With the new hotkeys (and the low commissions) the JWS
is great for scalping!
There still remains a nasty problem with ECN executions that was inherited from TWS: Excution starting prices come from the ECN book instead of the NASDAQ Level One inside market.
From an ECN trader's point of view the market consists of the ECN book *plus* the NASDAQ inside market at the top. (ECNs feed through to the NASDAQ at the inside market.)
The ECNs are not separate markets (though I suspect the original architect of TWS may have thought so.)
Since the ECN book's inside market often tends to spread and shrink wildly, using those prices as a starting point, as IB does, is a recipe for disaster.
I've heard a number of complaints in the chatrooms that I trade in of bad quotes and bad executions. I suspect that most of these are due to these ECN quotes. I've been bitten myself, fixating on the fraction and not noticing that the whole number is a full point off from the current market! YIkes!
ECNs are great stuff, but they don't stand alone.
I've seen requests here that an *option* be added to fix this problem. This will work fine, but why not just remove the mistake all together? The ECN book is good to see, but it's almost never the right place to start a trade from.
All of the other platforms (Cyber, Realtick, Tradescape, etc.) start their executions with NASDAQ inside market (L1) prices.
Thanks IB, keep up the good work!
Richard