CME Market Advisory on Block Trading - some changes in Block Trade rules are coming October 1 that have significant impacts
The CME issued an extensive market advisory here that covers the CME/CBOT/NYMEX/COMEX markets. The advisory is 13 pages and the cover note does hit the highlights. Just to make it clear - this is a change to a prior advisory in May and includes all the information in that notice PLUS several new items. These are:
1. If a CME product is block traded in a strategy with a non-CME product (e..g, I trade a block on CME WTI and a block on ICE Brent as a paired set of blocks), the CME leg of the block will be considered as an "outright" on the CME leg and the "fair and reasonable" pricing test for the block will only consider the CME product price. So if the spread would create a CME price that is outside the fair and reasonable range, the block is improper.
2. Pre-hedging advisory content is changed significantly. The points DCM feels are major are: