Unusually active option classes on open February 24th

Unusual total active option classes on open include: Weibo (WB), Adobe (ADBE), Marvell (MRVL), Capital One (COF), Taiwan Semi (TSM), iShares DJ US Real Estate Index Fund (IYR), iShares Russell 2000 ETF (IWM), Boeing (BA), PowerShares DB US Dollar Index Bullish Fund (UUP), and Bilibili (BILI).