By Josie Cox and Tommy Stubbington 

Russian markets Wednesday reacted with relief to the U.S. and the European Union adopting tougher economic sanctions against Russia, suggesting that investors had largely prepared for the latest measures.

But wider European stock markets fell amid some patchy earnings reports, falling further after an upbeat reading on the economy failed to spur gains on Wall Street.

Moscow's Micex stock index closed 0.9% higher, having climbed as much as 2% earlier in the session. The ruble recovered from an initial dip to trade 0.6% higher against the U.S. dollar at 35.60.

The U.S. now has sanctioned five out of Russia's six largest state banks, but even though the measures are expected to sharply restrict the ability of state-controlled banks such as Sberbank and VTB Group to raise capital on European markets, their debt didn't move dramatically.

Sberbank bond yields fell on the day, while VTB bonds edged higher, according to Tradeweb. Russian government bond yields also fell. Russia's dollar bond due September 2023, for example, was yielding 4.93%, about 0.04 percentage point lower than Tuesday's close. Lower yields reflect higher prices.

Shares in Sberbank added 0.7%, while shares in VTB, which relies heavily on foreign-debt financing, lost 1.3%.

Barclays economists wrote in a note to clients that the sanctions by both the EU and the U.S. appear to have been "widely anticipated by markets."

They do highlight, however, that market issuance of Russia banks and companies--having been light since around the end of January--has ground to a complete standstill more recently. The latest sanctions news, they say "can only add more pressure to an already challenging operating and financing environment."

Vladimir Osakovskiy, an economist at Bank of America Merrill Lynch, meanwhile notes that a rise in borrowing costs and drop in investments into the country "could push the economy into a 0.2% recession this year."

In addition to banks, some of the U.S. sanctions are designed to penalize Russia's energy sector by restricting the export of technology that could be used to expand Russia's deep-water, Arctic offshore or shale oil production. But administration officials said the restrictions were designed to avoid affecting current energy production capabilities.

Shares in energy giant OAO Rosneft climbed 1.7%. Stock in BP PLC, which owns a near 20% stake in the Russian state-controlled oil producer, lost 0.5%.

Derek Halpenny, European head of currency research at Bank of Tokyo-Mitsubishi UFJ Ltd., similarly noted that the possible severity of them should not be underestimated.

"This latest wave of sanctions certainly appear to be the toughest yet and given the Russian economy was already on the verge of recession, these latest measures will likely tip the economy into a contraction that could turn severe," he said.

Portfolio manager Robert Simpson at Insight Investment said that many of the sanctioned entities, including the government, have healthy balance sheets, meaning that the outstanding debt looks cheap.

"But that is only on the assumption that the political situation doesn't deteriorate from here and there's no further ramping up of sanctions," he said. He added that he is currently running a negative position in both Russian credit and the Russian currency. Insight manages about $3.4 billion in emerging market debt.

Elsewhere, the pan-European Stoxx Europe 600 index closed 0.5% lower.

Firms including Total and Holcim were among the biggest fallers after reporting earnings that disappointed investors.

During the second-quarter earnings season so far, more than 47% of companies that have published results have fallen short of market profit expectations. That compares with a figure of just under 24% for the S&P 500.

This gap is beginning to worry some investors.

"Whilst the Eurozone recovery has been on track so far, disappointing earnings pose a huge risk to this story," said Bill Street, Head of Investments EMEA at State Street Global Advisors.

"We expect a massive loss of confidence in Europe if the second quarter earnings season disappoints," Mr. Street added.

Ben Edwards

contributed to this article

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

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