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Is it not possible to trade only NASDAQ listed stocks, or futures? I'm not really aware if the exchanges belong to the same organisation or what...

Yeah, I already sensed they don't want us, building 'stuff'. Well maybe we can avoid NYSE altogether. I hope they don't need us to feed their greed.

In fact, the first thing I wanted to do through the API is to build a custom real-time time and sales graph with the help of a day trader that uses a technique when something particular happens. He wants a better visual output rather than the tipical times and sales list.

Could you not just graph the ouput of your algos on your screen and just hit the BUY button manually yourself? It's a bit crappy, but it's the same regular traders do, isn't it? You derive data that is in support of your display, but it's ultimately you who decides when to send the order. Even...

Thanks terr. I don't really get that last sentence. Algorithms do read Market Data, derive another data, and create orders based on that derived data. It looks to me that sentence wanted to say that you can calculate your custom indicators and use them to help you trade, the same way you watch a...

Do you trade manually or with algorithms through the API?

Well, that's sort of good news, since at least IB will probably be left untouched. Their feed is not real time, but might be enough for many algos. I'm not really planning to do HFT nor anything similar. Is there anyone here day trading succesfully using only IB Market Data?

That could make sense, but they will have to define what's real time and what's not then.

You know what, I could create a derived data graph that tells me PLACE ORDER NOW!!! but I would do it manually. hehe, technically I wouldn't be generating automated orders. By the way, where is this sentence? "It [non-display] does not apply to the creation and use of derived data." Can you...

Ok, I see. Thought it was automatic since a Lightspeed salesman gave me the non-display fees just for asking about the LTS API. Maybe I could LIE and say that I only want to develop some fancy charts (which by the way, it's true) but, eventually I want to pass the data to an algorithm. So I...

Unless they unilaterally decide that it's non-display since they cannot control whether you only do charting or not. Which seems to be what has happened to the Lightspeed API.

You are being of great help, Robert. Being Lightspeed one of the first companies being audited by NYSE, discussing this with you is being of great help.

As Robert posted: "These fees are coming directly from the NYSE. They are making us disclose who our API users are" Maybe IB doesn't know who their API users are, since its TWS platform maybe sends the same requests whether you use the GUI or the API. So maybe IB cannot disclose who their API...

So, the IB TWS comes with an option to open its API through a socket. I mean the user can activate/deactivate it. IB is going to need to remove this option, or force the user to request that activation formally so it can be classified as non-display. Or the requests throught the API will need to...

Sorry, flagged is not the right word. I'm not an English speaker. I meant that it looks to me, that any Market Vendor that allows to process the Market Data in a way that it's not for display purposes is going to be classified by NYSE as a non-display usage. So, just from reading the FAQ, IQFeed...

Reading again the FAQ https://www.ctaplan.com/publicdocs/ctaplan/notifications/trader-update/CTA Non Display Use FAQ.pdf it looks to me that any Market Data you get from whatever vendor is going to be flagged as soon as it allows to process the data in a programatic way, regardless of the API...

So, you say that if I develop my own system in C++, or Java, or whatever language, and try to connect it to a broker API I'll get classified as Non-display usage. But, if I develop my trading system inside a trading platform then I will be classified as Display usage. What an absurd and unfair...

I use IQFeed to develop/backtest trading algorithms. But then, I would like to connect these algorithms to some broker API to send orders to the market, send orders programatically. It looks like these fees are going to make it impossible to connect to any broker API. So this means that you'll...

where does it say that it only applies to professionals? I'm certainly not a professional and I have been warned about these fees if I want to use the Lightspeed API for the NYSE

So, Robert, is NYSE enforcing you to increase your user API fees? Would it be possible that platform vendors absorb these fees and keep their user fees intact? So a small trader using TWS connected to Excel is going to get hit by these absurd fees?