What you are looking at

The biggest options trades on about 460 US stocks and funds, and on Bitcoin and Ether. Each trade gets a score from 0 to 100 based on the premium paid, how soon it expires, how far out of the money it is, and whether the same contract keeps getting hit.

Where to start

• Whales: the highest-scoring trades in the window. Start here.
• Leaders: which tickers draw the most money, and which way it leans.
• Symbol: one ticker: its day, its expiries and strikes, and its largest trades.
• Live Tape: every trade with filters, when you know what you are looking for.
• Structures and Crypto: trades with several legs, and the Bitcoin and Ether option exchanges.

How to read a trade

• Bought calls or sold puts lean bullish. Bought puts or sold calls lean bearish.
• US trades come from quotes about 15 minutes behind, and the side is read from the price against the quote, so it can be wrong. Crypto exchanges report the side themselves.
• A big trade is sometimes a hedge or a roll. The same contract traded again and again tells you more than one large trade.
• This is information, not advice. Options can lose all of their value.

About the data