Spain's Ibex-35 stock index closed lower on Tuesday, posting its worst session in more than a month, amid a cautious outlook ahead of the U.S. Federal Reserve's upcoming two-day monetary policy meeting.

Markets also reacted to the announcement of the bailout of First Republic Bank by the United States on Monday and its subsequent sale to JPMorgan, which has reignited concerns about a possible global banking crisis, and to the results of Europe's largest bank, HSBC, which reported a tripling of quarterly profit above expectations.

In the macroeconomic picture, eurozone core inflation, a closely watched measure that excludes volatile food and energy prices, fell in April for the first time since January 2022, although it remained at a very high 7.3%, according to Eurostat data.

Across the Atlantic, U.S. job openings fell for the third consecutive month in March, but remained at levels consistent with a tight labor market.

Spain's selective Ibex-35 stock market closed down 159.00 points on Tuesday, or 1.72%, to 9,082.00 points, the worst session since March 24.

The FTSE Eurofirst 300 index of large European stocks lost 1.23%.

In the banking sector, Santander lost 2.59%, BBVA retreated 3.70%, Caixabank gave up 2.54%, Sabadell fell 3.47%, Bankinter dropped 4.66% and Unicaja Banco lost 1.41%.

Among the large non-financial stocks, Telefónica fell 1.89%, Inditex dropped 1.06%, Iberdrola dropped 0.21%, Cellnex fell 1.31% and the oil company Repsol lost 4.72%.

Among the rest of the electricity companies, Naturgy fell 1.98%, while Endesa dropped 0.74%.

(Information by Benjamín Mejías Valencia; edited by Javier Leira)