Good day @kennedyp So, I believ as it is related to historical snapshots report in Sales Analytics can not be modified and customized - there is no option to build the report I mentioned above, correct?
The custom report builder is much more limited in terms of viewing historical data, correct. That said, you may be able to see a current snapshot of deals that were opened/won within a specific timeframe in addition to the associated companies or other deal data, though the conversion rate may need to be done manually.