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Since IB doesn't take PFOF and they're no longer in the market making business, why do they want to discourage the use of directed orders so harshly? at 0.0075 per share it's basically prohibitive.. and in the tiered fee structure I don't see any reason why they would care. Is it so that they...

https://www.investopedia.com/terms/n/net-order-imbalance-indicator-noii.asp

Do you have historical data for imbalances? I asked in your other thread along with the helpful info I gave, but you didn't reply

Looking for historical data for NOII (Net Order Imbalance Indicator) from Nasdaq TotalView and the analogous data for NYSE. Does anyone know if this data is available somewhere other than buying it direct from exchanges for insanely high prices? I realize this question has been asked multiple...

Apparently Polygon is supposed to be getting this soon. Do you have historical imbalance data? I am looking for historical.

As others have said, just use limit orders and don't rely on others to protect you. Pretty simple. However it is not true that there are no protections. IB will price cap OPGs (it's not documented how this works, but I've seen messages in my API logs about orders being capped) and exchanges...

I'm with IB and I use the API to trade so all I need to do to reverse is sell 2x the amount of shares I currently have. Whether it takes extra time for borrowing I do not know in practice, I don't do low latency stuff so have never tried to measure this. In theory the time for borrowing is an...

Isn't 0.25 the smallest tick on ES? Buy 1 ES @ 2700.25... $135,012.50 Why would ES take less time to execute or SPY not be able to instantly reverse? When you day trade stocks/ETFs on margin there is no interest payment. But now that you mention it, it's true that the futures likely have a...

That sounds interesting, so are you saying ES has less slippage? What does slippage mean here and how do you measure it? IIRC and correct me if I'm wrong, SPY typically has a 1c spread during market hours which as a percentage is smaller than 1 tick on ES. If you get price improvement on SPY...

IB does not take any risk. When overfill protection is enabled, they only route one order to the exchange at a time. Clearly this will have a very negative impact on your ability to add liquidity. Source: https://www.interactivebrokers.com/en/index.php?f=617

If rule 201 is in effect then you need an uptick to get filled, and yes this is true for MOC orders too. I've done thousands of MOCs and 99% of the times that I got no fill, it was due to the circuit breaker. https://www.sec.gov/investor/pubs/regsho.htm

Be sure to check the supported exchanges for that order type, it is a very limited set.

No. The "Adaptive Algo" can not trade in the auction so is not guaranteed the opening price. The only way to have guaranteed execution at the opening price is to send a Market on Open order to participate in the auction. If you wait until the imbalance data is available it is too late to send...

For the leverage. When I spoke to Rob Friesen (Bright Trading) back in 2014, this is what he told me, straight up. Leverage is the only reason. The prop firm business model is renting capital to undercapitalized traders. This rent is paid in the form of profit split and/or higher commissions...

I do, but it's been years since I was under $25K in my account. I'm 99% sure PDT would still be gone, but you should just confirm it with IB. btw here's the notice they sent out when the change was done: https://www.financialwisdomforum.org/forum/viewtopic.php?t=116368

lower. (lower=cheaper=better): https://www.interactivebrokers.com/en/index.php?f=1595 I believe no one even comes close. Please prove me wrong on that, if you can :)

It is grossly outdated. IB Canada dropped the PDT rule years ago (in 2013, IIRC). Source: I had an IB Canada account when it happened. I would advise the OP to simply phone IB to confirm this.

True DMA could be very important for certain types of HFT-like strategies. With IB, direct routing (through the API) is heavily disincentivized with extra fees. I've not ever traded such strategies, just theorized about them. Another thing to consider here is IB's margin interest rates are much...

PDT does not apply to IB Canada accounts.

Lee-, you're right, this isn't what's causing the dip. Most brokers down around 5% in premarket: https://seekingalpha.com/news/3384439-online-brokers-sink-premarket-jpmorgan-unveils-investing-app