RE: 21,396,523 UT18 Jun 2022 17:25
Perhaps RMG SP was just tracking the FTSE100?
You might want to consider in your analysis that the FTSE100 might be tracking the wider global markets. In the morning FTSE100 tends to respond to Asian Markets news , also IG futures for FTSE100 opening prediction and FTSE100 then responds to ongoing US markets especially around their opening time at 2.30pm GMT. So RMG SP is in a big way tracking/responding to global markets, not just the 'local' market.