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
CME to reinforce term SOFR with swap inputs
Inclusion would leapfrog a 25% OTC liquidity threshold embedded in methodology
LCH plans two-part US Libor swap conversion
CCP to ditch pre-emptive basis splitting in April and May switchover, but retains overlay swaps
Duck! Buy-side plan to dodge IM rules could backfire
Three-quarters of phase six firms do not expect to exchange margin for at least six months
How banks got caught in Archegos’s web of lies
Risk managers quizzed and confronted the firm, but lawsuits claim they were “systematically misled”
A second term SOFR: help or hindrance?
Ice launches CME rival as fallback for loans but market ambivalence may put endorsement out of reach
Credit Suisse CFO steps down ahead of crucial shareholder vote
David Mathers was also CEO of the swap dealer entities that housed the bank’s trades with Archegos
Initial margin: the final act
Practice makes perfect, the saying goes. When it comes to the final wave of implementation for uncleared margin rules, however, this may not hold true
CDS users mull ‘uniform’ price as Russia fallback
Pricing agreement could replace dealer estimates if sanctions scupper default auctions
CFTC approves start-up SDR ahead of US reporting overhaul
KOR Financial expects 30–50% cost savings as participants prepare to adopt US rule rehash
Ucits’ clash with IM rules could cause collateral damage
Strict collateral reuse guidelines may restrict popular investment vehicles’ hedging capabilities
Volatile HSCEI spells vega misery for autocall issuers
Index in ‘peak vega’ peril despite Wednesday's 12.5% rebound
Russia GDRs face extinction on sanctions and market closures
Around 100 programmes hang in the balance after BNY Mellon resigns as depository bank for VTB
Moscow Exchange closure leaves equity swap contracts in limbo
Isda plans to issue guidance on the application of commonly used disruption event clauses
Russia sanctions throw derivatives market into disarray
Lawyers say western banks face illegality terminations; industry groups plan deliverable ruble workaround
Fillip for credit-sensitive rates as Axi, Critr advance
IHS Markit makes benchmarks available for live products; Invesco appointed as Axi administrator
Equity markets have become so complex as to defy explanation
Experts struggle to rationalise wild swings in a market that is almost unrecognisable
Vanna and the Big Put: unusual suspects in a market mystery
US equity reversal on January 24 has spawned many theories, but no solid answers
BNP’s brief status as ‘non-bank’ reversed in indexing volte face
ICB’s temporary reclassification triggers repricing of dividend futures in main eurozone banks index
CCPs to review conversion blueprint ahead of SOFR switch
Rising rates vol expected to push US transition to the wire, but process likely to follow previous runs
Autocalls in peril as Netflix breaches downside barriers
Options liquidity keeps hedging panic at bay as some investors double down on volatile tech stocks
LSEG beefs up non-cleared ambitions with Quantile deal
Agreement to buy optimisation firm for £274m strengthens LCH’s FX foothold as SA-CCR bites
Euro/dollar crosses embrace RFRs, while other currencies lag
€STR becomes new standard for euro cross-currency swaps; CAD and AUD stick with legacy rates
Down but not out: US Libor trading continues amid ban
Outgoing rate hits market share lows in US swaps but little dent made in listed markets
EU’s IM model validation rules may put Simm in jeopardy
Draft RTS creates validation hurdles and cross-border conflicts, industry warns