1 EXHIBIT 10.31 DEVELOPMENT, SUBCONTRACT, AND OPERATIONS AGREEMENT This "Development, Subcontract, And Operations Agreement" ("Agreement") is effective as of May 17, 1999 ("Effective Date"), by and among OptiMark, Inc., a corporation organized and...Development, Subcontract, and Operations Agreement • April 17th, 2001 • Optimark Technologies Inc • Services-business services, nec • New York
