Alerts for abnormal spread before you click buy

[FXS London Scalper]

A spread alert is only useful if it fires before you've already clicked. That sounds obvious, but many setups alert on a timer or at bar close, which can be too late.

What a useful pre-click alert looks like:
- Checks on every tick, not every bar.
- Compares against a threshold that reflects the hour (08:00 and 11:00 UK need different numbers).
- Gives a sound and a visual, because you may be looking at another chart.
- Clears itself when spread normalises, so it doesn't become background noise.

A practical threshold: 2x the median spread for that hour from your own recorded data. Anything above that is unusual enough to justify waiting.

Where to put it:
- On the execution chart, not a separate monitoring window.
- As a label next to the price, e.g. "SPR 0.2" in grey, turning red at threshold.

Some platforms let you add a confirmation prompt to one-click trading. Combining that with a spread label means a quick glance before every order.

One side effect people report: after a few weeks with an alert, they start noticing spread spikes without it. The habit transfers.

What threshold works for your main pair, and how did you pick it?

[Shadow Trader]

The chart most people trade from draws the bid. A buy stop does not care about the bid. It triggers when the ask reaches the level, and the ask is the bid plus the spread, which on most platforms is not drawn at all unless the ask line is switched on.

So the common story goes like this. Price pokes through the buy stop level on the chart, the order does not trigger, and the trader suspects a stop hunt or some other manipulation. Then price reverses and the pending order never fills. Nothing sinister there. The ask simply never reached the level, because the candle high on a bid chart can sit a spread below where the ask actually peaked.

The reverse is just as real. Sell stops trigger on the bid, so they line up with the chart exactly. That means buy and sell breakout orders placed at symmetrical distances from a range are not symmetrical in practice, since the buy side is effectively further away by the spread.

For a scalper working the breakout of a tight range, the spread can be a large fraction of the whole move, so the difference is not cosmetic.

A simple fix is to place buy stops one spread above the level that matters, or to display the ask line and watch that instead of the candle.

Do you add the spread to buy stop placement as a rule, or do you let the order sit on the raw level and accept the occasional miss?