Backtesting Pine Script means running a TradingView strategy script over historical data to measure its trades, profit and drawdown. TradingView's strategy tester does this on the chart in the browser. To test the same script on institutional tick data with spread, commission and swap, the Orion Quant Technologies Engine compiles Pine v5 and v6 to its own format.
How do you backtest a Pine Script strategy?
A Pine Script strategy is backtested in TradingView by adding it to a chart. The strategy tester runs the script over the chart's history and shows the trades on the chart and in a strategy report. TradingView computes it in the cloud, runs in the browser, and offers Bar Replay to watch the trades unfold bar by bar.
For a second opinion on finer data, with costs that include swap, or with optimization and robustness tests, the same script can run in the Orion Quant Technologies Engine. Pine v5 and v6 compile to the engine's strategy format and then run like any other strategy.
Does the TradingView strategy tester use tick data?
The TradingView strategy tester is bar based. It can use finer intrabar detail, and TradingView has tick charts, but its tick history is limited. A Pine strategy with tight stops therefore depends on how the tester resolves price movement inside each bar.
The Orion Quant Technologies Engine runs a compiled Pine strategy on one of three tiers: OHLC, minute bars, or institutional ticks with bid, ask and the size at the best price. Every run records which tier it used, and two runs can be compared side by side with the difference in their configuration spelled out. More in tick data backtesting.
Can you run Pine Script outside TradingView?
Yes. The Orion Quant Technologies Engine compiles Pine v5 and v6 strategies to its own strategy format and runs them like any other strategy. Anything the compiler cannot translate is refused with its line and column, so you know exactly which part of the script needs a change.
Once compiled, the script uses the engine's data, costs and tools: spread, commission per lot and side, swap with the triple rollover on Wednesdays, grid and genetic search, walk forward, Monte Carlo and the prop firm check. See backtesting costs for why swap matters on trades held overnight.
What do TradingView and the engine have built in for Pine backtests?
TradingView is the home of Pine Script: it writes, charts and shares scripts in the browser. The Orion Quant Technologies Engine adds finer data and robustness tests for the same script. The table lists what each has built in.
| Feature | TradingView | Orion Quant Technologies Engine |
|---|---|---|
| Pine Script | TradingView's own language, v6 current | Pine v5 and v6 compile to the engine's format |
| Market data | Built in market data, tick history limited | Minute bars and every tick with institutional bid and ask |
| Fill detail | Bar based, finer intrabar detail, tick charts | OHLC, minute bars or ticks, recorded with each run |
| Costs | Commission and slippage, swap not built in | Spread, commission per lot and side, swap |
| Optimization | No built in parameter optimizer | Grid and genetic search |
| Out of sample and walk forward | Testing period selectable, no walk forward built in | In and out of sample, walk forward |
| Monte Carlo and prop firm rules | Not built in, community scripts only | Monte Carlo and a prop firm check |
| Charts and replay | Supercharts and Bar Replay | Charts and a visual replay bar by bar |
| Community | Community Scripts to publish, boost and update | Marketplace, forum and leaderboard |
| In the browser | Runs in the browser | Browser build with server runs, desktop app for the full set |
How do you convert Pine Script to MQL5 or a cTrader cBot?
TradingView has no export to cTrader or MetaTrader 5. In the desktop app, the Orion Quant Technologies Engine prints a Pine strategy as an MT5 Expert Advisor (.mq5) or a cTrader cBot, with a list of every construct it translated. The export is exact or it refuses, never a guess.
The exported file is a new program on another platform's engine and data, so its trades will not match the backtest one for one. Run it in that platform's tester and on a demo account before it sees money. See the MT5 strategy tester alternative and cTrader backtesting.
Frequently asked questions
Which Pine Script versions can the engine run?
The Orion Quant Technologies Engine compiles Pine v5 and v6 strategies. Anything the compiler cannot translate is refused with its line and column, so you see the exact spot to change. Once compiled, the strategy backtests, optimizes and exports like any other strategy in the engine.
Will my Pine strategy show the same result as on TradingView?
Not always, and the difference is useful. The engine runs on its own archive with bid and ask, on the fill tier you choose and with the costs you set, swap included. A gap between the two results points to where the strategy is sensitive: fills inside the bar, spread or overnight costs. Check the trades that differ first.
Do I still need TradingView?
Many traders keep writing and charting Pine on TradingView, which runs in the browser and has Supercharts, Bar Replay and Community Scripts. The engine complements it: run the same script on tick data with full costs, test how robust it is, and export it as .mq5 or as a cBot when you want it on another platform.
Is the Pine to MQL5 conversion exact?
The translation is exact or it refuses. The engine lists every construct it translated and names what it could not translate instead of guessing. The resulting Expert Advisor still runs on MetaTrader 5's own engine with your broker's data, so test it in the MT5 strategy tester and on a demo account before you trade it.
Research and testing only. A backtest shows how rules behaved in the past, not what they will earn. Nothing here is investment advice.