Short Summary: The FinancialIndicator function returns a function which takes a list of OHLCV data and returns the value of the indicator.

For example, we first pull down the data we are interested in. Here we use the OHLCV data for Microsoft from July:

We need to make a function to apply to this data. UltimateOscillator has a number of parameters that can be specified, but we will use the default values:
uO is a function which takes the data we pulled down from FinancialData:This produces a list of values corresponding to the oscillator. We could have also written:

Hello, once I get the list of indicator's value, I want to add it to a TradingChart or InteractiveTradingChart, how to do it? My original issue is to include custom indicators inside a (Interactive)TradingChart, but not one of those given by built-in FinancialIndicator, rather a user-function providing some data to add into the plot. Is this possible? If yes, how? Thanks in advance, Roberto