War, Records, and a Week That Had Everything: Wall Street’s Wild Ride | Week Ending 30 May 2026

The Week That Was

It was a week Wall Street traders will be talking about for a while. By Friday May 30, US stocks had set another record — the 22nd all-time high close for the S&P 500 in 2026 alone — despite juggling elevated oil prices, sticky inflation, geopolitical turbulence in the Persian Gulf, and a bond market that hasn’t exactly been cooperating.

The S&P 500 added 0.6% on Friday May 29 to close at a fresh all-time high, one day after setting its previous record. The Nasdaq composite climbed 0.9%. The Dow Jones Industrial Average rose a modest 24 points — less than 0.1% — but also hit record territory. All three major indices ended the week in the green.

That’s the headline. Under the surface, it was messy.

The Iran Factor: Still the Wild Card

The dominant macro story of 2026 continues to be the US-Israel war on Iran, which escalated sharply on February 28, 2026 and has kept global energy markets in a state of sustained anxiety ever since. The Strait of Hormuz — through which roughly 20% of global oil supply transits — has been severely disrupted, and oil prices have reflected that.

This week was a microcosm of the whole conflict: chaotic, sentiment-driven, and trading on rumour.

Monday and Tuesday (May 25–26) saw ASX investors rattled as US forces carried out fresh airstrikes on Iranian vessels in the Strait, pushing Brent crude back toward US$98/barrel and hammering airline and energy-sensitive stocks.

Wednesday (May 27) brought some relief. US President Trump said negotiations were “proceeding nicely,” oil pulled back sharply, and Wall Street rose to records as markets caught up from the Memorial Day weekend. Australian inflation data also came in soft — 4.2% in April, below the expected 4.4% — which took some pressure off the RBA for its June meeting.

Thursday (May 28) was the pivot. The US and Iran agreed to extend the ceasefire, sending oil tumbling to six-week lows and triggering a broad risk rally. The S&P 500 and Nasdaq both set record closing highs on the news, according to Reuters. The Australian dollar climbed off its lows.

Friday sealed it. Stocks drifted between small gains and losses early before buying accelerated into the close. The S&P 500 logged its 0.6% gain. The week was effectively rescued by geopolitics.

But make no mistake: the Iran situation is not resolved. As AMP chief economist Shane Oliver noted this week, “the deal could still collapse with Iran’s tolling of ships through the Strait a potential sticking point.” A cynic — and investors have earned some cynicism here — might observe that a ceasefire gets you back to the pre-war baseline, with none of the underlying nuclear dispute resolved.

The Earnings Story: The Real Engine

Geopolitics gets the headlines. Earnings are doing the actual heavy lifting.

Q1 2026 earnings season has been exceptional. S&P 500 earnings per share came in 29% higher year-on-year — against an analyst consensus estimate of 13% heading into the reporting period. When actual results more than double analyst forecasts, that’s not a beat; that’s a reclassification of the whole investment thesis.

The AI-driven earnings boom in big tech is the primary driver. As Charlie Bilello noted in his weekly review (published May 29), we’ve never before seen earnings growth at this rate outside of post-recessionary rebounds. This is a genuine, structural profit surge — and it has legs, with full-year 2026 S&P 500 EPS now expected to grow 24%.

The week’s earnings reports reinforced the theme:

• Dollar Tree: +17.9% after beating profit expectations. Even budget retail is holding up.
• Kohl’s: +20.6% on better-than-expected quarterly profit.
• Best Buy: +15.8% on a stronger-than-feared consumer.
• Snowflake: +36.5% after reporting that AI demand continues to drive exceptional growth.

On the other side, Salesforce gave a disappointing sales outlook that unnerved investors already watching whether AI disruption might cannibalise enterprise software revenues. That particular anxiety is not going away.

The Inflation Tax: Not Going Anywhere

Here’s where it gets complicated for rate-watchers. Core PCE — the Fed’s preferred inflation gauge — rose to 3.3% in April, its highest level since October 2023. That’s 62 consecutive months above the Fed’s 2% target. The 10-year Treasury yield sits at 4.45%, down from a mid-week high of 4.67% as oil prices pulled back and bond buyers returned.

