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Trading in Stocks 101: The Basics

The Nairobi Securities Exchange can be heaven. Financial heaven that shares a picket fence with hell; today you're racking gains, tomorrow your fingers are burning. I wouldn't call it gambling, though. Unlike the casino, here the player can also be the house, and the house never loses.

This article is the first in a series Trading in Stocks 101 for Kenyans starting out on the NSE. Same material works as a refresher if you've been trading shares a while and slipped into bad habits. Three tips in this one. The next articles build on them.

Mind your money, even when the going is smooth

A lot of people find stocks complicated and either stay away entirely or hand their money to a stranger and hope. Handing it to a professional has real upsides but Madoff is what "hope" looks like when it goes wrong, and he's not the only fox out there looking to get your money. Even with an honest broker, your input matters as much as a patient's symptoms matter to a doctor. Without your input, the diagnosis is guessing.

There's also the small matter of incentives. Your broker has quarterly targets. Your interests and theirs overlap most of the time, but not all of the time. Stay close enough to your own money to know when the advice you're getting serves you, and when it serves the person giving it.

Understanding stocks means understanding the world you live in

A stock is a unit of ownership in a company. Own the stock and you share the profits (dividends, price gains) and the losses (no dividends, value drops). You also usually get a vote on how the company is run, though some shares come without voting rights, a detail we'll cover later.

Companies live in the real world, so real-world events move them. When Russia invaded Ukraine in 2022, fertiliser companies surged because Russia and Belarus together export most of the world's potash. When the shilling weakened hard through 2023 and into 2024, Kenyan exporters earned more shillings for every dollar of sales. This saw the agriculatural stocks, especially the agricultural produce expoeters, give good returns to shareholders. When Safaricom's M-Pesa revenue grows, the share doesn't move on the day, it moves over months as analysts update their models.

You don't need to predict these events. You need to understand, before you buy, what would have to go right (or wrong) for the company you're buying. The investor who knows what they own (value) sleeps better than the one who only remembers what they bought (price).

Success needs a yardstick

If you can't measure it, you can't tell whether you're winning. Set goals before you trade. They have to be specific, measurable, realistic, time-bound. "Make money on the NSE" is not a goal. "Grow my KSh 50,000 to KSh 65,000 in three years with no more than a 15% drawdown" is a goal.

Once the goal exists, build the discipline around it: budget so the money is actually available to invest, review monthly, and decide in advance what makes you sell. Cutting losses early is a skill, not a personality flaw. You have to know when you are wrong early enough and save your capital.  Most retail investors lose money not because they pick the wrong stocks but because they hold the wrong stocks too long, hoping.

Stock trading is active work. No get-rich-quick tricks, no shortcuts, occasional tears. The next article in this series Trading in Stocks 101: How To Pick Bargain Stocks gets into the actual picking.

Till then, happy trading.

Editorial note: This article was first published in April 2011 and substantively rewritten in 2026 to update examples (the original used the 2011 Ivory Coast cocoa crisis and the Japan tsunami as illustrations; the 2026 version uses more recent NSE-relevant events), tighten the prose, and align with the Sonko Life editorial standard. The core arguments and the writer's voice are preserved.

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