Not unusual for BTC to take several alts down with it, also takes those same alts up. On my watch list I see it all the time. Once in a great great while 1 out of 9 coin doesn't follow BTC, but 99% of the time all 9 do.
BTC red, the 8 other coins are red, BTC green those same 8 green.
My list is BTC, ETH, XRP, XLM, ADA, LINK, UNI, ONE, and last but not least the joke coin DOGE which serves no real purpose even for comparisons.