The prioritized list of resting orders held by the exchange. Each limit order represents an obligation to buy or sell. The most common type of order book is prioritized first by price and them by time. Another variation is the price/size book, where larger size results in higher priority.

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Level II market data (equities)

I have been playing around with some equities historical market data and I understand that different exchanges have different definitions of what Level II (Limit Order Book) data means. What I'm ...
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Change of order size

For example I am put a limit order of size 10 at top bid. moments later, my algorithm detects we should have size of 50 here. So we request a update on this order. My question is, will we lose the ...
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Order Book vs Wallet Updates

Good morning, i am in the middle of developing my own stock exchange system and have implemented limit orders (basics) matching. The system is just a DIY solution for my own purposes and for fun ...
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Is it possible to place hidden order inside spread when trading E-mini S&P 500?

My question is not about hidden orders in general. In equity market a trader can post his hidden order inside spread, is it the same way for E-mini S&P 500?
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Are there good off-the-shelf coding implementation of trade classification algorithms?

Including Lee Ready and bulk classification methods, as well as any other method. To be clear, I'm asking for code, not just a description of the algorithm.
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Java limitbook implementation? [duplicate]

I am looking to create my own front-end. What is the best data structure/java swing object to represent a limit order book? currently I am using two JTables and loading best bid and qty data from a ...
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What is a resting limit order? [closed]

What exactly is a resting limit order? I could not find a definition on Wikipedia or Google.
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Order book depth views preferences: order-by-order vs. total aggregated volume by price levels

Which is best? Or is it irrelevant? Hi! Considering Level 2 Data (Market Depth), I want to understand the advantages to have all the order book on an order-by-order basis (or tick-by-tick basis) ...