I suspect that there are some algos that are not used anymore due to the ECN being dismantled. CSFB - Credit Suisse First Boston The LightPool option doesn't work anymore. https://www.reuters.com/article/us-...-light-pool-stock-trading-venue-idUSKBN1422MK Can IB retire some of the algos? I'm not sure which ones work still.
To be honest. I'd suggest just DMing them. Otherwise the forum could be overrun with brokerage client tickets.