Updates following start of European trading

By Marc Jones

LONDON, June 11 (Reuters) - Europe's markets firmed on Thursday as reports of ongoing peace talks between the U.S. and Iran nudged oil prices down ahead of what is widely expected to be the first European Central Bank interest rate hike in nearly three years.

The pan-European STOXX 600 .STOXX and the euro EUR= both inched higher as traders papered over a one-month low for MSCI's world share index .MIWD00000PUS overnight after a near 9% plunge in Oracle's shares on Wednesday had buffeted Asia too.

As Brent reversed to $92 a barrel LCOc1 on the revived peace hopes, focus was already turning to the ECB's likely rate hike, which follows weeks of hints from policymakers, but also some increasingly weak economic data.

"For markets, the key question is how this move is framed: ‘one and done’ or the beginning of a tightening cycle?" said Julien Lafargue, chief market strategist at Barclays Private Bank.

He added that ECB President Christine Lagarde was likely to try and avoid committing to any follow-up moves to preserve "maximum policy optionality" given the ongoing Iran war.

A re-escalation in hostilities in the Middle East began this week with Monday's downing of a U.S. Apache helicopter near the Strait of Hormuz, which sparked a series of tit-for-tat attacks across Iran and on U.S. bases around the region.

Three Iranian sources and a European official told Reuters on Thursday that efforts to reach a preliminary peace deal with Washington had intensified, however, and that messages were being exchanged over a proposed 'memorandum of understanding'.

RATE EXPECTATIONS

In currency markets, the euro EUR= was flat at just over $1.15 ahead of the 1215 GMT ECB rate decision and its post-meeting press conference, where it will also detail a new set of in-house economic forecasts.

Inflation in the 21-country euro zone is already above 3%, well in excess of the ECB's 2% target, and economic growth is faltering.

The U.S. dollar index .DXY=USD, which measures the greenback's strength against a basket of six currencies, inched higher at just above 100.

That was firmly within the tight trading range it has sat in throughout the past week, having been recently pushed to its strongest levels since April when the U.S. and Iran began negotiating a ceasefire.

Market expectations on the timing of a possible Federal Reserve rate hike are also simmering. Fed funds futures are now pricing an implied 51.6% probability that the Fed will increase interest rates at its two-day meeting on October 28, according to the CME Group's FedWatch tool.

The yield on the U.S. 10-year Treasury bond was up 1 basis point at 4.5483%, while Germany’s 2-year yields DE2YT=RR, which are the most sensitive to the ECB's rate moves, rose 1.5 basis points (bps) to 2.72%. They reached 2.771% in late March, the highest since July 2024.

In the crypto markets, Bitcoin BTC= climbed 0.4% to $62,013.58, while ether ETH= rose 0.3% to $1,634.13, finding some footing after a selloff as the upcoming SpaceX IPO drove a rotation out of cryptocurrencies and other speculative assets.

Gold XAU= ticked 0.3% higher to $4,083 after a four-day run of falls that had left it at a more than 6-month low. GOL/