For HW Q9.3.2, where we train on the first 4 years of data, what would be our label value for each batch of training data (assuming the batch is 1 year)? Do we have an overall S&P 500 opening stock value that we can use as a label?
I understand for 9.3.3. that we are using the opening stock price for each company as label, but for 9.3.2. it is unclear whether this is the case.