MilanOS-Premarket H/L.PDH/L & Opening Candle This script draws five key daily reference levels on your chart that day traders commonly watch:
Premarket High & Low (Red Lines)
Starting at 4:00 AM EST, the script tracks the highest and lowest price during premarket hours (4:00 AM–9:30 AM). As premarket progresses, these levels update in real time — if price makes a new high or low, the line moves to match. Once RTH opens at 9:30, the lines stay locked in place. These levels matter because premarket establishes the range where overnight traders agreed on value, so breaks above or below often trigger momentum.
Opening Candle (Green Line)
At exactly 9:30 AM when the regular session begins, the script places a line at the open price of the first candle. For a green candle this is the body bottom, for a red candle it's the body top — either way it's the open price. This level acts as a "line in the sand" for the day. Price holding above it is bullish, losing it is bearish.
Previous Day High & Low (Yellow Lines)
The script tracks the full regular session high and low each day, then carries those values forward as reference levels the next morning. They're drawn starting at 4:00 AM alongside the premarket lines. PDH and PDL are significant because they represent the extremes of the prior day's auction — breaking above PDH suggests continuation strength, while breaking below PDL suggests weakness.
How it resets: Every morning when premarket begins, all five lines from the previous day are deleted and fresh ones are drawn. The PDH/PDL values roll forward automatically from the prior day's tracked range.
Customization: Each of the five levels has its own color picker, line width (1–5), line style (solid/dashed/dotted), and show/hide toggle. Labels can be turned on globally with adjustable size. Lines can extend right, both directions, or not at all.
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