For Market depth experts and technicians, or anybody...help

  1. 672 Posts.
    Saw this today pre-market...
    Can anyone help me figure out this Surplus volume?
    It is from CommSec...and raises a lot of questions in my mind...
    Is it a simple glitch (I hope not, very concerning for CommSec clients)? is it a 200k bid that hasn't yet appeared on the depth? is it even trying to appear (i.e. hidden order)? is it a centrepoint order? is it a bird?

    Thanks in advance!

    SDI.jpg
 
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(20min delay)
Last
85.5¢
Change
0.020(2.40%)
Mkt cap ! $101.0M
Open High Low Value Volume
85.0¢ 85.5¢ 85.0¢ $6.644K 7.817K

Buyers (Bids)

No. Vol. Price($)
1 33183 85.5¢
 

Sellers (Offers)

Price($) Vol. No.
87.5¢ 12548 2
View Market Depth
Last trade - 15.01pm 11/08/2025 (20 minute delay) ?
SDI (ASX) Chart
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