Educational material from 
What you will learn
- Explain ownership share and holding value in your own words.
- Check each other’s calculations without competing to guess winning shares.
- Finish with a documented question and a next learning step.
First ten minutes: give everyone a task
Choose an explainer, a calculation checker and a questioner. Larger groups can share roles, rotating them after each activity. The explainer must show the starting base, the checker calculates independently, and the questioner identifies something the evidence does not tell you. Nobody needs to act as the group’s stock-market expert.
Write today’s question: How do quantity, ownership share and value differ? Agree that no real purchases or stakes are involved. All companies and prices are invented. Anyone wanting to discuss a real stock tip should first turn it into a research question, keeping the session from becoming a contest about which price will rise.
Next fifteen minutes: explain without mixing measures
The fictional company has 2,000 identical shares. One participant follows 20 of them, and the price is SEK 30. Ownership is 20 / 2,000 = 1 percent; the holding’s value is 20 × 30 = SEK 600. Ask the explainer to describe the denominator and the checker to show the answer using another arrangement.
The questioner chooses something still unknown, such as company costs or a future price. Ownership can be calculated exactly under our conditions, but the same division does not reveal the missing information. Record both kinds of answer in the group’s notes so that a correct calculation does not hide an open question.
If the table does not fit, scroll it sideways.
| Measure | Start | Later |
|---|---|---|
| Participant’s quantity | 20 | 20 |
| Company’s total quantity | 2,000 | 2,000 |
| Ownership share | 1 % | 1 % |
| Price | SEK 30 | SEK 24 |
| Holding value | SEK 600 | SEK 480 |
Next fifteen minutes: change roles and check a decline
The price changes to SEK 24 while both share quantities remain unchanged. The holding is worth SEK 480, a decrease of SEK 120 or 20 percent of SEK 600. Ownership remains 1 percent. The new explainer describes why a lower value does not mean four of the twenty shares disappeared.
The new checker tests the claim that a 20 percent gain restores the starting price. 24 × 1.20 = SEK 28.80, below 30. In this model the required increase is 6 / 24 = 25 percent. Show the difference between the two starting bases before taking another question.
Final twenty minutes: report back and choose a follow-up
Spend ten minutes on the individual exercise below and ten reviewing it. Ask every participant to name one thing that could be calculated and one that needed more information. The notes should contain at least one corrected calculation or verified answer, plus an open question the group wants to explore next time.
Choose the next session from that question: the portfolio guide for cash and holdings, the company-search guide for identity, or the recovery lesson for changing percentage bases. This is an independent study-group plan. It does not describe course certificates, a group administrator or teacher tools that you should assume are available in Investiq.
Try it yourself
Switch to ten of the company’s 2,000 shares. Price falls from SEK 40 to SEK 32. Calculate ownership, starting value and later value. What percentage increase from SEK 32 is needed to reach SEK 40 again?
Show the solution and explanation
Ownership is 0.5 percent. Value falls from SEK 400 to SEK 320. From SEK 32, a 25 percent increase is needed.
10 / 2,000 × 100 = 0.5. Values are 10 × 40 and 10 × 32. Recovery is (40 − 32) / 32 × 100 = 25 percent. The company’s total share quantity stays unchanged throughout the task.
Check your understanding
Must the questioner be able to answer everything?
No. The role also helps the group notice where the evidence is insufficient.
What should remain after the session besides a final value?
An explanation using the correct base, a checked answer and a question for the next learning step.
Practise with virtual money
Try what you just learned in a practice portfolio with virtual money. You don't deposit any real money.
How the practice portfolio worksKeep learning and practising
More activities on this topic
Start and learn together
Sources and examples
- Investor.gov: stocks, ownership and risk
- Finansinspektionen: investigate company facts and risks (Swedish)
The sources support the factual explanations. Calculations and exercises were created for this lesson. Amounts and price changes are invented unless stated otherwise.
This material is educational and does not recommend securities to buy. A simulated result does not guarantee a future result.
