Oustanding over-the-counter derivatives transactions hit a record notional amount of $415 trillion (€308 trillion) at the end of last year despite slower growth rates across all market segments, according to the Bank for International Settlements' semi-annual survey.

The notional amounts of all types of OTC contracts, which are traded privately by parties away from exchanges, rose by 12% in the second half of last year, after a 24% gain in the first six months.