LONDON (Reuters) - A falling currency, doubts about the UK government’s response to the coronavirus crisis and fresh fears of leaving the European Union without a trade deal are prompting investors to ditch shares of companies exposed to the local economy.

FILE PHOTO: Traders looks at financial information on computer screens on the IG Index trading floor in London, Britain February 6, 2018. REUTERS/Simon Dawson/File Photo

The FTSE 250 index .FTMC, home to mid-sized UK stocks, has sharply underperformed British blue chips and other major European bourses since the coronavirus broke out.

The index has fallen by 43% from its Feb. 19 peak, compared with a 33% drop for the FTSE 100 index .FTSE and 36% for the pan-European STOXX 600.

The losses are also a bit sharper than in France, Italy and Spain, which have already implemented extreme measures such as entire city lockdowns.

This trend could be seen on Thursday as well: By mid-afternoon the FTSE 250 was down 3.5% while most European bourses and the FTSE 100 were in positive territory.

Some market commentators believe the fall is partially attributable to the UK’s response to the crisis.

“Initially markets were more concerned about the effect of the virus on economies outside the UK, but the implementation of more stringent containment measures in the UK over the last week has made clear that the domestic economy will also take a hit,” said Mike Bell, global market strategist at J.P. Morgan Asset Management.

Joshua Mahony, senior market analyst at IG, wrote to his clients on Monday that investors had doubts about the government’s strategy.

TRIPLE WHAMMY

“With the domestically focused FTSE 250 being hit hard this morning, there is clearly a perception within the trading community that the UK strategy is riskier and could result in a more significant economic impact despite the current lack of a hardline shutdown seen elsewhere”.

Some well-known names such as bus operator National Express NEX.L, Restaurant Group RTN.L, pub operators Mitchells & Butlers MAB.L and Marston's MARS.L have now all lost more than two-thirds of their value this week alone.

“A number of mid-caps have also issued downbeat earnings outlook statements this week and in some cases canceled planned dividend payments, which has added to shareholders’ woes,” AJ Bell Investment Director Russ Mould said.

The consensus view is that it’s a triple whammy: the virus response, faltering sterling and the never-ending Brexit saga.

“Concerns of a no trade deal Brexit are resurfacing as the June deadline to extend is approaching while UK and EU negotiations appear to have made little progress”, said Emmanuel Cau Head of European Equity Strategy at Barclays.

The weakness is also a ripple-effect of the falling pound, which hit lows on Wednesday not seen since 1985 and exacerbates the spread between the FTSE 100 and the FTSE 250.

“It’s been quite an extreme drop in the currency, and with so much of the revenue in the FTSE 100 coming from outside of the UK, the weaker currency is often a supportive factor”, argued Craig Erlam, senior market analyst at Oanda.