London’s blue-chip FTSE index is on observe to outperform the mid-cap benchmark by the biggest margin because the Eighties after vitality costs soared and the pound slipped in opposition to the greenback.
The benchmark FTSE 100 has been the best-performing developed market this yr in native forex phrases because the oil and mining corporations that comprise the index benefitted from robust abroad earnings and weak point in sterling.
On the identical time, the mid-cap FTSE 250, extra delicate to the British financial system, has tumbled by a fifth. Meaning it’s more likely to underperform its bigger counterpart for the primary time since 2018, and by probably the most in a yr since 1986.
In a world the place international inventory markets have tumbled this yr, the robust company income have meant the FTSE 100 is flat since January. That compares with a 15 per cent fall for Wall Road’s S&P 500 and a 9 per cent drop for Europe’s Stoxx 600.
London-listed vitality group BP, as an example, is heading in the right direction for one of the vital worthwhile years in its historical past after third-quarter earnings more than doubled to $8bn, whereas rival Shell is forecast to smash its annual profit record of $31bn set in 2008.

Established oil and mining corporations don’t sometimes increase as quick because the “growthier” and curiosity rate-sensitive shares that comprise a big proportion of the FTSE 250, stated Russ Mould, funding director at AJ Bell, an funding platform which is itself listed on the index.
Excessive charges of inflation and rising borrowing prices throughout a lot of the world dent the attraction of dangerous belongings and imply “that’s not been the case this yr,” Mould stated. “Commodities have outperformed equities and a variety of the FTSE 100 shares additionally act as inflation hedges.”
Against this the comparatively extra UK-focused FTSE 250 seems to be inversely correlated to peak UK rate of interest expectations, based on Roger Lee, head of UK fairness technique at Investec.
Charge expectations shot as much as just under 6 per cent for 2023 after former chancellor Kwasi Kwarteng’s disastrous mini-Funds earlier within the autumn, “leaving the FTSE 250 very oversold”, Lee stated. Now that expectations have cooled, nonetheless, the index might need room to rise.
“If we’ve seen a peak in gilt yields and rate of interest expectations, it’s cheap to imagine that the low has additionally been seen for the FTSE 250,” Lee added.