There is a [dedicated CRAN Task View for finance](https://cran.r-project.org/web/views/Finance.html), as well as a [dedicated mailing list](https://stat.ethz.ch/mailman/listinfo/r-sig-finance). And also try `install.packages("sos", dep = TRUE); library(sos); findFn("financial information exchange")`.
– Jan 20 '16 at 07:35