Arithmetic Mean

The sum of a set of numbers added together and then divided by the total amount of numbers in that set.

‘Arithmetic mean’ is a fancy way of saying ‘mean’ or ‘average.’

To find the arithmetic mean, you add together a set of numbers and then divide your answer by the amount of numbers you had in that original set.

This may sound wordy - especially for math-o-phobes - but it’s really simple.

Take 1,2,3,4,5 as a set of numbers.

1+2+3+4+5 =15

In our original set, there were 5 numbers. So to get the average we just do….

15 ÷ 5 = 3

Simples.

More terms

Maturity date

The date on which a gilt is redeemed and the gilt holder receives the repayment of the nominal amount and final dividend or coupon payment.
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Annualised Rate of Return

The average annual return an investor sees over a set period of time.
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Investment Trust

A company that pools money together from multiple investors and then invests it.
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Yield

Income from an investment as a percentage of its current price.
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W-8BEN Form

Non-US individuals and businesses may have to file this form for the Internal Revenue Service (IRS), the US tax authority.
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Retail Prices Index (RPI)

An index published each month by the Office for National Statistics, which measures the level of retail prices in the UK. Cash flows on all index-linked gilts are linked to the RPI.
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Nominal amount

The face value of a gilt. It represents the amount that will be repaid to the holder at maturity and is also used to calculate the dividend or coupon payment.
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Technical Analysis

Examining price movements of shares and other assets, and trying to predict how they will move in the future.
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Xetra

A trading venue operated by the Frankfurt Stock Exchange.
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