WorkSafe Victoria has announced its half-year results, saying its compensation scheme remains in a sound financial position.

The mid-year results for 2018/19 show WorkSafe's performance from insurance operations (PFIO) was $68 million.

The figure is used to measure WorkSafe's financial performance as it excludes external factors such as investment returns.

WorkSafe's funding ratio – a measure of its assets against claims liabilities – was 112 per cent, which remained comfortably within its target range of 82.5 per cent to 117.5 per cent.

WorkSafe recorded a net result after tax of negative $924 million for the six months to December 31.

The authority claims this was mostly due to adverse movements in investment markets and changes to economic assumptions, and that much of this negative movement has been reversed.

WorkSafe and the Victorian Funds Management Corporation manage the worker's compensation scheme's $17 billion investment portfolio, which aims for sound returns over the long term.

The portfolio has achieved an average return of more than seven per cent a year over the last decade.

WorkSafe Chief Executive Clare Amies said the scheme remained in a sound financial position.

“The WorkSafe scheme remains fully self-funded and financially robust, and able to sustain these types of movements in investment markets,” Ms Amies said.