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# Questions tagged [limit-order-book]

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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320 views

### Market Maker portfolio management

I am interested in articles/strategies related to portfolio and inventory management for market makers and to management of order cancellation, updates of order, etc. Most of the strategies from ...
368 views

### What is the proportion of aggressive orders vs passive orders executed by different types of traders?

It's clear that each aggressive order (or market order or limit crossing BBO) is matched against the same volume of resting limit order(s). I'm interested in statistics per different types of ...
521 views

### Mid-Point calculation with execution probability

Referring Cao, Hansch, and Wang (2004) "The Informational Content of an Open Limit Order Book" $$\mbox{WP}^{n_1 - n_2} = \frac{\sum_{j=n_1}^{n_2} (Q_j^d P_j^d + Q_j^s P_j^s)}{(Q_j^d + Q_j^s)}$$ ...
44 views

### Probability of getting a fill of a given size

Question is quite simple, what is the probability of getting a fill for: (i) a limit order of size - $s$ (ii) that is $\Delta$ away from the mid-price (iii) in the next $t$ minutes given ...
238 views

### Crossing the spread as a ML signal

In the optic of high-frequency trading, most of the standard trading algorithms work on the principle of mid-price prediction or mid-price movement prediction. However a big drawback of this technique ...
163 views

### How to identify buy walls and sell walls from a limit orderbook?

I am trying to get notified of buy walls and sell walls from a limit orderbook and I had a couple of ideas and would appreciate some insight into these Take the mean quantity and anything above the ...
99 views

### How do orders outside of the market clearing level affect price?

Let's say a trader is trading in a LOB and he places an order deep in the book. How close can he be to the touch until he has temporary or even permanent price impact? This assumes he cancels after T ...
99 views

### What are good papers on order book dynamics?

I want to simulate a limit order book. For this I want a statistical model to model arrival of orders in the exchange. I would be thankful if anyone can point me in direction of relevant literature.
114 views

### Why is limit price order been executed with a worse price?

recently I was trying to analysis the message data from NASDAQ ITCH data, but I find a problem with a type of message called "Executed With Price Message". For example, first there is an Add Order ...
113 views

### Avellaneda/Cont model Order Book Model

The model given in the following paper by Avellaneda et al http://people.stern.nyu.edu/jreed/Papers/limitorder.pdf On page 7 he explains that the initial Bid and Ask size should be normalised by ...
577 views

### More cache friendly linked list or alternative with optimal append, delete, and ordered traversal for limit order book?

I am trying to implement a stock matching engine/order book in C++, and am searching for a more cache friendly architecture. Currently, my data structures are as follows: An intrusive rb-tree for the ...
132 views

I was asked this question in an interview and despite thinking about it for a while, I haven't been able to come up with a good answer. Suppose you have a strategy you are running where at certain ...
26 views

### Does EFP (Exchange Futures for Physical) Involves Cash Exchange?

I am new to the concept of Exchange Futures for Physical (EFP). According to some sources (link), An Exchange for Physical (EFP) is a transaction involving the simultaneous exchange between two ...
50 views

### Standard ways of simulating order books

What are some standard simple ways of simulating an order book? I have found this paper, but it is missing the implementation details. And more importantly, it appears that it ignores the size of the ...
114 views

### 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?