Article 2 is amended as follows: ... its proprietary positions in financial instruments, commodities and commodity derivatives which are held for resale and/or which are taken on by the institution with the intention of benefiting in the short term from actual and/or expected differences between their buying and selling prices, or from other price or interest-rate variations, and positions in financial instruments, commodities and commodity derivatives, arising from matched principal broking, or positions taken in order to hedge other elements of the trading book ...