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Modified duration meaning

What does Modified duration mean?
In legal practice, modified duration describes how sensitive the price of a bond or other fixed-income security is to a change in yield. It estimates the percentage change in price for a 1% (100 basis points) parallel move in yield and is commonly used when drafting and interpreting prospectuses, investment mandates, risk disclosures and hedging documentation. It is a market term rather than one defined by legislation or case law, and usage is broadly consistent across England & Wales, Scotland, Northern Ireland and Ireland. A higher modified duration indicates greater exposure to interest rate risk. The measure is derived from Macaulay duration and the security’s yield convention, and assumes small yield changes and fixed cash flows. It is less reliable for instruments with options or prepayment features, where parties may use effective duration or key rate duration. Typical legal applications include: portfolio or mandate limits (for example, “modified duration not to exceed X”); disclosure of interest rate risk in debt securities offering documents; pension scheme LDI strategies (used by trustees and managers for duration matching); and UCITS/AIF risk reporting. Contracts and governing documents should specify calculation conventions, including compounding and day-count.
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View the related Practice Notes about Modified duration

PRACTICE NOTES
Dividend Waivers under UK Company Law: Procedure, Timing, Deed Requirements and HMRC Settlements, CGT and IHT Risks

Dividend A company possesses an implied authority to distribute its profits to its members, unless its articles of association stipulate otherwise. A dividend represents one form of distribution made by a company to its members; indeed, dividends are, in practice, the form of distribution most commonly made by companies. To make a lawful distribution, the company must comply with Part 23 of the Companies Act 2006 (CA 2006) and with the common law rules on distributions, as those rules are modified by the statutory provisions just mentioned. For discussion of the law and practice applicable to company distributions, see Practice Note: Distributions. For an outline of the consequences of failing to comply with the law on distributions, see Practice Note: Unlawful distributions. In ordinary parlance, ‘dividend’ means a share of profits, whether at a fixed rate or otherwise, allocated to the holders of a company’s shares. The expression is used for payments made to shareholders in their capacity as shareholders, and not, eg, by way of remuneration for...

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PRACTICE NOTES
Temporary relaxation of EHC plan duties and procedural timescales in England during COVID‑19 (CA 2020 notice; CFA 2014 s42 modified; SI 2020/471)

ARCHIVED: This Practice Note is archived and is not being maintained at the present time. It outlines the temporary easing of duties on local authorities (LAs) concerning assessments of Education, Health and Care needs, and the delivery of provision within their local authority area. It sets out what has altered in respect of statutory obligations and the relaxation of timescales by which an LA must act, to accommodate extreme pressures on resources and a possible shortage of key staff for the duration of pandemic management. These easements are permitted only where the justification relates to the incidence or transmission of coronavirus (COVID-19). Coronavirus (COVID-19) response In March 2020, the Coronavirus Act 2020 (CA 2020) was published and, within it, the Secretary of State was empowered to give a notice that disapplies or modifies certain legal duties due to coronavirus transmission. On 30 April 2020, in exercise of the power in CA 2020, s 38, Sch 17 Pt 1, para 5(1), the Secretary of State...

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