1. Home
  2. Glossary
  3. Level 2 Data

Trading

Level 2 Data

Full order book showing all bid/ask levels

Updated Glossary

ApexVol Terminal

Options analytics, live.

Chains, IV rank, expected move and dealer positioning for 5,500+ US stocks and ETFs.

Start 7-day free trial Open the Terminal

Free on AAPL, no account. Trial: no charge if you cancel before it ends.

On this page
  1. Complete definition
  2. Keep reading

What is Level 2 Data?

Level 2 Data Real-time order book data showing all bid and ask prices with their quantities from various market participants. Unlike Level 1 data (best bid/ask only), Level 2 shows the full depth of the market. In options trading, Level 2 data helps identify hidden liquidity and potential support/resistance at specific option strikes.

Complete definition

Real-time order book data showing all bid and ask prices with their quantities from various market participants. Unlike Level 1 data (best bid/ask only), Level 2 shows the full depth of the market. In options trading, Level 2 data helps identify hidden liquidity and potential support/resistance at specific option strikes.

ApexVol Terminal

Options analytics, live.

Chains, IV rank, expected move and dealer positioning for 5,500+ US stocks and ETFs.

  • Live chains and Greeks
  • IV rank and percentile
  • Expected move and GEX
  • Screener and strategy P&L
Start 7-day free trial Open the Terminal

Free on AAPL, no account. Trial: no charge if you cancel before it ends.

Try this with real market data. 5,500+ stocks, live options chains, IV analytics and P&L. 7-day free trial.

Know the term.
Now see it priced.

Every definition here is something the Terminal shows you live on a real chain — the Greeks, the surface, the flow. Run it on AAPL without an account.

Real market data, not a sandbox. See it live on AAPL.