ASX won't check anything; their main interest lies in the number of trades. The more trades, the more revenue and profit. That task lies with ASIC, and they can rarely be bothered with small fries like this.
Fact is, nobody forced you to place an automatic conditional sell order. Can you prove that a particular seller on the downward slope had the intention to deceive holders and trick them into panic-selling? I don't think so. Neither is day-trading illegal, not even if aided by algorithms, aka 'bots. So, if my gut - or bot - had suggested to sell some at $1.30 in the hope that I could pick them up 10% lower, why should any authority question my motives? Sometimes it's getting hot in the ASX kitchen ...
SSM Price at posting:
$1.40 Sentiment: None Disclosure: Not Held
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