Re-examine the market and you'll observe it's the other way round. I'm a big fan of bitcoin but sometimes its price manipulation affect other crypto currency more than it does to its market. You can see how the sudden correction that happened few days back affected mostly the altcoin market dumping them to lows that'll required twice the effort they used for previous climbing. Bitcoin dominance is dictating what happens in the market.

There are doubt in the coins pumping but it has nothing to do with bitcoin, irrespective of what's happening in the altcoin industry, it has zero effect on bitcoin instead bitcoin profit from them. A perfect example is when alts dump and bitcoin pumps meaning funds are moving from alrs to Bitcoin.