Nintendo shares rose significantly for the second day running following the company’s increased profit forecast last week.

On Friday Nintendo raised its full-year profit forecast by 26 percent because of higher-than-anticipated Wii and DS sales, prompting its shares to leap 8.4 percent on the Osaka Securities Exchange, their biggest jump in nine months.

Shares have now climbed for a second day in Osaka trading, by 3.7 percent to close at 53,700 yen, reports Bloomberg. The 12 percent move represents the company’s biggest two-day advance since July 2007.

“For Nintendo to make such an aggressive jump in forecasts at this stage suggests that not only does it have a good idea about the holiday season, it knows the post-Christmas restocking demand and this looks very favorable,"" Pali analyst Pelham Smithers wrote in a report following Nintendo’s upgraded profit forecast.