FRANKFURT, Germany--(BUSINESS WIRE)--Market Vectors Index Solutions (MVIS) today announced an update of the index guide to extend enhanced selection rules to its Market Vectors equity indices. Starting with the next quarterly review in September, the following new index rules will be applied: Current index components will be deleted from all equity indices except small-cap/junior and fixed component indices if they rank between the 98th and 100th percentile of the index selection list. Current