The country's largest lender First Abu Dhabi Bank FAB.AD fell 0.4% on Thursday, while telecoms major Etisalat ETISALAT.AD was down 0.6%. Saudi Arabian inflation rose to 3.4% in 2020, lifted by the tripling of value-added tax last year as the kingdom sought to boost state revenues hit by the coronavirus crisis and lower oil prices. In Abu Dhabi, the benchmark .ADI lost 0.5%, also its first blip during the week and only the second time it has slipped out of the 10 trading days in the new year.