Expo Holdings Inc. (EXPH)

[xray44b9]

All of these trades, reported after hours were, according to my L2 legend, something called "(Z) Sold last sale - same as OPRA OSEQ". The OSEQ must mean out of sequence.

You don't see much reported after hours on this stock, ever, so it's definitely weird. The OPRA thing is Options Price Reporting Authority.

From opradata.com:

"OPRA is a computer system that disseminates, on a current and continuous basis, information about transactions that occurred on the options markets."

What all of this means is a total guess (options activity happening for EXPH???) but if you're interested here's a link to OPRA:

http://www.opradata.com/specs/data_recipient_interface.pdf

It's probably simply out of sequence trades being reported late but the OPRA thing is odd indeed.