Tokyo Stock Exchange Inc. on Tuesday held its first panel meeting to mull the possible introduction of nighttime trading to the bourse.

Yusuke Kawamura, deputy chairman of Daiwa Institute of Research, who leads the 19-member study group consisting of brokerage executives and experts, said after the meeting that the body intends to make a decision by summer for submission to the Tokyo bourse operator.

Currently, the Tokyo Stock Exchange is open from 9 a.m. to 3 p.m., excluding a one-hour lunch break from 11:30 a.m.

Some critics say Tokyo's trading hours are too short and are calling for the introduction of after-hours trading, as at the New York Stock Exchange. But some quarters of the brokerage industry oppose the idea, citing higher costs.

Kawamura said the panel plans to hold its next meeting in mid-March, adding that panel members will discuss the matter with an eye to ensuring fairness in setting share prices while enhancing investors' convenience.