there is no way to know unless you know the people that did the transaction. All you really know is whether or not the open interest increased.
They would print it on an exchange, probably the ISE. Although, it seams like this isn't true at times. Still, if people know about it, the prints exists.
Trajan, Please check out this link. http://www.elitetrader.com/vb/showthread.php?s=&postid=228406&highlight=qqq+put#post228406
Here you go Trajan: T&S for April 22 QQQ puts 12:40:06 8000 0.05 + CBOE 12:39:45 9000 0.05 + CBOE 12:39:18 9000 0.05 + CBOE 12:39:03 9000 0.05 + CBOE 12:38:45 9000 0.05 + CBOE 12:38:30 9000 0.05 + CBOE 12:38:15 9000 0.05 + CBOE 12:37:57 9000 0.05 + CBOE 12:37:42 9000 0.05 + CBOE 12:37:27 9000 0.05 + CBOE 12:37:09 9000 0.05 + CBOE 12:36:57 9000 0.05 + CBOE 12:36:42 9000 0.05 + CBOE 12:36:27 9000 0.05 + CBOE 12:12:30 5000 0.05 + AMEX 12:12:24 9999 0.05 + AMEX 12:12:15 1 0.05 + AMEX 12:12:09 9999 0.05 + AMEX 12:12:03 1 0.05 + AMEX 12:11:51 9999 0.05 + AMEX 12:11:42 1 0.05 + AMEX 12:11:36 9999 0.05 + AMEX 12:11:30 1 0.05 + AMEX 12:11:21 9999 0.05 + AMEX 12:11:12 1 0.05 + AMEX 12:11:06 9999 0.05 + AMEX 12:11:00 1 0.05 + AMEX 12:10:54 9999 0.05 + AMEX 12:10:45 1 0.05 + AMEX 12:10:39 9999 0.05 + AMEX 12:10:33 1 0.05 + AMEX 12:10:27 9999 0.05 + AMEX 12:10:18 1 0.05 + AMEX 12:10:06 9999 0.05 + AMEX 12:09:57 1 0.05 AMEX
This is lunch time T&S for May 22 puts 12:39:03 500 0.25 + CBOE 12:33:15 300 0.25 + CBOE 12:31:51 200 0.25 + CBOE 12:31:48 500 0.25 + CBOE 12:31:18 500 0.25 + CBOE 12:30:45 6000 0.25 + CBOE 12:30:21 9000 0.25 + CBOE 12:30:06 9000 0.25 + CBOE 12:29:51 9000 0.25 + CBOE 12:29:36 9000 0.25 + CBOE 12:29:18 9000 0.25 + CBOE 12:29:00 9000 0.25 + CBOE 12:27:12 580 0.25 + CBOE 12:18:57 1000 0.25 + CBOE 12:18:45 9000 0.25 + CBOE 12:18:12 8500 0.25 + CBOE 12:16:33 5000 0.25 + CBOE 12:12:27 2000 0.25 + CBOE 12:11:06 3000 0.25 + CBOE 12:10:54 10 0.25 + AMEX 12:10:51 1000 0.25 + CBOE 12:10:48 9999 0.25 + AMEX 12:10:39 9999 0.25 + AMEX 12:10:30 9999 0.25 + AMEX 12:10:21 9999 0.25 + AMEX 12:10:15 9999 0.25 + AMEX 12:10:03 2000 0.25 + CBOE 12:10:03 9999 0.25 + AMEX 12:09:54 1000 0.25 + CBOE 12:09:51 9999 0.25 + AMEX 12:09:42 9999 0.25 + AMEX 12:09:27 9999 0.25 + AMEX 12:09:15 1000 0.25 + CBOE 12:09:15 9999 0.25 + AMEX 12:09:12 500 0.25 + CBOE 12:07:39 2000 0.25 CBOE
Thanks Optionsplayer, I've been thinking about this trade all afternoon, it's driving me nuts. Looks like the customer bought the time spread and sold some extra Aprils to pay for it. I would take the other side of that trade for a .20 credit. Who do I have to call to get shows? When I went through the different scenarios from a MM perspective, buying this spread was the least attractive IMO. My market at the time would have been .10 bid at .20.