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Comment by chii

14 hours ago

i figured these ETF providers have to have sufficient capital in reserve to allow for it perhaps? I mean, how does it work if they defaulted on those options by not being able to take delivery? Who pays?

Some ETFs can't go negative because they're moving say, stock in oil refiners, oil research, etc. and they've got a model to try to follow the motion of oil futures based on investments in those stocks. So for them this sort of chaos is not good of course, but they don't have scary red numbers everywhere and people who might jump out of a window.

In some cases there is basically a bucket shop (hopefully not literally, those are illegal) and so you're betting against somebody with lots of capital, but in that scenario it can definitely go very bad and it's important to read your fine print. I believe in 2020 some funds pointed out that in their fine print it said they get to choose not to follow a month's oil delivery if they need to, so, you expected $15M for the June oil because it went negative as you'd hoped, but too bad we've decided to roll that over to July oil, and that's going to lose you money as you have to wait a month longer and get worse results.

That sort of thing is obviously infuriating for an investor, but as with gambling firms who won't pay (and this happens a lot if you win serious money gambling, e.g. Oops, when you gave us $100 we forgot to ask for valid ID, but now that we owe you $150 000 because you got lucky we've remembered - without ID actually the bet was illegal, so here's the $100 back and no hard feelings) they get a reputation for not paying and that does eventually hurt them.