Hi Harrison,
This issue popped up every couple of months since 2012.
Then (December 2012) Fawce indicated as follows:
“We need to add limit and stop orders, time in force, access to the current open orders, and order cancellation.”
“Please let us know if you find other holes!”
And the community responded uncountable times.
Just to mention a few:
Good-‘Til-Cancel (GTC) orders are crucial for successful deployment of capital.
Such nonvolatile orders will contribute to the platform's:
- RELIABILITY accuracy and dependability of a system to produce results;
- FAULT TOLERANCE the ability to continue operating properly following disruptions or faults;
- SECURE PORTFOLIO the ability to liquidate an asset that went the wrong direction, even when the Quantopian server is having difficulties access the broker;
- KEEP LEVERAGE AT BAY as you, Harrison correctly indicated above.
After four years of clear indication from the community, the need is covered explicitly from all sorts of angles; Now is the time for Quantopian to give this issue the attention it deserves.