The December vaida was unchanged while the January contract was up on the forward cottonseeds oilcake market on Wednesday in the process of trading, dealers said. The December vaida closed at Rs 1308.80 and the next day it opened with no change in the early session, dealers said. The January vaida closed at Rs 1452.00 and it commenced with a gain of 20 paisa at Rs 1452.20 in the morning session, they added.