4.23 Lead-Lag Relationships in Global Markets
A leading market forecasts the one that follows, the rarest intermarket edge and the most fragile. Measure it with lagged cross-correlation, demand an economic reason, and expect it to decay.
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A leading market forecasts the one that follows, the rarest intermarket edge and the most fragile. Measure it with lagged cross-correlation, demand an economic reason, and expect it to decay.
Confirmation makes a second related market second a trade before you act. A real trend moves both markets; a false breakout moves one. It cuts whipsaws, at the cost of fewer, later trades.
A currency price is a relative number; the force that moves it lives off the chart. Watch rates, equities, and gold, take the trade only when a majority confirm, and respect the dollar smile.
When two correlated markets agree they tell you nothing; the signal is the disagreement. Divergence flags when leader and lagger split, but you must know which leads, and the lead shifts.
A ratio nets out the move two markets share and keeps only who is winning. Signal off it like a price to rotate between them, but watch for near-zero denominators and whipsaw on both legs.
Crude is the price of energy and a leading inflation gauge. It runs inverse to bonds and the dollar and feeds FX through trade and rates. A supply shock fakes the read, so cross-check copper.
Copper is almost pure industrial demand, so it reads activity before the statistics do and leads bond yields. Use it to gate bonds and growth assets, but a mine strike fakes the signal.
Gold, the dollar, and rates form a closed triangle: rates up, dollar up, gold down. Pin two corners and the third follows. But gold tracks real yields and the triangle jams in a crisis.
Stocks and bonds are two prices set by one rate. Gate long equity signals on the bond trend to strip out drawdown-heavy days, but check the rolling correlation first, since the sign inverts.
One chart is one noisy readout of the macro state. A second market sorts the same days into a better half and a worse half. The lift is small, real, and dies if costs exceed it.
Markets are wired together by inflation, rates, and capital flows. Intermarket analysis turns a second market into a filter on the one you trade, through four repeatable rule templates.
There is no best system, only systems matched to conditions. Two numbers decide: the efficiency ratio picks the family, volatility sets the size. Route to the right cell and gate as regimes drift.