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plainmoney — Market brief — Tuesday 22 Sep 2026 — 06:45 AEST

The straight answer

Wall Street had a strong night, with the S&P 500 up 1.5%, driven by chipmakers. This sets the ASX 200 for a firmer open today, while the Aussie dollar also pushed higher, up 0.1% to 0.7122.

What's moving markets

US equities rallied, with the S&P 500 closing at 7,764.7, up 1.5%. The Nasdaq led the charge, gaining 2.3% to 27,122.1, while the Dow was up 0.7% to 52,048.8. This broad-based strength in US shares suggests a positive mood for global risk assets.

Oil prices fell sharply overnight, with WTI crude down 8.3% to US$92 and Brent crude down 7.6% to US$96. This retreat in energy costs was a key factor in the equity rally, as lower oil prices can ease inflation concerns and boost consumer spending. Gold also slipped 1.0% to US$4,378.7.

In crypto, Bitcoin surged 7.1% to 122,081 AUD, and Ethereum gained 5.5% to 3,907.7 AUD.

For Australia: The strong US lead means the ASX 200 is expected to open firmer. The Aussie dollar gained 0.1% against the greenback, trading at 0.7122, as risk appetite improved. Iron ore, Australia's top export, saw a small gain of 0.2% to US$97.6, which is a minor positive for the big miners.

World & geopolitics

"Chipmakers fuel global stock gains as oil retreats," per Reuters. This headline captures the key market drivers overnight: strong performance in the tech sector, particularly chipmakers, coupled with a significant drop in oil prices. This combination generally signals a more optimistic outlook for global growth and lower inflationary pressures. The Conversation also noted that "one country is keeping global prices down – by reducing demand," referring to the oil market, which suggests underlying demand weakness contributing to the price fall.

What it means for your money

Your super will likely see a positive start to the day, with global shares rallying and the ASX 200 set for a firmer open. Your cost of living could see some relief on petrol prices if the overnight drop in crude oil prices flows through to the bowser.

What to watch

The next big local data point is the AU Monthly CPI indicator, due this Wednesday (30 Sep), 11:30am AEST. This inflation print is crucial for the RBA's cash-rate path.

Your call

The maths leans towards a firmer open for the ASX today, driven by the strong US lead and falling oil prices. If the CPI indicator comes in softer than expected next week, it could ease pressure on the RBA and potentially support the housing market; if it's hot, expect renewed talk of rate hikes, which would weigh on mortgage repayments.

Today's moves

S&P 500+1.5%Nasdaq+2.3%Aussie $+0.1%Gold-1.0%Oil (WTI)-8.3%Iron ore+0.2%Copper+2.5%BHP-0.4%Fortescue-0.1%Bitcoin+7.1%

The numbers

S&P/ASX 200
8,731.20
+0.0%
AUD/USD
0.7122
▲ +0.1%
Iron ore 62% Fe
97.57
▲ +0.2%
RBA cash rate
4.35%
AU 10y bond
5.35%
AU–US 10y spread
+38 bp
S&P 500
7,764.70
▲ +1.5%
Nasdaq
27,122.09
▲ +2.3%
US 10y
4.96%
▼ -4 bp
Gold
4,378.70
▼ -1.0%
WTI crude
91.96
▼ -8.3%
BTC (AUD)
122,081.00
▲ +7.1%

What's coming up

What we're watching

RBA cash-rate path
Cash rate per latest RBA F1.1 (see today's numbers); market pricing for the next meeting tracked via OIS.
US Fed path
US 10y and Fed pricing set the global discount rate that flows into AUD and ASX valuations.
Iron ore & China demand
AU's #1 export; watch the big miners — BHP, Rio, Fortescue — as the live read on iron-ore demand.
China property & stimulus
Structural drag on AU commodity demand; watch PBoC/LPR and developer stress.
AU housing cycle
Mortgage cost = cash rate PLUS bank funding spreads; monthly Cotality + weekend auctions are the free read.
Yen carry & BoJ
AUD/JPY is a sensitive gauge of risk; a sharp yen rally can force global de-risking (cf. Aug-2024).
AI capex cycle
Drives global tech valuations and, via data-centre power/copper/uranium, several AU names.
Global risk regime
VIX + credit + equity-bond correlation define whether we're in a calm or stressed regime.

Sources

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