Just for your information the market closes at 4pm on the second...

Just for your information the market closes at 4pm on the second - then the auction closes at 4.10.59 pm
not6 sure what you were watching at 4.20 but all part of the learning curve to learn the market opening/closing times seconds can make a difference in this game spec in auction... oh dear good to see your so informed.
Yes the fact are that the sp closed down by a couple of pips - probably to set up for a new game of ping pong tomorrow-