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Yvonne Siew


Hong Kong

Siew Yvonne
Yvonne Siew


Hong Kong

Yvonne Siew is a derivatives and structured finance partner, based in Hong Kong. She is qualified in Hong Kong and England and Wales.  Yvonne has a broad finance and transactional regulatory practice.

Yvonne has extensive experience on a wide range of structured finance transactions including repackagings, total return swap structures, structured equity derivatives trades (including margin loans and collar financing), credit-enhanced bond structures and other structured securities for leading investment houses.  She has also advised on a wide range of OTC derivatives matters relating to ISDA and GMRA documentation (including close-out procedures and collateral structured arrangements).  She has advised on OTC derivatives regulatory reform including margin for uncleared swaps as well as mandatory clearing and reporting in Hong Kong and other APAC jurisdictions.

In addition, Yvonne has advised on the inaugural Panda bond issuances and the HKSAR sukuk issuances.  She also has experience in advising in relation to complaints of mis-selling regarding derivatives products and other derivatives disputes.   On the regulatory front, Yvonne’s experience includes advising on disclosure of interests and market misconduct in Hong Kong.

She regularly presents at and participates in industry conferences and other events, including ISDA.

News & insights

The London skyline full of skyscrapers against a dull sky

Publications: 30 NOVEMBER 2021

Podcast: UK and EU prospectus and listing regulation: Where next?

In this podcast, Amanda Thomas, partner and Jennifer Cresswell, counsel in our International Capital Markets practice, share a short round-up of UK and EU prospectus and listing regulation…

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pile on tower

News: 18 NOVEMBER 2021

A&O advises the underwriters on EUR 1.35 billion share capital increase of Public Power Corporation S.A.

Allen & Overy has advised Citi and Goldman Sachs as international joint global co-ordinators and Alpha Bank, Eurobank, Euroxx Securities, National Bank of Greece and Piraeus Bank as international…

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office building

News: 04 NOVEMBER 2021

Allen & Overy advises alstria on public takeover by Brookfield

alstria and Brookfield conclude comprehensive investment agreement Brookfield to launch a voluntary public takeover offer at a price of 19.50 euros per share in cash

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A luscious grass garden with the sun shining through trees

News: 03 NOVEMBER 2021

Bank of China issues the world's first sustainability re-linked bond

Allen & Overy has advised the joint lead managers and joint bookrunners on the sustainability re-linked bond offering by Bank of China Limited, London Branch. This marks the world’s first…

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Hong Kong

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Admitted as solicitor, England and Wales, 1996

Admitted as solicitor, Hong Kong, 2009


BA, Law, University of Cambridge, 1991

BCL, Oxford University, 1992