DDS; strkPx and strkQt

, ,
1

Imported from previous forum

2

What is DDS ? and whats the difference between strkPx and strkQt ?
Whats the impact of OSI change on these two fields.?

Thanks

3

What is DDS ? and whats the difference between strkPx and strkQt ? Whats
the impact of OSI change on these two fields.?

Thanks
DDS is the interface to the OCC clearing system. It uses FIXML as its data format and provides several methods of data transfer in both batch and real-time modes. You may have heard of NDM or FTP+, these are for batch transfers.

As of today StrkPx(202) and StrkQt(user defined tag) are both used by the OCC to describe a strike price. StrkQt provides a fractional representation, eg. “31 5/8”.

When OSI takes effect, all equity strike prices will be converted to decimal format. Accordingly StrkQt will be removed from all messages. StrkPx, currently in a decimal format, will not change.

I hope this helps.

-Greg