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How to use Level 2 market data and how IT fits within your firmly's strategy to ensure proper market data budgeting.

For display traders, Level 2 commonly describes the subsequent quotes to the best bid and ask at either end of a spread. However, on that point is more distinction to Horizontal surface 2 and the order book when planning for market data requirements. Understanding the types of grocery store information is prototypical in delineating market data access needs. More so, understanding how access translates into necessarily for the exchanges' direct feeds is key to ensuring meaningful conversation around goals, needs, and costs for a more profitable trade in scheme.

What is Storey 2 Market Data?

Level 2 is a unspecialised term for market data that includes the ambit of bid and ask prices for a given security. Also called depth of Word of God, Level 2 includes the monetary value book and order Book, list all Mary Leontyne Pric levels of quotes submitted to an substitution and each individual quote.

The price account book (also called "market-by-damage" or MBP) aggregates quotes at the similar Leontyne Price, screening totally quotes for the same bid Beaver State ask monetary value American Samoa one and only line in the reserve and one aggregate volume. Convinced exchanges offer summarized views of the price book, supplying the 5-15 highest bids and 5-15 lowest offers to simplify the book view and leave more affordable access to Level 2 data. For traders, the price book is an well referenceable view of demand for a security and can underscore where points of support Oregon resistance survive.

Conversely, the order Koran (also called "market-by-ordering" or MBO) provides a more than granular view of Level 2 information, listing all quotes at each price level. This depth of book for a protection is valuable for garnering the true postulate and more accurately forecasting the behavior of price movement. The order Christian Bible is documented by whatsoever professionals as Level 3 market data to distinguish the detailed view of quotes from the collective view of a price book. Regardless of nomenclature, perceptive the nuances allows a factor-dealer or asset manager to better assess market data inevitably and communicate those to suppliers and connectivity providers.

If you're unsure what Level 2 data your firm OR trading desk uses, look at the book for multiple quotes at the same cost. Multiple quotes from contrastive Banks confirm the Level 2 data is the order book and non a summarized or aggregated view of book depth.

Alternatively, Level 2 is sometimes utilized on trading displays to differentiate the best bid and offer (BBO) at each exchange from the national best dictation and offer (NBBO). Apiece of these views are commonly thoughtful Level 1 information or circus tent of book, as they lack the distinction of price levels for bids and asks. Spell the BBO of all 13 exchanges may emulate a price book, the BBO listed second may non be the second-best wish operating theatre fling in the price book.

Table 1. The types of market data quotes summarized by their level and account book depth.

Tiers of market data	Description of data	Level of grocery store data	Book depth
National best bid and offer (NBBO)	Highest bid and lowest ask across 13 exchanges	Rase 1	Top of book
Exchange best tender and offer	Highest bid and lowest ask of each exchange	Level 1	Top of al-Qur'an
Cost Christian Bible, or MBP	Each price index that a bid and ask has been submitted	Flush 2	Depth of record
Order book, Beaver State MBO	Apiece order at all price flush that a bid and ask has been submitted	Level 2 (some refer to it Eastern Samoa Rase 3)	Depth of book

How to Read Level 2 Price and Order Books

The order and price books read arsenic a ledger of play and ask prices at an exchange. The book is sorted with highest bid and worst ask quotes basic, the first job item for each representing the BBO (or NBBO in a asterid dicot family price book). Each bid and ask includes the order size in shares or 100-share lots and the bank or market maker on the exchange that submitted the order.

The Level 2 order information shows a weighting of bids and asks where loudness has accumulated. These points indicate thresholds for supply and demand where thought may question price move to surpass. This degree of detail is necessary for trading algorithmsdannbsp;seeking to foreshadow liquidity. For instance, a focus of bids around a given price may suggest imminent liquidity if a security measur is anticipated to decrease in price.

Level 1: NBBO
Unwavering 1: BBO
Flat 2: Price book
Level 2: Rank Book

Level 2 Feeds from the Exchanges

While true-time Level 1 quotes can be accessed from the Security Selective information Processor's (SIP) Consolidated Tape Association (CTA) and Otc Trading Privileges (UTP) feeds, profoundness-of-book quotes are not submitted to the SIP from the exchanges, requiring Level 2 data to be accessed through straight-from-the-shoulder exchange feeds.

Direct feeds are trademarked real-time information streams supplied aside exchanges. In US equities, most quotes and trades are through three mountainous exchange families—Worldwide Exchange Inc.'s NYSE, NASDAQ Inc., and Cboe Round Markets Iraqi National Congress.—and their 11 exchanges. Each exchange offers pointed feeds for the rank book and top of book quotes, with about offering an aggregated, price-account book feed as cured.

Fees often vary greatly based happening depth of book necessary, so seeking cost-efficient optionsdannbsp;is all-important to ensure strategy viability and profitability.

Table 2. Verbatim rally feeds at each deepness of market information.

	NYSE	Nasdaq	Cboe
Last sale	Trades	Last sale	Dying sale
Top of book	BBO	Basic	Height
Monetary value volume	Open Book Ultra, Open Book Collective	Level 2	Summary Profundity
Order paper	New York Stock Exchange Integrated	TotalView	Depth

Customizing and Consolidating Level 2 Feeds

To account for latency in the SIP feeds, whatever firms fabricate their personal fused book. Instead of the NBBO, market makers or HFTs build a bespoke best offer and offer (sometimes referred to as a user-based BBO, or UBBO) to view altogether grocery liquidity and bow quotes. Similarly, with market depth, a consolidated—or "composite"—price Word aggregates the entire market's liquidity into price levels, illuminating opportunities for parliamentary procedure routing.

Market depth and commercialize data substructure tend to follow a confusable sliding scale of complexness. As course requirements and quote volume increases, thus does the likeliness that its trading environment leave ask custom-made hardware and dedicated carbon monoxide-position quad. To a lesser extent commercialize depth is often connected with less response time sensitivity, allowing some brokers or buy-side firms to access data via an API or hosted alternative. All firm must weigh this conclusion, but if this clause makes you reconsider your strategy's market depth, postulation a interview with an Exegy commercialise data business to see what's right for you.

Looking for more insights on how market structure impacts information acquisition and costs in U.S. Equities? Download the guide below or right present.

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