Factor investing is a strategy that selects stocks based on measurable characteristics, called factors, that have historically driven returns. Common factors include value, size, momentum, and quality. Instead of picking individual companies, you're betting on structural patterns. In Nigeria, where data gaps make stock-picking unreliable, systematic factor approaches can exploit inefficiencies that discretionary managers miss.
A factor is a measurable attribute of a stock that explains its returns. Value stocks, those trading cheaply relative to their fundamentals, have outperformed expensive stocks across decades and geographies. Small-cap stocks have beaten large-caps over long periods. Stocks with strong recent momentum tend to keep rising. These patterns aren't random; they reflect compensation for risk, behavioural biases among investors, or structural market features.
Factor investing takes these observations and turns them into rules. Rather than relying on a portfolio manager's judgement about which stocks to buy, a factor strategy defines selection criteria upfront and applies them systematically. The manager's job shifts from picking stocks to designing and maintaining the rules.
Nigeria's stock market has characteristics that make factor investing particularly interesting. The NGX is inefficient: analyst coverage is thin, information spreads slowly, and many stocks trade at valuations that bear little relationship to their fundamentals. That's fertile ground for systematic approaches.
However, applying factors in Nigeria requires clean data, and that's where most attempts break down. You can't run a value screen without reliable earnings data. You can't measure free-float weighting without verified ownership structures. Most global factor datasets simply don't cover the NGX, and the local data that does exist is riddled with errors. Any serious factor strategy in Nigeria must solve the data problem first.
Venoble's VNG-EDGE (Edge Equity Index) is a factor strategy built specifically for Nigerian equities. It uses two primary factors: value and free-float. The value factor selects stocks that are cheap relative to their fundamentals. The float factor weights positions by the proportion of shares actually available for trading, rather than total shares outstanding.
The strategy has delivered annualised returns of 36.4% since 2013, outperforming both the ASI and every tracked active Nigerian equity fund over the same period. That outperformance isn't magic. It comes from the intersection of a genuinely inefficient market and a data infrastructure, VCORE, that makes systematic screening possible where others are working blind. Past performance doesn't guarantee future results, but the structural advantages are real.
Factor investing requires three things that are scarce in Nigeria: clean historical data, computational infrastructure, and a willingness to follow rules when they feel uncomfortable. Most Nigerian fund managers operate discretionarily, relying on relationships, broker research, and instinct. That approach isn't inherently wrong, but it doesn't scale and it's hard to audit.
There's also a structural issue. The Nigerian fund management industry earns fees based on assets under management, not performance. A systematic strategy that could be automated threatens the business model. Factor investing hasn't taken hold in Nigeria not because it doesn't work, but because the incentives haven't pushed the industry toward it.
Yes, and there's reason to believe it works better in Nigeria than in developed markets. The NGX is less efficient, meaning mispricing persists longer. Fewer analysts cover Nigerian stocks, so systematic screening catches what humans miss. Venoble's VNG-EDGE strategy, which uses value and float factors, has outperformed the ASI and all tracked active funds since 2013. The catch is that you need verified data to implement it properly, and that data is hard to come by.
Stock picking relies on a manager's judgement about specific companies. Factor investing defines measurable criteria, say low price-to-earnings and high free-float, and buys every stock that meets them. The stock picker asks, 'Do I think Dangote Cement will go up?' The factor investor asks, 'Do cheap, liquid Nigerian stocks outperform expensive, illiquid ones as a group?' It's systematic rather than discretionary.
Value and free-float appear to be the strongest factors on the NGX, based on Venoble's backtesting. Value works because many Nigerian stocks trade at deep discounts to fundamentals with minimal analyst scrutiny. Free-float matters because the ASI's full-capitalisation weighting includes shares that never actually trade, distorting stock weights. Adjusting for float gives a more accurate picture of investable opportunity. Momentum and quality factors also show promise but need more research.