What if France, rather than Britain, had bought the Suez Canal shares?
Short answerIt could have led to a limited Anglo-French war or confrontation.
NotesA limited Anglo-French war is the only consequence proposed. The premise treats ownership of the canal shares as political control rather than an ordinary investment. A French purchase would therefore challenge the position Britain historically acquired over a route central to imperial communication. No date, allies, campaign, or settlement are explored, so a more detailed outcome would be speculation.