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Spot-forward divergence around holidays

Posted: Wed Oct 28, 2026 6:37 am
by Shadow Trader
When a holiday in one of a currency pair's countries falls on a value date, settlement shifts, and swap points change. Forward prices, and the swap rates charged on rollover, can jump. The effect is mechanical, but it surprises traders who see an unexpected charge on their statement.

Around major holidays, such as US Thanksgiving, Japan's Golden Week or Easter, value dates for certain pairs skip days, and the swap for that rollover covers more calendar days. A position rolled on the day before can be charged for two or three days of interest.

Additionally, liquidity in forward markets thins around holidays, and spreads on tom-next swaps widen, adding to costs.

For intraday scalpers, none of this matters unless positions cross the rollover time. For anyone who occasionally holds overnight, it's worth checking the broker's holiday swap calendar, which many publish.

An accidental overnight hold on the wrong day can cost several times the normal swap, a small but entirely avoidable leak.

A further distinction is between price-sensitive and price-insensitive flows. Real money rebalancing and corporate hedges don't care about the current price in the short run, and will transact whatever the level. Fast money cares intensely. When insensitive flows meet sensitive ones, odd price behaviour results.

For retail traders, asking "who is likely on the other side of this trade, and why would they be willing to lose?" is a useful discipline.

A framework that some traders find useful is classifying moves by their likely source. Type one: scheduled news, with identifiable cause and fast reaction. Type two: flow-driven moves around fixes, month-ends and expiries, with predictable timing but unclear size. Type three: positioning-driven moves, often sharp and counter-trend, tied to crowded trades. Type four: technical cascades, where stops and orders cluster at obvious levels.

Each type has a different typical shape, duration and follow-through. News moves can persist if the surprise is large. Flow moves tend to fade after the window closes. Positioning moves overshoot and retrace. Technical cascades are fast and often partially reversed.

Labelling each significant move in the journal with a guess at its type, and later checking the guess against what happened next, builds a feel for the differences. The labels will often be wrong, and that's fine. The practice of asking "who is trading and why" shifts attention from patterns on the chart to the forces behind them.

Has a holiday swap charge ever appeared unexpectedly, and is there a calendar for them now?