Continue DCA into GOOGL and AMZN?

My Roth is maxed out (apple and VTI) and my 401k is set (contributing slightly more than enough to get full matching).

I have about $400k to invest, about $100 which have been DCA’ed the past few weeks into QQQ, GOOGL, and AMZN, with some DIS thrown in there for good measure, as things have been trending down the past few weeks.

I need to get the remaining $300k invested…should I continue DCA-ing into GOOGL and AMZN as they have these down days? I don’t want to catch a falling knife but these companies are the opposite spectrum from that.