Dear second-level thinkers,
Ashtead Technology has not been the investment I hoped it would be when I first covered it in June of last year. My cost basis is 393p. The stock closed the week at 347p. That leaves me around 12% underwater, which is uncomfortable but hardly unfamiliar territory, because the shares dipped below 300p in late 2025 before staging a recovery that took them above 530p by May of this year.
From there it has been all downhill. The bulk of the damage arrived on Thursday this week, when the company issued a profit warning that knocked more than 16% off the share price in a single session, with another 3% coming off on Friday for good measure.
If you owned this at the May highs, you have watched roughly a third of the position evaporate in three months.
And yet I am completely at peace with this one.
That may sound like the kind of thing an investor says when he cannot bring himself to admit a mistake, so let me be clear about what I mean. Being at peace does not mean being unbothered by the numbers. The warning contained information that matters, and some of it cuts against assumptions I made explicitly in the original write-up.
Deep Dive: Ashtead Technology ($AT)
Every now and then, a stock gets punished not because of deteriorating fundamentals, but because the market simply doesn’t know what to do with it. Ashtead Technology feels like one of those cases. Despite delivering blistering growth, fat margins, and exceptional returns on capital, the market seems to be looking the other way. And that disconnect is exactly what caught my attention.
It means I have looked at what changed, weighed it against what I thought I was buying, and concluded that the long-term case is intact.
Whether you agree with that after reading this comprehensive analysis (around 7,500 words) is up to you.
And of course, I always welcome pushback!
What follows is a full update. I will walk you through what the profit warning actually said and, more importantly, what it did not say. I will revisit the thesis piece by piece and mark which pillars are still standing and which ones need revising. Then a fresh look at valuation, the new developments worth knowing about, and a few ideas I have been chewing on since Thursday morning.
In this update, I’ll walk through:
What the profit warning actually said, and why a 5% cut to revenue translates into a 15% cut to profit
Why the Middle East is the headline rather than the cause, and what the delays in Europe and the Americas tell us about how this business behaves under macro stress
Why management reaffirmed guidance five weeks before withdrawing it, what that costs them in credibility, and how much weight I still place on their words
The two reminders every investor needs when a holding drops 19% in two days, including where FY26 earnings actually land against the last seven years
What the arrival of Sunbelt Rentals in US 13-F filings reveals about how serious money views scaled rental platforms, and why Ashtead being too small for those funds is an edge rather than a drawback
Who has been building positions on the register since the Main Market uplisting, and what I’ll be watching over the coming weeks
A full valuation rebuild from enterprise value down to a true economic earnings multiple, on guided figures, on audited FY25, and on the trailing twelve months + a reverse DCF
The three ways my valuation could be wrong, including the one bear argument I take seriously enough that it could break the thesis
What the current price actually requires me to believe, and the base rates for a business like this delivering it
