Release notes for October 14, 2017

The way things are is the way they always will be.

Starting an introduction to release notes (which are meant to describe the changes to the software) with a phrase like this may come off a bit odd. But odd is right in our wheel house. You see, we make features to give you the information to make better decisions. That is truly all we want to do. If you make better decisions, your portfolio could reflect that. Then you might be more likely to stay using thinkorswim. Then we have a reason to yell down (they hangout in basements) to the developers and say “Hey, they are staying around! We need more data and visualizations!” Then the devs shout “hooray!” Then QA shouts “Hooray!” Then we all fill up with energy drink (we can no longer mention specific crimson male bovine brand names) and get back to work! You know, the way things were, are, and always should be.


On Saturday October 14th we release thinkorswim version 1910. Features include:

New Time Selector in thinkorswim Charts

We have introduced a significant set of changes to the available menu options and layout of the time frame selector in our charting application. You can now customize your quick select menu with a larger number and variety of custom timeframes, and select new ones without navigating through cascading drop down menus.

  • To see the new menu, just click on the old “time frame setup” button immediately to the left of the style button on the chart.
  • There is no need to go to the Style menu to change chart aggregations any longer, all aggregation lengths and types are available in this new menu.
  • All of our pre-built “favorite” aggregations are shown by default when clicking the menu. If you wish to pick a non-standard aggregation click on the type of aggregation you want at the top of the menu (time, tick, or range) and use the selectors there to choose the interval and aggregation period you want.
  • To add an aggregation to your “favorites” click the star icon in the lower left of the aggregation selector menu.
  • To edit the order of your favorites, or remove one from the list, click the “Customize list…” option at the bottom of the favorites menu.
  • We have also expanded the amount of favorites you can add to this list from 10 to 100
  • You can also now change your chart time frame to a specific start time and end time using the Custom tab under the Aggregation type Time.
  • For quick access to all of this the hot combination Crtl+T will open up the ‘time frame setup” window.

Charting Data Expansion

We are happy to introduce a major expansion to the amount of both intraday and daily data available in thinkorswim for all sorts of symbols.

  • Intraday hourly data is now available for all symbols going back up to 360 days.
  • Daily data for US equities and indexes has been expanded to go back as far as 1902.
  • We have also added a couple of new options to the time frame selector to take advantage of this additional data. The “daily” aggregation menu now has an option for to show the “max available” data, automatically displaying all of the daily data we have for a given symbol.
  • Additionally, the time frame menu now has a “custom” option, which will allow you to display only specific date ranges or periods back from the current day.

Intraday Implied Volatility

We have expanded the implied volatility data available for all optionable symbols to display for intraday charts.

  • There is nothing additional you need to do to access this data. The “ImpVolatility” study will work by default on all intraday aggregations.
  • Any thinkscript chart studies you have created using the “imp_volatility()” function will use this data automatically when applied to an intraday chart.

Smaller Enhancements

We have also made several smaller enhancements to several different aspects of the charting platform to improve your trading experience.

  • We have added three new studies and strategies from Technical Analysis of Stocks & Commodities magazine, “VWMABreakouts”, “PriceSwing”, and “RegressionDivergence”. A full description of their outputs and purposes can be found at the Learning Center.
  • Custom thinkscript watchlist columns with a large number of complex expressions will now show in orange and be calculated server side with a different refresh cycle than normal complex columns. This will result in improved calculation times overall for custom watchlist columns.
  • In the Economic Data tab, historical charts of economic indicators will highlight date ranges corresponding with US economic depressions by default. If you wish to deactivate this, just click on the gear icon at the top of the chart and uncheck the “Recession” checkbox.

Happy trading,

The Support Team
thinkorswim by TD Ameritrade