RSM's Brexit Stress Index moves higher

The RSM Brexit Stress Index moved higher again last week, as the market processed conflicting central banking trends: global equities pushed higher on an expected US rate cut by the Federal Reserve and a quick turnaround in the UK bond market as the slim probability of a base rate cut by the Bank of England grew even smaller.

The composite index, which measures economic stress surrounding Britain’s impending departure from the European Union, closed at 0.26 on Friday from 0.16 a week earlier (see Figure 1). The index remains at slightly above-average levels of stress, but within a range of normality in terms of asset-price performance and volatility. Elevated levels of stress indicate a less-accommodative climate for investment and the potential for lower economic growth in the months ahead.

Figure 1

Brexit stress index and Brexit timeline since 2012

Currencies have perhaps become the most pragmatic among the markets, losing ground for the tenth week in a row. In all, the pound has lost 16 per cent of its value since 2015 when the Conservatives held onto power on the promise of Brexit (see Figure 2). As would be expected, retail prices moved higher from 2015 to 2017 in response to the weakening currency, which continued until the exchange rate plateaued and a drop in petroleum prices in late 2018 pushed the inflation rate lower.

Figure 2

The British Pound and retail price inflation

Nevertheless, the relationship between a weakening pound and higher retail prices appears to have been re-established of late, albeit from a lower level. The pound could weaken further if economic growth suffers during the transition away from Europe’s Single Market. Consumers could expect higher retail prices, particularly if shortages were to occur if the UK’s departure from the EU disrupts the free flow of trade.

Looking ahead, the EU has extended the UK’s deadline to depart from the bloc to 31 October, which leaves a period of continued uncertainty as leadership of the Conservative Party takes shape and as the EU’s response to future government proposals become clearer.

Performance of index components

The RSM Brexit Stress Index is made up of six components; they include the British pound-euro exchange rate and its volatility, the FTSE 100 and its volatility, the gilt yield spread and the UK corporate bond spread.

The pound was only slightly lower this week against the euro—which was hit by concerns over a manufacturing slowdown—and against an index of its major trading partners. The pound remains 5 per cent lower in value since the elections in early May. Volatility increased during the week.

The FTSE lost 0.7 per cent during the week, after five weeks of gains. Equity market participants are balancing the impact of a global slowdown and the reaction by the monetary authorities.

The yield on 10-year gilts increased 9 basis points, nearly recouping last week’s losses and mimicking yield increases in the U.S. and Germany. The UK yield curve remains inverted, but only out to five-year maturities as three-month yields moved 8 basis points higher on diminished expectations of a Base Rate cut. Corporate spreads narrowed for the sixth week in a row.

Brexit - time to plan

There is no doubt that Brexit will have far-reaching impacts, with reverberations felt across every sector. Many in the business world will understandably be concerned.

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