The Daily Brief

Sterling spent another session pressed against a ceiling it has not closed above in over a year. Cable held near 1.3634 through Wednesday's trade, within touching distance of the 1.3661 shelf that has capped every rally since February, before slipping to near 1.3590 this morning as the dollar firmed. The move down is not a sterling story; it is a dollar one. What changed overnight sat in Washington, not London, and it has quietly removed one of the two supports that had carried the pound to the edge of its range.

The clearest evidence is in the gilt market, which has done a round trip in barely two sessions. The ten-year yield slipped under 5% earlier in the week as cheaper oil eased the imported-inflation worry that had kept UK borrowing costs elevated, but it has climbed back above 5% to trade near 5.04% after the US inflation print lifted yields across developed markets. That matters more for sterling than the exchange rate itself, because the gilt market has been the ceiling beneath the pound's ceiling all year.

Long gilts have sat near multi-decade highs for fiscal rather than growth reasons, and a currency drawing part of its bid from a bond market pricing supply risk carries a more fragile claim than one earned on domestic strength. The domestic case has not shifted since the inflation data a week ago and does not need to. July inflation ran at 2.9%, its firmest since March, with core above expectations, and money markets still price one Bank of England rate rise by year end and a second by early 2027.

Consumer confidence at a two-year high has added an early tailwind. That combination, firm inflation and improving sentiment, has kept the hike trade intact and is a large part of why the pound sits where it does. The problem was never the domestic story; it was always whether the yield support underneath it was the right kind. For a few days, cheaper oil looked as though it might resolve that question in sterling's favour, by letting the inflation impulse fade while the market still priced a hike, leaving the yield support that remained as the good kind. The US inflation surprise has muddied it again.

Global yields are now rising for inflation reasons rather than falling for relief ones, and the dollar has recovered the bid it lost last week, which is exactly the combination that has turned back every previous run at 1.3661. At 1.3590, cable has slipped back from the 1.3661 shelf it tested on Wednesday but holds more than three big figures above the 29 July low of 1.3279, still in the upper reaches of its range but no longer with the wind at its back. The pound has approached that ceiling repeatedly without a soft dollar being enough to clear it, and the soft dollar is now the variable in question. With the domestic hike trade intact but the external supports turning, the balance of risk has shifted back toward the range holding, and toward a test of the downside nearer 1.355 if the dollar's inflation-driven bid extends through the Jackson Hole meeting.

Two numbers landed on Wednesday, and together they handed the dollar a firmer footing and a more awkward backdrop at the same time. The Fed's preferred inflation gauge, the PCE price index, rose 0.2% on the month and 3.7% on the year, both above expectations, with the core measure holding at 3.3%. The second estimate of second-quarter growth was revised the other way, down to 1.5% from the 2.1% the market had penciled in. Hotter prices and softer growth is an uncomfortable mix, and the dollar has taken the inflation half as the more actionable one.

The index has climbed back above 99 to trade near 99.14, recovering the three-month floor it lost a week ago when the Treasury's expanded buyback plan first knocked it lower. The hot inflation print has done what the fiscal worry could not, which is give the dollar a reason to firm on its own account. Money markets have moved with it, now leaning toward a Federal Reserve rate rise before year end rather than the hold that looked likely a week ago, and front and long-end yields have both edged up, the ten-year back near 4.66%.

That repricing lands at an awkward moment for the Fed. The Jackson Hole symposium opens today, with the chair due to speak later in the week, and a hot inflation print landing days ahead of that speech narrows the room to lean dovish without looking as though the data is being set aside. The chair inherits a committee that already saw dissents in favour of a hike, and an inflation reading that hands those dissenters fresh cover. The framing worth watching is whether the growth downgrade is treated as the offsetting concern or waved through; the market, for now, is trading the inflation side.

None of this settles the fiscal question that broke the dollar's floor in the first place. The Treasury's plan to at least double its long-end buybacks remains the structural weight on the currency, and today's seven-year note auction is a live test of how much supply the market will take without demanding a higher yield. For now that concern has been overtaken by the inflation data, but it has not gone away, and a soft auction would put it straight back on the table.

At 99.14 the index sits roughly three per cent below June's thirteen-month high but back above the 99 floor that held for three months, and a touch under Trading Economics' own 99.44 quarter estimate. The setup has flipped from a week ago, when the only surprise not priced was a hawkish one; the hot inflation print has now done that work, and the risk runs the other way. A dovish reading of the growth downgrade, or a soft auction, is the more asymmetric outcome from here, and either would pull the index back toward the 99 line it has only just reclaimed.

