Recently I received some bounty tokens too, the project more than needed funds to meet the softcap and the token was doing okay on the exchange before the distribution of bounty tokens. Few hours before I got the tokens the price dropped to below 200% and it has gotten worse since then.
Very sad, but that's how it is. Prices are greatly influenced by market interest and that is what determines. If there is no good marketing strategy, less attractive tokens, no backup, then the price is difficult to develop so that it becomes worthless. There is not much we can do. if you believe the price can bounce with the support of a strong project then be patient, if not then sell immediately before losing its value.