Previous Day High Low Key Levels, Reach Stats & Alerts [LunqFX]The previous day high and previous day low — PDH and PDL — are the first two levels most intraday traders mark on the chart, together with the previous week high and low. They are not hand-drawn support and resistance: they are objective facts of what the market did, which is exactly why price keeps reacting to them. This indicator plots those key levels automatically on any symbol and any timeframe, shades the previous day's range, tracks which levels are still untested, and answers the question no other levels tool answers — how often price actually reaches them on the instrument you are trading.
❶ THE LEVELS IT PLOTS
Every level is taken straight from the instrument's own higher-timeframe candles, so nothing needs configuring and it works the same on forex, gold, indices, crypto and stocks.
PDH and PDL — previous day high and low. The core intraday support and resistance levels.
PWH and PWL — previous week high and low. Higher-timeframe context for swing trading.
PMH and PML — previous month high and low, optional, for the bigger picture.
Each level is labelled with its name and exact price, and each timeframe gets its own label column on the right, so levels sitting at almost the same price never overlap.
❷ UNTESTED vs TESTED — WHICH LEVEL STILL MATTERS
This is the difference between a level that will move price and one that already has.
UNTESTED — price has not returned to it in the current period. It is drawn bright, solid and glowing. Untested levels are the strongest magnets, because the orders resting there have not been filled yet.
TESTED ✕ — price has already traded through it. The line turns dashed and dim, and the label gets a ✕. Its pull is spent, so you stop treating it as a fresh level.
The dashboard also names the NEAREST MAGNET: the closest untested level above or below price, which is the most likely place price travels to next.
❸ REACH STATS — WHAT MAKES THIS DIFFERENT
Most key-level indicators simply draw lines and stop there. This one measures how your symbol actually behaves, over the last 100 completed days:
PDH reached — the share of days on which price traded all the way up to the previous day's high.
PDL reached — the same for the previous day's low.
Break rate — of the days that did reach the level, how often price closed through it instead of rejecting from it.
That turns a line into a decision. If the previous day high is reached on 68% of days but broken on only 27% of them, a rejection is far more likely than a breakout — so you plan a fade, not a chase. On another symbol the numbers flip, and so does the plan.
❹ HOW TO TRADE IT
1 — Read the DAY RANGE state. INSIDE RANGE means balance and rotation: fade the edges back toward the middle. EXPANSION means price has left yesterday's range and the day is trending: trade continuation, not reversals.
2 — Pick the target. The NEAREST MAGNET is the closest untested level — use it as the objective for a trade you are already in.
3 — Check the stats before you commit. High reach rate with a low break rate favours fading the level; a high break rate favours trading the breakout through it.
4 — Trade the reaction. Wait for price to arrive at an untested PDH, PDL, PWH or PWL, then enter on the rejection or on the break, using the level itself as your invalidation.
5 — Look for confluence. Weekly and monthly levels outrank daily ones, and when a daily level sits right on top of a weekly level, that is the strongest zone on the chart.
❺ HOW IT WORKS
Each level is read from the previous completed higher-timeframe candle, using the offset pattern that keeps higher-timeframe data fixed, so a level never changes after it is drawn. A level is flagged tested the moment price trades through it, and resets when the new period begins. The reach statistics are calculated only from completed daily candles: the share of days whose high reached the prior day's high, whose low reached the prior day's low, and — as a conditional rate — how many of those days closed beyond the level. Nothing repaints and nothing looks into the future.
SETTINGS — turn day, week and month levels on or off, hide tested levels, shade the previous day and week range with adjustable transparency, control level width, right extension and line thickness per timeframe, switch the custom candles off, and place the dashboard strip where you want it.
ALERTS — previous day high reached, previous day low reached. Both fire on closed bars only.
This indicator is an educational market-analysis tool, not financial advice. The reach statistics describe past behaviour on the current symbol and do not guarantee future results. Always confirm with your own analysis and manage your risk.
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