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Introducing McClellan Trend Pro...

McClellan Trend Pro is an enhancement of the traditional McClellan Oscillator, a well-known market breadth indicator that helps assess the internal strength of a market by analyzing advancing and declining stocks (ADV/DECL).
What Are ADV and DECL?
- ADV (Advancing Issues): Measures the number of stocks whose closing price in the current trading session is higher than their closing price in the previous trading session. When many stocks on the market increase compared to the previous day, ADV increases.
- DECL (Declining Issues): Measures the number of stocks whose closing price in the current trading session is lower than their closing price in the previous trading session. When many stocks on the market decrease compared to the previous day, DECL increases.
McClellan Trend Pro is based on the classic McClellan formula:Â
McClellan Oscillator = EMA19â â EMA39â
It builds on this solid foundation and takes it to the next level by improving signalsâ reliability.
What makes McClellan Trend Pro better?
- Advanced smoothing algorithms: It uses advanced smoothing filters to reduce chart noise and make trend signals easier to read.
- More moving average options: The classic McClellan Oscillator only uses EMA. But McClellan Trend Pro lets you choose from 11 different types of MAs at your will.
Mechanism of McClellan Trend Pro
1. In an uptrend:
- If the McClellan plot crosses the upper threshold, the trend is likely to rise, generating an upward signal.
- If the McClellan plot exits the upper threshold, the uptrend shows signs of weakening.
- If the McClellan plot returns to the upper threshold, the trend is likely to rise again, generating a resume signal.

2. In a downtrend:
- If the McClellan plot crosses the lower threshold, the trend is likely to fall, generating a downtrend signal.
- If the McClellan plot exits the lower threshold, the downtrend shows signs of weakening.
- If the McClellan plot returns to the lower threshold, the trend is likely to fall again, generating a resume signal.

While McClellan Trend Pro is tailored to traditional ADV/DECL data, if you're seeking broader intermarket analysis, we recommend exploring Intermarket-$pread, designed to let you plug in different instruments and timeframes.
Experience a new approach to trend trading today!
Every listing in our library of indicators for NinjaTrader 8 includes screenshots, requirements, and a plain description. Open it up and judge for yourself.
Dedicated NinjaScript Signals
- Signal_State: 1 = high, -1 = low, 0 = middle
- Signal_Trend: 2 = uptrend strong, 1 = uptrend weak, -2 = downtrend strong, -1 = downtrend weak
Software Changelog
- 12 Apr 2025:Some minor code revision was made.
- 08 Apr 2025:Some minor code revision was made.
- 01 Apr 2025:Some parameters were modified so the indicator can run on any charts
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