Despite holding steady at the top of the CleanTech Index for a few months earlier this year, the Australian CleanTech Index (ACT) has reported that the worst performing sub-index for the quarter was the Australian Waste Index.

Source: Australian CleanTech Index.

Releasing its 1QFY18 quarterly performance report this week, the ACT note that the Australian Waste Index recorded a loss of 3.2% for the month of September, led by losses from Sims Metal Management.

The best performing sub-index for the quarter however, was the Australian Efficiency & Storage Index, with a 14.8% gain, led by Galaxy Resources.

Overall, the ACT outperformed the ASX200 for September as well as the first quarter of FY18.

It rose from 59.69 to 60.18 over the month, recording a 0.83% gain. This, compared to the ASX200 loss of 0.56% and the ASX Small Ordinaries gain of 0.58%.

Over the first quarter of the 2018 fiscal year, the ACT recorded a gain of 1.6%, ahead of the ASX200's loss of 0.7% but behind the ASX Small Ordinaries' 3.1% gain.

September's performance was driven by eight companies with gains of more than 15%. The greatest percentage gains were recorded by Quantum Energy, Actinogen, and Protean Wave Energy. The greatest gain in market capitalisation over the month was from Galaxy Resources.

These gains however, were partially offset by seven companies recording losses of more than 15% led by ReNu Energy, Water Resources Group, Traffic Technologies, and Volt Power Group. The greatest loss in market capitalisation over the month was from Sims Metal Management.

Overall, the quarter's performance was driven by 13 companies with gains of more than 25%, with the greatest gains recorded by Environmental Group, Lithium Australia, and Papyrus Australia.

ACT also reported a "major change for the sector", with 13 companies added to the index at this rebalance as the mining community, particularly in Perth, rebrands itself to supply lithium, grahphite, and cobalt to meet the growing cleantech sector.

The full report can be found here.