The rand is up almost ten per cent against the dollar over the past year and sits within a rand of its strongest level since the Iran conflict began in February, and almost none of that is a South African story. USD/ZAR closed Wednesday's session near 15.97, having eased 0.36% on the day as the dollar firmed on the US inflation print, the first real wobble in a rally that had carried the currency to a six-month high. The level is arresting; the durability of it is the question.

The rand's recent strength rests on three external supports, and two of them moved against it this week. Gold above $4,600 has been the anchor, a soft dollar the second leg, and a collapsing oil price the third. The US inflation surprise has firmed the dollar and taken some shine off gold, which has come off its recent high toward $4,600 as stronger US data lifted yields, while oil has steadied around $87 after its three-session slide rather than extending it. For a currency this dependent on outside forces, the simultaneous softening of two of the three is exactly the kind of shift that shows up first in the exchange rate.

The domestic picture cuts the other way, but only so far. Core inflation has accelerated for five straight months to 4.2%, its highest in over a year, and two members of the Reserve Bank's committee already voted for a hike in July, which means the September decision needs only one more to shift. Today's producer inflation print, expected near 7.2% on the year, feeds directly into that debate. The complication is that the case for a hike leaned heavily on imported fuel inflation coming through in the months ahead, and cheaper oil has been quietly dismantling that assumption, which leaves the domestic support for the rand less certain than the committee's split vote suggests.

That leaves the rand caught between two fading arguments. Its external supports, a soft dollar and record gold, have started to reverse. Its one genuinely domestic support, the prospect of a September hike, rests on an inflation impulse that lower oil is eroding. The currency has spent the month trading as though both would hold, and Wednesday was the first session in which the market began to price the possibility that neither is as firm as it looked. At 15.97 the rand sits about 2% above its 52-week low of 15.6417 and roughly 10% below the 17.8246 high, still in the strongest quarter of its annual range but priced for a soft dollar and cheap oil to persist.

Trading Economics' own models put it near 15.95 for the quarter, essentially where it trades now, which leaves little room for further gains without a fresh external push. The asymmetry has shifted this week: with two of the currency's three external supports turning and the domestic hike case resting on an oil-driven inflation story that is unwinding, the risk of a move back toward 16.50 is more live than it has been all month.

One company's results did more to set the morning's tone than any central banker will this week. Nvidia reported after Wednesday's close and cleared the year's highest bar: revenue of $96 billion, up 106% on the year and comfortably ahead of expectations, with a third-quarter forecast around $108 billion and guidance for roughly 70% revenue growth into next year, well above what analysts had modelled. The stock, which had fallen for seven straight sessions into the print, jumped almost 5% after hours, and equity futures moved with it.

The reaction rippled straight into risk appetite that had gone quiet. S&P 500 futures are up around half a per cent to near 7,710, Nasdaq futures firmer still, and Japanese and other Asian technology shares rallied in sympathy. The read matters beyond a single name, because Nvidia's numbers are the market's clearest gauge of whether the hyperscalers building out AI infrastructure are seeing enough return to keep spending. A blowout quarter and a raised outlook answer that question in the affirmative, at least for now, and take one of the larger tail risks off the table into month end.

The commodity side of the picture is quieter but no less telling. Brent has steadied around $87 after shedding roughly seven per cent across three sessions, helped by a smaller-than-expected build in US crude inventories, which suggests the risk-premium unwind that dominated last week has run most of its course. Gold, by contrast, has come off its recent high toward $4,600 as the strong US inflation data lifted yields and firmed the dollar, separating from oil rather than moving with it.

Three weeks ago the two rallied together on the same geopolitical premise; they are now pricing different things, oil an easing in the Strait of Hormuz, gold a US fiscal position the inflation data does nothing to resolve. What makes the setup uneasy is that the risk-on impulse and the inflation data point in opposite directions. Equities are being lifted by an AI-spending cycle that shows no sign of slowing, with hyperscalers still raising capital-expenditure guidance, while the bond market is repricing toward a Fed that may have to tighten rather than ease.

That is a market backing two contradictory outcomes at once, and Jackson Hole, which opens today, is where the monetary side of that argument gets its next hearing. The equity rally is real, but it is leaning on growth and liquidity at exactly the moment the inflation data is questioning both. At around 7,710, S&P 500 futures sit near the top of their recent range and within reach of record territory, carried there by a single earnings report rather than a broad macro shift. The tension worth measuring is the gap between an equity market pricing accelerating AI-driven growth and a bond market pricing firmer inflation and a possible hike; the two cannot both be right for long. With the Nvidia catalyst now banked and the calendar turning to Jackson Hole and next week's payrolls, the asymmetry sits with the macro side reasserting itself over the earnings euphoria, and with any hawkish signal landing on a market priced for the opposite.