Banking-sector earnings season: a reader's primer
Tier-1 banks report on staggered timelines. Here's what the recurring line items — NIM, cost-of-risk, CAR — actually tell you.
Nigeria's tier-1 banks — GTCO, Zenith Bank, UBA, Access Holdings, FBN Holdings and Stanbic IBTC among them — report results on staggered timelines throughout the year, and the same handful of line items tend to dominate the commentary each cycle.
The line items that matter
Net interest margin (NIM) captures the spread between what a bank earns on loans/securities and what it pays on deposits and borrowings. In a rising-rate environment, NIM often expands first on the asset side before funding costs catch up.
Cost-of-risk is loan-loss provisioning as a share of the loan book. It's the number that tends to move the most in periods of currency volatility, since FX-denominated exposures can require sudden provisioning adjustments.
Capital adequacy ratio (CAR) is the regulatory buffer banks must hold against risk-weighted assets. Recapitalization cycles — like the one the Central Bank of Nigeria has pushed in recent years — directly target this number.
Reading across banks, not just within one
Because tier-1 banks share the same macro backdrop, the more useful comparison is often relative: which bank is growing fee income fastest, which has the most non-performing-loan discipline, which is diluting shareholders least to meet capital requirements. Pulsights' Compare tool is built for exactly that — pick two to four banks and look at ROE, P/E and P/B side by side.