One additional background catalyst for EOM manipulations is pension funds. If a pension fund needs to mark to market, and then set return and inflow rates, having a big spike up at EOM buys them time before they need to hammer their fund sources.
Most pension funds were nominally underfunded before the recent unpleasantness, and it has not become better.
Register for free to join our community of investors and share your ideas. You will also get access to streaming quotes, interactive charts, trades, portfolio, live options flow and more tools.