Swap and Rollover Math

The overnight charge is a position, not a footnote.

Advanced 5 min read Course 41 of 60

Course 41 of 60 in the forex hub. The object is swap as rate differential plus markup, a P&L line.

The Overnight Charge Is a Position

The Overnight Charge Is a Position. The honest one-sentence object of this lesson is swap as rate differential plus markup, a P&L line. If you cannot say that without opening a platform, you will size the wrong clock. The failure mode that actually hurts accounts is ignoring swap because it is a line item. Write the object, then size. Educational only.

Analog, not identity: hold past cutoff on purpose or don't. Crypto pairs and listed index futures are a different lesson. Different machine, different hours, different ruin path. Contrast the object with futures hub rather than treating every product as the same machine.

1. What swap is

What swap is is the first working definition. Swap as rate differential plus markup, a P&L line. People skip this because a chart is easier than a specification. A chart is not a spec. If you cannot explain Swap and Rollover Math to a skeptical friend without a screenshot, you do not understand it yet.

Keep a crib note: object, invalidation, dollar cap. Ignoring swap because it is a line item is how cribs get skipped. Do not skip. For the arithmetic habit, use P&L calculator until dollars are boring.

The overnight charge is a position — interest differential plus dealer markup The economic bit Rate differentialLong high-yielder may earnShort it may pay The dealer bit MarkupCan flip the signRead the statement, not a blog

2. Triple Wednesday

Triple Wednesday. Convert every pretty statement into dollars. The arithmetic below is illustration — live ticks, pips, and margins change. Re-read the live schedule.

If swap is −$8/night and you swing 10 nights, $80 vs $243=$100 is most of the budget before the stop.

If that arithmetic already exceeds your cap, the lesson is over: pass or step down in size. Passing is a position. Confirm the dollar translation with stop calculator so the notebook and the statement agree.

Wednesday rollover is often three days of swap (weekend settlement convention) Mon/Tue1×Wed3×Thu/Fri1×journalthe 3×

3. Markup

Markup. Context is not a trigger. Hold past cutoff on purpose or don't. Use context to veto, not to force a click.

When in doubt, name swap as rate differential plus markup, a P&L line again. If the sentence changed, you changed trades without admitting it. Related structure: free calculators.

4. Day-hold vs swing

Day-hold vs swing. Process beats mood. Write the rule that fires without a debate at the worst moment. If the rule is 'I'll see how I feel,' you do not have a rule.

Stops, flatten policies, and session boundaries belong in the same notebook as the thesis for Swap and Rollover Math. If the stop is a price, convert it with listed glossary after you already know the tick or pip.

If you flatten before rollover, swap is ~0. If you swing, it is a line swing P&L = pips ± swap − spread Day-hold swap usually not the story Swing against carry trail must survive it Markup can make 'positive carry' negative Journal swap separately from pips

5. Journal it

Journal it. Fair warning: specs, leverage caps, and dealer rules change over time. The live document wins. Educational only. Not NFA, tax, or a solicitation.

Re-read primary docs before you add size on the object of Swap and Rollover Math. See also previous lesson when the confusion is the venue layer, not the chart.

If swap is not on the journal, your expectancy is a children's book Statement wins Copy the swap line weekly.If it dominates pips, you are in a carry trade.Carry is a different course. Size it as crash risk.

6. Mistakes, limits, takeaways

Mistakes: ignoring swap because it is a line item; copying size from a stream; ignoring costs; mixing this machine with crypto pairs or listed index futures. Another: treating Swap and Rollover Math as advanced because the vocabulary is long rather than because the dollar cap is written. If the sister asset class is the real mix-up, next lesson before you add size.

Maps go stale. Hold past cutoff on purpose or don't. If this lesson and the live spec or statement disagree, the live document wins.

Swap is a daily cost you can see coming

Holding past the daily rollover means paying or receiving swap, roughly the interest gap between the two currencies plus the dealer's markup. Many dealers book the weekend's swap on one weekday, so one night a week costs more. Check which day your dealer uses and how much it charges.

For day traders, swap rarely matters. For anyone holding for weeks it can quietly decide whether a trade made money. Look up the current rate for your direction before you enter, and log swap in the journal as its own line, so you see what it did to your results.

Worth writing down

  • Object: swap as rate differential plus markup, a P&L line.
  • Failure: ignoring swap because it is a line item.
  • Dollars first, leverage last.
  • Skip the window you cannot survive.

Swap and Rollover Math can remain a useful lesson and a poor live habit at the wrong size. Educational only. Not a recommendation to buy, sell, or hold any contract or pair.