Trading on days the market closes early.

Several days per year, the US stock markets close early, typically at 1pm New York time. This can cause some issue with your normal TAT setup, schedules, and settings. There are some things to make note of that you may want to change.

Here are our recommendations:

ITM Protection

ITM Protection settings are hard coded based on US market close time and are not impacted by the local market close time in your TAT Settings. If you wish to have ITM protection working for the last few minutes of a shortened trading day, you will need to add that extra time to the Minutes Before Close. For example, if you want it active for the last 10 minutes of the day, and half days usually close 3 hours early, you would want to make it active for 190 minutes.

Settings - Market Close

We recommend that you do not change the market close time in your TAT settings. There are too many other items in TAT that depend on the market close time that would be impacted by changing it. If you leave it as is for the full day closing time, TAT will run the end of day expiration and settlement tasks as the normal times, so there will be a delay before expired positions are actually marked expired.

Settings - Convert to Short Stops

You should adjust the time to convert to short stops 

Scheduled Trades

If you do not change the Market Close time, we also recommend that you disable any entries that would occur after the market is closed. If not, TAT will continue to try to place those trades, which will be rejected by TWS. 

Scheduled Exits

If you have trades scheduled to exit at a specific time, you may want to wish to change those.

Trade Re-Entries

Trade re-entries that are normally set to not re-enter after a certain time, might need to be updated as well if you don't re-entries placed leading up to the end of the shortened market day.