Universe›Consumer Discretionary›Automobile Manufacturers
Observatory · observe first

Automobile Manufacturers

Automobile Manufacturers is losing market weight. Gained weight for 1 consecutive month.

Historical time machine
Historical observation
20182026
Reversing upwardConcentrated

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

Universe weight
0.52%
$0.09T
12-month change
-0.05 pp
6-month change
+0.23 pp
3-month change
+0.24 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

Company attribution
All other companies-0.010 pp
Industry total-0.051 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 – Apr 2019 · market weight (%)

0.30.40.620182019

Relative performance

Industry return versus ACWI · no future data shown

869710820182019

Is participation broad or concentrated?

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

Above their 3M universe-weight average50%
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-0.05 pp
Relative strength · 12M-0.5%
Price index return · 12M+5.3%
Earnings revisions · unavailable0.0
Allocation lost 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
Ford Motor Company →
F
Automobile ManufacturersUnited States0.217%-0.040 pp-0.8%0.0
General Motors →
GM
Automobile ManufacturersUnited States0.308%-0.010 pp+10.3%0.0
Underlying monthly industry observations
MonthWeight1M change3M change6M change12M changeRelative return · 12M
Apr 20190.525%+0.036 pp+0.235 pp+0.229 pp-0.051 pp-0.5%
Mar 20190.488%-0.024 pp+0.218 pp+0.227 pp-0.078 pp-6.0%
Feb 20190.512%+0.222 pp+0.218 pp+0.234 pp-0.056 pp-2.0%
Jan 20190.290%+0.019 pp-0.006 pp-0.240 pp-0.287 pp-1.4%
Dec 20180.271%-0.024 pp+0.010 pp-0.316 pp-0.306 pp-8.8%
Nov 20180.294%-0.001 pp+0.016 pp-0.332 pp-0.282 pp-1.6%
Oct 20180.296%+0.035 pp-0.235 pp-0.280 pp-0.281 pp-1.6%
Sep 20180.261%-0.017 pp-0.326 pp-0.305 pp-0.316 pp-15.0%
Aug 20180.278%-0.252 pp-0.348 pp-0.290 pp-0.299 pp-10.6%
Jul 20180.530%-0.057 pp-0.045 pp-0.047 pp-0.047 pp-5.1%
Jun 20180.587%-0.039 pp+0.021 pp+0.010 pp+0.010 pp+3.6%
May 20180.626%+0.051 pp+0.059 pp+0.049 pp+0.049 pp+9.3%
Apr 20180.576%+0.010 pp-0.001 pp-0.001 pp-0.001 pp-0.3%
Mar 20180.566%-0.002 pp-0.011 pp-0.011 pp-0.011 pp-1.8%
Feb 20180.568%-0.009 pp-0.009 pp-0.009 pp-0.009 pp-1.2%
Jan 20180.577%+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.