In the last decade, the Japanese shares of Nintendo jumped by 10 percent or more in a single day on six occasions.
On average, 30 days later the stock was 2.7 percent lower. It was only positive a third of the time 30 days out.
Bottom line: History says don't buy this Nintendo spike.
(The company's ADRs generally trade in line with the Japanese shares, excluding any currency changes.)
— CNBC's parent NBCUniversal is a minority investor in Kensho.