TOKYO -- Asian stock markets ended mixed ahead of the U.S. presidential election Tuesday, as Japan and South Korea edged lower and Taiwan and Hong Kong managed to book gains.

In Tokyo, the

Nikkei 225

closed down 31.1 points, or 0.2%, at 15,340.3 and the

Topix

index, which includes all shares listed on the

Tokyo Stock Exchange

, fell 2.6, or 0.2%, to 1452.7.

Japanese tech shares turned in a mixed performance Tuesday, as

Sony

(SNE) - Get Report

fell 220 yen, or 2.4%, to 9,140 ($85.05) and

NEC

(NIPNY)

ended up 55 yen, or 2.4%, at 2,340.

The broader Tokyo market was also a mix of upward and downward pressure for major stocks. Wireless operator

NTT DoCoMo

(NTDMY)

helped push things up, ending up 70,000 yen, or 2.3%, at 3.1 million, but

Bank Tokyo Mitsubishi

(MBK)

fell 29 yen, or 2.3%, to 1,259.

The dollar traded at 107.46 yen, up from 107.12 yen Monday.

Elsewhere, Taiwan's

TWSE

index surged 220.3, or 3.9%, to 5877.8, after

Morgan Stanley Capital International

said it will increase the country's weighting in its indices. That means mean indexed funds will have to follow suit and buy Taiwanese shares. Chipmaker

Taiwan Semiconductor

(TSM) - Get Report

rose 6.9% to 116.50 Taiwan dollars ($3.62).

Hong Kong's

Hang Seng

index also ended in the plus column, rising 149.6, or 1%, to 15,820.8. Index heavyweight

China Mobile

(CHL) - Get Report

helped carry the index higher, rising HK$0.75, or 1.4%, to 53.75 ($6.89), along with bank

HSBC

(HBC)

, which rose 0.4% to HK$116.50.

South Korea's

Kospi

index fell 3.3, or 0.6%, to 553.4, as Old Economy shares weighed on the market.