Observatory · observe first

Advertising

Advertising is losing market weight. Lost weight for 1 consecutive month.

Historical time machine
Historical observation
20182026
SlowingConcentrated

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

Universe weight
0.10%
$0.02T
12-month change
-0.01 pp
6-month change
+0.04 pp
3-month change
+0.00 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

Sub-industries
Company attribution
All other companies+0.000 pp
Industry total-0.008 pp

The three largest same-direction contributors explain 100% 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

Jan 2018 – Jun 2019 · market weight (%)

0.10.10.120182019

Relative performance

Industry return versus ACWI · no future data shown

9310411420182019

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 average100%
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-0.01 pp
Relative strength · 12M+4.9%
Price index return · 12M+11.1%
Earnings revisions · unavailable0.0
Allocation lost weight while relative performance rose. 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
Omnicom Group →
OMC
AdvertisingUnited States0.097%-0.008 pp+11.1%0.0
Underlying monthly industry observations
MonthWeight1M change3M change6M change12M changeRelative return · 12M
Jun 20190.097%-0.002 pp+0.003 pp+0.039 pp-0.008 pp+4.9%
May 20190.099%+0.001 pp+0.001 pp+0.042 pp-0.000 pp+12.2%
Apr 20190.098%+0.004 pp+0.041 pp+0.042 pp-0.005 pp+6.2%
Mar 20190.094%-0.004 pp+0.035 pp+0.045 pp-0.009 pp+1.1%
Feb 20190.098%+0.041 pp+0.041 pp+0.048 pp-0.007 pp+3.0%
Jan 20190.058%-0.001 pp+0.001 pp-0.033 pp-0.043 pp+13.1%
Dec 20180.059%+0.001 pp+0.010 pp-0.046 pp-0.042 pp+14.9%
Nov 20180.057%+0.001 pp+0.007 pp-0.042 pp-0.043 pp+11.1%
Oct 20180.056%+0.008 pp-0.034 pp-0.046 pp-0.044 pp+9.0%
Sep 20180.049%-0.002 pp-0.057 pp-0.054 pp-0.052 pp-7.7%
Aug 20180.050%-0.040 pp-0.049 pp-0.055 pp-0.051 pp-6.2%
Jul 20180.090%-0.015 pp-0.013 pp-0.011 pp-0.011 pp-6.2%
Jun 20180.105%+0.006 pp+0.003 pp+0.004 pp+0.004 pp+7.2%
May 20180.099%-0.003 pp-0.006 pp-0.001 pp-0.001 pp-0.1%
Apr 20180.103%+0.000 pp+0.002 pp+0.002 pp+0.002 pp+2.5%
Mar 20180.103%-0.003 pp+0.002 pp+0.002 pp+0.002 pp+1.6%
Feb 20180.105%+0.004 pp+0.004 pp+0.004 pp+0.004 pp+4.1%
Jan 20180.101%+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.