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Observatory · observe first

Health Care Equipment

Health Care Equipment is gaining market weight. Lost weight for 1 consecutive month.

Historical time machine
Historical observation
20182026
Reversing downwardBroad

The gain is shared across much of the industry.

Universe weight
3.17%
$0.94T
12-month change
+1.20 pp
6-month change
-0.07 pp
3-month change
-0.27 pp
Company participation
50%
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+0.928 pp
Industry total+1.200 pp

The three largest same-direction contributors explain 52% 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 – Jan 2022 · market weight (%)

0.11.83.520182019202020212022

Relative performance

Industry return versus ACWI · no future data shown

10111813520182019202020212022

Is participation broad or concentrated?

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

Above their 3M universe-weight average43%
Above their 6M universe-weight average50%
Above their 12M universe-weight average71%
Top 5 share of current industry market cap66.6%

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+1.20 pp
Relative strength · 12M-6.7%
Price index return · 12M+6.0%
Earnings revisions · unavailable0.0
Allocation gained 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
Intuitive Surgical →
ISRG
Health Care EquipmentUnited States0.341%+0.271 pp+14.0%0.0
Abbott Laboratories →
ABT
Health Care EquipmentUnited States0.758%+0.233 pp+4.7%0.0
Stryker Corporation →
SYK
Health Care EquipmentUnited States0.315%+0.116 pp+13.4%0.0
Medtronic →
MDT
Health Care EquipmentUnited States0.468%+0.109 pp-5.0%0.0
Edwards Lifesciences →
EW
Health Care EquipmentUnited States0.229%+0.106 pp+32.2%0.0
Boston Scientific →
BSX
Health Care EquipmentUnited States0.206%+0.084 pp+21.0%0.0
Baxter International →
BAX
Health Care EquipmentUnited States0.144%+0.050 pp+12.8%0.0
Idexx Laboratories →
IDXX
Health Care EquipmentUnited States0.145%+0.047 pp+6.0%0.0
Becton Dickinson →
BDX
Health Care EquipmentUnited States0.186%+0.047 pp-1.6%0.0
ResMed| →
RMD
Health Care EquipmentUnited States0.112%+0.042 pp+14.2%0.0
Steris →
STE
Health Care EquipmentUnited States0.075%+0.037 pp+20.9%0.0
Revvity →
RVTY
Health Care EquipmentUnited States0.073%+0.034 pp+17.3%0.0
Dexcom →
DXCM
Health Care EquipmentUnited States0.035%+0.014 pp+14.8%0.0
Zimmer Biomet →
ZBH
Health Care EquipmentUnited States0.084%+0.010 pp-19.4%0.0
Underlying monthly industry observations
MonthWeight1M change3M change6M change12M changeRelative return · 12M
Jan 20223.172%-0.156 pp-0.268 pp-0.069 pp+1.200 pp-6.7%
Dec 20213.327%+0.108 pp+0.240 pp+0.170 pp-0.018 pp-2.0%
