Independent Investment Research

Following the capital behind the AI build-out.

Kirihene & Pullen publishes independent, falsifiable research on how the world's largest infrastructure programme is being financed — from data-centre credit and hyperscaler capex to the grids, transformers and commodities underneath it.

The Notes

Research with a view you can test

Every note takes a position that can be proven wrong. This list updates automatically when we publish — click any note to read it here.

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Coverage Universe

One build-out, seven lenses

The AI capex cycle touches nearly every corner of the capital markets. Select a theme to see how we approach it.

    The Firm

    Two analysts, one standard

    We write to be held accountable — public views, stated assumptions, primary sources.

    K

    Tehan Kirihene

    Co-Founder & Analyst

    Tehan oversees fundamental valuation and fixed income research, leveraging a strong background in corporate finance and M&A strategy to analyze complex market structures. His current thematic focus examines the energy transition and the AI power supply chain—specifically generation, deliverability, and grid transmission—delivering institutional-grade structural insights. Tehan studied Economics and Finance at the University of Warwick and the University of Exeter, and is a CFA candidate.

    P

    Josh Pullen

    Co-Founder & Analyst

    Josh directs AI and technology coverage, bringing rigorous expertise in fundamental equity research and multi-asset portfolio strategy. His current thematic work leads the demand-side analysis of the AI trade—separating committed data-center load from announced intentions, connecting hyperscaler capex plans to broader market structures, and co-authoring the ERCOT series. Having previously founded and managed an independent AI-focused investment fund, Josh studied Business, Management, and Finance at the University of Exeter, and is a CFA candidate.

    How we work
    I.

    Primary sources first

    ERCOT constraint reports, market-monitor filings, Lazard cost data, company order books — we build from the documents, not the headlines.

    II.

    Falsifiable views

    Each note states a position and the evidence that would change our mind. If we're wrong, it will be visible — that's the point.

    III.

    Follow the capital

    The question behind every note: where does money need to flow, through which instruments, and who bears the risk when it doesn't?

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