Rolls-Royce (RR.L)

Rolls-Royce shares have dropped roughly a tenth below their recent average price, on unusually heavy trading.

What is going on right now?

The stock has fallen sharply and quickly, with about 40 million shares changing hands, well above normal. This coincides with broader UK worries after inflation came in at 3.5%.

How is the business itself doing?

Rolls-Royce makes engines for military jets and powers submarines, alongside civil aerospace. Sales grew about 21% recently, but profits fell roughly 63%, even as the company still brought in £4.6 billion in cash.

What stands out?

The company earns a lot on the money its shareholders have put in, yet it also carries notable debt, about £1.52 for every £1 of that shareholders' stake.

What comes next?

The gap between rising sales and shrinking profits traces back to costs, and the next earnings update will show whether that squeeze is easing.