ECB President Lagarde (Q&A) says she will be replaced in her role, process has already started to identify the successor; plenty of good candidates

• Should not be worried about the continuity of business
• ECB as an institution is solid, like a rock

Departures of serving euro-area central bank heads mid-mandate are rare enough that the market's first question is always the reason for timing, and the second is the shape of the succession, since ECB presidencies are settled by heads of government in a bargain that also allocates other top European posts rather than by any internal process. Historically the institution's reaction function has proved more durable than any single presidency: policy continuity through leadership transitions at major central banks has been the norm, with the incoming chair inheriting a committee, a staff forecast process and a reaction function that constrain early deviations, which is presumably what the 'solid, like a rock' framing is designed to pre-empt. The live question is the profile of the successor and what it signals about the hawk-dove balance on the Governing Council, since the presidency carries agenda-setting and tie-breaking weight that matters most when the council is finely split, as it tends to be late in a cycle. Worth watching is the slate of candidates as it emerges, the nationality arithmetic that links this appointment to other senior European roles, and any market attempt to price a shift in the reaction function via the belly of the euro curve or OIS path rather than the front end. Remarks stressing continuity have been the standard playbook in past transitions of this kind and have generally succeeded in capping the initial premium until the successor is named.