Browse every published lesson by the question it answers, across all five streams.
Questions
Bid-offer spread explained: why a new investment can start at a loss
The bid-offer spread is the gap between the price available to a seller and the price charged to a buyer. Here is how to turn it into pounds. Plain answer
Cash ISA vs Stocks and Shares ISA: what is the difference?
Compare Cash ISAs and Stocks and Shares ISAs by what they hold, how you access your money and which risks and protections apply. Plain answer
Crypto exchange or wallet: which risks are you choosing?
Exchange custody and self-custody move responsibility to different places. Compare the failures each choice must prevent and survive. Plain answer
Does swapping one cryptoasset for another trigger UK tax?
HMRC generally treats a crypto-to-crypto swap as a disposal even when no pounds are received. Own-wallet transfers are usually different. Plain answer
Free float explained: how many shares can really trade?
Free float estimates shares available to public investors, but it is not the same as issued shares, market capitalisation or live market liquidity. Plain answer
How can a trader limit the damage from being wrong?
Losing trades cannot be eliminated, only contained. The useful work happens before entry: define failure, size the position and understand the exit. Plain answer
How does leverage magnify trading gains and losses?
See how the same market move produces different gains and losses when exposure exceeds your starting capital, and why margin is not a loss limit. Plain answer
How is a stock-market index calculated?
Follow a fictional three-company index to see how market values, free float, weights and the divisor turn share prices into an index level. Plain answer
How much cash should you keep before investing?
There is no universal cash buffer before investing. Use essential spending, income stability, known costs and access needs to build a practical runway. Plain answer
Saving vs investing vs trading: what is the difference?
The three activities can use similar-looking accounts and sometimes the same assets, but they solve different problems. The useful question is not simply which one offers the highest possible return. It is what the money is for, when it may be needed, how much loss can be tolerated and how actively it will be managed.… Plain answer
Share dilution explained: what happens when a company issues more shares?
Issuing new shares can reduce an existing holder’s percentage ownership. A placing example shows the maths and the questions the percentage cannot answer. Plain answer
Stop-loss vs stop-limit: what can each fail to do?
A stop can fill below its trigger; a stop-limit can protect a price boundary but remain unfilled. Compare both on the same fictional market fall. Plain answer