Helen Bartholomew
London bureau chief
Helen Bartholomew is London bureau chief for Risk.net.
She has written on a range of derivatives and markets topics including benchmark reform, margin rules, equity derivatives and structured products. Prior to joining Risk.net, she was derivatives editor for International Financing Review, part of Thomson Reuters, where she previously reported on debt and equity capital markets.
Helen holds a bachelor’s degree in anthropology from the University of Durham, UK.
Contact Helen on +44 (0) 20 7316 9223 or helen.bartholomew@infopro-digital.com
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Articles by Helen Bartholomew
Vol control indexes rewire for V-shaped rebounds
Dealers aim to fix sluggish performance of indexes that underpin $130 billion-a-year FIA market
Eurex short-term rates volumes collapse on Iran volatility
Surging yields, options hedging activity and revamped incentive schemes drive record volumes at Ice
UBS to launch merger arb QIS
Bank partners with German asset manager First Private to screen deals using machine learning
Middle East crisis revives demand for VKOs – with a twist
Equity investors balance fear and optimism by pairing 2022’s best hedge with lookback options
Iran selloff wipes out dispersion profits
Popular indexes down 5% in March, despite low realised correlation; some short bets see gains
Osttra hires four from LSEG as post-trade battle heats up
SwapAgent head Nathan Ondyak returns to Osttra following KKR acquisition
LSEG’s TradeAgent to challenge swap confirmation monopoly
Post-trade platform aims to extend clearing efficiencies to bilateral markets beyond SwapAgent
Leveraged ETFs may have fuelled Kospi plunge
Record one-day drop in Korean equity markets follows months-long surge driven by leveraged bets
Eurex mulls ‘integrated’ prediction market
Dividend derivatives seen as template for event contract expansion
After market whipsaws, banks put new twist on QIS options
Variable strike options aim to catch recoveries after volatility spikes
QIS futures debut – but only simple ones for now
Goldman and Societe Generale kick-start Eurex market with equity baskets
Eurex looks to shine ‘more light’ on off-book liquidity
Block order book initiative to aid price discovery slated for later this year
Real money investors cash in as dispersion nears record levels
Implied spreads were elevated to start 2026. Realised levels have been “almost unprecedented”