- Trading halts are there to let people catch their breath, supposedly. More likely it's in order to be able to announce news, because without news what's gonna change?
- The news everyone wants now is fiscal stimulus. From what I can see, there's a lot of consumers whose personal finances will blow up if the economy shuts for a couple of months. So perhaps what needs to be announced needs to be aimed at those types of people. Certainly people will protest if fiscal stimulus means just handing money to people and companies who aren't in dire straights. How about a rent break or something drastic like that?
- The effect of systematic strategies should not be underestimated. By that I'm lumping passive index trading in with various forms of systematic rules based trading (my specialty actually). Things that hop on the momentum bandwagon will make the move more extreme. They will also tend to whipsaw on reversals. There's also risk parity funds, which now need to reposition based on risk being higher.
- Also you have to figure on short options players getting blown up on this kind of thing. (Vol trading was my other specialty). Basically what I mean is in recent years it's been quite enticing to simply sell options to pick up premium, which normally is a bit too expensive in relation to the expected volatility (ie it seems smart a lot of the time). Of course nothing is free, and when there's a blowout the short gamma guys are also pushing the market the wrong way.
- There's at least one major investment bank that thinks this will end soon, markets to recover in H2, and no systemic risk. (Got that from a friend chain so grain of salt.) Not sure what to think, since this is more a question of how politicians will respond than ordinary day-to-day reading tea leaves.
Interesting times.