$NVIDIA (NVDA.US)$ I saw a lot of big buy-ins at the end of ...
$NVIDIA (NVDA.US)$I saw a lot of big buy-ins at the end of yesterday's session, and today's pre-market rush, which made me feel strange. Call and put win win today
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tyson tyson : Xiaobai, please ask where can I see Call & Put's trading volume
Lu Lulu OP tyson tyson : If you don't understand, you can ask customer service