Unusually high volume in SPX yesterday.

huge volume on SPX yesterday. highest I have ever seen since 2022. there were only couple of days in 2021-2022 that had such a huge volume. usually it hovers around 20k-30k total contracts. but yesterday it was 115K. whoa
could this lead to further downside? or was it pre-positioning from people who knew about today's events beforehand?
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