You got it all wrong mate. The fork was Callisto (CLO) not Calypso's fork and the snap ought to happen yesterday but I don't know if the fork have replay protection. However, the coin holder are said to earn interest for holding the coin for long enough(at least a month or 2). But don't be blind by this to the extent of investment too much.
Yes, now I see that I mistaken in the name, but it's new coin and probably I watched the Pirates of Caribian too much 
Actually I also do not have any big expectations about CLO price, I think I will hold it a little till the price will not reach at least 4$.Ok and you're lucky though cause I don't hear about the fork on time. However, you will have a better profit if you could hold the coin for 2 months and it already listed on Yobit exchange.