Insights
Clear thinking on markets, behaviour, and AI.
The Portfolio Thinking journal — weekly market briefs, deep dives, and behaviourally aware commentary for financial professionals. Published on Substack.
The Weekly Markets Brief - 6th July 2026
Are we asking the wrong question about the chip rally
Read on Substack →The Weekly Markets Brief - 29th June 2026
The AI Boom Has Started Sending Its Bills
Read on Substack →The Weekly Markets Brief - 22nd June 2026
Are You Pricing the Asset or the Story?
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SpaceX: the price of faith in Elon Musk
The shares have risen more than 40% since launch on Friday. What has changed?
Read on Substack →The Weekly Markets Brief 15th June 2026
Should the Index Buy SpaceX on Your Behalf?
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Too much of a good thing
Why maximising returns and serving investors are not the same job
Read on Substack →The Weekly Markets Brief - 8th June 2026
Has Technology Stopped Being a Capital-Light Business
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SpaceX: what must you believe?
A listing this large and this visible cannot be ignored, even by those who never choose to own it. The discipline is not to answer the valuation question, but to ask a better one.
Read on Substack →The Weekly Markets Brief - 1st June 2026
Are Investors Still Being Paid to Take Risk?
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There is no 'Best Portfolio'
Why Preparation Matters More Than Prediction
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The Weekly Markets Brief - 25th May 2026
Are All Earnings Created Equal?
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What to Expect from Fixed Income
My son recently described a Dragons rugby match as one for the purists: full of fascination for the dedicated supporter, but unlikely to quicken the pulse of a casual one.
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