Data quality

Every figure on AfriRadar can be traced to SEC Nigeria's own weekly file, and anyone can check it. This page says what we check, what an independent check found, how to repeat it, and every figure we withhold or mark.

What we check before publishing

  • The date in each report's title must match the date on its current-week columns.
  • The funds in each category must add up to the sub-total SEC prints for that category, and each total must match SEC's own category summary sheet.
  • A report that fails any check is not published. The site keeps the last report that passed, and we read the failed one by hand.
  • Every row keeps the figure SEC printed beside any figure we withhold or rescale, in the CSV downloads.

An independent reconciliation

On 12 November 2026, an independent reviewer compared SEC's own file for the week ended 30 October 2026 with our published CSVs: 218 of 218 funds matched on NAV, unitholders, both yields as SEC printed them, and the manager's name as printed, with zero differences.

All nine category totals equal SEC's own sub-total cells to the naira. Those nine categories plus SEC's sub-total for exchange-traded funds (₦34,262,187,540.22) reproduce SEC's grand total of ₦10,093,569,772,811.83 exactly.

Check it yourself

  1. Download SEC's report for a week from SEC's weekly NAV page. Our latest is the week ended 30 October 2026: SEC's file for it.
  2. Download the matching CSV from any category page, such as money market funds.
  3. Match each fund by name. Compare nav_ngn, unitholders, yield_wtd_as_printed, yield_ytd_as_printed and manager_as_printed with the current-week columns of SEC's sheet.
  4. Add up a category's nav_ngn and compare it with SEC's sub-total row for that category.

If anything differs, email [email protected] with the fund and the week. We check it against SEC's file within two working days, and any correction is published and flagged, never made silently.

What is covered

A week's total is the sum of SEC's sub-totals for the eight mutual fund categories and the specialised funds. SEC's report also lists exchange-traded funds and, in 2025, infrastructure funds in sections of their own; those are not in our figures. Our history runs 96 weeks, from 3 January 2025 to 30 October 2026.

Weeks recovered from a later report

  • The week ended 31 October 2025: SEC published no report of its own for it. It is read from the previous-week columns of SEC's report for the week ended 7 November 2025, with the same checks, and every row of it carries the flag recovered_week.

Figures we withhold or mark

Across the 19,043 fund rows in our history, counted from the data on every build:

  • 214 week-to-date yields and 6 year-to-date yields are not shown, because they cannot be real (flags wtd_dropped, ytd_dropped). The figure SEC printed is kept in the CSV.
  • 103 year-to-date yields above 100% are shown as printed with a mark (flag ytd_unusual).
  • 3 week-to-date and 2 year-to-date yields were typed as whole numbers by the manager and are shown as percentages (flags wtd_scaled, ytd_scaled).

The rules behind each flag are on the methodology page.