The euro zone’s annual rate of acceleration remained during a lowest turn in some-more than 4 years in June, underscoring a border of a hurdles still confronting a executive bank and indicating to some intensity debility in a euro.

The European Union’s statistics organisation pronounced Monday that a rate of acceleration opposite a 18 members of a euro section remained unvaried during 0.5% in June, imprinting a ninth true month in that a acceleration rate was next 1%.

Alarmingly low acceleration has already prompted a European Central Bank to cut seductiveness rates and betray a package of serve easing measures progressing this month.

Although a marketplace isn’t awaiting President

Mario Draghi

to vigilance uninformed measures during Thursday’s process meeting, justification of steadfastly low acceleration could inspire bets on some-more assertive written involvement by a ruling council, strategists during Citigroup wrote in a note.

“We design euro rates to sojourn underneath vigour and that should underscore a downside risks for a singular currency,” they said.

The Stoxx Europe 600 index was trade broadly unvaried on a day by midmorning, carrying progressing in a event modernized 0.3%, while a U.K.’s FTSE 100 clung on to a 0.1% gain. France’s CAC mislaid 0.1% and Germany’s DAX combined 0.3%.

The pan-European index has gained only over 4% so distant this year amid some sketchy justification of an mercantile liberation in Europe and helped by serve impulse measures from a ECB.

Meanwhile, holds have rallied. The produce on 10-year German supervision debt was 1.25% Monday, tighten to a lowest in some-more than a year. Yields tumble as prices rise.

“It is transparent that a equity marketplace is still behaving as if we are in a clever cyclical liberation we’ve all been watchful for. At a same time, however, a bond marketplace is still trade as if we are streamer for a cyclical slowdown,” pronounced strategists during Rabobank.

In banking markets, a euro was solid opposite a dollar during $1.3651. The common currency, that fell forward of a prior ECB meeting, has unsuccessful to break serve and stays roughly during a turn where it started a year.

In a U.S., a SP 500 index is indicated opening 0.4% lower. Futures, however, don’t indispensably simulate moves after a opening bell.

Bulgarian shares, meanwhile, bounced behind Monday, recuperating a infancy of final week’s estimable losses, buoyed by a supervision extenuation a credit line of 3.3 billion levs ($2.3 billion) to pivotal lenders. The nation suffered a run on two banks final week, brought on by what a executive bank has dubbed “rumors and antagonistic open statements”.

Bulgaria, a European Union’s lowest nation per capita, has suffered scarcely a year and a half of domestic misunderstanding due to a supervision lacking a clever mandate, and widespread open displeasure with viewed crime in open administration.

Royal Philips NV was a biggest gainer on a European batch market, after a association announced it is seeking investors for a Lumileds and automotive lighting business, that it skeleton to turn into a stand-alone association within a categorical group. Société Générale analysts praised a pierce observant it might “enable a organisation to remove some-more value from this business”.

In line markets, Brent wanton oil was 0.4% reduce during $112.81 a barrel, and bullion was down 0.3% during $1,316.00 an ounce.

Write to Tommy Stubbington during tommy.stubbington@wsj.com and Josie Cox during josie.cox@wsj.com