Yes May Altcoins drop more bceause of Bitcoin continues to rise through Fork, And People are expecting free Bitcoin Gold On 25th October if they will hold their Bitcoin in Bittrex and some other Exchanges. Its happening same like Bitcoin Cash. It may be the reason people are buying more Bitcoin to get Free Bitcoin Gold Equally.
got airdrop of btg is the easiest way to double the income for traders. It is an airdrop coin of BTG , everyone won't miss it. after that they will sell the btg and earn more BTC. That's great and easy trading scenario. The more BTC the more BTG they will earn.