Look, the number to start with is $100 million, the size of the Hong Kong IPO a Xiaomi backed robotics chip firm is now said to be eyeing, according to reporting picked up by the South China Morning Post. That is a mid-sized tech listing, not a headline deal (small enough that it will not move the IPO league table on its own, large enough that the mechanics of getting it done are worth watching).

Here is why the mechanics matter more than the number. HKEX's Listing Division put out a consultation paper on September 21 on Phase II of its Listing Framework Competitiveness Review, the same document that will eventually decide how a pre-revenue or thin-margin chip designer gets treated on eligibility and disclosure. A robotics chip firm riding Xiaomi's ecosystem halo is exactly the kind of applicant that review is being written around: strategic backer, narrow product line, the kind of profile the current Main Board rules were not built for.

The separate SFC Strategic Action Plan published September 23 under the Five Year Plan is the other half of the pipe, the one meant to keep IPO capital flowing into Hong Kong rather than New York or Shenzhen. A chip firm choosing Hong Kong over the mainland board is a vote for that plan working, before anyone has confirmed it does.

None of this is disclosed yet as a formal application. What is confirmed is the ambition, the backer, and the number. The next date that matters is whenever this firm actually files with the Listing Division, because that filing will be the first real test of whether Phase II's draft rules, still in consultation, would have changed the terms.