EXPLAINER: South Africa's Reserve Bank data paint a mixed picture as inflation comes knocking

A green flicker on the dashboard, and shadows underneath

On 27 October, the South African Reserve Bank released its composite leading business cycle indicator for August; the index combining ten time series, from building permits and factory hours to cars sold and jobs advertised, into a single early-warning gauge. The headline: up 1.1% on the month, after falling 1.0% in June and 0.8% in July.

That snaps a two-month losing streak, on paper, a turn. Beneath the surface the composition is more careful: six of ten components rose, but the four that fell are the ones a household would recognise, fewer jobs advertised, fewer cars sold, thinner order books, weaker confidence. The index rose; the people have not felt it yet. Hence the Bank's own reminder, via statistician Kgopotso Moagi, that the indicators "can be somewhat volatile on a month-to-month basis" and that it "considers the overall trend rather than the month-to-month changes."

What the August ledger actually records

The numbers deserve precision. The composite leading business cycle indicator rose 1.1% month on month in August 2026. Year on year it was up 1.9%; but that pace slowed from 2.3% in July and 4.5% in June. The monthly direction improved while twelve-month momentum kept cooling. Both are true at once.

Six of ten components rose. The two largest positive contributors were an acceleration in the six-month smoothed growth rate of real M1 money supply and more residential building plans approved. Other gains: the dollar-based export commodity price index, the 10-year/91-day rate spread, the BER factory-hours survey, and the trading-partner leading indicator. The two biggest drags were decelerations in job advertisements and new passenger vehicle sales, down 0.3% and 0.1% in smoothed terms, plus domestic manufacturing orders and the quarterly BER/RMB business confidence index. June and July were also revised (June −1.4% to −1.0%, July −0.9% to −0.8%): normal continuous-revision policy, not a scandal.

The numbers still missing from the picture

An August print released at the end of October is, by construction, a rear-view mirror; and a foggy one. The coincident and lagging indicators, which confirm whether a turn is real, have not been fully updated alongside it. September producer inflation, expected to accelerate to 5.7% from 5.0%, would complicate the cooling narrative before the ink is dry.

We also do not know whether domestic demand is bottoming or still sliding. Retail sales grew 3.3% in real terms, but the credit-sensitive categories already wobble: hardware down 3.6%, furniture growth halved to 3.0%, under two hikes that took prime to 10.75%. The fourth quarter will test whether October's petrol increase and higher borrowing costs bite harder than fuel-levy relief and the extended SRD grant can cushion.

Because this index whispers before the economy speaks

The Bank does not publish the leading indicator for sport. It reads the leading, coincident and lagging indicators to find turning points in the business cycle; the recurring rise and fall of production, employment, income and sales. A turn in the leading index, if it holds, is the earliest official signal that the economy's gears are shifting.

The timing matters for monetary policy. September inflation printed at 4.5%, below the 4.7% consensus, but that closes a bruising 2026: from near 3.0% in February, five straight months up to 5.0% in June on a fuel shock that pushed diesel up more than 50% year on year, then 4.3% in July and 4.4% in August. The Bank has hiked twice this year; in May, then unanimously 25 basis points to 7.25% in September. A leading indicator that keeps rising argues the economy can absorb the medicine; one that rolls over argues the dose is biting. The 19 November meeting will read this data line by line.

Six up, four down; and the four that count

Split the composition and the story divides in two. The risers, money supply, building plans, export commodity prices, the bond/T-bill spread, factory hours, the trading-partner indicator, are financial and external. The fallers, job ads, vehicle sales, factory orders, business confidence, are domestic and human. The financial plumbing is improving while the human economy still wheezes. Not a contradiction, money supply often leads hiring by months, but it explains the caution: M1 accelerating is a genuine leading signal, and so is a job-ads deceleration. The next three months decide which one wins.

Markets read the print as mildly positive: the rand held near R16.65, the JSE Top-40 rose 0.6%, the 2035 bond yield eased toward 8.56%. But traders watched Washington as much as Pretoria; the Fed left rates unchanged after December-hike odds were once priced at 82%, and the rand remains a risk-sensitive currency that moves on global mood. Europe's own central bank is navigating leadership upheaval, a reminder that monetary institutions everywhere are under unusual strain.

Where the ripple travels next

Three channels light up. First, credit: M3 growth slowed to 7.93% year on year in September from 8.89% in August; private-sector credit cooled to 6.23% from 7.47%. The medicine is working through the system; exactly what a central bank wants, right up until it works too well.

Second, the consumer. August retail sales grew 3.3% in real terms, but the mix is fraying: clothing and footwear surged 6.5%, hardware fell 3.6%, furniture growth halved to 3.0%. Low food inflation still stretches budgets, but October's petrol increase and two hikes feeding through will test festive-season spending. Treasury forecasts household consumption slowing to 1.7% in 2027 from 2.3%.

Third, the statistical frame moved. The same morning, Stats SA's GDP rebasing made the economy 4.9% bigger; R6.99 trillion in 2022 instead of R6.67 trillion, all ten sectors revised higher, partly by factoring in illicit activity. Debt and deficit ratios just got prettier overnight. Other central banks are tightening into uncertain data too; the SARB's dilemma is the global central banker's in miniature.

The 19 November question

The calendar decides what comes next. September producer inflation lands first; economists expect 5.7%, and a hotter print would stiffen the Bank's spine. Then month-end: the trade balance and the budget balance, both due Friday. Then the September and October indicator prints, showing whether August's green flicker had company.

On 19 November the Monetary Policy Committee decides. With inflation at 4.5%, the repo at 7.25%, money growth cooling and the indicator tentatively pointing up, the base case is a data-dependent hold with a hawkish tone. For now the honest summary is the mixed one: a financial economy stirring, a human economy straining. Washington's own rate path will keep tugging the rand either way. Inflation is knocking; the question is whether August's data is the door opening, or just the wind.