RE: Chinese regulators ask some U.S.-listed firms to prepare for audit disclosures24 Mar 2022 12:27
This is a huge step amounting to an Olive tree from Chinese regulators, also another separate source of corroboration.
The big drop witnessed last week was caused by panic selling accompanies by media reports of 'unavertable Chinese stocks', indeed JP Morgan as evidenced below sold almost half their holding in tandem with their own bearish note.
My own view is this stand-off has been overhanging the market for sometime, perhaps as much as three years when first mooted, if it gets finally resolved it will demonstrate a huge commitment from the Chinese side to cooperate with the outside world, a big step imo.
A note on arbitrage, it may well be that HK market follows the US to some degree, possibly because its difficult to arb when both markets are not open at the same time, this can be seen with UK until 1.30/2.30 when NASDAQ opens.