Traditional stock screeners let you find setups in any market condition. This is one of the primary reasons retail traders lose capital. A technically perfect stock breakout in a volatile, fear-spiking market will fail at a statistically higher rate than the same breakout in a calm, trending market. The macro environment is not a secondary consideration — it is the primary filter.
The Two Macro Inputs
The Weather Engine uses two independent inputs that measure fear and structural trend simultaneously:
India VIX measures implied volatility — essentially, the market's collective expectation of how much the index will move in the near term. Rising VIX means rising uncertainty and institutional risk-off behavior. Falling VIX means calm, trending conditions where directional strategies perform better.
Nifty 50 vs. Moving Averages measures the structural health of the index itself. Is the index above or below its key dynamic support levels? A death cross condition (short-term average crossing below long-term average) is a warning sign that the primary trend has shifted to defensive.
The 5 Market Regimes
By combining these two inputs, the Weather Engine outputs one of five market regimes — each with a specific hypothetical exposure modifier that models position sizes accordingly:
Bull Market
Calm VIX + Nifty above key supports. Full benchmark position sizes. Primary hypothetical markup environment.
Neutral Market
Slightly elevated VIX or mixed Nifty structure. Models hypothetical exposure at 80% of normal benchmark size.
Caution Market
Nifty showing structural weakness below key support. Models hypothetical exposure at 50% of normal sizing.
Volatile Market
VIX spiking into high territory. Hypothetical entries are suspended. Inactive monitoring profile.
Bear Market
Death cross confirmed on Nifty 50. Primary trend is down. Hypothetical capital protection alignment. Observation only.
The exposure modifier is not optional — it is the mechanism that models hypothetical position adjustments during changing macro conditions. The Weather Engine models these shifts using an objective, rules-based calculation framework derived from market data to demonstrate how risk parameters adjust dynamically.
Static Screeners vs. the Weather Engine
Traditional stock screeners don't have a macro layer. They will show you technically perfect setups in a Bear Market regime with the same ranking as in a Bull Market. The trader is left to apply their own macro judgment — which is where emotional bias enters. The Stoxlitix Weather Engine removes this gap by making the macro regime a mandatory, quantitative gate that all trade evaluations must pass through first.