Universe›Industrials›Aerospace & Defense
Observatory · observe first

Aerospace & Defense

Aerospace & Defense is losing market weight. Lost weight for 3 consecutive months.

Historical time machine
Historical observation
20182026
Declining fasterConcentrated

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

Universe weight
6.48%
$1.11T
12-month change
-0.60 pp
6-month change
-0.60 pp
3-month change
-0.34 pp
Company participation
40%
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-0.075 pp
Industry total-0.597 pp

The three largest same-direction contributors explain 93% 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 – Jul 2018 · market weight (%)

6.56.87.12018

Relative performance

Industry return versus ACWI · no future data shown

94971002018

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 average40%
Above their 12M universe-weight average0%
Top 5 share of current industry market cap89.3%

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-0.60 pp
Relative strength · 12M-6.0%
Price index return · 12M-8.6%
Earnings revisions · unavailable0.0
Allocation lost 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
GE Aerospace →
GE
Aerospace & DefenseUnited States3.311%-0.522 pp-14.3%0.0
Lockheed Martin →
LMT
Aerospace & DefenseUnited States0.542%-0.039 pp-7.0%0.0
General Dynamics →
GD
Aerospace & DefenseUnited States0.345%-0.034 pp-9.4%0.0
Northrop Grumman →
NOC
Aerospace & DefenseUnited States0.305%-0.033 pp-11.1%0.0
TransDigm Group →
TDG
Aerospace & DefenseUnited States0.115%+0.021 pp+18.5%0.0
Textron →
TXT
Aerospace & DefenseUnited States0.099%+0.011 pp+16.4%0.0
Boeing →
BA
Aerospace & DefenseUnited States1.194%-0.010 pp+1.5%0.0
L3Harris →
LHX
Aerospace & DefenseUnited States0.114%+0.006 pp+4.3%0.0
RTX Corporation →
RTX
Aerospace & DefenseUnited States0.399%+0.003 pp-0.5%0.0
Huntington Ingalls Industries →
HII
Aerospace & DefenseUnited States0.060%-0.001 pp-1.3%0.0
Underlying monthly industry observations
MonthWeight1M change3M change6M change12M changeRelative return · 12M
Jul 20186.485%-0.068 pp-0.336 pp-0.597 pp-0.597 pp-6.0%
Jun 20186.553%-0.262 pp-0.210 pp-0.528 pp-0.528 pp-6.2%
May 20186.815%-0.006 pp-0.117 pp-0.267 pp-0.267 pp-3.5%
Apr 20186.821%+0.058 pp-0.260 pp-0.260 pp-0.260 pp-4.3%
Mar 20186.762%-0.170 pp-0.319 pp-0.319 pp-0.319 pp-4.8%
Feb 20186.932%-0.149 pp-0.149 pp-0.149 pp-0.149 pp-1.7%
Jan 20187.081%+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.