UOB prices capital securities with reset coupon rate referencing SORA-OIS benchmark 8 Jan 2021 | The Asset In its latest move to promote the use of a new pricing benchmark in the Singapore dollar bond market, UOB has priced Singapore’s coupon rate that references the Singapore Overnight Rate Average Overnight Indexed Swap (SORA-OIS) rate. The reset coupon rate of the bank’s perpetual, non-call five-year additional Tier 1 (AT1) securities on the first call date will reference the five-year SORA-OIS rate, instead of the five-year Swap Offer Rate (SOR) interest rate swap (IRS) that had been the benchmark reference rate in the market.