Nicolas Aguzin told Bloomberg this week that a SpaceX listing would be "exciting," then in the same interview defended Stock Connect (which is an odd sequence: making the case for Western tech issuers by defending the channel that replaced Western institutional investors as HKEX's marginal price-setter). The ownership math is plain. Southbound Connect flows now account for the dominant marginal trading in most mid-cap HKEX names, with Western institutional free-float ownership across the exchange's 100 largest non-state names at roughly 14-18 percent, against approximately 25-30 percent in 2019.

Right. Aguzin has the listing rules already. HKEX's primary listing reform, effective since 2022, cleared the path for technology issuers of SpaceX's scale. The missing input is buy-side depth: Western allocators who would anchor a SpaceX book and produce genuine price discovery, rather than a Southbound-led day-one pop that drifts for six months after lock-up expiry, are now scarce enough at HKEX that their participation carries a visible pricing premium against names that lack it. MSCI's semi-annual index review, scheduled for August 2026, will produce revised free-float composition data for HKEX's 2025-2026 issuer cohort, the first concrete number Aguzin's listings development team can put in front of a Western issuer considering Exchange Square over New York.