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Meeting the Regulatory and Business Expectations of Stress Testing and Back Testing
This presentation explores stress testing and back testing for UCITS funds, including proposed regulatory guidelines, back testing issues (such as periodicity, look-back bias, selection effects and market-implied risk measurement). It also explores the different interpretations that can be placed on the term 'stress testing'.
Slides
1
Meeting the Regulatory and Business Expectations of Stress Testing and Back Testing
2
Agenda
3
Agenda
4
CESR proposed guidelines - Overview
5
Comment: in line with regulatory thinking elsewhere
6
Calculation standards
7
Back testing (1)
8
Back testing (2)
9
Comment: are risk models this reliable?
10
Stress testing (1)
11
Stress testing (2)
12
Stress testing (3)
13
Comments
14
Additional safeguards
15
Comment
16
Agenda
17
Visualising likelihoods
18
Back testing
19
Is 99%ile the right quantile to focus on?
20
Does the model fit well 'period by period'?
21
Return behaviour depends on periodicity
22
Lock-back bias, in-sample and out-of-sample testing
23
Selection effects, see Kemp (2010, 2010a, 2010b)
24
Selection effects - potential magnitude
25
Market-implied risk measurement
26
Stress testing
27
Stress testing
28
Different meanings given to the term 'stress testing'
29
Reverse stress testing
30
Stress testing - other observations
31
Summary
32
References
33
Important Information
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