Diesel prices in the pilot seat today

Overnight global mood

Wall Street and London are finding reasons to cheer on geopolitical de-escalation hopes, particularly around Iran tensions easing. Oil prices have tumbled as a result, which sounds wonderful for inflation fighters everywhere. But here's the catch: South Africa's diesel pump has gone from R17.58 to R31.88 in three months, a 79% jump that frankly doesn't care what crude does in London.

Today's big stories

• Diesel prices hit crisis mode. A 79% surge in three months has inflation hawks sharpening their pencils. If the SARB was on the fence about rate hikes, this just gave them a very good reason to jump down. Read more.
• Interest rates on a knife's edge. Experts are genuinely divided on whether the SARB will hold or hike later this month, which is either reassuring or terrifying depending on your debt levels. Read more.
• SARB digs in on inflation targets. Despite global turbulence, the Reserve Bank is refusing to blink on its 3-6% inflation range. Admirable commitment or stubborn denial. You decide. Read more.
• JSE finds hope in lower oil. The market jumped on Iran de-escalation hopes yesterday as crude prices fell, with precious metals catching a bid as a bonus. Don't get too comfortable though; diesel pain tends to override global feel-good stories. Read more.

Sector watch

Transport and logistics stocks deserve close attention today. A 79% diesel surge is the kind of cost shock that reshuffles margins, forces price increases, and occasionally triggers profit warnings. Retailers dependent on distribution will feel the pinch; energy and fuel producers might find a silver lining. Basic materials and energy stocks could rally on inflation expectations and the possibility of rate hikes supporting commodity prices. Keep one eye on the banks too; every percentage point of interest rate volatility rewires their lending margins.

One thing to watch

The SARB's next move is the meta-story. Rate hikes kill growth, hold steady and inflation runs hot, hike or stay put the rand will have opinions about all of it. Keep a browser tab open for May's rate decision announcement; it'll move the JSE in ways diesel prices alone cannot.