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2. Agenda. Do we need transaction based attributionMethodologyMoney Weighted Return vs Time Weighted ReturnAverage Invested CapitalImpact on data requirements. 3. Questions. Why do we need transaction based attribution?To enhance the accuracy of the resultsDISCUSSIONIs it better than daily po
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1. 1 Position or transaction based attribution Philippe Grgoire
Orfival
2. 2 Agenda Do we need transaction based attribution
Methodology
Money Weighted Return vs Time Weighted Return
Average Invested Capital
Impact on data requirements
3. 3 Questions Why do we need transaction based attribution?
To enhance the accuracy of the results
DISCUSSION
Is it better than daily position based attribution?
Yes, as long as the portfolio is not rebelanced on a daily basis (which is usually the case for portfolios that do not track the index)
DISCUSSION
4. 4 MWR vs TWR
5. 5 MWR vs TWR
6. 6 Weights To measure the impact of an allocation decision, we compare the weights of the benchmark and the portfolio
If the portfolio is rebalanced periodically, we take the benchmarks weights at the start of the period
MWR are computed over the period and then linked through a TWR
What weights should we used for transaction based attribution
DISCUSSION
7. 7 Average Invested Capital
8. 8 Conclusions Key points in transaction based attribution
MWR
AIC
How to determine the period?
Rebalancing period
A consequence is that we do not need daily data for benchmarks!!!!