.162 pp | -11.4% |
| Feb 2025 | 0.491% | +0.032 pp | +0.003 pp | -0.047 pp | -0.183 pp | -14.1% |
| Jan 2025 | 0.459% | +0.047 pp | -0.026 pp | +0.063 pp | -0.216 pp | -19.7% |
| Dec 2024 | 0.412% | -0.076 pp | -0.114 pp | +0.013 pp | -0.285 pp | -29.5% |
| Nov 2024 | 0.488% | +0.003 pp | -0.050 pp | +0.072 pp | -0.159 pp | -10.1% |
| Oct 2024 | 0.485% | -0.040 pp | +0.089 pp | -0.193 pp | -0.259 pp | -23.8% |
| Sep 2024 | 0.526% | -0.012 pp | +0.127 pp | -0.173 pp | -0.191 pp | -14.6% |
| Aug 2024 | 0.538% | +0.142 pp | +0.121 pp | -0.135 pp | -0.125 pp | -7.3% |
| Jul 2024 | 0.396% | -0.003 pp | -0.282 pp | -0.279 pp | -0.098 pp | -11.8% |
| Jun 2024 | 0.398% | -0.018 pp | -0.300 pp | -0.298 pp | -0.098 pp | -12.3% |
| May 2024 | 0.416% | -0.262 pp | -0.257 pp | -0.230 pp | -0.078 pp | -6.9% |
| Apr 2024 | 0.678% | -0.020 pp | +0.003 pp | -0.066 pp | -0.032 pp | -0.6% |
| Mar 2024 | 0.698% | +0.025 pp | +0.002 pp | -0.018 pp | -0.025 pp | +0.8% |
| Feb 2024 | 0.673% | -0.001 pp | +0.026 pp | +0.010 pp | -0.153 pp | -15.3% |
| Jan 2024 | 0.675% | -0.022 pp | -0.069 pp | +0.181 pp | -0.202 pp | -18.1% |
| Dec 2023 | 0.697% | +0.050 pp | -0.020 pp | +0.200 pp | -0.264 pp | -24.4% |
| Nov 2023 | 0.647% | -0.097 pp | -0.016 pp | +0.153 pp | -0.292 pp | -29.0% |
| Oct 2023 | 0.744% | +0.028 pp | +0.250 pp | +0.033 pp | -0.190 pp | -21.1% |
| Sep 2023 | 0.716% | +0.053 pp | +0.219 pp | -0.007 pp | -0.257 pp | -24.9% |
| Aug 2023 | 0.663% | +0.169 pp | +0.169 pp | -0.164 pp | -0.251 pp | -25.4% |
| Jul 2023 | 0.494% | -0.003 pp | -0.217 pp | -0.383 pp | -0.392 pp | -16.9% |
| Jun 2023 | 0.497% | +0.003 pp | -0.226 pp | -0.464 pp | -0.463 pp | -20.4% |
| May 2023 | 0.494% | -0.216 pp | -0.332 pp | -0.445 pp | -0.433 pp | -18.2% |
| Apr 2023 | 0.710% | -0.012 pp | -0.167 pp | -0.223 pp | -0.196 pp | -12.7% |
| Mar 2023 | 0.723% | -0.104 pp | -0.238 pp | -0.250 pp | -0.146 pp | -5.6% |
| Feb 2023 | 0.826% | -0.051 pp | -0.113 pp | -0.087 pp | -0.078 pp | +5.1% |
| Jan 2023 | 0.877% | -0.084 pp | -0.057 pp | -0.008 pp | -0.021 pp | +11.1% |
| Dec 2022 | 0.961% | +0.022 pp | -0.012 pp | +0.000 pp | +0.093 pp | +28.0% |
| Nov 2022 | 0.939% | +0.005 pp | +0.026 pp | +0.012 pp | +0.153 pp | +42.4% |
| Oct 2022 | 0.934% | -0.040 pp | +0.048 pp | +0.027 pp | +0.123 pp | +44.9% |
| Sep 2022 | 0.973% | +0.060 pp | +0.013 pp | +0.104 pp | +0.154 pp | +43.0% |
| Aug 2022 | 0.913% | +0.028 pp | -0.014 pp | +0.009 pp | +0.099 pp | +33.6% |
| Jul 2022 | 0.885% | -0.075 pp | -0.021 pp | -0.012 pp | +0.055 pp | +25.4% |
| Jun 2022 | 0.960% | +0.033 pp | +0.092 pp | +0.092 pp | +0.098 pp | +27.0% |
| May 2022 | 0.927% | +0.021 pp | +0.023 pp | +0.142 pp | +0.011 pp | +14.8% |
| Apr 2022 | 0.906% | +0.037 pp | +0.009 pp | +0.095 pp | +0.038 pp | +18.2% |
| Mar 2022 | 0.869% | -0.035 pp | +0.001 pp | +0.050 pp | +0.411 pp | +10.2% |
| Feb 2022 | 0.904% | +0.007 pp | +0.119 pp | +0.090 pp | +0.485 pp | +22.9% |
| Jan 2022 | 0.898% | +0.030 pp | +0.087 pp | +0.067 pp | +0.366 pp | +11.9% |
| Dec 2021 | 0.868% | +0.082 pp | +0.049 pp | +0.005 pp | +0.015 pp | +14.5% |
| Nov 2021 | 0.785% | -0.025 pp | -0.029 pp | -0.130 pp | -0.106 pp | -2.3% |
| Oct 2021 | 0.811% | -0.008 pp | -0.019 pp | -0.058 pp | -0.030 pp | +5.3% |
| Sep 2021 | 0.819% | +0.005 pp | -0.044 pp | +0.361 pp | +0.818 pp | +8.0% |
| Aug 2021 | 0.814% | -0.016 pp | -0.102 pp | +0.395 pp | +0.813 pp | +7.2% |
| Jul 2021 | 0.830% | -0.033 pp | -0.038 pp | +0.299 pp | +0.829 pp | +0.8% |
| Jun 2021 | 0.863% | -0.053 pp | +0.405 pp | +0.009 pp | +0.862 pp | -4.6% |
| May 2021 | 0.916% | +0.047 pp | +0.496 pp | +0.024 pp | +0.915 pp | -4.9% |
| Apr 2021 | 0.869% | +0.411 pp | +0.337 pp | +0.028 pp | -0.203 pp | -10.9% |
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.