In regards to the requirement: "Exclusions must apply to entire sub-asset classes uniformly’ - Is it possible to include in the PTB numerator only a portion (%) of an optional sub-asset class based on data availability?
The Portfolio Target Boundary in the FI Near-Term Criteria Version 2.0 can be based on either financed emissions or on an appropriate financial asset metric (such as loan value, invested value and/or assets under management). If using financed emissions, estimates may be used, with the expectation that data quality improves over time.