NGX & US Stock Portfolio Tracker: Track Naira and Dollar Holdings in One Place

A Nigerian investor building wealth through shares today rarely holds everything in one place. A typical portfolio might have Dangote Cement and GTCO bought through a traditional stockbroker years ago, a handful of US tech names picked up on Bamboo, an S&P 500 ETF sitting in Trove, and a Risevest dollar fund running quietly in the background. Each platform shows its own numbers, in its own currency, with no single view of what the whole thing is actually worth in naira today. That fragmentation is the exact problem this tracker is built to solve: log every holding once, in its native currency, and see the combined picture without opening four apps and doing the currency math by hand. The regulatory backbone behind all of this is the Investments and Securities Act 2025, signed into law in March 2025 and now the principal legislation governing Nigeria's capital market. It repealed the 2007 Act and confirmed the Securities and Exchange Commission as the apex regulator, with expanded powers over exchanges, market operators, and increasingly digital-first platforms. Every licensed stockbroker and every SEC-registered app offering NGX access, whether a traditional broker or a fintech like Bamboo, Trove, Chaka or Risevest, sits underneath this framework, and shares themselves are typically held in dematerialised form through the Central Securities Clearing System rather than as physical certificates, which is what makes instant digital trading and settlement possible in the first place. Currency is where most portfolio math actually goes wrong. NGX holdings are priced and traded in naira; US holdings bought through a Nigerian fintech's dollar-denominated account are priced in dollars. A portfolio that looks flat in dollar terms can still be growing or shrinking meaningfully in naira terms once the exchange rate moves, and the reverse is just as true. Converting everything to a single reporting currency, using a consistent rate, is the only way to see whether the portfolio is actually ahead or behind, rather than being misled by whichever currency happens to be quoted on a particular app's dashboard that day. Tax treatment also differs sharply by market, and it changed materially in 2026. Dividends from NGX-listed companies are subject to a 10% withholding tax, deducted at source by the company's registrar before the payment reaches an investor's account; for most individuals this is a final tax, meaning there is nothing further to calculate or file on that income. US stock dividends work differently: US law requires a flat 30% withholding on dividends paid to non-US persons, and since Nigeria does not currently have a double-taxation treaty with the United States that reduces this rate, Nigerian investors on platforms like Bamboo or Trove generally see the full 30% withheld once their W-8BEN form is on file, rather than the lower treaty rates available to residents of countries with a US tax treaty. Capital gains tax on shares changed substantially under the Nigeria Tax Act 2025, effective 1 January 2026. The old flat 10% rate on share disposals is gone. Gains are now folded into an individual's personal income tax computation and taxed at the same progressive bands that apply to income generally, running from 0% up to 25%, rather than a single flat rate regardless of income level. Small investors are also better protected than before: a disposal is exempt from capital gains tax entirely where total share disposal proceeds do not exceed 150 million naira and the attributable gain does not exceed 10 million naira within any rolling 12-month period — combine several sales that cross either threshold in that window, and the exemption falls away for all of them, not just the portion above the line. For anyone holding shares bought before the reform, the law also resets the cost base: for CGT purposes, the acquisition cost used going forward is the higher of the original purchase price or the closing market price as at 31 December 2025, which prevents gains that built up under the old regime from being taxed retroactively at the new rules. There is a further exemption for gains reinvested into shares of Nigerian companies within twelve months of disposal, which matters for anyone rotating a portfolio rather than cashing out of the market entirely. None of this replaces professional tax advice, and this tracker does not file anything on an investor's behalf. What it does is keep the underlying numbers, cost basis, current value, currency, and platform, organised in one place, so that when a tax question does come up, or a decision about rebalancing needs to be made, the investor is working from an accurate total rather than a guess stitched together from memory and four different apps.