Central Bank of Nigeria has stepped up its scrutiny of lenders and foreign-exchange bureaus, marking the latest effort to ease a dollar shortage that has sapped the naira.

CBN ordered Wema Bank Plc to stop foreign currency-secured naira loans – a practice it said drains dollar liquidity – according to instructions seen by Bloomberg. It gave the lender until Sept. 7 to comply.

A spokeswoman for Wema Bank didn’t immediately respond to calls seeking comment.

It has been trying to find ways to stem volatility in the naira, which has lost 40% in value since President Bola Tinubu announced currency reforms shortly after taking office on May 29.

Last week it capped the rate at which forex bureaus can transact in the currency at plus-or-minus 2.5% of the official market-weighted average from the previous day. It warned those who fail to obey its instructions will lose their licenses.

“What the central bank is trying to do is close as many opportunities for speculation and hoarding as possible, so people will bring out their dollars to the market,” said Ayodeji Dawodu, head of Africa sovereign and corporate credit research at BancTrust & Co. in London. “However, what they need to tackle is the reason why people are hoarding and speculating, and that’s because of lack of confidence in the central bank’s ability to support the naira with reserves,” he said.

The naira has suffered persistent volatility since Africa’s most populous nation eased foreign-exchange controls as it sought to simplify its exchange-rate regime and kick-start dollar flows.

In addition, the central bank’s financial statements released this month showed that effective foreign-exchange reserves at its disposal were much lower than previously disclosed.

The local unit traded at 770.72 per dollar at the official market on Tuesday, according to Lagos-based FMDQ OTC Securities Exchange, which oversees the trading. At that level, it is 15% weaker compared to the exchange rate of 906 a dollar at the parallel market, which is where most residents access the greenback because of shortage at banks.

“If you don’t have reserves and you’re going to boost confidence, it’s not going to work,” Dawodu said. “We know the central bank doesn’t have enough to satisfy the market.”

Bloomberg