St. James's Place (LSE: STJ): priced for an exodus that the numbers do not support

St. James's Place lost a fifth of its market value in three weeks. Adviser practices advising £5bn were reported to be leaving, a broker had already questioned whether AI ends face-to-face advice, and the shares fell to half their embedded value, a level last seen in the depths of the 2023 redress crisis. This 29-page note works out what the departures are actually worth, and the answer is around half a percent of the £240.8bn the group manages.

Inside: the departures sized on management's own retention experience, then stress-tested at double that estimate, at which point the exposure is still only 1% of group funds; why the adviser economics changed in August 2025 and which practices it hit hardest; what the H1 2026 results showed on client retention, flows and capital returns; the £51bn gestation pool that starts paying its way to 2032; Healey's first Budget as a demand event for advice; the AI question answered honestly; and the valuation at 0.53x embedded value. Four appendices carry the methodology, the data registries and the workings, and the note's 12 exhibits mean every number can be checked or challenged.

By Gordon Aitken, qualified actuary, 30+ years in insurance and asset management, covering SJP since 2011. Independent commentary for information purposes only: no rating, no price target, not investment advice or a personal recommendation. The author owns shares in companies mentioned.