KSh 1.5B Sold, KSh 74B Lost on Paper: The Small-Trade Maths Behind Kenya's Share SlideKSh 1.5B Sold, KSh 74B Lost on Paper: The Small-Trade Maths Behind Kenya's Share Slide

That gap, roughly 50 shillings of lost market value for every shilling of net foreign selling, is the key to reading this month's slide. It does not mean KSh 74B ($573M) left the country. It means a small number of trades set a new price, and that price was applied to every share in the market, including the ones sitting quietly in your CDS account.

So here is how the sum works, who is actually on the other side of a foreign sale, and what it means for a Kenyan saver who has not touched a single share all month.

A KSh 3.18B week priced a KSh 4T market

Start with what market value, or market capitalisation, actually is: the latest share price of every listed company multiplied by all the shares it has issued, added together. Nobody pays that sum. It is a valuation, refreshed every time a share changes hands.

Now look at how little changed hands. Weekly figures from the Nairobi Securities Exchange show equity turnover of KSh 3.18B ($24.50M) in the week, against a market worth KSh 4.04T ($31.13B) at the close. On Mwenendo's arithmetic, that is about eight shillings traded for every KSh 10,000 of market value.

Those eight shillings did all the work. When Equity Group traded KSh 773.97M ($5.96M) of shares and closed 3.84% lower at KSh 100 ($0.77), the new price did not apply only to the shares that traded. It applied to every Equity share in issue, held by pension funds, insurers, Saccos and individual savers who bought years ago and have not sold.

That is why the market's three-week value loss has reached KSh 134.41B ($1.04B) while foreign selling over the same stretch has been measured in single-digit billions.

Every share sold had a Kenyan buyer

"Net selling" sounds like money vanishing. It is not. Every share a foreign fund sold was bought by someone. In the week to 16 October, foreign investors sold KSh 1.87B ($14.41M) of shares and bought KSh 366.99M ($2.83M). The KSh 1.50B difference was bought by local investors: pension funds, insurers, unit trusts and individuals.

The price falls because of how keen each side is. A foreign fund that has decided to leave will accept a lower price to get out this week. A Kenyan pension fund with no deadline can wait for a better one. When sellers are in a hurry and buyers are not, the price moves down until enough buyers are tempted.

The weaker the pool of local buyers, the further the price has to fall. That makes the next question the important one.

Local cash is going to Treasury bills instead

Kenyan money has not disappeared. It has found a rival home. At last week's Treasury bill auction, Central Bank of Kenya results show bids of KSh 68.50B ($527.86M) for KSh 28B ($215.77M) on offer. The 91-day bill alone drew KSh 49.80B ($383.76M) against KSh 8B ($61.65M) on offer, at an average rate of 8.75%.

Set that beside the stock market. Bids for one week's Treasury bills were about 21 times the value of every share traded on the exchange that week. A pension fund manager can earn 8.75% for lending to the government for three months with no price swings, so a falling bank share has to get quite a lot cheaper before it looks more attractive.

That is the honest answer to who catches the shares foreigners drop: local institutions do, but only at a discount, because safe government paper pays well enough to make them patient. It fits with heavy bond trading volumes this year, although trading figures alone do not prove a wholesale switch from shares to bonds.

The dollar sum a foreign fund is running

Foreign funds do not measure their returns in shillings. They measure them in dollars, which adds a second risk most Kenyan investors never feel.

Take an illustrative fund holding Equity Group shares worth KSh 129.81M, or $1M at last week's rate of KSh 129.81 to the dollar. A 3.84% fall in the share price cuts the holding to about KSh 124.83M ($961,600). With the shilling unchanged, that is a loss of about KSh 4.98M ($38,400).

If the shilling had also weakened 5% over the same period, the fund's loss in dollars would be about 8.42% rather than 3.84%, more than double. The shilling has in fact been steady, firming slightly to KSh 129.81 from KSh 129.94 in the latest week, so currency is not the main driver this time. But it is always in the fund manager's calculation.

The other side of the calculation is the rest of the world. When safe US government debt pays more, a frontier market such as Nairobi has to offer a bigger reward for its extra risk. One capital markets analyst quoted by Mwenendo, Dedan Maina of Ketu Capital, has linked the latest NSE slide partly to higher US Treasury yields.

Mwenendo's reading is that when the global safe rate rises, money can leave Nairobi even when nothing has gone wrong at the companies themselves.

A paper loss for the saver who sits still

Now bring it home. A saver with KSh 100,000 ($770.59) spread across the market like the All Share Index lost about KSh 1,810 ($13.95) in paper value in the week to 16 October, when the index fell 1.81% to 240.50. They sold nothing, so they lost nothing in cash. They would only lock in the fall by selling at the new, lower price.

Context matters too. Even after three weeks of decline, the market remained KSh 1.09T ($8.40B) above its value at the start of the year, according to the exchange's weekly figures. Foreign selling has been steady rather than sudden: net outflows since January stood at KSh 17.79B ($137.09M), already above the full-year totals for 2025 and 2024.

The figures suggest Kenyans now cast more of the deciding votes on their own share prices. Foreign participation in trading fell to 23.70% in one recent week from 40.10% the week before, as Mwenendo reported. When foreigners are a smaller share of trading, their exit moves prices less, but only if local buyers are ready to step in.

Three numbers that tell you where prices go

Three figures, all published weekly, will tell you whether this slide is ending.

The first is the net foreign figure in the exchange's weekly report. A shrinking outflow means the pressure to sell at any price is easing.

The second is the 91-day Treasury bill rate in the Central Bank's weekly bulletin. If it drifts down, safe government paper pays less, local institutions have less reason to wait, and shares start to look better value beside it.

The third is turnover. A rebound on very thin trading can reverse just as fast as it came. A rebound on rising turnover shows real buyers have arrived.

Trading in NCBA shares pauses from 21 October to 2 November while Nedbank completes its takeover, taking another large bank out of daily trading. With fewer counters trading, the few trades that remain will carry even more weight in setting what every Kenyan shareholder's portfolio is worth.