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Re:Why is the stock market rallying when the economy is so bad? by javagram on Sunday May 10, 2020 @09:47PM (#23138121)
Ok, but take the airline sector for example. Maybe one or more of the airlines will go bankrupt. Maybe they all somehow survive.

The price of Delta, United, American etc. gets discounted because the risk of each individual stock being bankrupted is high. But they don’t go to 0, because there’s also a chance each of the airlines might somehow survive to next year and go back to profitability.

If all the airlines go bankrupt, someone will step in and create new companies in the sector by buying up the bankrupt companies’ physical assets, but the existing shareholders will lose everything despite the sector itself being viable in the long term.

Re:Why is the stock market rallying when the economy is so bad? by matthewdgreen on Monday May 11, 2020 @08:12AM (#23141254)
It’s much more likely that the other incumbent airline businesses just soak up that business, or the loss of competition sees price hikes across the board. Airlines are hard to spin up.

TL;DR if the sector as a whole is healthy, and you’re willing to balance an investment portfolio across the whole sector, then your exposure to future revenues should be fairly healthy even if one company goes bankrupt. But you’re absolutely right that prices don’t behave as though this is the case.