The Central Bank of Nigeria (CBN) has confirmed the full operational deployment of its Scripless Securities Settlement System (S4) as the exclusive platform for primary market auctions of government securities.
The confirmation follows the February 2026 Treasury Bills auction, where the Federal Government offered N1.15 trillion across 91-day, 182-day, and 364-day bills, conducted entirely through S4. The system now centralises bid submission, price discovery, allocation, and settlement, eliminating physical submissions and decentralised aggregation channels.
According to the apex bank, only authorised banks can transmit bids on behalf of investors, while the apex bank retains oversight of auction execution, adding that S4 is now fully functional for government securities auctions. Investors must bid through their banks.
Analysts describe the move as one of the most significant structural reforms in Nigeria’s fixed-income market in over a decade. By centralising auctions, the CBN reduces informational asymmetry, digitises price discovery, and shifts Primary Dealer Market Makers (PDMMs) from gatekeepers to facilitators of order execution.
“The full deployment of S4 redraws the governance map of Nigeria’s primary debt market,” said Tajudeen Olayinka, CEO of Wyoming Capital and Partners. “Auction mechanics are now digital, transparent, and policy-sensitive.”
Experts note the reform strengthens fiscal financing, improves monetary policy transmission, and aligns with broader capital market infrastructure upgrades. Introduced in 2014, S4 was only fully enforced last year after temporary technical interruptions. Its entrenchment signals the CBN’s commitment to a centralised, transparent, and dealer-neutral platform for Nigeria’s sovereign debt market.
