A reason why the price is now down a lot compared to the ATH back when it was unlocked the first time is that they had a very big airdrop campaing back in 2018 or so, where thousands of people were able to claim 119 ICP or 28 ICP (i also got 28 ICP) and those are unlocking now every month. This creates a lot of sell pressure of course if ten thousands of airdrop receivers are dumping their tokens every months, but i am pretty sure that the price of ICP will start to climb again once the unlock of the airdrop is finished and therefore the huge sell pressure is gone. I personally haven't sold a single one of my ICP as i think the project has great potential.