Ann: S&P DJ Indices Announces March Quarterly Rebalance, page-12

https://www.asx300list.com/

'The S&P/ASX 300 (XKO) Index provides exposure to Australia’s large, mid and small-cap equities.
The index consists of all S&P/ASX 200 companies plus 100 smaller-cap companies that have market capitalisations’ above ~$100 million (AUD). The combined market capitalisation represents ~85% (March 2017) of Australia’s sharemarket.
Investors regularly use the ASX 300 as a benchmark for superannuation portfolios and managed funds due to its exposure to smaller companies.
There’s currently one Exchange Traded Funds (ETF) that tracks the performance of the S&P/ASX 300: Vanguard Australian Shares Index (VAS)'
How are ASX 300 companies selected?

Constituents are selected by a committee from Standard & Poor’s (S&P) and the Australian Securities Exchange (ASX).
All companies listed on the Australian Securities Exchange (ASX) are ranked by market capitalisation. Exchange traded fund (ETFs) and Listed Investment Companies (LICs) are ignored. The top 300 ASX stocks that meet minimum volume and investment benchmarks then become eligible for inclusion in the index.
Rebalances are conducted biannually in March and September. If a significant event occurs (e.g. delisting, merger, etc.) an intra-quarter removal may be conducted. Unlike other indices, a replacement is not added to the index until the next rebalance date.'

Might be a good question for Louis as to how this may be of benefit to us, if at all. By the look of it would further diversify shareholders (?) toward less volatile holders (?) and more of them (?).

Not overly excited about the two most trustworthy companies on the planet (LMAO - oh I can't breathe!!!) making up the committee. Though if it's mainly a numbers thing how much 'puffery' can come of it (please excuse the chip on my shoulder )