There has2 pairs you should see.

USD estimation and BTC pair, so when the dump or increase need to see from where the altcoin was an increase. Altcoin need sometimes to gain momentum again especialy on btc pair while bitcoin was moving up or down, the real profit is when bitcoin pair of that altcoin was moving but.

But as always, even you are losing on bitcoin pair since bitcoin price increased the estimation fiat of your altcoin could be profit.