Ann: Corporate Presentation - Nth America Roadshow, page-3

Could be an ASX order balancing thing or more than likely a bot. Some professional money is making a profit from shorting and trading the down trend for sure. Or maybe not.

Short positions for the year to date are accessible through ASIC. Daily short positions in the last 2months have been sitting at around $5K-$15k value. Not much really.

Copy/paste from a google search below:
"1-share trades are the most common odd lot trade size, accounting for 9.62% of all odd lot transactions and 3.65% of all trades on NASDAQ in 2012. While 50.41% of 1-share trades result from broken orders, 34.89% of 1-share trades are intentional. We provide substantial evidence that traders use 1-share trades to “ping” for hidden liquidity. In particular, our results indicate that 1-share trades are disproportionately aggressive and also execute against hidden liquidity more than any other odd lot trade size. We also find a relative increase in trading immediately following a 1-share trade. Our results are in line with Clark-Joseph (2014), who suggests that traders may use small, unprofitable trades to detect information from other traders. Specifically, 1-share trades represent the minimum cash outlay necessary to trade, while simultaneously producing the smallest possible effects on a market maker's inventory, and in turn, a security's price."