Shares of two Japanese restaurant operators jumped after a nearby zoo announced that its giant panda gave birth to not just one cub, but two. <span>Tokyo-based Chinese restaurant Totenko’s stock climbed as much as 10 per cent after the city’s Ueno Zoo announced that its giant panda Shin Shin delivered twins on Wednesday morning. </span> <span>Another nearby restaurant chain Seiyoken KK saw its shares advance as much as 7.4 per cent, with trading volume on both at least 10 times the three-month, full-day average.</span> “Currently, the staff is working together to observe and protect the panda mother and cubs,” Ueno Zoo said in a statement. Both stocks have been seen as a gauge for panda-related news, climbing earlier this month when the zoo announced that Shin Shin may be pregnant after mating with male panda Ri Ri. Visits to Ueno Zoo currently require a reservation, with visitors limited to 2,000 a day under coronavirus infection prevention measures. The pandas are among the zoo’s main draws, with Shin Shin and Ri Ri’s daughter Xiang Xiang – who turned four this month – among the first attractions seen as visitors enter.