On April 18, ISDA, GFMA and IIF published key findings from an updated quantitative impact study (QIS) based on the final Fundamental Review of the Trading Book (FRTB) rules. The industry analysis, based on data from 21 banks, shows the new rules will result in market risk capital increasing between 1.5 and 2.4 times compared with current levels, depending on internal model approval for bank trading desks.