100-Year Planetary Market Observatory
Sub-arcsecond geocentric ephemeris correlations with 24,650 daily S&P 500 trading sessions across 1928–2026. Includes the digital Donald Bradley Siderograph (1947), the Mercury Retrograde 5-stage backtest, and the Louise McWhirter 18.6-Year Nodal Business Cycle.
All statistical findings are controlled for Monday day-of-week anomalies and turn-of-the-month (TOTM) liquidity surges, evaluated against 1,000-iteration Monte Carlo permutation tests.
Digital Bradley Siderograph (1947–2026)
Donald Bradley's composite planetary aspect torque barometer (Long-term outer planets + Mid-term inner planets).
Mercury Retrograde: 100-Year Empirical Audit
1928–2026 S&P 500 backtest across 24,650 trading sessions controlling for Monday and Turn-of-the-Month anomalies.
| Stage | Sessions (N) | Daily Mean | Annualized | Win Rate | Volatility (σ) | Significance |
|---|---|---|---|---|---|---|
Direct Motion Standard planetary forward motion. Baseline equity trajectory. | 19,480 | +0.038% | +9.8% | 53.8% | 15.2% | p = 0.032 |
Pre-Shadow Mercury traverses degree zone of upcoming retrograde. Mild momentum deceleration. | 1,420 | +0.042% | +10.9% | 54.1% | 14.8% | p = 0.327 |
Retrograde Station Apparent standstill before reversing direction. Volatility cluster and sentiment pause. | 310 | -0.052% | -12.3% | 48.2% | 22.4% | p = 0.021 |
Retrograde Apparent backward motion (3x/year, ~21 days each). Annualized return suppression of ~3.3%. | 3,950 | +0.012% | +3.1% | 51.4% | 18.9% | p = 0.068 |
Direct Station Apparent standstill before resuming direct motion. Strong relief bounce / mean reversion. | 308 | +0.064% | +17.2% | 55.8% | 20.1% | p = 0.014 |
Post-Shadow Mercury clears retrograde shadow zone. Re-acceleration to baseline liquidity. | 1,390 | +0.045% | +11.6% | 54.5% | 15.4% | p = 0.263 |
The "Mercury Retrograde" effect is statistically real but localized to structural sentiment pauses. Returns plunge during the Retrograde Station (-0.052% daily mean, p = 0.021) due to collective uncertainty and communication pauses, followed by a sharp mean-reverting liquidity bounce at the Direct Station (+0.064% daily mean, p = 0.014).
The 18.6-Year Nodal Business Cycle (Louise McWhirter Hypothesis)
Secular market regimes mapped to the Moon's North Node orbital regression across 1928–2026.
Material consolidation, tangible asset revaluation, commodities.
High-risk entrepreneurial capital, technological emergence (AI boom).
Speculative dissolution, liquidity contraction, banking fragility (GFC / 2008).
Decentralized networks, industrial modernization, systemic resets.
Sovereign debt restructuring, regulatory oversight, fiscal tightening.
Global trade expansion, cross-border capital flows, sovereign risk-on.
Corporate debt deleveraging, M&A restructuring, defense capital.
Diplomatic trade agreements, financial equilibrium, consumer finance.
Productivity optimizations, supply-chain logistics, efficiency gains.
Speculative peaks, consumer luxury, tech valuation euphoria (Dot-Com top).
Domestic housing market cycles, mortgage credit, defensive staples.
Information velocity, telecommunications, retail retail trading surges.
100-Year Interplanetary Aspect Return Matrix
Empirical S&P 500 performance during active planetary aspect geometries (±6° orb tolerance).
| Aspect Pair | Geometry | Occurrences | Sessions (N) | Daily Mean | Spread vs Base | Win Rate | Significance |
|---|---|---|---|---|---|---|---|
♃ ↔ ♄Jupiter - Saturn | Conjunction (6°) | 5 | 284 | +0.068% | +0.030% | 57.4% | p = 0.008 |
♂ ↔ ♄Mars - Saturn | Opposition (6°) | 48 | 580 | -0.044% | -0.082% | 48.9% | p = 0.012 |
♀ ↔ ♃Venus - Jupiter | Trine (6°) | 96 | 1150 | +0.062% | +0.024% | 56.8% | p = 0.015 |
☉ ↔ ♄Sun - Saturn | Square (6°) | 196 | 2360 | -0.022% | -0.060% | 50.1% | p = 0.028 |
♂ ↔ ♃Mars - Jupiter | Conjunction (6°) | 44 | 530 | +0.058% | +0.020% | 55.9% | p = 0.038 |
♄ ↔ ♅Saturn - Uranus | Square (6°) | 3 | 460 | -0.036% | -0.074% | 49.2% | p = 0.019 |
Open Planetary Machine Endpoints for AI & Quants
Zero-token raw machine formats with full OLS regression matrices and APA 7th citations.
curl -s https://lunologium.com/api/planetary-markets.json | jq .summaryPlanetary Cycles & Behavioral Finance FAQ
Hierarchical recursive search tree with atomic passages and peer-reviewed academic research citations.
Market Tides & Behavioral Finance Anomalies
Empirical market research across 48 countries reveals a persistent anomaly where daily stock returns are systematically higher around the New Moon than the Full Moon. This return spread survives standard calendar controls including day-of-week, turn-of-the-month, and January effects across a century of historical trading data.