New York Gets AstraZeneca Stock. UK Keeps Its Soul.

It’s not all bad news for the the UK stock market. AstraZeneca Plc has found a clever way of becoming a US-listed company without going all-American. There’s some nifty financial acrobatics on display with its plan to “harmonize” its share trading across New York, London and Stockholm announced on Monday. But it tells you how feeble Britain’s fundraising ability has become that this probably counts as a win.

If the function of the London bourse was merely to be a trading venue that priced AstraZeneca’s shares, there’d be little point in making any changes. The drugmaker is a £172 billion ($231 billion) company and it commands a premium valuation.

However, stock exchanges are also about accessing capital. AstraZeneca is an ambitious business and it could use its highly rated stock to raise cash or pay for acquisitions. The current setup, shares in London and quasi-shares called American depositary receipts in the US, hasn’t facilitated that. The market recoiled at an equity offer in 2019, and the stock price suffered for months after AstraZeneca used ADRs for a large US deal in 2021.

The extreme fix for this would be to move the primary listing to New York and shift headquarters in tandem (as this increases the likelihood of qualifying for the S&P 500 and attracting demand from tracker funds). That would have been a terrible blow for the UK.

Instead, it’s found a way of capturing a lot of the capital-market benefits of a US migration with less fuss. The firm will effectively invert the current structure. The ADRs are being scrapped and the shares will be fully tradable in New York. Meanwhile London dealings will be in the form of a quasi share called a depositary interest. TotalEnergies SE announced a similar move to scrap its ADRs last week, and British Airways owner International Consolidated Airlines Group SA has a DI structure. So it’s not quite as pioneering as it looks — but it’s still a clever way to square a circle.