Article last updated 8 September 2026.
Our September edition features three stories — read online versions via the links below or download a PDF with all three articles.
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In this edition:
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Snapshot
The golden ratio is found throughout nature. Sunflower seeds fill the head efficiently, creating spirals that follow this ratio, a pattern echoed in pinecones, shells, and branches. Stock markets have their own ratios, such as price-to-earnings and price-to-book. When these ratios deviate far from their averages, the pressure to return towards them builds up over the long term.
Q2 rise in UK private-sector productivity over the past year.
US 30-year Treasury yield at the August auction – a 25-year high.
Rise in US Midwest diesel prices over the past year.
Rise in Nigeria’s currency, the naira, over the past year.
Equities
Total return (1 September 2021 = 100)
Government bonds
10-year yields (%)
Sterling
Value of £1 in dollars and euros
Gold
US dollars per troy ounce
