Quote from Pager:
SGXNK is the Singapore contract and the best to trade of all the Nikkei contracts available, trades in 5 point ticks that's 2500 Yen, also opens 15mins before the Osaka contract which trades in 10 point ticks (5000Yen), also closes 20 mins after Osaka and has an after hours market, volumes in both are good but IMO the Singapore contract with its 5 point ticks gives it the edge.
Also look at the Topix index, this trades on the TSE and will almost mirror the Nikkei, 1 point = 5000 yen but it does trade in 0.5 ticks, again good volumes and hours are the same as the Osaka Nikkei.
SFE is The Sydney Futures Exchange, the main equity contract is the Spi200 based on the main Australian index the ASX200 (IB symbol is SPI and data is free), the day session is from 9-50am to 4-30pm (Sydney time), there is then a night session from 5-10pm through until 8am, contract months are Mar/Jun/Sept/Dec , so it trades about 22 hours a day, volumes, depth and spreads on the Day session are good, i trade up to 10 contracts and if stopped out its usually at or within a tick of my stop price, although with recent volatility ive been stung a few times especially around the open if it does suddenly make a big move, tick price is A$25 per point and currently the daily range is about 120 points (A$3000), IB charge A$5 per side and most full service brokers around A$10.
The Night session of the Spi is very different to the day with often big spreads and very little on the bid/offer, volumes are also allot less and it spends most of the time tracking the ES.
The Spi is the main contract i trade and i have done very well from it, well worth looking at but IMO only the day session.