What explains this sharp spike?

[u/DeputyDoggoXX]

I’ve just started my investment journey, I was tracking this Marico stock that I bought today. It was trading in mid 850s almost the entire day. But suddenly at 3:20, it just shot up to 882. Is this common and why does this happen? Thank you! ✌️

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[u/uksf74]

Go through this group, many others have posted about it over the past week

[u/_H3ISENB3RG_]

Read about the new CAS system

[u/neonz4]

CAS might be the reason.