Stan Weinstein 4-Stage Market Cycle Screener Tool

Updated: October 9, 2026 · Author: Jennie Chu · Reviewed by: Gemral Research Desk · Editorial Policy

Stan Weinstein 30-Week Stage Analysis Screener

Interactive WebMCP tool automating Stan Weinstein's Stage Analysis: screen equity tickers for Stage 2 breakouts, quantify 30-week MA slope, and evaluate Mansfield RS.

Quantitative Stage Analysis & Breakout Screener Engine

Evaluate price action, 30-week moving average slope, breakout volume ratios, and benchmark relative strength across liquid equities.

• Calculated 30-Week MA Slope (%):
• Volume Surge Multiplier:
• Mansfield Relative Strength Spread (%):
• Price Extension from 30-Week MA (%):
• Classified Market Cycle Stage:
• Institutional Screener Filter Status:
• Stage 2 Trade Setup Score:

1. Automated Stage Classification: Codifying Weinstein's Rules

While Stan Weinstein's classical 1988 framework was executed by manually drawing pencil lines across physical weekly chart books, modern algorithmic markets demand automated, quantitative stage classification. This WebMCP tool translates Weinstein's principles into rigorous mathematical filters.

By continuously monitoring the dynamic relationship between price action and the 30-week simple moving average, the screener categorizes any liquid stock into one of Weinstein's four canonical lifecycle stages: Stage 1 (Basing), Stage 2 (Advancing), Stage 3 (Topping), or Stage 4 (Declining).

Automating this taxonomy eliminates human cognitive bias, emotional hope, and confirmation traps, ensuring that traders deploy capital exclusively when market structure is mathematically skewed in their favor.

Whether analyzing large-cap tech equities, semiconductor leaders, or volatile crypto assets, this quantitative screener instantly surfaces prime institutional accumulation setups while sounding early alarm bells on deteriorating distributions. Systematic multi-timeframe stage mapping transforms subjective market observation into rigorous probabilistic trading edges.

2. Calculating the 30-Week MA Slope: The Momentum Threshold

A common mistake among novice technical traders is treating a moving average as a static horizontal price level. In Weinstein's philosophy, the rate of change—or slope angle—of the 30-week moving average is exponentially more important than the nominal value of the line itself.

A stock trading above a flat or slightly declining 30-week MA is not yet in Stage 2; it remains in Stage 1 consolidation and is vulnerable to severe whipsaws. The screener measures slope percentage change across rolling multi-week windows.

A confirmed Stage 2 setup requires a 30-week MA slope turning decisively positive (typically exceeding +1.5% to +3.0% annualized trajectory), proving that the broader institutional consensus has pivoted from defensive distribution to aggressive accumulation.

By quantifying this slope metric across multiple time horizons, the tool filters out premature false breakouts and protects trading accounts from agonizing sideways chop. A rising slope confirms that institutional accumulation is creating an impenetrable floor of dynamic support under price action.

3. The Breakout Volume Surge Multiple: Validating True Breakouts

A breakout on light trading volume is the ultimate red flag of institutional absence. In automated stage analysis, the volume surge ratio serves as a non-negotiable verification gate.

The screener calculates the exact ratio of the breakout week's cumulative trading volume against the rolling 10-week average weekly volume. To earn a passing Stage 2 breakout rating, the volume ratio must exceed a minimum threshold of 2.0x.

Volume multiples exceeding 3.0x or 4.0x receive maximum setup quality scores, signaling profound institutional accumulation that permanently exhausts overhead resistance supply.

Conversely, any breakout attempt that prints volume below 1.5x average is automatically flagged as a high-risk 'Suspect Breakout', alerting traders to withhold capital or wait for a secondary pullback test. Robust institutional accumulation leaves massive, unambiguous volume signatures that cannot be concealed by dark pools.

4. Algorithmic Mansfield Relative Strength Scoring

Stage Analysis dictates that traders should never purchase a Stage 2 breakout in a stock that is lagging the broader market. This screener embeds an algorithmic version of the Mansfield Relative Strength (RS) indicator.

By dividing the asset's cumulative 52-week price performance by the benchmark S&P 500 performance, the engine generates a normalized relative strength spread percentage.

A positive Mansfield spread confirms that the asset possesses genuine institutional momentum and will act as a market leader during broad index rallies. A negative spread immediately disqualifies the asset from top-tier Stage 2 status.

This relative strength gate prevents capital from being trapped in sluggish sector laggards, channeling liquidity directly into high-octane market winners. By comparing individual ticker trajectories against market capitalization benchmarks, traders systematically align their portfolios with secular capital flows.

5. Execution Strategy: Entry Triggers, Pullback Buys, and Risk Bounds

Once the screener identifies a pristine Stage 2 breakout candidate, disciplined systematic execution governs the trade lifecycle. Weinstein advocates two primary entry tactics: the initial breakout buy and the pullback re-test buy.

Traders can purchase half a position on the initial weekly breakout above resistance, reserving the remaining half for a low-volume pullback that successfully bounces off the freshly established support zone near the 30-week MA.

Initial stop-loss levels are mechanically pegged just beneath the breakout level or the prior swing low within the base. As the Stage 2 uptrend matures, the trailing stop is systematically advanced beneath each new weekly consolidation base.

When the asset eventually enters Stage 3 and rolls into Stage 4, this screener flips to short-selling or complete cash preservation mode, securing hard-won profits across macro cycles.