I dont know about uranium, but is it traded like oil? Does the futures contract expire today and they only have so much left that can be sold in July, so they basically get to dictate the price at the end of the contract if there is more demand than supply? We saw a drastic squeeze on oil a few years back and it was back to normal in a day

Edit: it was actually the opposite for oil. They had too much to sell and no buyer because stores were full. They literally couldn't give it away and prices went negative https://www.cnbc.com/2020/04/20/oil-markets-us-crude-futures-in-focus-as-coronavirus-dents-demand.html