The Financial Times has gated this FT Alphaville piece behind its subscription paywall, preventing public access to the full article content. The headline 'Et tu too, FTSE Russell?' suggests commentary on a significant development involving the index provider FTSE Russell, likely related to market structure changes, index methodology updates, or competitive dynamics in the benchmark provider space.

Without access to the full article, the specific subject matter remains unclear. The headline's reference to Shakespeare's Julius Caesar implies criticism or perceived betrayal regarding an action taken by FTSE Russell that affected readers or market participants.

FT Alphaville historically covers financial markets, trading, and institutional developments with analytical commentary. Subscribers to the FT's Premium Digital plan would have access to this analysis.