OPEN-SOURCE SCRIPT

Macro Regime: Market mood + Regime detector

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1. The Core Idea
  • When investors feel confident, they buy high-beta stocks.
    *When they feel nervous, they hide in low-volatility stocks.


Everything in this indicator is just measuring that preference, then checking whether fear is rising fast enough to matter.

2. The Engine: SPHB / SPLV
What these ETFs represent
SPHB = high-beta stocks (move more than the market)
SPLV = low-volatility stocks (move less than the market)

What the ratio means
  • SPHB / SPLV rising → investors prefer risk
  • SPHB / SPLV falling → investors prefer safety


This ratio is your risk appetite heartbeat.

3. Trend Filters (Separating Noise from Regimes)
The moving averages
  • Fast MA (50) → short-term risk momentum
  • Slow MA (200) → long-term risk regime

How they’re used
  • Ratio above the 200 MA → risk-on environment
  • Ratio below the 200 MA → risk-off environment
  • Fast MA crossing slow MA → regime transition

This avoids reacting to every wiggle.

4. RSI: Detecting Overconfidence & Exhaustion
Why RSI is applied to the ratio

You’re not asking “are stocks overbought?”
You’re asking: “Is risk preference itself becoming stretched?”

Interpretation
  • RSI > 70 → investors are crowding into risk
  • Lower RSI highs while ratio makes higher highs → enthusiasm is fading (classic late-cycle behavior)
  • RSI < 30 → panic / forced de-risking

RSI helps separate:
Healthy expansion from Speculative euphoria

5. Stress Filter: Volatility (VIX or VIXY/SPY)
Why this matters

Risk can fall in two very different ways:
  • Orderly slowdown (volatility stays calm)
  • Crisis (volatility explodes)

The stress filter answers: “Is fear becoming systemic?”

How it’s measured
Either VIX, or VIXY / SPY (volatility vs equities)
Converted into a Z-score so spikes stand out clearly.
Interpretation
  • Low stress → normal market functioning
  • High stress → forced selling, margin calls, policy response territory


6. Credit & Breadth (Confirmation, Not Drivers)
These don’t create signals — they confirm them.

Credit: HYG / TLT
  • Junk bonds vs Treasuries
  • Falling → credit risk rising (often leads equities)

Breadth: RSP / SPY
  • Equal-weight vs cap-weight
  • Falling → narrowing leadership, fragile market

If high beta weakens + credit & breadth roll, regime shifts are far more reliable.

7. The Four Regimes (This Is the Payoff)
🟢 Early Expansion
What’s happening:
  • Investors steadily increase risk
  • Credit and breadth cooperate
  • Volatility stays muted

On the chart
  • SPHB/SPLV above 200 MA
  • RSI rising but < 70
  • Green background

How to think: “Risk is being rewarded.”

🟡 Late Cycle / Euphoria
What’s happening
  • Everyone already owns risk
  • Momentum slows under the surface
  • Complacency is high

On the chart
  • Ratio still rising
  • RSI > 70 or divergence
  • Orange background

How to think: “Upside exists, but fragility is building.”

🟠 Slowdown
What’s happening
  • Investors quietly reduce exposure
  • No panic yet
  • Often policy-sensitive phase

On the chart
  • Ratio below fast MA
  • Still above or near slow MA
  • Stress remains low
  • Yellow background

How to think: “Protect gains, reduce beta.”

🔴 Crisis
What’s happening
  • Forced de-risking
  • Liquidity stress
  • Correlations go to 1

On the chart
  • SPHB/SPLV collapses below 200 MA
  • RSI < 30
  • Stress Z-score spikes
  • Red background

How to think: “Capital preservation > return.”

8. Binary Mode: Risk-ON vs Risk-OFF
The script also simplifies everything into a single switch:
Risk-ON
  • High beta trending up
  • Confirmations OK
  • Stress contained


Risk-OFF
  • High beta trending down
  • Stress elevated


This is what you’d use for:
  • Position sizing
  • Exposure limits
  • Asset rotation

כתב ויתור

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