Efforts by regulators and financial executives to ease contagion fears sparked by last week's collapse of Silicon Valley Bank (SVB) had brought some brief stability to markets but worries over Credit Suisse on Wednesday brought back jitters over banking crisis.

Here are some comments from market analysts:

MATT SIMPSON, SENIOR MARKET ANALYST, CITY INDEX, BRISBANE

"Like Deutsche Bank, Credit Suisse has been a 'failing bank' as long as I can remember. Yet, both are still here. And now, CS has the clout of (the) Swiss National Bank covering its back, which is a central bank that doesn't not mess around in the time of crisis."

"So ultimately, I think this is a good thing for market sentiment. I'm just not sure if or when investors will draw the same conclusion with all the emotion in the air. There's still very much a feeling of react first, think later. And that's not always compatible with logic."

GARY NG, SENIOR ECONOMIST, NATIXIS CORPORATE AND INVESTMENT BANK, HONG KONG

"Investors may be worried about SVB and Credit Suisse for different reasons, but both cases suffer from the side effect of high-interest rates. The underlying economic stress may emerge more frequently, so as liquidity, and it is possible to see more black swans in an uncertain environment."

"Quick actions from central banks can mitigate the adverse impact on a case-by-case basis, but it is also time for the world to accept higher-than-average inflation and keep financial stability."

DAMIEN BOEY, CHIEF EQUITY STRATEGIST, BARRENJOEY, SYDNEY:

"It does help. It removes an immediate risk. But it confronts us with another choice. The more we do this, the more we blunt monetary policy, the more we have to live with higher inflation -- and what is it going to be?

"Do bailouts make things better? On one hand, you are removing a source of risk to the markets, which is a clear and present danger. On the other hand, we are feeding into this paradigm of monetary policy bucking within itself."

CHRISTOPHER WONG, CURRENCY STRATEGIST, OCBC, SINGAPORE

"The concrete response from Swiss authorities may help to shore up sentiments in the interim. That helps with a modest bounce in the euro and some risk-proxy in Asia ex-Japan. But it remains to be seen if they are sufficient to shore up confidence."

(Reporting by Tom Westbrook, Rae Wee and Ankur Banerjee in Singapore; Xie Yu in Hong Kong)