DTCC
The Depository Trust & Clearing Corporation (DTCC) has appointed Arianne Collette as managing director and head of US equities, a newly created role that will see her lead strategy, growth and operational execution across the organisation’s equities business.
Based in Jersey City, Collette will oversee strategic planning for DTCC’s clearing and settlement infrastructure in US equities, with a view to driving market expansion and operational efficiencies.
She reports to Val Wotton, managing director and global head of equities solutions.
Collette joins DTCC from Morgan Stanley, where she worked for over 24 years – holding senior roles including COO and head of strategy for reinvestment, global head of sales strategy, and Americas head of resource optimisation.
LSEG
Established buy- and sell-side participant, Stephen Grady has joined LSEG as head of open directory – community engagement and growth.
Grady brings extensive experience to his new role, and has worked extensively across the industry in dealing and trading roles for over three decades.
In 2024, he received The TRADE’s Lifetime Achievement Award at Leaders in Trading, after being nominated by several buy-side peers for his significant contribution and longstanding service to the industry.
Prior to joining LSEG, he most recently served as a strategy consultant at Tradeweb for four months.
He also held the position of head of global markets and executive vice president at Lombard Odier for more than three years, based out of Geneva.
While at Lombard Odier, he also served as a director on the Swiss Regional Committee of the International Capital Market Association.
Grady has an extensive track record in leading dealing and sales trading and spent five years as global head of trading at Legal & General Investment Management.
He also held similar positions at Barclays Wealth and Fortis Investments, and served at firms spanning Liquidnet, Powe Capital Management, ADIA and Bankers Trust Asset Management.
He began his industry career working as an FX dealer at Bank of America in Sydney in 1990.
Grady has also contributed to several industry organisations including the Fixed Income Trading Committee, the Buy-Side Trading Committee and the Foreign Exchange Working Group (FXWG) during his time working across the markets.
GTS Securities Europe
Daniel Dempsey has joined GTS Securities Europe as the firm’s new head of UK market making.
London-based Dempsey brings more than two decades of financial markets experience to his new role, which sees him building and establishing GTS’ UK market making desk.
He joins the firm from Iress, where he spent nearly three years as a senior account manager, and prior to this, spent more than two years as a UK market maker at Stifel.
Previously in his career, he also served as a director in equity trading at KBW, as well as head of trading for the UK at Pictet Global Markets.
He has also worked in various market making roles at firms spanning KCG Holdings and Matrix Corporate Capital, as well as equity sales trader positions at Daniel Stewart & Company, FBR, and Dresdner Kleinwort Wasserstein, where he began his industry career in 2004.