I have been using BEST_ECN for the past week and have done about 300 trades with it. I have been using in on liquid stocks like INTC JNPR AMAT.
Overall, I am pretty happy with it, but it's not perfect.
At times when I really want a fill, I would place a limit order on the inside of the bid/ask.. by 1c to 3c..
Sometimes, I put multiple buy/sell orders at different limit prices.
In the cases when I don't get the fill I think the main reason is because the quotes are slightly behind and someone has already taken the stock at that level..
There have definately been situations where, say the ask is 40.00 and I bid 40.02 and I don't get a fill and the order just sits there. Usually, I don't let it just sit for more than 5 seconds -- I will cancel it -- so I can't tell you if eventually it would fill. Maybe the ECN with the best ask was just slow or the quotes were bad..
On another thread, people have requested that IB explain
the BEST_ECN routing and how is it affected by bidding
inside/outside the market, etc.
Overall, it works well enough that I will continue to use
it. The fact that to change Routes you have to create a
separate order line makes this a big improvement for IB.
Previously, I would just use ISLAND or REDI and I think I
missed out on some liquidity from the other ECNs. Today, while trading INTC and JNPR, I got alot of fills from
INSTANET (INCA) using BEST_ECN along with ISLAND.
Fleance