Articles by Helen Bartholomew
Disappearing dealer gamma spurs wild stock swings
Stock market selloff leaves dealers perilously close to peak short gamma positioning
QIS 3.0 ‘bonanza’: hedge funds pivot from options to swaps
Pod-level scramble for max-loss exposure gives way to central risk books seeking overlays
Eurex squashes butterflies with Stir incentives
Rebate caps on low-risk strategies flatten mid-curve bulge in €STR contracts
Volatility selling is down, but not out
Shrinking risk premiums could end cycle of vol suppression, traders say – but not just yet
CFTC acting chair: ‘We don’t need a Dodd-Frank for crypto’
US regulator wants real-time market surveillance; focuses on rise of liquidity risk
Fate of US Treasury clearing deadline to be decided at crunch meeting
Isda chief predicts delay as clearing houses await confirmation of go-live dates
AI and Trump tariffs spur hyped-up dispersion trade
Popular vol strategy pays off in January despite highest entry costs on record
Reverse dispersion gains traction as implied spread jumps
Inverted strategy on Euro Stoxx 50 gains popularity for profit-taking and correlation play
How UBS sold off non-core equity assets at lightning speed
More than 40 auctions have been completed since Credit Suisse acquisition, with a little help from a T-Rex
SG looks beyond equity derivatives in new markets push
French bank aims to expand fixed income business to achieve “more stable” revenues across asset mix
Lenders scramble to get ahead of Italian fallback mandate
New law requiring robust fallbacks for Euribor will take effect on January 10
Traders dredge 0DTE data for intraday gamma insights
Firms such as UBS, BofA and OptionMetrics are investing in continuous net options position monitoring