We have been in a one year bear market so yeah, altcoins will go up 40% and more but nobody knows the exact time. That's why in the long run, staking on DeFi platforms like Alchemix or MAXX Finance or investing in POS coins like MATIC and FTM makes sense. You can earn profits of up to 88% APY (in the case of MAXX) while you wait for the next bull run.