Nov 20213.219%-0.221 pp+0.131 pp+0.082 pp-0.138 pp-6.7%
Oct 20213.440%+0.353 pp+0.199 pp+0.201 pp-0.044 pp-5.2%
Sep 20213.087%-0.000 pp-0.070 pp+1.449 pp+3.083 pp-4.0%
Aug 20213.088%-0.153 pp-0.050 pp+1.421 pp+3.084 pp-2.6%
Jul 20213.241%+0.084 pp+0.001 pp+1.269 pp+3.237 pp-4.0%
Jun 20213.157%+0.020 pp+1.520 pp-0.188 pp+3.154 pp-4.6%
May 20213.137%-0.102 pp+1.471 pp-0.220 pp+3.134 pp-11.7%
Apr 20213.240%+1.602 pp+1.267 pp-0.245 pp-0.346 pp-10.1%
Mar 20211.638%-0.028 pp-1.707 pp+1.634 pp+1.635 pp-10.4%
Feb 20211.666%-0.306 pp-1.691 pp+1.662 pp+1.664 pp-1.7%
Jan 20211.972%-1.373 pp-1.512 pp+1.969 pp-1.404 pp-3.3%
Dec 20203.345%-0.012 pp+3.341 pp+3.341 pp-0.009 pp-1.8%
Nov 20203.357%-0.127 pp+3.353 pp+3.353 pp+0.056 pp-2.6%
Oct 20203.484%+3.480 pp+3.481 pp-0.101 pp+0.118 pp+0.5%
Sep 20200.004%-0.000 pp+0.000 pp+0.001 pp-3.416 pp-0.9%
Aug 20200.004%+0.000 pp+0.000 pp+0.001 pp-3.542 pp-5.1%
Jul 20200.004%+0.000 pp-3.582 pp-3.373 pp-3.388 pp+0.9%
Jun 20200.003%-0.000 pp+0.001 pp-3.351 pp-3.327 pp+0.1%
May 20200.004%-3.582 pp+0.001 pp-3.298 pp-3.292 pp+9.8%
Apr 20203.585%+3.582 pp+0.209 pp+0.219 pp+0.400 pp+17.6%
Mar 20200.003%+0.000 pp-3.351 pp-3.417 pp-3.374 pp+8.4%
Feb 20200.003%-3.374 pp-3.299 pp-3.543 pp-3.324 pp+2.0%
Jan 20203.376%+0.022 pp+0.010 pp-0.015 pp+1.557 pp+6.6%
Dec 20193.354%+0.053 pp-0.066 pp+0.024 pp+1.464 pp+1.4%
Nov 20193.301%-0.065 pp-0.245 pp+0.005 pp+1.424 pp+3.3%
Oct 20193.366%-0.054 pp-0.025 pp+0.181 pp+1.572 pp+9.7%
Sep 20193.420%-0.126 pp+0.089 pp+0.044 pp+1.557 pp+9.9%
Aug 20193.546%+0.154 pp+0.250 pp+0.219 pp+1.747 pp+18.5%
Jul 20193.391%+0.061 pp+0.206 pp+1.573 pp+0.279 pp+17.5%
Jun 20193.331%+0.035 pp-0.046 pp+1.441 pp+0.227 pp+15.4%
May 20193.296%+0.110 pp-0.031 pp+1.418 pp+0.231 pp+14.8%
Apr 20193.186%-0.191 pp+1.367 pp+1.391 pp+0.207 pp+13.0%
Mar 20193.376%+0.050 pp+1.487 pp+1.513 pp+0.453 pp+21.9%
Feb 20193.326%+1.508 pp+1.449 pp+1.528 pp+0.448 pp+21.7%
Jan 20191.819%-0.071 pp+0.024 pp-1.294 pp-1.008 pp+19.6%
Dec 20181.890%+0.012 pp+0.027 pp-1.214 pp-0.937 pp+23.7%
Nov 20181.878%+0.083 pp+0.079 pp-1.188 pp-0.950 pp+22.5%
Oct 20181.795%-0.069 pp-1.318 pp-1.184 pp-1.033 pp+16.4%
Sep 20181.863%+0.064 pp-1.241 pp-1.060 pp-0.964 pp+18.9%
Aug 20181.799%-1.314 pp-1.266 pp-1.079 pp-1.028 pp+13.9%
Jul 20183.113%+0.009 pp+0.134 pp+0.285 pp+0.285 pp+9.8%
Jun 20183.104%+0.039 pp+0.181 pp+0.277 pp+0.277 pp+8.3%
May 20183.065%+0.087 pp+0.187 pp+0.238 pp+0.238 pp+6.2%
Apr 20182.978%+0.055 pp+0.151 pp+0.151 pp+0.151 pp+2.4%
Mar 20182.923%+0.045 pp+0.096 pp+0.096 pp+0.096 pp+0.9%
Feb 20182.878%+0.051 pp+0.051 pp+0.051 pp+0.051 pp+0.0%
Jan 20182.827%+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.