Market size increase from 500,000 to 1,000,0006 Jun 2026 07:37
If you’re looking at Level 2, you've probably noticed market makers doubled their quote size from 500,000 to 1,000,000 shares.
This happened following the MoD transparency notice, trading volume exploded to an unprecedented 117.5M+ shares. Market makers forced deeper order book sizes to absorb this massive influx of volume without letting the price gap uncontrollably.
The so what: This 1,000,000 block is serving dual purposes right now. First, a specific market maker is likely working a massive institutional order behind the scenes. Second, because it's sitting firmly on the bid, an institutional player could actively absorb incoming sell orders to build a net long position.
In my view, this is an institutional player because the 1M size constantly refreshes even when millions of retail shares are aggressively dumped into it, establishing a definitive and highly structured price floor. The next few days and weeks could be very interesting indeed.