Australian Securities Exchange
Australia's primary securities exchange, formed by the 2006 merger of the Australian Stock Exchange and the Sydney Futures Exchange; benchmark index is the S&P/ASX 200.
- MIC (ISO 10383)
- XASX
- Country
- Australia
- Type
- Stock exchange
- Trading currency
- AUD
- Timezone
- Australia/Sydney
- Operator
- ASX Limited
- Operator LEI
- 549300SDXT36XYPVWI79 (GLEIF)
Trading session local time · Australia/Sydney
Session hours and the settlement cycle are compiled by Finance Foundation from the venue’s own published trading calendar. These are exact and change-prone — an extended session or a moved auction dates a figure like this quickly — so each row below carries what two independently maintained open calendars say about the same venue. Verify against the exchange before relying on any of it operationally. Sources.
Two independently maintained open calendars return the same hours as we hold. Cross-check from exchange_calendars (Apache 2.0) and pandas_market_calendars (MIT); neither endorses this site.
- Regular session
- 10:00–16:00
- Lunch break
- none
- Pre-market
- 07:00-10:00
- Settlement cycle
- T+2
Ownership
- Operating entity
- ASX OPERATIONS PTY. LTD. AU
549300SDXT36XYPVWI79
Not the name this venue trades under. ASX Limited is the group; the entity above is the one the ISO 10383 registry binds XASX to, and the one that legally runs this market. - Ultimate owner
- ASX LIMITED
549300VSBVYUCBIQKT71 via GLEIF ultimate-parent relationship - Owner listed
- ASX on Australian Securities Exchange
Self-listed — its own shares trade on a market it operates. - Who holds it
- Dispersed, dominated by Australian superannuation funds and global index managers — substantial-holder notices at 6 July 2026 show State Street 9.15%, UniSuper 7.67%, AustralianSuper 7.54%, BlackRock 7.09% and Vanguard 6.03% — and the ASX Constitution renders any shares held above a 20% voting-power limit by one party and its associates 'default shares'.
Segment MICs 4 venues under XASX
| MIC | Segment / venue |
|---|---|
| ASXT | ASX TradeMatch |
| ASXC | ASX Centre Point |
| ASXV | ASX VolumeMatch |
| XSFE | ASX Trade24 (ASX 24 derivatives) |
Operating MIC vs segment MIC per ISO 10383: the operating code identifies the exchange, segment codes identify its individual order books, growth markets and derivatives venues. Every code was checked line by line against the official ISO 10383 registry file (SWIFT is the registration authority) — codes that were expired or belonged to a separate operating venue were rejected.
Assets tied to this venue
S&P/ASX 200 calculated on
Covered assets whose relationship to this venue is recorded in the dataset — an index calculated on it, or a contract listed on it. Companies listed here are in the table above; this is the non-equity side.
Benchmark indices
S&P/ASX 200 · S&P/ASX 300 · All Ordinaries
1 of these 3 are covered as assets here and link through; the rest are named because the venue publishes them, not because we track them. A linked index is a real relationship in the dataset, not a name that happened to match.
Top companies by market cap covered set · 3
| Company | Ticker | Sector | Mkt cap ≈ |
|---|---|---|---|
| BHPDiversified mining (iron ore, copper) | BHP | Materials | $246bn |
| Commonwealth BankRetail & commercial banking | CBA | Financials | $189.3bn |
| CSLPlasma therapies & vaccines | CSL | Healthcare | $59.4bn |
Approximate reference values from public sources · seed-0.7 · marketcap-1 · 2026-08-30 · not real-time. See data & methodology.
JSONCSV No key, CORS enabled — paste any of these straight into a notebook.