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plainmoney — Market brief — Monday 21 Sep 2026 — 06:45 AEST

The straight answer

Wall Street closed slightly higher, with the S&P 500 up 0.2%, but the big news is the US Federal Reserve raising interest rates for the first time since 2023. This sets a cautious tone for the ASX open, which is expected to be little changed, and means continued pressure on global borrowing costs.

What's moving markets

US markets saw a mixed close, with the S&P 500 up 0.2% to 7,650.5 and the Nasdaq up 0.4% to 26,522.5, while the Dow fell 0.2% to 51,682.6. The VIX, a measure of market fear, dropped 4.1% to 14.8, indicating a slight easing of investor anxiety. This overall "risk-on" sentiment is a positive signal for global equities.

The big story overnight is the US Federal Reserve. Per ABC News, the Fed raised interest rates for the first time since 2023. This move, also reported by AP News and Fox News, reflects ongoing concerns about sticky inflation and faster growth in the US economy. US 10-year bond yields are sitting at 5.00%. Higher US rates tend to make the US dollar more attractive.

For Australia: The ASX 200 is expected to open little changed. The AUD/USD gained 0.1% to 0.7121, despite the US rate hike, suggesting other factors are at play. Iron ore, Australia's top export, saw a slight increase of 0.2% to US$97.6/t. This small rise in iron ore is a minor positive for the big miners like BHP (+1.4% to 61) and Rio Tinto (+0.8% to 167.5), though Fortescue slipped 0.1% to 16.7. The ASX Materials sector was up 1.8%, while Financials fell 0.6%, with CommBank down 1.0% to 152.4.

World & geopolitics

The US Federal Reserve's decision to raise interest rates for the first time since 2023 (per ABC News) is the most significant global market event. This move, also highlighted by AP News as reflecting "sticky inflation and faster growth," means borrowing costs are rising in the world's largest economy. This has a ripple effect, as other central banks are also raising rates (per IDNFinancials), which can tighten global financial conditions.

What it means for your money

Your home loan · The 3-month bank funding spread (BABs−OIS) is at +164bp. This spread is what banks pay to raise money above the expected cash rate, and it's a leading signal for mortgage pricing.

Your super · Global shares, as tracked by VGS, were up 0.5%, and the S&P 500 (IVV) gained 0.6%. This is a positive for the international component of your super.

Your cost of living · The AUD/USD gained 0.1% to 0.7121, which makes imports slightly cheaper, but the impact is minimal on a day-to-day basis.

What to watch

The next major catalyst is the AU Monthly CPI indicator, due on Wednesday (30 Sep), 11:30am AEST. This inflation print is crucial for the RBA's cash-rate path. If the print comes in hot, it could increase pressure for a rate hike, potentially pushing up mortgage costs and strengthening the AUD. If it's softer than expected, it could ease rate hike fears, which might see bond yields soften and the AUD weaken.

Your call

The US Fed's rate hike is a clear signal that global inflation remains a concern, even if the S&P 500 saw a small gain. For Australia, the local CPI print next week is the one to watch. A higher-than-expected number could quickly translate into higher borrowing costs, so keep an eye on those inflation figures.

Today's moves

S&P 500+0.2%Nasdaq+0.4%Aussie $+0.1%Gold+0.6%Oil (WTI)-5.7%Iron ore+0.2%Copper+1.6%BHP+1.4%Fortescue-0.1%Bitcoin+0.1%

The numbers

S&P/ASX 200
8,731.20
+0.0%
AUD/USD
0.7121
▲ +0.1%
Iron ore 62% Fe
97.57
▲ +0.2%
RBA cash rate
4.35%
AU 10y bond
5.35%
AU–US 10y spread
+35 bp
S&P 500
7,650.50
▲ +0.2%
Nasdaq
26,522.54
▲ +0.4%
US 10y
5.00%
▲ +5 bp
Gold
4,424.90
▲ +0.6%
WTI crude
96.08
▼ -5.7%
BTC (AUD)
114,009.00
▲ +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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