Strategy · Pine Script v5 · On the chart

Tuple Return Custom Function

by Snappni

The strategy plots fast and slow exponential moving averages with their difference as spread on the price chart.

View on GitHub

GitHub stars1on the repository
Pine versionv5runs as is
Lines of code19
Settings0inputs
LicenceMIT
Last update4 months ago6 Jun 2026

Add It to Your TradingView Chart

  1. 1Copy the scriptPress Copy script above, or the copy button on the code below.
  2. 2Open the Pine EditorOpen a TradingView chart and choose Pine Editor at the bottom of the screen.
  3. 3Paste over the templateCreate a new strategy, select all of the template text and paste. Press Save and give it a name.
  4. 4Add it to the chartPress Add to chart. The trades and results appear in the Strategy Tester tab; adjust the settings with the gear icon.

Source Code

19 lines of Pine Script v5 from apps/server/src/pine-corpus/tuple_return_custom_function.pine, published under MIT. Keep the author's credit and licence lines when you reuse it.

tuple_return_custom_function.pine
//@version=5
strategy("Tuple Return Custom Function", overlay=true)

f_signal(src) =>
    fast = ta.ema(src, 9)
    slow = ta.ema(src, 21)
    spread = fast - slow
    [fast, slow, spread]

[fastLine, slowLine, spreadLine] = f_signal(close)

longCondition = spreadLine > 0 and spreadLine[1] <= 0
shortCondition = spreadLine < 0 and spreadLine[1] >= 0

if (longCondition)
    strategy.entry("Long", strategy.long)

if (shortCondition)
    strategy.entry("Short", strategy.short)

Overview

Tuple Return Custom Function enters long when the spread line crosses from negative to positive and short when crossing from positive to negative. Positions stay open until the opposite crossover signal. No exit rules or stop loss are defined. No input settings modify the 9 and 21 periods or other parameters.

Details

Published by

Snappni on GitHub

Type

Strategy, Pine Script v5

Draws

On the price chart

Category

Moving averages, Oscillators & momentum

Markets

Any symbol

Timeframes

Any timeframe

Risk Notes

  • The strategy enters trades without a stop loss
Third-party code. ForexR did not write, test or endorse this script, and the summary above was generated automatically from its code and README. Indicators describe the past, and a strategy's backtest can look better than live trading, especially when a script repaints. Check it in the Strategy Tester and on a demo account before you rely on it.

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