Citation

72 FR 58694

Canonical document for this Federal Register citation.

Self-Regulatory Organizations; Chicago Board Options Exchange, Incorporated; Notice of Filing of a Proposed Rule Change as Modified by Amendment No. 1 Thereto To Allow the Exchange To List Up to Seven Expiration Months for Broad-Based Security Index Options Upon Which the Exchange Calculates a Constant Three-Month Volatility Index Tuesday, October 16, 2007 72 FR 58694