Bid ask delta trading via market data

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(Last Updated On: October 26, 2020)

You might want to consider trading off of order book data. These links help understand the concept of this depending on your market data source

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There is also the concept of market delta trading

Here are some highlight quotes from these links

Like I said before, delta only tells you something in context. If there is a high delta with high movement, that means market makers and reversion traders have pulled their limit orders for the time being. If you see a high delta with low movement, especially in the context of a level, you can take that to mean that aggressive buyers or sellers have run into a large amount of limit orders

I am not sure I can answer the difference between institutional versus retail since I am not clear on the definition of what institutional is myself. Take for example, TelventDTN, the company that owns the technology behind the IQFeed service, Kinetick service and Prophet X service. IQFeed and Kinetick target the retail active trader where Prophet X is mainly installed in institutions. Different target markets, same technology. CQG targets institutions however; we just announced partnership with them to address our main demographic, the retail trader. Zen-Fire, technology used in institutions and prop shops however, NinjaTrader/Zen-Fire heavily used by the retail trading community. My point is that here are three products that clearly overlap both retail and institutional space using the same technology.
Let me clarify some definitions…Market data service only provides data, trading engines provide data and order routing.

• Unfiltered data: Some provide it, some provide option to aggregate it, and in the case of the trading engine providers, filtered vs. unfiltered is dependent on the FCM who hosts the technology

• Time stamps: All market data vendors provide time stamps however, only some trading engines do thus, the client application must add a time stamp to incoming ticks

• Historical data: All market data vendors provide it, most trading engines do not

• Historical bid/ask prices per tick: Most vendors do not provide this

• Compression: Some vendors provide compression, some optional compression some do not

My response likely does not make things much clearer. I think the point is simply, what do need as a trader? My comments are based on my direct experience in working with and writing to 15+ market data/brokerage API’s.

Some complicated research papers were mentioned as well

NOTE I now post my TRADING ALERTS into my personal FACEBOOK ACCOUNT and TWITTER. Don't worry as I don't post stupid cat videos or what I eat!
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Hi i there My name is Bryan Downing. I am part of a company called QuantLabs.Net This is specifically a company with a high profile blog about technology, trading, financial, investment, quant, etc. It posts things on how to do job interviews with large companies like Morgan Stanley, Bloomberg, Citibank, and IBM. It also posts different unique tips and tricks on Java, C++, or C programming. It posts about different techniques in learning about Matlab and building models or strategies. There is a lot here if you are into venturing into the financial world like quant or technical analysis. It also discusses the future generation of trading and programming Specialties: C++, Java, C#, Matlab, quant, models, strategies, technical analysis, linux, windows P.S. I have been known to be the worst typist. Do not be offended by it as I like to bang stuff out and put priorty of what I do over typing. Maybe one day I can get a full time copy editor to help out. Do note I prefer videos as they are much easier to produce so check out my many video at