Using quantitative finances techniques on limited information, how might one go about finding similar(highly correlated) assets whose public information is available? The only data offered on a list of funds are yesterday's Daily Unit Values alongside up/down arrows, and last quarter's average returns %. No historical data is offered, and can't find similar those funds' ratings elsewhere.
I plan to implement a daily scraper that logs in, catches the DUV prices and slowly begins building time series tables for each fund. What would be the next step? Is it inevitable that I must also keep updated time series on all publicly available equities and funds data as well?