The Nikkei index rose 1.25% to 65,811.78 points by 01:47 GMT, after jumping by about 2.2% earlier in the session to record its highest record level ever during trading at 66,428.81 points. The broader Topix index rose 0.15% to 3,944.19 points.
“Investors’ money is concentrated in stocks of chip-related companies that are witnessing a bullish boom. Investors have ignored value stocks because there is no incentive to buy them at a time when technology stocks are generating strong returns,” said Kazuaki Shimada, senior analyst at Iwai Cosmo Securities.
Shares of Tokyo Electron and Advantest rose more than 5% each.
On the other hand, shares of SoftBank Group fell by 4.3% and shares of Socionext by 5.8%, becoming the biggest losers in the Nikkei index.