Investing / Quiz
Investing quiz
15 questions. Every option is explained, so a wrong answer still teaches you something. Wrong answers go to your review list.
Answer the questions below. Your score updates as you go.
Question 1/15 · Investing basics
What is the main difference between investing and trading?
✓ Right: an investor's return comes mainly from the value an asset produces over time, a trader's from price moves.
✗ Investments can fall a lot and a single company can go to zero, so investing can lose money too.
✗ It is often the other way round: many retail traders use contracts such as CFDs and own nothing.
✗ They differ in time horizon, in what you own and in what it costs you to be wrong.
Question 2/15 · Investing basics
You bet €10 on red at roulette, with 18 red, 18 black and 1 green number. What is your average loss per bet?
✗ The green zero means you lose 19 times in 37 and win only 18 times in 37.
✓ Right: on average you lose €10 ÷ 37, about €0.27, on every bet, and no strategy changes that.
✗ That is 27% of the bet; the real house edge is about 2.7%, so €0.27 on €10.
✗ Each spin is independent, so past losses do not change the odds of the next one.
Question 3/15 · Investing basics
€1,000 grows at an assumed 5% a year and all gains stay invested. About how much is it worth after 10 years?
✗ That is the value after one year, not after ten.
✗ That is simple growth, where you take the €50 out every year instead of leaving it invested.
✓ Right: 1.05 to the power of 10 is about 1.629, because each year's growth also grows.
✗ Doubling at 5% takes about 14 years (72 ÷ 5), not 10.
Question 4/15 · Investing basics
Using the rule of 72, roughly how long does money take to double at an assumed 8% a year?
✗ That mixes up the rate and the years; the rule divides 72 by the rate.
✗ That is how long simple growth takes (100 ÷ 8), but compounding is faster.
✗ About 16 years would mean roughly 4.5% a year, not 8%.
✓ Right: 72 ÷ 8 = 9, so money roughly doubles in about 9 years at 8%.
Question 5/15 · Investing basics
Why does starting to invest earlier usually matter more than finding a perfect moment to buy?
✗ Prices do not always rise; markets can fall for years.
✓ Right: in the lesson example, a perfect 10% discount after five years of waiting still ended behind.
✗ Fees do not depend on when you start; time helps through compounding.
✗ Nobody can reliably see it in advance, which is exactly why waiting for it is costly.
Question 6/15 · Investing basics
You buy units of an index ETF. What do you actually own?
✗ The fund holds the shares; you hold units of the fund.
✗ That describes a CFD, which gives no ownership at all.
✗ A fund is not a savings account; there is no fixed interest and no guarantee.
✓ Right: each unit is a small slice of everything the fund holds.
Question 7/15 · Investing basics
An index holds two companies weighted by size: one worth €800 billion and one worth €200 billion. You invest €500 in a fund that copies it. How much goes into the bigger company?
✗ That would be equal weights, but this index weights each company by its size.
✓ Right: the bigger company is €800 of €1,000 billion, or 80%, and 80% of €500 is €400.
✗ That would be a 90% weight, but the bigger company is 80% of the total.
✗ The fund copies the whole index, so part of the money also goes into the smaller company.
Question 8/15 · Investing basics
You split €2,000 equally across 40 companies. One goes bankrupt and its shares become worthless. How much do you lose?
✗ Only one of the 40 companies failed; the other 39 parts are still there.
✗ Each company got €2,000 ÷ 40 = €50, not €500.
✗ Diversification makes one failure small; it does not make it disappear.
✓ Right: each company got €50, so one total failure costs €50, which is 2.5% of the money.
Question 9/15 · Investing basics
Two investments tend to rise and fall on the same days. What does that say about them?
✓ Right: things that move together give little protection against each other.
✗ Low correlation means they move more separately, which is the opposite of this case.
✗ If they move together, they can lose together.
✗ Correlation describes how two things move, not what type of asset they are.
Question 10/15 · Risk and behaviour
Your investment peaked at €8,000 and is now worth €6,000. What gain do you need to get back to €8,000?
✓ Right: €6,000 must grow by €2,000, and €2,000 is about 33.3% of €6,000.
✗ The fall was 25%, but 25% of €6,000 is only €1,500, which takes you to €7,500.
✗ 20% of €6,000 is €1,200, which only takes you to €7,200.
✗ 50% of €6,000 is €3,000, which would take you to €9,000, more than you need.
Question 11/15 · Risk and behaviour
After its 1929 peak, how long did it take a main index of large US companies to return to that level in price terms?
✗ After two years it was still falling; it hit bottom in 1932.
✗ Five years is closer to the recovery after the 2007 peak, not the 1929 one.
✓ Right: it fell about 89% and did not return to its 1929 level until November 1954.
✗ It did return, but only after about 25 years.
Question 12/15 · Risk and behaviour
€10,000 grows for 25 years at an assumed 5% a year before fees. Roughly how much more does a 0.1% yearly fee leave you than a 2% fee?
✗ That is only the difference in the first year; the fee is charged again every year for 25 years.
✗ That is 1.9% of €10,000 times 25, but fees come from a growing balance and the lost money also stops growing.
✓ Right: about €33,066 with the 0.1% fee against about €20,938 with the 2% fee.
✗ That is the whole growth with no fee at all; the 2% fee does not take all of it.
Question 13/15 · Risk and behaviour
A fund charges 2% a year and you assume a 6% yearly return before fees. What share of that return does the fee take each year?
✗ The fee is 2% of your balance, but compared with a 6% return it is a much bigger share.
✗ About 4 percentage points is what you keep, not what the fee takes.
✓ Right: 2 of the 6 percentage points go to the fee, which is one third of the return.
✗ You would still keep 4 of the 6 percentage points, if the 6% really happened.
Question 14/15 · Risk and behaviour
A fund's price falls from €100 to €50. You sell your 10 units in a panic, and buy back with all your money when the price is €100 again. What is your money worth now?
✗ That is what you would have if you had held, but you sold at half price.
✗ Selling left you €500 in total, and buying back at €100 does not add anything.
✗ You still own 5 units; panic selling halved your money here, it did not wipe it out.
✓ Right: selling 10 units at €50 gave you €500, which buys back only 5 units at €100.
Question 15/15 · Risk and behaviour
You invest €100 when the price is €20 and another €100 when it is €10. What is your average cost per unit?
✗ €15 is the average of the two prices, but you bought more units at the lower price.
✗ Only the second purchase was at €10; the first 5 units cost €20 each.
✓ Right: you bought 5 units plus 10 units, so 15 units for €200, or about €13.33 each.
✗ Only the first purchase was at €20; the second bought twice as many units at €10.