Real returns measure what your investment actually earns after subtracting inflation. If your savings account pays 12% but inflation runs at 28%, you've lost purchasing power. In Nigeria, where consumer prices can double in under four years, nominal returns are deeply misleading. Real returns tell you whether your money's genuinely growing.
Nigeria has experienced double-digit inflation for most of the past decade, with the NBS headline rate exceeding 30% at several points since 2023. That changes the maths entirely. A Treasury Bill yielding 18% sounds attractive until you realise inflation is running at 28%. Your real return isn't positive at all; it's roughly negative ten per cent.
This isn't a theoretical concern. Millions of Nigerian savers hold fixed deposits, money market funds, or T-bills thinking they're earning returns. They are, in nominal terms. But their purchasing power, the actual number of goods and services that money can buy, is shrinking year after year. Understanding real returns is the difference between feeling rich and being rich.
The simplest formula is: real return equals nominal return minus inflation. If you earned 20% on a T-bill and inflation was 25%, your real return was roughly negative 5%. For more precision, the Fisher equation divides (1 + nominal return) by (1 + inflation rate) and subtracts one. The difference between the two methods is small when rates are low but becomes significant at Nigeria's inflation levels.
You'll need a reliable inflation figure. The National Bureau of Statistics publishes the Consumer Price Index monthly. That's what Venoble's VNG-CRR index uses to deflate nominal T-bill returns into real terms.
Venoble's Cash Real Return Index (VNG-CRR) tracks the real, inflation-adjusted return from continuously rolling 91-day Nigerian Treasury Bills. It answers a simple question: if you'd parked your money in the safest naira-denominated asset available, would it have grown in real terms?
The answer, for long stretches, is no. VNG-CRR has 205 monthly data points stretching back over 17 years, and the index shows extended periods where cash savers were losing purchasing power every single month. Without this kind of data, you're guessing. With it, you can quantify exactly how much damage inflation has done to conservative portfolios.
Different Nigerian assets behave very differently once you strip out inflation. Equities, measured by the All-Share Index, have occasionally beaten inflation handsomely during bull runs but also delivered savage real losses during prolonged downturns. Fixed income instruments like T-bills and bonds have struggled to keep pace with inflation since 2020.
Real estate in Lagos has generally maintained purchasing power, though it's illiquid and hard to measure precisely. The dollar, often Nigerians' preferred store of value, has delivered strong real returns measured in naira terms, but that reflects currency depreciation rather than productive investment. Every serious portfolio analysis should start with real returns, not nominal ones.
Almost certainly not. Most Nigerian savings accounts pay between 1% and 4% annual interest. With inflation running above 25%, your money loses purchasing power every month. Even high-yield fixed deposits and money market funds have struggled to match inflation since 2022. Venoble's VNG-CRR index tracks this gap precisely for T-bill holders.
Any positive real return is meaningful in Nigeria's current environment. A 2% to 5% real return would be considered solid for fixed income. For equities, investors typically target real returns above 10% to compensate for the additional volatility. The challenge isn't the target; it's finding instruments that reliably deliver positive real returns at all when inflation exceeds 25%.
Take your T-bill yield, say 19%, and subtract the current NBS inflation rate, say 28%. Your approximate real return is negative 9%. For a more precise figure, use the Fisher equation: divide 1.19 by 1.28, then subtract 1, giving negative 7.0%. Venoble's VNG-CRR index does this calculation monthly using 91-day NTB stop rates and NBS CPI data, so you don't have to do it yourself.
Banks have no regulatory obligation to display inflation-adjusted returns, and doing so wouldn't exactly be good marketing. A deposit offering 5% looks appealing on its own. Showing it as negative 23% in real terms would discourage depositors. That's precisely why independent benchmarks like VNG-CRR exist: to give savers the full picture that the banks won't volunteer.