This has been in the works for awhile now. Visa is going IPO sometime around the week of 17 March. Mastercard, which has a smaller market share than Visa, made a similar move back in 2006 and the results have been a 350% return.
The initial IPO price is said to be between $37-42 per share. I am working on getting Pre-IPO prices but may also look at an options strategy as we move closer to the release date.
Again, past performance is not predictive of future performance but look at Mastercard and Googles IPO offerings for some predictions.