oimatey already posted a reply, but for clarification, it looks like only 40,000 of each of the puts (QQQ 30 and QQQ 33 puts in January) traded via CBOE (meaning only 40K of each are listed on today's volume). The rest were at other exchanges.
This leads to a couple questions. There's still huge numbers of QQQ puts out there through January, though mostly at 34 and under. While these appear to be support, I wonder if there's anyway to know how many are actually straddles like this one? This appears to be a bearish bet, though not as bearish as 180K of open interest would imply....
the freep