Place the Stop Where the Idea Dies, Then Judge the Trade

[Fairman]

Place the Stop Where the Idea Dies, Then Judge the Trade

Continue with the swing list from the previous drill. Price is at 1.1085 after pulling back from 1.1105. You are considering a long, targeting the recent high at 1.1110. The last higher low is 1.1070.

First, where is the idea wrong? If price closes below 1.1070, the higher-low structure is broken. Add a buffer of 5 pips for noise: the stop goes at 1.1065.

Second, the arithmetic. Entry 1.1085, stop 1.1065, risk 20 pips. Target 1.1110, reward 25 pips. The reward-to-risk ratio is 25 divided by 20, or 1.25.

Third, include the spread of 1 pip. Effective risk is about 21 pips and effective reward about 24, a ratio of roughly 1.14.

Fourth, ask what win rate this needs. Break-even is risk divided by risk plus reward: 21 divided by 45 is about 47 percent. A setup that must win nearly half the time to break even, with no extra edge, is not attractive.

The decision: skip it, or wait for a deeper pullback. If price retraced to 1.1072, the same stop gives 7 pips of risk and 38 of reward, a ratio above 5.

This is the real use of a stop at an invalidation level: it tells you whether the trade is worth taking before you take it.

Exercise: rework the entry price to see at what level the ratio first reaches 2.

[FXS HongKong Scalper]

A 1.25 ratio with spread included is marginal for many strategies. Sometimes the best decision is to skip the trade and wait for a better entry closer to the higher low, which improves the ratio without changing the idea.

[Fairman]

The break even calculation is the key step. With a ratio of about 1.14 after the spread, the setup needs to win about 47 percent of the time just to break even. Many setups don't have that edge, so the decision to skip is sound. The exercise shows that a trade can have a logical stop and a logical target and still not be worth taking. Placing the stop at the invalidation level first, then checking the ratio, prevents the common mistake of shrinking the stop to make the ratio look better, which only moves the stop to a place where it's likely to be hit by noise.

[Amanhasnoname]

Working the exercise out, with the stop at 1.1065 and target at 1.1110, the ratio first reaches 2 at an entry of 1.1080. That is 15 pips of risk and 30 of reward. Counting the 1 pip spread as in the post, an entry of 1.1079 gives 14 plus 1 of risk and 31 minus 1 of reward, which is 15 and 30, so the same ratio of 2. Either way, price only has to pull back around 6 pips from 1.1085 for the trade to be worth taking.

What I noticed in my journal is that shallow pullbacks to a pre calculated level only fill about 40 percent of the time. The other 60 percent price turns earlier and runs without me. I accepted that, because the trades I do get have a break even win rate near 33 percent, and a missed trade costs nothing.

So I set a limit at the calculated level and walk away.

[Fairman]

Working the exercise: for the ratio to reach 2 before the spread, the reward must be twice the risk. With the stop at 1.1065 and the target at 1.1110, an entry at 1.1080 gives a risk of 15 pips and a reward of 30, exactly 2. Including a 1 pip spread, the bid would need to dip to about 1.1079, so the fill at the ask is 1.1080, giving 15 pips of effective risk against 30 of effective reward. So a limit order around 1.1079 or 1.1080 would turn this setup into one with an acceptable ratio. Whether price pulls back that far is the question, but placing the order costs nothing.

[Fairman]

The deeper pullback to 1.1072 gives a ratio above 5, which looks excellent. But it's worth asking how likely that pullback is. Price at 1.1072 would be only 2 pips above the last higher low, so a pullback that deep is also close to breaking the structure. Some of those trades would fill and then continue down through 1.1070, stopping out. Others would fill and bounce strongly. Testing how often pullbacks to within a few pips of the last higher low lead to continuation, on past swing data, would give a realistic win rate to pair with the attractive ratio.

[Fairman]

This exercise ties together the swing structure from the previous thread with practical trade planning. The invalidation level comes from the structure, the target comes from the structure, and the entry is the only variable the trader controls. Choosing the entry so the ratio works, and waiting for price to reach it, is a disciplined approach. Has anyone here used limit orders at calculated entry levels like this, rather than entering at market? I'd be interested in how often the orders filled and whether the better ratio made up for the trades that were missed.