Butterfly spread
How a machine learning model closed a hidden FX arbitrage gap
MUFG Securities quant uses variational inference to control the mid volatility of options
Morgan Stanley FX loss leaves ill-feeling, questions in wake
Options traders saw odd quotes by US bank months before losses were publicised
Evasion concerns hamper Mifid package trade fix
Esma working on package trades, but "too premature" to discuss a solution