"European stocks are cheap" is one of the most durable claims in markets, and one of the least useful without a composition adjustment. A market made up of oil majors, banks, pharmaceutical groups and consumer staples should trade at a lower multiple than one made up of software and semiconductors. Most of the transatlantic valuation gap is that sentence.
The part composition doesn't explain
Sector-neutral comparisons still leave a residual discount — a European bank trades below an American one, a European industrial below its US peer. The usual explanations are lower domestic growth, fragmented capital markets and a shallower domestic pension bid for equities. All are real; none are new.
What has changed is the response. UK-listed large caps have leaned heavily on buybacks, which mechanically converts a low rating into a rising per-share claim on the same cash flow. For a patient holder, a persistent discount plus a persistent buyback is not the worst configuration available.
Where the UK index is actually exposed
Around three-quarters of FTSE 100 revenue is earned abroad, so sterling weakness supports reported earnings and sterling strength suppresses them. The index is a better expression of a view on global energy prices, sterling and Asian rates than on the British economy — a distinction that matters when reading UK equity commentary alongside UK macro data.
Frequently asked questions
Why is the FTSE 100 valued below the S&P 500?
Mostly sector composition: the UK index is weighted towards energy, banks, pharmaceuticals and staples, which carry structurally lower earnings multiples than technology.