03 / Portfolio construction / IPS
AI–Energy Nexus
A Treynor–Black active overlay on ACWI using seven grid and energy-infrastructure names, translated into a client-specific capital allocation and monitoring dashboard, and governed by an Investment Policy Statement.
Results · try the model
55.69% risky sleeve · 44.31% TLT/T-Bill buffer · beta 1.274 · IPS: 30-year horizon, 55 / 100 risk score, quarterly review
Illustrative, from the original model.
01 / The question
How much active risk belongs in a client portfolio?
The portfolio starts with a view on the AI and electrification build-out, then makes the risk budget explicit. Seven grid and energy-infrastructure names form the active sleeve; the risk-free buffer keeps the complete portfolio aligned with the client’s tolerance.
02 / What the model does
Moves from security selection to portfolio behavior.
Treynor–Black alpha, beta, residual risk, correlations, capital allocation, and monitoring metrics are brought into one framework so the portfolio can be reviewed as a system rather than a list of tickers.
03 / Component: Investment Policy Statement
The mandate that governs the allocation.
An Investment Policy Statement is the governance layer between a client conversation and a portfolio. It defines objectives, constraints, allocation rules, monitoring thresholds, and the cadence for deciding whether the portfolio still fits the mandate. Its 55 / 100 risk score is the same one the ACWI model allocates against.
The ACWI model supplies the return, risk, beta, and sleeve-level measures; the IPS turns those measures into a monitoring dashboard and an explicit quarterly review protocol. The useful output is not a static allocation but a shared operating agreement for what gets reviewed, when it gets reviewed, and which changes require a decision.