Price Levels

Price levels are indicators that provide key reference prices derived from historical data — previous day/week/month highs, lows, opens, and closes, as well as running extremes and psychological round numbers. These levels act as natural support and resistance zones where price often reacts.

StratBase implements two distinct types of price level indicators:

1. Historical Price Levels

These output the actual price value of the level. For example, if yesterday's high was $50,123.45, then PDH outputs 50123.45.

Use them by comparing price directly:

{ left: "close", operator: "cross_over", right: "PDH" }

This means "price crosses above previous day high."

2. Round Number Indicators

These output a binary signal (1.0 or 0.0) indicating whether the current price is near a round number level.

{ left: "NEAR_ROUND_1000", operator: "greater_than", right: "0" }

This means "price is currently near a round $1000 level."

StratBase includes 34 price level indicators organized into 9 groups:

Previous Day (5 levels)

• PDH — Previous Day High
• PDL — Previous Day Low
• PDC — Previous Day Close
• PDO — Previous Day Open
• PDM — Previous Day Mid (average of PDH and PDL)

Previous Week (5 levels)

• PWH — Previous Week High
• PWL — Previous Week Low
• PWC — Previous Week Close
• PWO — Previous Week Open
• PWM — Previous Week Mid

Previous Month (5 levels)

• PMH — Previous Month High
• PML — Previous Month Low
• PMC — Previous Month Close
• PMO — Previous Month Open
• PMM — Previous Month Mid

Previous Quarter (4 levels)

• PQH — Previous Quarter High
• PQL — Previous Quarter Low
• PQC — Previous Quarter Close
• PQO — Previous Quarter Open

Previous Year (4 levels)

• PYH — Previous Year High
• PYL — Previous Year Low
• PYC — Previous Year Close
• PYO — Previous Year Open

Current Period (1 level)

• CWO — Current Week Open

Running Extremes (4 levels)

• ATH — All-Time High
• ATL — All-Time Low
• YTD_HIGH — Year-to-Date High
• YTD_LOW — Year-to-Date Low

52-Week (2 levels)

• W52_HIGH — 52-Week High (rolling 252-bar lookback)
• W52_LOW — 52-Week Low (rolling 252-bar lookback)

Psychological / Round Numbers (9 indicators)

Round number proximity detectors — output 1.0 when price is within 0.1% of a round level:

• NEAR_ROUND_10000 — Near round $10,000 level
• NEAR_ROUND_5000 — Near round $5,000 level
• NEAR_ROUND_1000 — Near round $1,000 level
• NEAR_ROUND_500 — Near round $500 level
• NEAR_ROUND_100 — Near round $100 level
• NEAR_ROUND_50 — Near round $50 level
• NEAR_ROUND_10 — Near round $10 level
• NEAR_ROUND_1 — Near round $1 level
• NEAR_ROUND_0001 — Near round $0.0001 level (forex pips)

| Condition | Meaning | |-----------|---------| | close cross_over PDH | Price crosses above previous day high (breakout) | | close cross_under PDL | Price crosses below previous day low (breakdown) | | close > PWH | Price is above previous week high | | low > PDM | Price holding above previous day midpoint | | NEAR_ROUND_1000 > 0 | Price is near a round $1000 level | | close cross_over ATH | New all-time high breakout | | close < W52_LOW | New 52-week low |

• Previous day high/low (PDH/PDL) are the most commonly used support/resistance levels for intraday trading
• Combine price level breakouts with volume confirmation for stronger signals
• Round numbers act as psychological support/resistance — especially effective in crypto and forex
• Previous week/month levels are valuable for swing trading strategies
• ATH and W52_HIGH breakouts often trigger strong momentum moves
• Use PDM (previous day midpoint) as a bias filter — above PDM is bullish, below is bearish
• Stack multiple levels together: if PDH, PWH, and a round number align, that creates a strong confluence zone