Peninsula said it was unaware of any reason for the change in trading.
The company did however note that there were widespread increases in the share prices of uranium companies in North America recently, and on the ASX.
The uranium price has increased close to 20% in recent weeks.
Background
Peninsula is producing uranium from the Lance Projects which have a mine life of at least 20 years, underpinned by 53.7 million pounds, the largest uranium ISR JORC-Code compliant resource in North America.