Exposure pressure: how open risk consumes fresh capacity.

The arithmetic

From authorized pool to remaining capacity.

The chain is short and unforgiving. The gate ladder authorizes a pool — say 29% cycle risk. Active open risk is measured, not estimated: every open position's remaining stop distance in account terms, summed. Subtract active open risk from the pool and what is left is remaining pool capacity — the only capital fresh trades are allowed to consume. Exposure pressure is the ratio: active open risk divided by authorized pool. At 11% open against a 29% pool, pressure reads 37.9% — meaning fresh deployment is already competing for less than two-thirds of the cycle's authority. Every term in that chain is measured from live positions rather than estimated, because an estimated pool is a pool that flatters whoever is estimating it.

Break-even is not zero

A trade at break-even still burdens the account.

The most common sizing error in discretionary trading is treating a position whose stop has moved to entry as free. It is not free: it consumes margin, correlates with the fresh idea, occupies operator attention, and can gap through its stop. MARS treats open trades as active exposure until they close, which is why remaining capacity shrinks even when the P&L column shows nothing at risk. The pool measures commitment, not paper loss. The distinction the pool draws is between capital that is spoken for and capital that is free, and a break-even position is firmly in the first category.

Reading the pressure number

The ratio is a fuel gauge, not a grade.

Exposure pressure has no good or bad value in isolation — it reports how much of the cycle's authority is already committed, and the same reading means different things at different points in a cycle. Forty percent pressure on a Monday is a book being built; the same forty percent on a Thursday with two sessions left is a book that has spent its week. What makes the number operationally useful is its direction and its timing, which is why the Console reports it alongside cycle progress rather than as a standalone score. A gauge tells you how much is left. It does not tell you whether you were right to spend it.

Where the arithmetic goes wrong

Two measurement errors quietly inflate remaining capacity.

The calculation is only as honest as its open-risk input, and it fails in two predictable ways. The first is stale stop distances: a position whose stop has been trailed carries less remaining risk than it did at entry, and using the entry figure understates capacity while using a hoped-for figure overstates it. The second is correlation blindness — three positions in the same currency are not three independent risks, and a naive sum treats them as though they were. MARS measures remaining stop distance in account terms at the current stop, and the correlation question is escalated to the exposure layer rather than buried in the sum.

• Measure remaining stop distance at the CURRENT stop, never at entry.
• A break-even position still consumes pool — commitment, not paper loss.
• Correlated positions are one exposure wearing three tickets.

Pressure across the cycle

The same reading means different things on different days.

Exposure pressure is most informative as a trajectory. A book that reaches sixty percent pressure early and then holds there while positions resolve is behaving normally; the pool is being used and released. A book that climbs steadily through a cycle without ever releasing is accumulating rather than trading — positions are being opened faster than they resolve, and the pressure reading is describing a queue rather than a strategy. The Console reports pressure alongside cycle progress for exactly this reason. What an operator should watch is not the level on any given morning but whether the level is coming down between deployments, because a pool that never drains is a pool that will eventually refuse the one setup that mattered.

What the directive produces

Six inputs, one instruction.

The Throttle's output is deliberately singular: effective fresh trades, effective per-trade risk, and the deployment directive. The operator never solves the arithmetic under pressure — the panel already did. The discipline is in obeying an instruction computed while calm rather than negotiating one while exposed.