Sometimes we see When the BTC High then Alts move slightly. So, what's the correlation of Alts with BTC?
Sometimes yes, sometimes meh.
To get your answer from this, put it in your own perspective that BTC is surging in price. What would be your first reaction to it?
Convert your alts to Bitcoin? Or keep your alt and others would start to panic and would convert their alts to BTC, causing a lot of sell.