Harbor Scientific Alpha Income ETF (SIFI US) – Investment PropositionHarbor Scientific Alpha Income ETF (SIFI) offers a systematic, research-driven approach to multi-sector fixed income designed to balance current income with total return. The strategy applies an evidence-based process to allocate across corporate credit, securitized sectors, Treasuries, and related derivatives, dynamically adjusting duration and credit exposure as risk–reward shifts. Portfolio construction emphasizes broad opportunity capt ...