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FTSE 100 down 0.2%, FTSE 250 up 0.2%

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HSBC ( HSBC ) profit tumbles as China losses mount

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Rio Tinto logs smallest first-half profit in five years

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GSK boosts annual growth outlook

July 30 (Reuters) - London's main stock indexes were

mixed on Wednesday as investors assessed a slew of corporate

earnings ahead of the U.S. President Donald Trump's August 1

tariff deadline.

The internationally oriented FTSE 100 fell 0.2% as

of 0943 GMT, while the domestically focused midcap FTSE 250

index was up 0.2%.

Automobiles and parts stocks led the decline,

down 2.1%, as Aston Martin lost 3.7% after the luxury

carmaker issued a profit warning due to U.S. import tariffs and

weak Chinese demand.

Meanwhile, personal goods index advanced the

most with a 1.3% rise.

Among corporate updates, Taylor Wimpey lost 4.6%, the

top loser in the FTSE 100 index, after the homebuilder cut its

annual operating profit forecast.

HSBC Holdings ( HSBC ) fell 2.7% after a

sharper-than-expected drop in profit due to losses in China.

Rio Tinto edged 0.7% down after its smallest

first-half underlying profit in five years.

Sportswear retailer JD Sports fell 1.6% after its

partner Adidas missed second-quarter sales

expectations and flagged tariff costs.

Defence firm BAE Systems fell 2.3% despite

upgrading its annual earnings forecast.

RHI Magnesita dropped 12.8%, the top loser on the

FTSE 250 midcap index, after cutting its annual profit outlook.

In a bright spot, Glencore ( GLCNF ) said it aims to save $1

billion in costs by the end of 2026, as part of a review of its

industrial assets. Shares of the miner rose 1.8%.

Bodycote ( BYPLF ) jumped 12.3%, the top gainer in the FTSE

250 midcap index, after the thermal processing services provider

announced an additional 30 million pounds ($40 mln) share

buyback.

GSK expects annual sales and profit to be towards

the top of its forecast range, after quarterly sales and

earnings beat expectations. Shares of the drugmaker rose 1%.

In the U.S., the Federal Reserve is expected to leave

interest rates unchanged at its policy meeting later on

Wednesday.

The Bank of England is expected to cut borrowing costs on

August 7 for the fifth time since August last year.