Look, this is perhaps the most traded future contract in the world. There are billions in nominal value rolling over all the time, it's just business as usual.

Look, this is perhaps the most traded future contract in the world. There are billions in nominal value rolling over all the time, it's just business as usual. The last hour of Friday is especially important because participants hedge their portfolios before the weekend starts and all markets are closed. US is the last big market to close each Friday. What really happened is that people traded contracts like always, and then big events happened. And one party of the transaction won, the other lost (on this particular position; you don't know their full portfolios nor you know their reasons for getting into that trade). Matt Levine (see Hanky-panky 2): https://www.bloomberg.com/opinion/articles/2019-10-18/half-a-share-of-stock-is-better-than-nothing https://www.bloomberg.com/opinion/articles/2019-10-18/half-a... I doubt the CME cares much about the "problem" to sue some low quality publisher. I'd say it warrants no more from them than this short paragraph written by their PR intern.