Secondly how can I get an accurate measurement?
Thanks
Part of this discrepancy is due to different timeframes, and another part is due to different data providers.
For example, the April 25, 2024 report was using LTM numbers from that time, whereas Morningstar Quant is using last-twelve month numbers as of today. On the other hand, the 5i number is from a different data provider and it's possible it is using adjusted net income, or an equity number that excludes/includes non-controlling interests. Our data sources currently show 3.99% as being the correct number.
ROE works really well for financial companies that retain most of their capital to reinvest. Overall, we do like the metric, and we feel it is important to note that different industries will have different ROE ranges, and share buybacks will also negatively impact this metric.