I am not sure this posting is appropriate for this area. Please tell me if it not. I guess IB (InteractiveBoker) provides (only among many many brokers) use of R, for their API. 1)I like to get a historical data for the last 1500 daily close for the 500 stocks of SnP500. so that a matrix with 1500 rows and 500 columns is stored in my local PC. This might be done only by use of R with connection to free yahoo.com finance data, even without use of IB API. 2)Also during 9:30 and 4:00 I like to get a dynamic price change, possibly a matrix with 500 rows and 1 column, stored in my local PC. I thinks this may require the use of IB API. I do NOT need price change every second but every 1 or 5 minute price might be fine for me. There is no free work at all. Since I usually charge my daily work for $200 myself to clients, I can pay the $200 if someone can help me with a daily work. ************************************************************** Appreciated if someone direct me any other appropriate place(S) to post.