If you’re instructing a stock trading on the SETSqx platform then T212s default is to place it via the RSP in to the intraday auction. This is entirely understandable until the auction provides no legitimate 2 way price because of lack of liquidity. There are technical and non technical solutions to this. One, find RSPs happy to execute rather than placing the order on-book. It’s what Freetrade seem to do. There RSP network is limited yet GGP executes immediately. The other solution is T212s broker to pick up these pending orders and voice trade them. Just go to a market maker directly who’ll make you a price. It raises best execution issues but my compliance officers were always happy to sign off when I had to do similar things for clients back in my days of managing brokerage teams.