Seems like it could get worse (see recent articles below),...

Seems like it could get worse (see recent articles below), although as noted by posters here, the less short term traders and nervous holders of Biota, the more chance these bots will move elsewhere.

http://www.smh.com.au/business/asx-you-still-need-us-to-protect-against-computer-trades-20100208-nnc6.html

http://www.smh.com.au/business/highfrequency-trading-review-looks-in-a-corner-misses-big-picture-20100208-nncj.html

http://www.businessspectator.com.au/bs.nsf/Article/ASX-sharemarket-trader-investing-equities-pd20100208-2G9VE?OpenDocument&src=sph