Creates a new watchlist or updates an existing one for a specific trading account. Manages collections of symbols for monitoring, enabling users to organize securities into named groups with customizable symbol lists.
Use Case: Build and maintain personalized watchlists for tracking favorite stocks, sector groups, or trading strategies within specific accounts.
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
The unique identifier of the trading account (must be a valid account owned by the authenticated user)
Array of watchlist objects to create or update. Each watchlist must have a unique name and a list of stock symbols.