
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
The ghost of Archegos returns to haunt Simm
UK regulator’s attack on Simm may have more to do with the failed family office than meets the eye
PRA’s pot shots threaten Simm’s global ubiquity
UK regulator’s push to improve model governance could tip non-cleared derivatives market into chaos
Phase six margin cohort may exceed estimates as vol bites
Acadia sees numbers around one-third higher than initial count, with fewer set to rely on relief
UK offers six-month margin reprieve for China netting sweep
Transition period falls short of Isda’s 18-month request, Hong Kong mulls similar relief
‘Strong case’ for US synthetic Libor in bond markets
Temporary publication under SOFR-based methodology could mop up 40% of dollar bond issues
ARRC reconvenes task force to evaluate term SOFR curbs
Concerns over one-sided market for term SOFR swaps prompts review of ‘scope of use’ guidelines
Swaptions transition snags trigger term SOFR calls
Liquidity flips to RFR but laggards struggle with behavioural quirks for contracts referencing overnight rates
Don’t just reach for the ’70s inflation playbook – CROs
Lack of inflation experience on risk teams not a concern, buy-siders say
Commodities threaten pain for initial margins
Market volatility and spot-based Simm approach may drive large margin spikes in little-tested asset class
EC official signals ‘preference’ for synthetic US Libor fix
UK regulator has resisted calls for a synthetic fallback for legacy dollar contracts
BNY Mellon offers ‘seg-light’ custody model to aid IM prep
Pre-prepared docs would cut unnecessary account fees and reduce risk of trading halts
Cross-currency’s €STR switch may hasten Euribor demise
Rising cost of issuer cross-currency hedges could spur greater adoption of euro risk-free rate
A SwapAgent-bilat basis? Not for now
SA-CCR may make settled-to-market capital benefits more difficult to quantify
Index vol has been a poor hedge for equity rout, traders say
Single stock ‘micro’ hedges have offered more protection in this year’s selloff
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