Apple AAPL

The route row on Robinhood Chain and the other issuers the book reads, for reference, normalised to one unit and set against one reference price.

Book: unread

Tracked here

Reference price

Chainlink Robinhood AAPL / USD on Robinhood Chain.

Feed 0x6B22A786bAa607d76728168703a39Ea9C99f2cD0

The reference carries its own state and age. Against an unread reference the book shows no spread. How states work