I think its normal that DIA coin has lost half of its value.Just see the market all coins were in red jone though now market is recovering.Just in a moment Bitcoin lost 1500$+ from its value and ethereum also lost its valuse from 460$ to 353$.So basically all the coins has decreased but DeFi coin has suffered more.All know that DeFi is the new topic and may be because of fud around DeFi ,DIA has lost some of its value.But I think dia coin will increase and it will be its ATH.Just look at the DeFi voin Sushi.It has decreased drastically.