# Reference: FCA Client Categorisation Rules.

Flat yield measures a bond's return using the annual coupon expressed as a percentage of the bond's current market price. This is a quick, simple measure of the income return, but it is not a complete measure of the investor's total return if the bond is held to redemption. The key weakness is that it ignores the fact that most bonds redeem at par, so if a bond is bought at a discount, the investor will also earn a capital gain as the price moves towards par at maturity. Conversely, if the bond is bought at a premium, the investor will suffer a capital loss as it pulls back towards par by redemption. Flat yield also does not capture the time value of money across all cash flows in the way that a redemption yield measure does. For exam purposes, the most direct reason it is inaccurate is that it omits the capital gain or loss component that arises between purchase price and redemption value, which can materially change the true return.

Beta measures the sensitivity of a stock's returns to movements in the market as a whole, based on historical co-movement with a chosen market index. A beta of 1 indicates the stock has tended to move in line with the market. A beta greater than 1 indicates higher sensitivity and therefore higher systematic risk, meaning the stock has tended to rise more than the market in up markets and fall more in down markets. A beta below 1 indicates lower sensitivity to market movements. With a beta of 0.85, the stock has historically moved about
85% as much as the market, so it is less volatile than the market in systematic risk terms. This does not mean it will outperform or underperform the benchmark, and it does not describe relative performance in percentage terms. Beta is not a performance measure, it is a risk measure. CISI exam traps often include statements that confuse beta with return or with tracking error. The correct interpretation is lower market-related volatility than the market overall.

Inflation is typically measured using a consumer price index that tracks the change in the overall cost of a representative basket of goods and services purchased by households. The basket contains many items covering categories such as food, clothing, transport, housing-related costs, recreation, and services. Each item is weighted to reflect its importance in average household spending, so the index measures the cost of living in a broad, systematic way. Central banks use this measure, or a closely related headline or core version, as the primary inflation gauge when setting monetary policy. A survey of banks may inform market expectations, but it is not how inflation is calculated. Changes in interest rates can influence inflation, but they are not the measurement basis. Commodity prices are relevant because they can feed into consumer prices, yet inflation is not calculated from commodities alone; it is derived from the overall consumer basket. The exam point is that inflation is an index-based measure built from a basket approach with weightings, reviewed periodically to reflect changing consumption patterns.

# Reference: FCA Handbook (Corporate Actions), CISI Wealth & Investment Management.