Matt Levine's daily commentary on financial matters frequently makes me giggle. Here is a particularly good one:

“Rat in Broth Wipes $190 Million Off Restaurant Chain’s Value” is the unappetizing headline here: Shares of Xiabuxiabu Catering Management, a Chinese public company, lost 12.5 percent of their value in two days after, you know, Rat in Broth. Rat in Broth will do that. (There’s a picture.) But the thing about Rat in Broth is that anyone could put a Rat in Broth, leading at least one person to speculate on Twitter about the possibility that this could be “intentional share price manipulation.” [ … ]

One thing I will say for short sellers is that many of them really do believe their (standard, correct) claims about their role in financial markets: that they make markets more efficient, deflate bubbles, root out fraud and delusion, and generally make the world better with their unpopular and negative activity. They see it as a noble but misunderstood calling.

Obviously you could approach short selling in a totally different way: You could short a perfectly good company and then try to blow up its factories, murder its executives and put rats in its broth. This would be strictly inefficient, not only from a financial-market perspective but also from a product-market one: If this was really how short selling worked, then all our cars would fall apart and all of our broth would have rats in it.

Matt Levine at Bloomberg:

In other totally normal unicorn rapid valuation-doubling news:

SoftBank Group Corp. is in discussions to invest another giant slug of capital in WeWork Cos., with a deal that would value the shared-office company at $35 billion to $40 billion, according to people familiar with the matter.

Such an investment would roughly double WeWork’s $20 billion valuation, set last August when SoftBank invested $4.4 billion in the company.

I have to say, if SoftBank is going to become the entire market for hot private technology startups, then every valuation is going to be marked-to-SoftBank, and the numbers will start to lose their meaning. 

SoftBank: Would you like some money at a $10 billion valuation?

Startup: Sure.

SoftBank: Here you go. Would you like some more at a $20 billion valuation?

Startup: Sure.

SoftBank: Here you go. How about a $40 billion valuation?

Startup: This is dumb but it’s not like we’re going to say no.

SoftBank: Here you go.

Startup: Thanks brb buying a yacht.

SoftBank: Our mark-to-market investment returns are tremendous, we must be good at this.