The R&D Index for the week ending July 20, 2018 closed at 4,575.69 for the 25 companies in the R&D Index. The Index was up 0.06% (or 2.71 basis points) from the week ending July 13, 2018. Fifteen R&D Index companies gained value last week from 0.03% (Astra Zeneca) to 4.43% (Novartis). Ten R&D Index…