The iShares Investment Grade Systematic Bond ETF offers a systematic strategy for selecting investment-grade corporate bonds, focusing on credit quality and risk-adjusted yields. IGEB has a lower duration than LQD, resulting in less volatility and better performance when interest rates rise, but takes on more credit risk. Despite IGEB's marginal outperformance, current macro conditions with historically tight IG spreads make it an unattractive buy at this time.