Major Altcoins have the most volume traded again the USD. Thus, analyzing graphs of those Altcoins should be done whilst comparing them to their Bitcoin graph and their dollar value graph. Here on CryptoPotato we make sure we do that for our weekly market reports. If we were solely analyzing the Bitcoin value chart, we would surely miss the accumulation period of Ethereum by roughly $300 (recall $300 of Bitcoin accumulation back in 2015?). At the time of writing Ethereum is trading a month later, for more than $1000 for one Ether.