The former head of RBC’s proprietary statistical-arbitrage trading desk is looking to launch his own fund in September.Tebogo Phiri is aiming to begin trading with at least $50 million from a select group of investors via his New York firm, qPULA Trading Management. Its fund, qPULA Stratus Fund, will focus at least initially on U.S. equities, but it plans to expand its investments eventually to other countries and asset classes. Once the...