Value-at-risk (VAR)
At UBS, market risk charge falls following model updates
Market RWAs dropped on the quarter, even though risk levels increased
A study on window-size selection for threshold and bootstrap value-at-risk models
This paper investigates the effects of window-size selection on various models for value-at-risk (VaR) forecasting using high-performance computing.
Static and dynamic risk capital allocations with the Euler rule
This paper studies the volatility of the Euler rule for capital allocation in static and dynamic empirical applications with a simulated history.
European FRTB proposals spark XVA overload fears
Banks warn of overly complex revaluation process and heightened risk of backtest fails
Forecasting value-at-risk
Alvin Stroyny and Tim Wilding build a dynamic risk framework for multi-asset global portfolios
Span 2: a fine balance
Switching margin model means walking a tightrope of competing interests amid regulatory scrutiny
Backtesting expected shortfall: mission accomplished?
A rigorous backtest for ES cannot exist, but a good approximation might do the job
A look under the hood of Span 2, CME’s new margin engine
VAR-based framework has new ways of netting contracts and setting volatility floors and more
Podcast: Acerbi on backtesting ES and FRTB’s patchwork rules
Banque Pictet quant explains a new backtesting method for expected shortfall
The minimally biased backtest for ES
Acerbi and Szekely present a backtest for expected shortfall
At CIBC, commodity, forex and rate risks raise VAR 12%
Market risk capital requirement jumps to C$695 million on value-at-risk surge
VAR lookbacks should shift dynamically, research suggests
Change-point analysis method helps identify regime shifts in equities markets, quants claim
RBC expands market risk model scope
Moving assets off standardised approach contributed to 6% quarter-on-quarter RWA decline
State Street, Goldman push VAR limits the most
Average of largest trading losses-to-VAR at State Street above 90% over past 12 months
State Street, UBS and TD Group incur VAR breaches
Backtesting exceptions cause TD Group's and State Street's market risk capital charge multipliers to climb
At US G-Sibs, market RWAs fall $18bn in Q2
Fall in VAR-based measures of risk behind the decrease
The great migration: CCPs ponder life after Span
As CME moves to a value-at-risk methodology, CCPs that license its model look on nervously
Deep hedging and the end of the Black-Scholes era
Quants are embracing the idea of ‘model free’ pricing and hedging
VAR breaches force capital add-on at StanChart
Value-at-risk capital requirement soars 38% to $161.8 million quarter-on-quarter
BNPP’s VAR sinks on prop trading exit, calmer markets
Risk of loss down 17% quarter-on-quarter
Lower interest rate risk pushes Santander’s VAR down 16%
South American portfolio accounts for largest chunk of trading risk
Model refinements slim UBS market risk RWAs
The bank’s market RWAs fell to $10.9 billion at end-June
Resampling ‘slashes’ credit risk VAR underestimates
Academics claim Vasicek model’s underestimation tendency can be slashed to near-zero
JP Morgan equity VAR surges 56%
Total trading VAR stood at $44 million for Q2