I can understand BTC envy due to the ongoing ramp, but lately my most massive gains have been on B2X, which doubled between midnight and 6AM this morning, and BCH, which is less exhuberant but more liquid.
And yes, Johnny Mnemonic is quite right that one should, as a rule, rebalance away from the leading asset, into the lagging one, ceteris paribus.
What futures market are you using?
Bitfinex is probably the premier and most liquid.