I guess one (possible) advantage is brokers and investment advisers.
Many don't provide advice or track any stock outside of the 500.
I confirmed this recently when I suggested to my wife (who's finances are separate from mine) that she look at AGY. She spoke to "her broker" who said "don't know, we don't look at or advise on anything outside the ASX500."
But, she bought AGY anyway.
Ann: S&P DJ Indices Announces March Quarterly Rebalance, page-40
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 (20min delay)
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Last
3.6¢ |
Change
-0.002(5.26%) |
Mkt cap ! $53.86M | |||
| Open | High | Low | Value | Volume |
| 3.8¢ | 3.8¢ | 3.6¢ | $126.7K | 3.421M |
Buyers (Bids)
| No. | Vol. | Price($) |
|---|---|---|
| 14 | 1815763 | 3.6¢ |
Sellers (Offers)
| Price($) | Vol. | No. |
|---|---|---|
| 3.7¢ | 525283 | 8 |
View Market Depth
| Last trade - 11.58am 02/08/2024 (20 minute delay) ? |
| AGY (ASX) Chart |