Recovery maths and the daily stop: Risk Management lesson

Why this matters

Losses and gains are asymmetric. A 10% loss needs an 11% gain, a 30% loss needs 43%, a 50% loss needs 100%. The hole is always deeper than it looks from the top.

That asymmetry is why deep damage must be prevented rather than recovered. On an evaluation there is often not enough runway to climb back.

A daily stop closes the loop: cap the day, then the maths never has to climb out of a canyon.

The asymmetry

If equity is 100 and it falls 10% to 90, the climb back is 10 over 90, which is 11.1%. The denominator shrank, so the required percentage grows.

The gap accelerates with depth: 5% depth needs 5.26%, 20% needs 25%, 30% needs 42.86%, 40% needs 66.67%. Half the hole is exactly a hundred percent, which is why a 50% drawdown doubles the work rather than matching it.

Every deep loss also reduces size, which is protective but slows the climb. Deep damage compounds twice, so never let a hole reach half the account if it can be stopped earlier.

The cut point and the one rule

The jump stops feeling proportional at around 20 to 25% depth. Past that cut point, halve the risk per trade and keep it halved until only a third of the hole remains, then resume base size.

Halving slows the climb but protects a fragile base from a second hole. Recompute the trades needed at the reduced size and put that number in the journal as a project, not a session.

Never chase with larger size. Chasing is how one hole becomes two.

The daily stop

Set a money stop for the day, usually half the daily limit so rounding and slip cannot breach the rule. On $100,000 with a 5% daily limit that is $2,500, or five 0.5% losses.

Write it before the first trade, at a figure chosen in peace rather than after three losses.

The stop caps the recovery denominator: a shallow hole needs a short climb. A day that ends 0.2R down because of the stop is cheaper than one that ends 1.5R down chasing.

The three losses rule

Three full-risk losses in a day pauses trading for an hour. It fires earlier and softer than the money stop, and usually means conditions shifted rather than the process broke.

The pause is a circuit breaker, not a punishment. It costs nothing on simulated capital and breaks the tilt cycle.

After the pause, only a clean setup already on the list qualifies. Nothing new, nothing improvised.

Closing the day mechanically

When the money stop is hit, close the platform. Not reduce size, close. Reducing still adds exposure to a day already proved bad.

Closing removes exposure and stops the equity path extending. Reopening is the most common way the stop gets defeated.

Log the day as a stop, not a loss, so the rule reads as working. Over a month a stop fires roughly three times, protecting 3% of days from turning into 6% days.

Climbing back deliberately

After a hole, compute the recovery percentage and the trades needed at current size before deciding anything.

Do not increase size to catch up in the same day; the read is still fresh and poor. Climb with the normal process and accept weeks if the hole is deep, because it was built over time and comes back over time.

The recovery is a project, not a session. Framing it as a session causes a second hole.

Prevention is the strategy

The cheapest hole never forms, so the daily stop and the three loss pause are the real strategy. Both are mechanical, so neither needs willpower at the moment it matters.

Log the depth of every peak-to-trough fall. Anything past 8% says the daily stop is too wide; tighten the stop first, before touching the strategy.

Preventing also preserves the win rate sample, because deep holes tempt process changes that reset the evidence.

Worked example

$100,000 account, 5% daily limit, $2,500 money stop for the day, 0.5% risk per trade, 1:2 targets. Recovery percentages are exact.

Gain needed after a 10% loss	11.11%
Gain needed after a 20% loss	25.00%
Gain needed after a 30% loss	42.86%
Gain needed after a 50% loss	100.00%
Daily money stop at half the 5% limit	$2,500
Losses that fill that stop at 0.5% risk	5
Trades needed to climb a 10% hole at 0.5% risk, 1:2, 40% wins	111
The same climb after only a 5% hole	53

Halving the hole roughly halves the climb. Prevention is cheaper than recovery, every time.

Open the recovery math calculator →

Common mistakes

Reducing size instead of stopping	After three losses a smaller size still adds exposure to a day that already proved bad, and drift continues. Three more half-size losses still cost 1.5% on top of the first 3%.
Setting the daily stop at the limit	Paper slip and spread put you over. Half the limit leaves room for execution error. A 1 pip slip on 5 lots is 50 dollars, which a limit set exactly on the line cannot absorb.
Trading to get even in the same day	Revenge sized trades ignore that expectancy is unchanged and the day's context already shifted. Three revenge trades at 1.6% cost 4.8% against a 3% planned loss.
Ignoring the recovery denominator	Chasing a 20% hole with normal size takes weeks. The size needed to climb is bigger than the size that made the hole.

Checklist

Write the daily money stop before the first trade, at half the limit.
Three full losses: pause for an hour.
Stop is hit: close the platform, no exceptions.
Log why the day went bad, not whether the setups looked fine.
Compute the recovery percentage of any hole before deciding size.
Never increase size the same day to catch up.
Below 80% of starting equity, cut risk per trade.

Key terms

recovery percentage: The gain needed to return to the previous equity peak.
daily stop: A self imposed money loss that closes the trading day.
asymmetry: The gap between a loss and the gain needed to undo it.
flat: No open position.

Trading involves risk. Educational only, not advice. Mark it complete to bank progress.

Recovery maths and the daily stop