when is manipulation not manipulation?

The ASX rules state (in part):

ASX Market Rules require all market participants to trade in a manner consistent with an orderly market.

.....In broad terms, an orderly market is one where:

...there is no attempt to manipulate market prices


Yet during the closing auction every night I was the price action where computer programs automatically adjust buy or sell orders to achieve a desired (manipulated) outcome. Typically a couple of cents away from where the stock has traded for the past several hours (if at all).

PMV had not traded at the close of $7.00 all day, yet closed there when the sell side was adjusted to exceed the buys above that level by just a couple of shares.

GWT closed $3.12 and had not traded that low since 10:33am. Again sell side was manipulated to ensure that close was achieved.


Definition of "manipulation":
If you manipulate a situation, system etc you cause it to develop or operate in the way that you want it to.

Why does the ASX allow brokers to get away with such blatant actions?

Consequences include false revaluation of institutional portfolios, CFD positions, etc etc.