i just noticed when i had my now once a day look at share prices...

i just noticed when i had my now once a day look at share prices (too depressing) and couldn't help but notice the 9 trades in MAY in the 4.10pm auction, a total of 240 shares, total value of them was $16,, less than $2 a trade. My question is, why bother splitting them up in the auction, what's the purpose of that ? In trading hours i understand it helps capping etc, but it's sight unseen at 4.10pm, or is it several entities doing those trades ?? What an absolute joke that they even bother doing it in the auction, i hope this all explodes in the rorters face one day, and they all choke on gushing oil.