How this works: Purchase NAV is the actual declared NAV on your Start Date (or the next working day, if the market was closed that day). For SIP, this shows the first installment's NAV — each month's own installment uses that month's own NAV internally. Current NAV is the most recent declared NAV on or before your End Date. Return % shows true CAGR for Lumpsum, and XIRR for SIP — XIRR is the correct way to measure returns when money goes in on different dates, and is the same method used industry-wide for SIP reporting. Click "Show Table" in the Remark column on any SIP row to see every individual installment.