In the western town of Daloa, producing about a quarter of output in the world's top cocoa producer, the average price jumped 20 CFA francs per kg to 355 in the period as buyers grew anxious to acquire cocoa fearing there would be violence last weekend.
President Laurent Gbagbo's constitutional five-year term in office ended on October 30 but he will remain for a further 12 months with UN backing to continue implementing a peace plan aiming to reunify the country and allow fair and free elections.
Analysts feared clashes between pro-government and opposition youths or even renewed fighting but the country remained peaceful. However, government troops and riot police fired tear gas and warning shots to turn away opposition youths who tried to march to the Presidency to demand Gbagbo leave.
"A lot of buyers were worried about the October 30 date. Some were buying large quantities just in case and that put prices up," said Albert Konan, manager of the Kavokiva co-operative in the town. "They were worried about trouble that would disrupt the supply," he added.
In the western town of Soubre, the average price rose 20 CFA francs per kg to 350 during the spell. A buyer for a major US exporter there said he was offering more than usual to get plentiful supplies he needed to fulfil customer contracts.
"We had contracts to honour because our clients were telling us they needed a lot of cocoa quickly last week. We went into the bush and offered higher prices to farmers to make sure we got it," he said.