Investors may trade in the Pre-Market (4:00-9:30 a.m. ET) and the After Hours Market (4:00-8:00 p.m. ET). Participation from Market Makers and ECNs is strictly voluntary and as a result, these ...

Metamodeling in engineering, mathematics, among other disciplines, is the analysis, construction and development of the frames, rules, constraints, models and theories applicable and useful for ...