Yahoo Finance, 09 April 2021
The move will add to similar controls put in place since August 2016, first on extreme gyrations in equities and a year later on derivative products. They followed a series of events that provoked regulatory probes into market misconduct such as price manipulation and pump-and-dump scandals.
“The volatility control mechanism (VCM) has worked as intended without any negative feedback from the market,” said Tom Chan Pak-lam, chairman of Hong Kong Institute of Securities Dealers, the local brokerage industry body. “In many cases, sharp and sudden price movements were smoothed out as the cooling-off periods allowed participants to react while trading continued.”
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Florida is suing the Centers for Disease Control and Prevention to resume U.S. cruise sailings, calling the lockdown “arbitrary and capricious” and citing hundreds of millions of dollars in potential losses for the state economy.
Markets were shaken but unstirred by the collapse of Greensill and the Archegos unwind trades. Credit Suisse is the ultimate loser of the two scandals – reputationally damaged and holed below the water line. The bank is paying the price of years of flawed management, poor risk awareness. and its self-belief it was still a Tier 1 global player. Its’ challenge is to avoid becoming the Deutsche Bank of Switzerland – which it will struggle to do without a radical and unlikely shakeout. 
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In the aftermath of the Archegos blow up, the biggest nightmare on Wall Street – where there is never just one cockroach – is that (many) more Archegos-style, highly levered “family office” blow ups are waiting just around the corner.
The collapse of UK-based supply chain finance firm Greensill Capital continues to reverberate. In Germany the private banking association has paid out around €2.7 billion to more than 20,500 Greensill Bank customers as part of its deposit guarantee scheme after the bank collapsed in early March. But the deposits of institutional investors such as other financial institutions, investment firms, and local authorities are not covered. Fifty municipalities are believed to be nursing losses of at least €500 million. 
The GameStop saga stopped the stock market in its tracks earlier this year, with wealthy hedge funds losing millions of pounds. The move was orchestrated on a subreddit thread, with vast numbers of average investors joining forces to push up the share price.
Goldman Sachs managed to avoid billions of dollars in potential losses from the implosion of highly levered hedge fund Archegos Capital Management by breaking ranks with other syndicate banks to dump large blocks of shares representing Archegos’s exposure to a coterie of tech and media names. When the dust settled, the bank told shareholders any losses would be insignificant, while Credit Suisse, the bank with perhaps the biggest exposure, said Tuesday it has booked a nearly $5 billion loss. 