← all weeksWeek of 16 May 2026
Arithmos · Index of the Week

Defence ex-Arms 20

Twenty defence and aerospace names with no exposure to cluster munitions, nuclear delivery systems or anti-personnel mines, weighted by 3-year backlog growth.

Why it won

Defence ETFs almost always pull in the controversial-weapons primes. This index keeps the budget tailwind exposure (ground vehicles, radar, propulsion, MRO, ISR, satellite comms) and strips out the names blocked by most ESG mandates. That makes it usable inside pensions and family-office sleeves that would otherwise have to skip the theme.

The prompt

I want a defence and aerospace index without cluster munitions, anti-personnel mines, biological weapons or nuclear delivery systems. Focus on Western primes and tier-1 suppliers. 20 names, weighted by 3-year backlog growth, max 8% per name.

Methodology

  • Universe: developed-market listed defence, aerospace and dual-use suppliers with backlog disclosure.
  • Controversial weapons exclusion: cluster munitions, anti-personnel mines, biological, chemical and nuclear delivery systems per ICRC and Norwegian SWF lists.
  • Inclusion themes: ground vehicles, radar, ISR, satellite comms, propulsion, MRO, training systems and cyber-defence.
  • Weighting: 3-year contracted backlog CAGR, capped at 8% per name, floor of 1%.
  • Rebalance semi-annually in April and October when budget cycles are visible.

Backtest

CAGR21.4%
Vol19.8%
Sharpe0.97
Max DD-18.6%
Period: May 2021 to May 2026 (5Y)
3-year backtest beats SPY by 8.1% annualised at materially higher volatility, mostly driven by European primes since 2022.

Figures are illustrative for editorial purposes. Past performance does not guarantee future results.

Holdings

TickerNameWeight
RTXRTX Corporation8.0%
GDGeneral Dynamics8.0%
LDO.MILeonardo7.0%
BA.LBAE Systems8.0%
RHM.DERheinmetall8.0%
HIIHuntington Ingalls Industries6.0%
TXTTextron5.0%
HO.PAThales7.0%
SAAB-B.STSaab AB6.0%
HEIHEICO4.0%
TDGTransDigm Group5.0%
HWMHowmet Aerospace5.0%
CWCurtiss-Wright4.0%
MRCYMercury Systems3.0%
KTOSKratos Defense & Security3.0%
AVAVAeroVironment3.0%
ESLTElbit Systems3.0%
PLTRPalantir Technologies4.0%
MOG-AMoog Inc2.0%
AJRDL3Harris Technologies1.0%

Risks

  • Heavy exposure to government procurement cycles and political headline risk.
  • European primes carry FX translation risk for USD-reporting investors.
  • Backlog growth as a weight signal is sticky on the way up and brutal on the way down.

Earlier weeks

Arithmos · investment research & data tool · not investment advice · past performance does not guarantee future results.
Investment research & data tool · not investment advice · not a regulated broker or advisor · past performance does not guarantee future results.