There are two categories here: the proof of concept and the operational viability.
A test bench on 250 S&P 500 assets with 64 qubits clearly falls into the first class, interesting but far from our needs.
Managing multi-billion dollar portfolios requires a scalability and robustness that this type of simulation cannot reproduce.
For example, for a sovereign fund like ours, we manage thousands of securities, requiring a depth and an adaptability to macroeconomic shocks that far exceed what is tested here.
The implications for long-term liabilities and risk management are neglected by such an approach.