Quant Mashup - Beyond Passive Two Calendar Effects at the Month Boundary [Beyond Passive]This article examines two distinct effects that share the same calendar window and the same tickers. The first is a pure bond seasonality: TLT tends to weaken in the first week of each month and rally in the last few days, regardless of what equities do. The second is a conditioned reversal trade:(...) Fridays for Gold, Tuesdays for Stocks: Two Sides of the Same Fear Cycle [Beyond Passive]The previous article showed that gold drifts higher on Fridays — specifically when the VIX term structure compresses into the extended fear zone, driven by institutional risk managers adding weekend protection on Thursday afternoons. The same day-of-week chart that opened that article contains a(...) The Friday Gold Trade: A Conditional Edge [Beyond Passive]Gold drifts higher on Fridays. The effect is statistically significant, it has persisted for decades, and most traders who know about it trade it unconditionally. The useful question is not whether this is true but under which market conditions it is true — and the answer changes everything about(...) The Calendar Ensemble: Building an Event-Driven Alpha Overlay [Beyond Passive]In the previous article, we established that the Sharpe ratio is the single most important number in portfolio construction. Variance drag scales with the square of volatility, which means a high-Sharpe portfolio can tolerate leverage, survive decumulation, and compound wealth far more efficiently(...)