NXXT trade for 6million shares, page-2

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From Commsec;
NXXT is a type of 'crossing' or 'crossed trade' (known as an NBBO Crossing) that your broker (CommSec) reports to the ASX. A 'crossing' or 'crossed trade' is when a trade has resulted from matching a buyer and a seller of a particular stock, and the buyer and seller are clients of the same broker. An NXXT is a crossing that has occurred at the current NBBO (see definition below) price and has been reported to the ASX.
This type of trade typically occurs when CommSec has managed to automatically match your order with another CommSec client order through the CommSec Crossing System.