Higher-for-longer interest rates remain the structural backdrop for everything in US markets. Stocks are running to records anyway, because corporate earnings are growing fast enough to justify current valuations — but the margin of safety is thinner than the record headlines suggest.

The personal savings rate in the US has hit 2.6%, the lowest since April 2008. Credit card delinquencies are at 13.1% — highest since 2011. Auto loan delinquencies are at a record. The consumer is stretched. AI-driven productivity gains are keeping corporate margins elevated, but the transmission mechanism from corporate profit growth to household prosperity isn’t working as efficiently as it used to.

Apple: The Quiet Giant at the Centre of It All

You cannot write the market story of May 2026 without talking about Apple (AAPL).

On Thursday May 28 — the same session that the S&P 500 set its latest all-time high — Apple closed at an all-time high of $312.51. The following day it pulled back slightly to $312.06, still within 0.2% of that record. Year-to-date, AAPL is up 15%. Market cap: approximately $4.5 trillion.

Apple’s week-ending record close wasn’t just good news for shareholders. It was symbolically significant in the context of this week’s broader story about mega-cap tech leadership. Because there’s a major subplot running under the surface: Apple is in transition.

On April 20, 2026 Apple announced that Tim Cook would step down as CEO and transition to Executive Chairman, with John Ternus, the company’s current SVP of Hardware Engineering, stepping up as the new Chief Executive. That announcement landed six weeks ago. The market has had time to process it, and AAPL’s subsequent run to all-time highs tells you something: investors, on balance, don’t hate it.

But leadership transitions at $4.5 trillion companies don’t resolve cleanly in six weeks. This is the era of Apple under new management — and what that means for the company’s AI ambitions, product strategy, and competitive positioning against an increasingly aggressive Mag 7 cohort, is the question that will define the company for the next decade.

We dig into that in full in Monday’s Stock Spotlight.

What Aussie Investors Need to Take Away

1. Iran is a binary risk — don’t be sloppy about it. The ceasefire extension is good news. It is not a resolution. If talks collapse again — and there’s a non-trivial chance — oil spikes back, inflation prints hot, and the rate-cut timeline extends further. Every Australian with US equities is exposed to this tail risk.

2. Earnings quality is real — but valuations leave little room for error. The +29% Q1 EPS surprise is the most important data point of the week. It’s not a bubble narrative. Corporate America, particularly big tech, is genuinely printing money at an extraordinary rate. But at current multiples, any miss lands hard.

3. The AUD/USD rate matters more than ever. The Australian dollar closed Friday at US71.64 cents — up from a mid-week low of US71.22 cents as risk sentiment improved. That recovery means Aussie investors lost some of the FX tailwind they got earlier in the week. For unhedged US equity positions, AUD moves can add or subtract 5–10% to annual returns independently of stock performance. (We cover this in full in Wednesday’s Currency Watch.)

4. The RBA is on pause. Australian inflation at 4.2% in April — below forecast — has effectively ruled out a June RBA rate hike, per RBC Capital Markets economist Robert Thompson. Rates on hold is good for Australian consumer stocks, property trusts, and rate-sensitive sectors.

5. AAPL holders: good week. But watch the next chapter. If you hold AAPL in your portfolio, you’ve had a strong week. But the Cook-to-Ternus leadership handover is the biggest strategic variable for the company in a decade. The market is currently giving it a thumbs-up. That verdict is not permanent.

The Week Ahead: What to Watch

• US non-farm payrolls (Friday June 5): The jobs number will shape the Fed’s thinking on rates. Strong jobs = no cut. Soft jobs = rate cut narrative comes back.
• European inflation data: Relevant to global rate expectations.
• Australian GDP (April): First read on how the economy is tracking through the Iran-driven energy price shock.
• Iran peace talks: Any breakdown will immediately hit oil prices, energy stocks, and airlines. Stay alert.
• SpaceX IPO timing: Expected in June, at a ~$1.75 trillion-plus valuation. Could be the market’s next mega-event.

One final note for the week: Snowflake’s 36.5% single-day move on AI-driven demand is a useful reminder of what the market is actually paying for right now. Not revenue. Not dividends. AI optionality — and lots of it. Navigate accordingly.

Wall St. Down Under | Australia

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