PR and a talk with TP, page-39

Since 09 June, our biggest volume days have been when our price closes on 6.9c. The days where our closing price is 6.8c, the volume drops by a 1 million shares, (ASX figures only).
Above 6.9c the volume drops off by 1 million shares when the closing price is 7.2c.

Price Av Volume
6.8c 600,000
6.9c 1,600,000
7.0c 1,300,000
7.1c 1,000,000
7.2c 400,000

I would say that 6.9c is when the buyers match the sellers for the moment at least.