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plainmoney — Market brief — Tuesday 06 Oct 2026 — 06:45 AEDT

The straight answer

Wall Street closed higher, with the S&P 500 up 0.8% and the Nasdaq up 1.1%, but iron ore plunged 5.4% to US$91.3. For Australia, this means a firmer open for the ASX 200, but the big miners and the Aussie dollar will be under pressure.

What's moving markets

US equities had a good night, with the S&P 500 up 0.8% to 7,781 and the Nasdaq up 1.1% to 27,503.6. The Dow also gained 0.3% to 51,309.9. This positive sentiment is setting a firmer tone for the ASX open. However, the VIX, a measure of market volatility, rose 2.0% to 15.6.

Commodities were a mixed bag. Iron ore, Australia's biggest export, fell sharply by 5.4% to US$91.3. This is a significant move and will weigh heavily on the Australian market. WTI crude was down 2.4% to US$88.9 and Brent crude fell 2.3% to US$99.9, while copper gained 2.4%. Gold saw a small rise of 0.2% to 4,170.4. Bitcoin in AUD terms was up 0.1% to 122,970.

For Australia: The ASX 200 is expected to open firmer, despite the iron ore drop. The AUD/USD gained 0.7% to 0.6974, likely driven by the broader positive risk sentiment from Wall Street, despite the hit to iron ore. The AU 10y bond yield is 5.34%, with the AU–US 10y spread at +3 bp. This spread is a key anchor for the Aussie dollar. The ASX Materials sector was up 0.4% yesterday, but the overnight iron ore fall will test that strength today. Financials were up 0.1%.

World & geopolitics

Reuters reports that the Nasdaq hit a record high as the dollar and Treasury yields climbed, while oil prices eased. This highlights the ongoing strength in US tech stocks and the mixed signals from other asset classes. Also per Reuters, oil market executives are saying that the turmoil in the oil market could last for years. This suggests ongoing volatility for energy prices, which impacts petrol prices here.

What it means for your money

Your super will see a firmer open for the ASX 200, but global markets are mixed. The positive US tech performance will help, but the iron ore drop will be a drag on the big miners in your portfolio.

Your cost of living will see some relief from falling oil prices, which should translate to lower petrol costs over time, though the AUD's rise will offset some of that.

What to watch

The next big catalyst is China's CPI/PPI data, due this Friday (9 Oct), 12:30pm AEDT. This is important because China's economic health directly impacts demand for Australian commodities. A strong print could signal renewed demand, potentially lifting iron ore prices and the AUD; a weak print could do the opposite.

Your call

The maths leans towards a mixed day for Australian markets. Wall Street's strength provides a tailwind, but the sharp drop in iron ore is a significant headwind for our biggest export earners. Watch the big miners at the open — their performance will be the live indicator of how the market is digesting the iron ore news. If they hold up, the broader market might too; if they fall hard, expect a drag on the ASX and potentially the AUD.

Today's moves

S&P 500+0.8%Nasdaq+1.1%Aussie $+0.7%Gold+0.2%Oil (WTI)-2.4%Iron ore-5.4%Copper+2.4%BHP+1.1%Fortescue+0.0%Bitcoin+0.1%

The numbers

S&P/ASX 200
8,686.40
▲ +0.1%
AUD/USD
0.6974
▲ +0.7%
Iron ore 62% Fe
91.35
▼ -5.4%
RBA cash rate
4.60%
AU 10y bond
5.34%
AU–US 10y spread
+3 bp
S&P 500
7,780.97
▲ +0.8%
Nasdaq
27,503.63
▲ +1.1%
US 10y
5.31%
▲ +3 bp
Gold
4,170.40
▲ +0.2%
WTI crude
88.93
▼ -2.4%
BTC (AUD)
122,970.00
▲ +0.1%

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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