A three-horizon moving-average stack as a construction problem

A trio that marks a change of stage

A trend-stage procedure can be assembled from three moving averages of different lengths. Relative order and crossovers mark when a market leaves a quieter basing interval and enters a directional advance or decline.

Those three lines are a moving-average trio: a short, intermediate, and long average read together as one stage-and-trend instrument rather than as three separate lines.

Lookback spacing comes first

The three lookbacks must be clearly short, intermediate, and long relative to one another. Similar lengths weaken the stack as a reading of acceleration or deceleration.

Lookback spacing is that gap in length. It is what lets the trio show whether shorter-horizon price is outrunning or lagging longer-horizon price.

One specified construction uses 10-, 20-, and 50-period exponential moving averages on weekly bars so that alignment changes persist longer and shorter-bar noise is reduced.

Bullish and bearish alignment

The strongest upward stack is all three averages rising with the short average above the intermediate and the intermediate above the long. That state is bullish alignment.

The strongest downward stack is the reverse order with all three declining. That state is bearish alignment, with the averages falling and sitting in long-over-intermediate-over-short order.

Alignment names the lasting short-then-intermediate-then-long order in the direction of the move. Realignment names only the brief transition into that order.

The first-alignment bar is the setup

The construction treats the first bar on which the three averages complete a bullish or bearish stack as the setup bar, not later bars that merely remain stacked. That session is the first-alignment bar. Its high or low becomes the follow-through trigger.

A long is considered only if later price exceeds the high of the first bullish-alignment bar. A short is considered only if later price breaks the low of the first bearish-alignment bar. That later break is the follow-through entry, so the procedure does not act before price confirms the stack.

The long-horizon filter vetoes opposing entries

The 50-period average is a directional constraint. The procedure does not initiate longs while price is below that average or shorts while price is above it. That rule is the long-horizon filter.

A short-over-intermediate cross that remains beneath the 50-period average is not counted as a completed upward realignment.

When two bars could be first

If two adjacent bars could be the first stacked bar and the software does not print indicator values, the construction uses the more conservative of the two session extremes as the follow-through threshold.

The same stack on other bars

The same stack can be applied on daily or hourly bars. Exits are defined separately as a close through the 20-period average, a break of the stack, or a recent swing extreme.