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Observatory · observe first

Electronic Manufacturing Services

Electronic Manufacturing Services is gaining market weight. Lost weight for 1 consecutive month.

Historical time machine
Historical observation
20182026
Reversing downwardConcentrated

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

Universe weight
0.14%
$0.04T
12-month change
+0.06 pp
6-month change
-0.01 pp
3-month change
-0.03 pp
Company participation
0%
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+0.000 pp
Industry total+0.060 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 – Mar 2022 · market weight (%)

0.00.10.220182019202020212022

Relative performance

Industry return versus ACWI · no future data shown

769411120182019202020212022

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 average0%
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+0.06 pp
Relative strength · 12M-3.6%
Price index return · 12M+2.8%
Earnings revisions · unavailable0.0
Allocation gained weight while relative performance fell. Fewer than 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
TE Connectivity →
TEL
Electronic Manufacturing ServicesUnited States0.144%+0.060 pp+2.8%0.0
Underlying monthly industry observations
MonthWeight1M change3M change6M change12M changeRelative return · 12M
Mar 20220.144%-0.017 pp-0.025 pp-0.014 pp+0.060 pp-3.6%
Feb 20220.161%+0.004 pp-0.009 pp-0.004 pp+0.075 pp+3.1%
Jan 20220.157%-0.012 pp-0.003 pp-0.009 pp+0.061 pp+6.0%
Dec 20210.169%-0.001 pp+0.011 pp+0.011 pp+0.007 pp+13.9%
Nov 20210.170%+0.010 pp+0.005 pp+0.009 pp+0.010 pp+14.5%
Oct 20210.160%+0.002 pp-0.006 pp-0.001 pp+0.009 pp+11.9%
Sep 20210.158%-0.007 pp+0.000 pp+0.074 pp+0.158 pp+12.3%
Aug 20210.165%-0.001 pp+0.004 pp+0.079 pp+0.165 pp+22.8%
Jul 20210.166%+0.008 pp+0.005 pp+0.070 pp+0.166 pp+26.2%
Jun 20210.158%-0.003 pp+0.074 pp-0.004 pp+0.157 pp+21.0%
May 20210.161%-0.000 pp+0.075 pp+0.000 pp+0.160 pp+19.9%
Apr 20210.161%+0.077 pp+0.066 pp+0.010 pp+0.024 pp+27.2%
Mar 20210.084%-0.002 pp-0.079 pp+0.083 pp+0.083 pp+35.2%
Feb 20210.086%-0.009 pp-0.074 pp+0.086 pp+0.086 pp+23.0%
Jan 20210.095%-0.067 pp-0.056 pp+0.095 pp-0.057 pp+13.3%
Dec 20200.162%+0.002 pp+0.162 pp+0.162 pp+0.005 pp+10.8%
Nov 20200.160%+0.009 pp+0.160 pp+0.160 pp+0.004 pp+9.2%
Oct 20200.151%+0.151 pp+0.151 pp+0.014 pp-0.005 pp+5.0%
Sep 20200.000%+0.000 pp+0.000 pp+0.000 pp-0.166 pp-3.1%
Aug 20200.000%+0.000 pp+0.000 pp+0.000 pp-0.166 pp-7.2%
Jul 20200.000%-0.000 pp-0.137 pp-0.152 pp-0.165 pp-8.4%
Jun 20200.000%-0.000 pp+0.000 pp-0.157 pp-0.174 pp-14.8%
May 20200.000%-0.137 pp+0.000 pp-0.156 pp-0.165 pp-6.7%
Apr 20200.137%+0.137 pp-0.015 pp-0.019 pp-0.042 pp-17.0%
Mar 20200.000%-0.000 pp-0.157 pp-0.166 pp-0.157 pp-10.5%
Feb 20200.000%-0.152 pp-0.156 pp-0.167 pp-0.161 pp-1.2%
Jan 20200.152%-0.005 pp-0.005 pp-0.013 pp+0.061 pp+0.7%
Dec 20190.157%+0.001 pp-0.009 pp-0.017 pp+0.065 pp+2.2%
Nov 20190.156%-0.000 pp-0.010 pp-0.009 pp+0.069 pp+8.3%
Oct 20190.157%-0.010 pp-0.008 pp-0.023 pp+0.068 pp+7.6%
Sep 20190.166%-0.000 pp-0.008 pp+0.009 pp+0.069 pp+6.6%
Aug 20190.167%+0.001 pp+0.001 pp+0.005 pp+0.064 pp+1.7%
Jul 20190.165%-0.009 pp-0.014 pp+0.075 pp-0.025 pp-2.0%
Jun 20190.174%+0.009 pp+0.017 pp+0.081 pp-0.017 pp+2.5%
May 20190.165%-0.014 pp+0.004 pp+0.078 pp-0.033 pp-6.6%
Apr 20190.180%+0.022 pp+0.089 pp+0.090 pp-0.018 pp+0.6%
Mar 20190.157%-0.004 pp+0.064 pp+0.060 pp-0.058 pp-19.7%
Feb 20190.161%+0.071 pp+0.074 pp+0.058 pp-0.056 pp-18.4%
Jan 20190.090%-0.002 pp+0.001 pp-0.100 pp-0.115 pp-13.3%
Dec 20180.093%+0.005 pp-0.005 pp-0.099 pp-0.113 pp-12.5%
Nov 20180.088%-0.001 pp-0.015 pp-0.110 pp-0.118 pp-17.4%
Oct 20180.089%-0.009 pp-0.101 pp-0.108 pp-0.116 pp-18.3%
Sep 20180.098%-0.005 pp-0.094 pp-0.118 pp-0.108 pp-11.8%
Aug 20180.103%-0.087 pp-0.095 pp-0.114 pp-0.102 pp-7.5%
Jul 20180.190%-0.001 pp-0.007 pp-0.015 pp-0.015 pp-5.4%
Jun 20180.191%-0.006 pp-0.024 pp-0.014 pp-0.014 pp-6.1%
May 20180.198%+0.000 pp-0.019 pp-0.008 pp-0.008 pp-3.5%
Apr 20180.197%-0.018 pp-0.008 pp-0.008 pp-0.008 pp-4.9%
Mar 20180.215%-0.002 pp+0.010 pp+0.010 pp+0.010 pp+4.0%
Feb 20180.217%+0.012 pp+0.012 pp+0.012 pp+0.012 pp+5.7%
Jan 20180.205%+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.