The rate cut has arrived. What it means for your naira is still an open question.

On September 22, the Central Bank cut its benchmark rate by 350 basis points, from 26.5% to 23%. Seven economists polled by Reuters beforehand. Seven expected a hold. It's the biggest single cut since December 2006. Governor Olayemi Cardoso called it an operational reset. He said the old policy rate had drifted away from the rates already being used in the market.

The next day, the naira barely reacted. The official rate sat around ₦1,327.78 to the dollar, close to ₦1,329.80 the day before. Parallel-market quotes ran around ₦1,385 to ₦1,389.

That's not nothing. It's also not the story a 350-basis-point surprise usually produces. Nigeria has been here before, in the other direction. When the CBN raised rates six times in 2024, taking the benchmark from 18.75% to 27.5%, the naira moved fast and visibly each time, because the market was pricing in a currency fighting for its life. This week's cut is the opposite kind of move, made from a position the bank describes as stable rather than desperate. Markets that expect stability tend to shrug harder than markets that expect crisis.

That doesn't tell us what the rate cut will eventually do. It tells us what it hasn't done yet.

A benchmark rate this size doesn't move foreign portfolio money in a day. It changes the maths those investors run over weeks, as they compare what Nigerian government securities now pay against what they can get holding dollars instead. If that maths starts favouring dollars, the pressure usually shows up in the parallel market first, before it reaches the official window banks quote every morning. Nothing in this week's numbers says that's happening yet.

So don't read yesterday's exchange rate as the verdict. The more useful question is whether the reset changes the rates banks, investors and borrowers actually face over the weeks ahead. For anyone sending money home from the UK, that's the number to actually watch, not this week's headline, but whether the gap between the official rate and what a transfer app quotes you starts moving in October.

Cardoso has framed this as tidying, not loosening. A 350-basis-point cut is a strange size for tidying. If the naira holds steady through the first week of October, that framing looks right, and the gap between policy rate and market rate really was the only thing out of place. If the parallel market starts drifting wider instead, the tidying story gets harder to defend, and this cut starts looking like the first move of something bigger. Either reading is available right now. Neither is confirmed. That's the part still unfolding, not the part already decided.