RE: They aren’t running things now24 Jun 2025 20:41
BC, I could be wrong but I'm not sure it works that way. More likely market makers/ arbitrageurs in action than Oz investors on aim. They will be buying on the ASX when it is open.
Interesting explanation below (from ChatGPT) on how our cross listing will work and affect pricing. Hopefully over time it will all settle.
how cross-listed shares work, particularly across non-overlapping time zones like AIM (London's Alternative Investment Market) and ASX (Australian Securities Exchange).
💡 Basic Concepts
A company can list its shares on more than one exchange (called cross-listing), but there is usually a single pool of underlying shares, and trading on each exchange represents claims on the same economic interest. These shares are either:
• Fungible between markets (can be transferred between exchanges)
• Or are represented differently on each exchange (like CDIs on ASX for foreign shares)
🌏 AIM and ASX: No Trading Overlap
AIM (UK) and ASX (Australia) operate in different time zones, with virtually no overlap in trading hours.
❓ So What Happens if There’s Heavy Selling on AIM?
If there’s heavy selling pressure on AIM while ASX is closed, here’s what typically happens:
1 Price Drop on AIM: The AIM-listed share price drops due to local selling pressure.
2 Market Makers/Arbitrageurs React:
◦ Professional traders or market makers notice the price discrepancy between AIM and the ASX price (when ASX reopens).
◦ If the AIM price is significantly lower, arbitrage opportunities arise.
3 Cross-Market Arbitrage:
◦ Traders buy on AIM (cheap) and sell on ASX (expensive), or vice versa.
◦ To execute this, they typically convert or transfer the shares between registers:
▪ E.g., transferring shares from the UK register to the ASX (or vice versa) using a custodian mechanism(like CDI conversion in Australia).
◦ This keeps the price between the exchanges aligned over time.
4 Settlement and Custody:
◦ There’s a backend transfer via custodians (e.g., CHESS Depositary Interests in Australia) that keeps the share registers balanced.
◦ The total number of shares globally stays the same, but their location on each market can change.
🧮 Analogy
Think of it like water in two connected tanks (AIM and ASX). If one tank loses pressure (lots of selling), it creates an imbalance. When the valve (time overlap/arbitrage) opens, water (shares) shifts until balance (price parity) is restored.
📌 Summary
If there's heavy selling on AIM:
• Prices fall on AIM.
• No immediate effect on ASX prices (as it's closed).
• When ASX opens, prices may adjust downward — driven by arbitrage or investor sentiment spillover.
• Behind the scenes, custodians may shift shares between markets to reflect the change in demand.