Ah, reading a bit more I see it's related to clearing houses. That could explain the earlier comment about how GME (and AMC and KOSS) could start some sort of cascade that could affect different whole (and separate) exchanges.
https://www.trustnodes.com/2021/01/28/clearing-houses-the-too-big-to-bail-vulnerability-revealed-by-gme?PageSpeed=noscript
@Greenbank started
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Ah, reading a bit more I see it's related to clearing houses. That could explain the earlier comment about how GME (and AMC and KOSS) could start some sort of cascade that could affect different whole (and separate) exchanges.
https://www.trustnodes.com/2021/01/28/clearing-houses-the-too-big-to-bail-vulnerability-revealed-by-gme?PageSpeed=noscript