Most likely a single or small number of GS large private clients liquidated some very large positions in these stocks. These stocks had already taken a huge beating resulting from a rather aggressive push in the ongoing rotation from high growth stocks into more value plays that lagged the market in 2020. All of these stocks were already down 20% or more since Feb.
My best guess is these clients had overly leveraged positions and needed to liquidate holdings in response to margin call.
My best guess is these clients had overly leveraged positions and needed to liquidate holdings in response to margin call.