Level II & ECN Books

Level II and ECN book streaming quotes allow you to see supply and demand, and at what prices and quantities, for a particular security. This is useful in determining possible short term price directions and the liquidity or volatility of the stock. The Time and Sales panel shows trade price, size, and time as trades are executed.

Level II data are often considered useful for strategies involving quick turnarounds, such as scalping.

Level II quotes are available under the Quotes & Research tab.

The Level II & ECN Books panel shows which market participants are making a market in the stock, as well as the bid, ask, and depth of each participant's quote. The Time & Sales columns show real-time streaming trade prices and sizes.

Bottom Panels: To view Level II & ECN books at all times, click , then select Layouts and choose Show bottom panels, then select Level II/ECN as one of the panels.

Level II & ECN Books enabled

Stock and/or option symbols and price and volume data shown here are for illustrative purposes only. Charles Schwab & Co., its parent or affiliates, and/or its employees and/or directors may have positions in securities referenced herein, and may, as principal or agent, buy from or sell to clients.

NOTE: Level II data service is available to you for a fee if you wish to subscribe. However, the fee may be waived if you meet certain eligibility requirements. For additional information, please contact your Schwab Active Trader Team. ECN Book data does not require Level II permission.

Only ECN Books enabled

Understanding Level II

Bid and Ask Quotes

The first columns (Level II Bids) show the best bid for participating Market Makers, Exchanges, and ECNs, along with quantity available for a particular quote.
The middle columns (Level II Asks) show the best ask for participating Market Makers, Exchanges, and ECNs, along with quantity available for a particular quote.
Each line shows the four-letter Market Maker or ECN ID with their bid/ask prices and the number of actual shares available at that price.

Time & Sales

The right-most columns (Time & Sales) show every trade as it is reported, along with the number of shares traded and the time of the trade.

Time & Sales is color-coded:

Green - Trades at the inside ask.
Red - Trades at the inside bid.
Gray - Trades in between the inside bid/ask.
Yellow - Trades above the inside ask.
Purple - Trades below the inside bid.
Highlight Gray - Quote change (not a transaction)

Trading Halted: If the stock you are viewing in Level II, Quick Quote, the Stock or Advanced Options trading tabs, or Charts is halted by the exchange, a yellow Trading Halted indicator will display prominently at the top of tool.

Trading from Level II

You can initiate a trade on the symbol in your Level II window by clicking on the symbol and then clicking the Trade link. It will load the symbol and trade action into the Trade tab.

Customize Level II Panel

Customize the data displayed in your Level II panel by clicking and then Level II.