
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.
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Articles by Helen Bartholomew
Euribor to ditch ‘expert judgement’ in May
Plan to infer euro funding costs from term version of €STR wins industry backing
Tradition links up with Komgo for energy credit optimisation
New partnership is one of four initiatives competing for dominance in wake of 2022 gas price spike
Traders dispute predictions of quick €STR transition
Poll points to five-year transition, but traders say replacing Euribor will be “a marathon”
A change of TIIE: the knotty issue of Mexico’s benchmark switch
Outlier fallback methods and narrow window to build F-TIIE derivatives liquidity make for ambitious transition plan
SOFR switch saved GSEs over $300m, study finds
Research suggests borrowers are benefitting from a systematic ‘SOFR discount’
Why Canada may need to revisit term Corra methodology
Break from US guidance benefits dealers but some futures inputs underpinning term rate are in short supply
Canadian MMFs face yield squeeze on CDOR’s demise
High-yielding BA notes will disappear from the market in June with no clear replacement at hand
Citi and JP Morgan vie to extend collateral optimisation to CCPs
High rates and increasing collateral requirements have ignited race for greater efficiency
Polish benchmark transition hits new snag
Compounded index suspended over data errors as Wibor extension reopens successor debate
Rustad re-emerges at Taula Capital
Former JP Morgan clearing head to help prepare for Q2 fund launch
Europe’s half-baked benchmark switch leaves some dissatisfied
Users frustrated by narrow scope of euro transition, but replacing Euribor was never a euro group objective
Banxico waiver prompts rethink on benchmark transition plans
Dealers weigh basis risk against longer-dated swap hedges as CME consults on new conversion plan
Euro RFR group shuts down amid ongoing benchmark uncertainty
Working group calls time on transition despite split opinion on Euribor’s long-term future
Bank QIS teams take zero-day options plunge
JP Morgan sees better risk/reward profile for 0DTE-based trend strategies
Three’s a crowd? Eurex and Ice battle CME for €STR trading
Chasing exchanges represent 75% of trading volume, 28% of open interest in first weeks of push
Bloomberg calls time on BSBY
After damning Iosco verdict, no commercial future seen for credit-sensitive rate
All-to-all no panacea for Treasury liquidity
Traders fear push for equity-style market could be detrimental to off-the-run securities
Buy side frets over cost of compulsory repo clearing
As US regulators prepare to mandate clearing, cost of compliance remains a mystery to many
As exposures mount, energy firms take up credit optimisation
Energy turmoil spurs demand for new counterparty rebalancing services in gas and power markets
Swiss autocalls ‘10% away from disaster’ as Roche shares slide
Popular ‘worst-of’ products flirt with downside barriers, but issuers see no cause for hedge alarm
Emmi consults on axing ‘expert judgement’ for Euribor
Level 2.3 inputs extrapolated from term version of €STR will replace internal bank estimates
Nasdaq revs up listed equity swaps; LSEG stuck in neutral
Trading opens for custom basket forwards, as LSEG shelves Turquoise and LCH tie-up
Traders pin Sonia derivative woes on UK’s local difficulties
Market participants say BoE forecasts and mini-budget help explain RFR products’ lack of liquidity
Why Isda ditched ‘off-cycle’ updates for Simm
Ad hoc updates riled industry, while regulators pushed for predictability in model recalibrations