Glossary entry

English term or phrase:

worst case curve parallel and twist moves

English answer:

most unfavourable yield curve changes

Added to glossary by Nesrin
Apr 1, 2007 09:32
17 yrs ago
English term

worst case curve parallel and twist moves

English Bus/Financial Finance (general)
From a document about a commodity fund...

Scenario and Stress Testing:

- Used to identify potential ‘tail’ losses that VaR (Value at Risk) does not capture.

- Stress tests – ***worst case curve parallel and twist moves*** and taken for each metal using 10 years of historic data and applied to the current portfolio.

- Stress tests are combined to create scenarios showing ‘worst case losses.’

I can't make heads or tails of the sentence part between ***. Can anyone attempt to shed some light on this? Sorry if it appears to be more than one term, but I wouldn't know how to break it up into separate terms (which words belong with which).

Thanks a lot!

Responses

+2
10 mins
Selected

most unfavourable yield curve changes

A 'parallel shift' describes a change in the yield or forward curve where the yield for all parts of the curve (= all maturities) change by the same amount (up or down, e.g. an upwards move by 50bp). A 'twist' refers to a change in the yield curve slope, where the relationship between different parts of the curve also changes (e.g. 0-5 years up 20 bp, 5-10 years unchanged, 10+ years down 20bp).
'Worst case' refers to those parallel shifts or twists which have the worst potential result for the portfolio.

In the context of metals trading, 'curve' refers to the forward structure of prices.
Note from asker:
Thanks Ralf!
Peer comment(s):

neutral Els Spin : Good grief! I have absolutely no idea what you're talking about. Good, ain't it? I love specialists; you can rely on them!
2 hrs
Explain a complex medical concept to me, and you're bound to get the same result... ;-)
agree rkillings : No better way to put it than the way it's worded in the source text. To explain 'parallel' and 'twist', you can refer to 'translation' and 'rotation' (analytic geometry). To explain 'curve', you can refer to the term structure of forward prices.
21 hrs
agree Alfa Trans (X)
1 day 3 hrs
Something went wrong...
4 KudoZ points awarded for this answer. Comment: "Thanks again Ralf for the very helpful explanation"
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