As part of its annual reconstitution, the Nasdaq 100 Index ($IUXX) will add data storage product maker Western Digital Corporation (WDC) before the market opens on Dec. 22. Addition to an index is seen as a positive development for any stock because it results in the stock being added to the funds tracking the index. In this case, Western Digital’s stock is set to be added to more than 200 index-tracking products that the Nasdaq 100 underpins, including the Invesco QQQ Trust (QQQ). In light of this, we t ...