A Zimbabwean investor looking to buy shares in Dangote Refinery’s $1.6 billion initial public offering (IPO) cannot simply open an app and tap “invest”. The offer is structured primarily for investors in Nigeria, leaving Zimbabweans without the same direct route available to domestic investors.
Bard Santner Investors (BSI), the Zimbabwean asset manager facilitating local participation, has created a permitted cross-border route for Zimbabweans to access the offer. It must secure regulatory approvals, process funds and route applications through Ecobank’s cross-border banking and nominee arrangements.
The problem in Nigeria was app capacity; for Zimbabwean investors, it is the cross-border process. When the IPO opened on September 14, Bamboo and Cowrywise struggled with a surge in traffic, exposing capacity constraints and dependencies on third-party services. Zimbabwean investors face a different set of hurdles: manual approvals, cross-border bank transfers and nominee arrangements required to invest from outside Nigeria.
Together, the experiences expose a challenge for Africa’s expanding retail-investment market: digital platforms are widening access to capital markets, but the systems behind them are not always prepared for demand or cross-border complexity. The outages exposed how quickly investor demand can overwhelm digital investment services.
“So far, because of the time, we couldn’t do online applications. We are doing it more manually,” Ngoni Chikowore, head of asset management at Bard Santner, told TechCabal in an interview on Wednesday.
Chikowore said the transaction is treated as an offshore investment in both Nigeria and Zimbabwe, requiring exchange-control approval and supporting documentation. BSI then transfers client funds through Ecobank Zimbabwe to Ecobank Nigeria, where Ecobank Nominees submits the IPO application on the firm’s behalf.
The arrangement gives Zimbabweans a route into the offer, but shows how cross-border investing still depends on intermediaries, regulatory processes and bank transfers. BSI’s minimum investment is $20,000, reflecting the requirements of its route for eligible African investors, rather than the much smaller minimum available to domestic Nigerian applicants.
The Nigerian disruption mattered beyond the country’s borders. Chikowore said it did not ultimately derail BSI’s process because funds moved through the banking system, and the firm retained evidence of participation. But he identified a potential risk before the share allotment, when applications and funds were still moving through the process.
“The only risk is if maybe before allotment,” he said. “When we transfer the funds, we are transferring them through the banking sector through Ecobank Zimbabwe to Ecobank Nigeria, so we have evidence or a claim to say we have participated.”
Bamboo said it added more than 236,000 accounts in the week before the IPO, of which 152,000 were funded and trading. Cowrywise’s service was slow for about an hour before being restored.
Richmond Bassey, Bamboo’s chief executive, told Nairametrics on September 24 that traffic rose to more than 10 times normal levels in the first 30 minutes. The company had expected four to five times normal traffic and had prepared capacity for up to 10 times that.
Bassey said critical processes relied on third-party providers, including one-time passwords, account creation, password resets, deposits and know-your-customer checks. Delays and repeated attempts added pressure, while Cloudflare throttled traffic. His account pointed to capacity and dependency problems, rather than a reported cyberattack or security breach.
An app outage does not prove that an entire financial system has failed. But it shows how an investment experience depends on a chain of services, any of which may become a bottleneck during a sudden surge. Adding users is not the same as ensuring that the entire transaction journey can accommodate them.
Dangote’s offer is a high-profile test because it is being marketed to investors across Africa. The IPO comprises 4.1 billion shares priced at ₦525 (about $0.40) each, with the offer scheduled to close on October 13 and listing expected in November.
But the wider African market remains relatively shallow. The Organisation for Economic Co-operation and Development’s (OECD) Africa Capital Markets Report 2025 counted 1,141 listed companies across African exchanges, compared with roughly 44,000 globally. African companies accounted for about 1% of global equity capital raised since 2000, while South Africa, Morocco and Egypt represented 80% of the continent’s market capitalisation.
That makes the push to bring more retail investors into African capital markets particularly significant and piles greater pressure on the digital and financial infrastructure connecting them.
Nigerian retail investors can apply through digital platforms, while Zimbabweans using BSI must navigate approvals and a manual process the firm hopes to automate as part of its long-term plans. Digital access is expanding, but the practical ability to invest still depends on geography, regulation and the infrastructure connecting markets.
Regional initiatives such as the African Exchanges Linkage Project and the Pan-African Payment and Settlement System aim to improve market connectivity and payment systems. But they do not remove the need for individual platforms to test capacity, manage third-party dependencies and communicate clearly during disruptions.
The Dangote IPO shows both the promise and limits of digital investment. Platforms can bring more people to capital markets, while intermediaries can create routes for investors who cannot access an offer directly. But the next stage of growth requires more than onboarding campaigns and app interfaces.
For retail investing to scale across borders, systems must be resilient enough to handle demand, and processes connecting investors, banks, brokers and exchanges must be dependable. Otherwise, broader participation will remain easier to advertise than to deliver.
True scale demands moving beyond surface-level integrations to robust execution. We’ve filtered the noise out of Moonshot 2026, optimising the conference strictly for high-calibre connections between startup founders, global financial operators, enterprise leaders and individuals rewiring Africa’s technical frameworks. Get 20% off Early Bird tickets for a limited time.
