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Is there a way I can determine whether an ISP has "excellent tier 1 peering agreements... Call your ISP and ask them. You'll want direct peerings at least with Alternet, Exodus, Global Crossing, Level 3, Sprintlink, Worldcom/UUnet, BBN Planet. Are you thinking that all national ISPs...

The answer is yes on both counts.

For IB it really doesn't matter which way you connect to the Internet as long as you have reasonable latency on your connection. PPP which encapsulates IP datagrams for transport on a serial line is the standard protocol for dial-up access with ISPs. Multilink PPP is used to aggregate several...

For NYSE tape reading check out the following two books: http://www.amazon.com/exec/obidos/ASIN/0870340646 http://www.amazon.com/exec/obidos/ASIN/0870340743 While both were originally published in the 1930s most of the principles laid out remain valid today. As for Ken Wolff and...

QP2 (http://www.quotes-plus.com) offers fundamental data as part of their EOD quote service. Dave

On the Nasdaq most trading halts are imposed at the request of company management. So this MM conspiracy theory is a little far fetched. In addition large MMs often carry considerable inventory and thus can themselves be hurt by gaps. On the NYSE there's also trading halts due to excessive...

The breakdown occurred after MSFT was released again for trading. It traded more than 5.6 million shares within the first 5 minutes after the halt which apparently was too much for Nasdaq's systems to cope with.

I trade VRTS every day and even in fast markets (e.g. last friday afternoon) there's practically always an ECN available within the first five levels. Of course that may be 50 cents or more away. But if you're caught leaning the wrong way in such a situation it's often better to bite the bullet...

VRTS, CIEN, JNPR, KLAC and many more fit those criteria as well.

If you stick to liquid names there will practically always be an ECN available within four or five levels in a fast market.

In that case you're probably applying a scalping style too stocks that are too illiquid to be suited for it from an execution risk perspective. Plus this point about not being able to preference MMs out of market is going to be moot in two weeks anyway when SNet will be a thing of the past for...

The NASDAQ route used to generate SNet Broadcast messages for non-marketable orders routed to it. After a recent SNet outage Nasdaq told IB to stop doing this because lots of IB customers who onviously didn't have a clue what they were doing (could it be because of a lack of documentation?)...

First, which ECN's do IB customers have direct access to? ISLD, ARCA, REDI, INCA, BTRD, BRUT, MKXT Why is it that there can't be any execution with BRUT if not on the inside. BRUT does not support orders that would result in a locked or crossed market, so if you send such an order and...

I've asked Steve Sanders at IB to have this problem fixed with BEST_ECN orders not being marked as IOC. Here's his response: David- We are pushing this request up in our queue and I hope to see a fix in the next week. -Steve

Unless he doesn't want your business the floor broker won't quote you a price that is worse than what you would get by manually legging in at that point in time.

Actually that's not true. REDI as well as ARCA and Cybercorp provide detailed documentation of their order routing logic.

Judging from the response you got from ARCA I have to doubt that def was informed correctly about BEST_ECN orders that are routed to ARCA or REDI not being subject to those ECN's proactive order handling. While ARCA's response is somewhat cryptic (who is vendor?) the mentioning of a 10 second...

I just talked to someone atthe helpdesk and from what he said when BEST_ECN routes to ARCA or REDI those orders are in fact not marked as IOC. I guess I was just lucky that so far I've never experienced the potential adverse effects of this myself. Basically, this way the whole idea behind...

I cannot comment on market orders since I never use them for nasdaq stocks but I have received immediate fills from ARCA using BEST_ECN. If BEST_ECN in fact does not send IOC orders (immediate or cancel) when hitting ARCA or REDI that would be a major problem and bug. Unfortunately and as...

Why shouldn't it hit ARCA? When BEST_ECN hits ARCA or any other ECN with proactive capabilities it sends an IOC order so ARCA's proactive order handling algorithm is never invoked. If by the time the order hits ARCA there's no liquidity left on the book at that price the order is immediately...