Poor fourth-quarter figures and the expected impact from the coronavirus have sent the single currency down against major currencies.
The CNMC says the transaction does not pose a risk for competition in the sector in Spain.
Index provider MSCI has conducted a stress test showing that a portfolio composed of 60% equities and 40% bonds may abandon up to 3% returns because of the coronavirus impact on markets.
The pan-European stock exchange operator chairman Stéphane Boujnah said Euronext is "assessing the situation from all angles."
“There will be no general, global, permanent equivalence,” the EU’s chief negotiator said in reply to UK government's pressure.
Denmark's new short-term reference rate DESTR, which is transaction-based, is currently being tested.
Members of the European Parliament have raised the issue again of how fair the central bank’s purchases are with regard to issuers.
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