thinkScript strategy workflow
Backtesting on thinkorswim means applying a thinkScript strategy to historical chart bars and reviewing its simulated orders and report under stated assumptions.
Source review completed
Prompt brief
ThinkScript · one source file
Example request
Create a long-only thinkScript strategy that enters on a confirmed 20/50 EMA crossover, exits on the reverse crossover, exposes trade size as an input, and avoids repeated entries while already long.
To run a thinkorswim backtest, express the rules as a strategy that uses AddOrder, add it to a chart, set the symbol, aggregation, date range, order size, commission, and slippage assumptions, then inspect the strategy report. Treat the result as a conditional simulation rather than a forecast.
Practical workflow
Define entries, exits, repeated-signal handling, position direction, and any session filter so another person could reproduce the same decisions from the same bars.
Represent the rules in one strategy source file. Add explicit inputs and use AddOrder only for the simulated entries and exits you intend to measure.
Choose the symbol, aggregation, history, order size, commission, and slippage assumptions. Record these settings with the result.
Inspect trades, drawdowns, unusual fills, and performance concentration. Recheck the result on unseen dates and less favorable cost assumptions.
Historical simulated performance is sensitive to data and assumptions. It does not demonstrate future profitability or executable live fills.
A thinkorswim strategy annotates historical bars with simulated orders. The strategy report summarizes the trades produced by that source on the current chart context. Changing the aggregation, date range, or strategy properties can change the trade sequence and reported outcome.
The test is therefore a reproducible experiment only when the code, inputs, chart, and cost settings are preserved together.
Pineify can turn explicit rules into an editable strategy and revise the source. It does not run the native thinkorswim report or validate the broker data used by the platform.
Review bar offsets for future data, confirm the intended price is used for each condition, and test whether the first usable bar has enough history. Then compare a sample of simulated orders with the underlying bars.
Pineify thinkScript workflow
Give the Coding Agent the formula, inputs, plots, alerts, and edge cases. It returns one editable study or strategy file and keeps focused revisions in the same code artifact.
A thinkorswim script is source code written in thinkScript. Most chart scripts are studies that calculate plots, labels, colors, or alerts, or strategies that add simulated orders for historical analysis. Pineify can generate and revise one editable study or strategy file from a plain-English specification.
Read guideOpen Charts, select Studies, then Edit Studies. Choose Create for a study, or open the Strategies tab and create a strategy. Paste the thinkScript source into the editor, give it a unique name, save it, and add it to the chart. A .ts file can also be imported through the editor. Fix every parser error before treating the script as installed.
Read guidethinkorswim includes a studies library for common indicators and a thinkScript editor for custom studies. There is no universal best indicator for day trading. Select a study by its calculation, inputs, chart context, and failure modes, then test whether its signal adds information beyond price alone.
Read guideLast verified:
Pineify provides information and code-generation assistance, not investment advice. Generated scripts, strategy reports, simulations, and historical examples cannot predict prices or guarantee returns. Review every script and test it in thinkorswim before relying on its output.
Yes. Add a thinkScript strategy to a chart and review its simulated orders and strategy report. The result depends on the source, chart data, inputs, and strategy properties.
A study calculates chart output such as plots or alerts. A strategy adds simulated orders so specified rules can be reviewed on historical chart data.
No. Pineify generates or edits the thinkScript strategy source. You run the strategy and inspect its report inside thinkorswim.
Generate one editable thinkScript study or strategy, inspect the source, request focused changes, and complete the final check in thinkorswim.
Pineify generates source code. thinkorswim remains the platform authority for parsing and chart behavior.
