DBS had a record date of 11th April 2023 for its special dividend of S$0.5 and its final dividend of S$0.42 for a total of S$0.92. On the record date, DBS stock declined 2.97% or S$0.99 pushing the ratio lower.
However, since this position suggested going long on 900 DBS shares, dividends worth S$ 828 would be paid out on 21st April 2023. This would offset the losses from the ratio declining.