The Sprott Zacks Gold Miners Index was co-developed by Sprott Asset Management LP and Zacks Index Services. The Index uses a transparent, rules-based methodology that is designed to identify gold stocks with attractive investment merit. The methodology was developed by leveraging Sprott's experience as a long-time gold sector investor and Zacks research capabilities. The Index is designed to incorporate the factors that have historically been strong predictors of long-term performance of gold stocks. The 4-step process of selecting the stocks, weighting them in the Index and rebalancing quarterly ensures that the Index reflects the most current factor scores.