Investing only on market dips generates better returns than regular systematic investment plans (SIPs), producing an extended internal rate of return (XIRR) of 12.95% over the past 10 years, an ET analysis found. If an investor used only SIPs, they would have seen an XIRR of 11.29%. However, combining both approaches could provide a return of 12.37%, outperforming simple SIPs. Nonetheless, while buying the dip marginally outperformed regular SIPs, it can be challenging to monitor the market continuously over the full investment term, making regular SIPs a preferred option.