Question 1

What are price levels?

Accepted Answer

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.

Question 2

Two types of price levels

Accepted Answer

StratBase implements two distinct types of price level indicators:

Question 3

1. Historical Price Levels

Accepted Answer

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."

Question 4

2. Round Number Indicators

Accepted Answer

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."

Question 5

Available price level groups

Accepted Answer

StratBase includes **34 price level indicators** organized into 9 groups:

Question 6

Previous Day (5 levels)

Accepted Answer

- **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)

Question 7

Previous Week (5 levels)

Accepted Answer

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

Question 8

Previous Month (5 levels)

Accepted Answer

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

Question 9

Previous Quarter (4 levels)

Accepted Answer

- **PQH** — Previous Quarter High - **PQL** — Previous Quarter Low - **PQC** — Previous Quarter Close - **PQO** — Previous Quarter Open

Question 10

Previous Year (4 levels)

Accepted Answer

- **PYH** — Previous Year High - **PYL** — Previous Year Low - **PYC** — Previous Year Close - **PYO** — Previous Year Open

Question 11

Current Period (1 level)

Accepted Answer

- **CWO** — Current Week Open

Question 12

Running Extremes (4 levels)

Accepted Answer

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

Question 13

52-Week (2 levels)

Accepted Answer

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

Question 14

Psychological / Round Numbers (9 indicators)

Accepted Answer

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 leve

Question 15

Example conditions

Accepted Answer

| 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 |

Question 16

Tips

Accepted Answer

- 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, belo