Day trader pleads guilty to market manipulation (ASIC, 2017)

Judgment entered

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In August 2017 ASIC reported that South Australian day trader Stefan Mark Boitcheff pleaded guilty in the District Court of South Australia to two market manipulation charges over CFD and share trading in Anteo Diagnostics, including 117 CFD transactions that created an artificial price in 2013. Sentencing submissions were set for October 2017. The $765,000 in the release is the statutory maximum, not a penalty imposed.

The record

What was ordered

Civil penalty

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Disgorgement

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Prejudgment interest

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Total relief

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Alleged gain

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A dash means the release did not state a figure we could extract, not that the figure is zero. Penalty and disgorgement are stored separately so aggregates across the library do not double-count the same dollars.

What is alleged to have happened

the Australian Securities and Investments Commission announced this matter on August 28, 2017 as release 17-285MR. The respondent named is Stefan Mark Boitcheff (1 individual, 0 entities).

The release describes 117 CFD transactions between January and October 2013 creating an artificial price, and four transactions creating a false appearance of active trading. This library tags the matter as price manipulation.

The conduct is recorded against equities.

The release references a parallel criminal proceeding. Where a criminal case exists, the civil and criminal outcomes are recorded separately, because they resolve on different standards of proof.

For the regulator's own account of the facts, read the primary document linked above. This page deliberately summarises the structured record rather than reproducing the release.

What technique is this, and how does it work?

This action is tagged with one technique in our taxonomy. The tagging is ours: regulators charge statutory provisions, not technique names, so the mapping is an editorial judgement described in our editorial policy.

• Price manipulation — see how it works, what statute it engages, and every other action tagged the same way.

Timeline

1. 2017-08-28 ASIC media release

Primary documents

Everything on this page derives from the documents below. Where our summary and the primary document disagree, the primary document is right.

• ASIC media release

The linked release is published by the issuing regulator under its own terms. Our summary and narrative above are our own writing.

Same matter

The library links these 2 records because they appear to concern one matter: the same lead defendant, an overlapping technique tag and close filing dates, or a shared court docket or a release that cites the other. Records are listed by date filed.

This grouping is the library's, made by matching names, techniques, dates and citations when the site is built. It is not the regulator's or a court's determination that the records are one case, and it errs towards missing a link rather than making a false one.

Related actions

Other actions in the library sharing at least one technique tag with this one.

Record added September 10, 2026. submit a correction.