mass_index — MASS Index

Category: Volatility · Composite

Reading the response

Use POST /api/indicators?explain=true to include interpretation notes at indicators[responseKey].explain. Read numeric results from columns and data in the same object.

This is a volatility indicator.

Parameters

Parameter	Type	Default
ema_length	int	9
length	int	10

Output columns

Column
mi

Native features

This indicator has no independent native feature signals.

Describes accumulated range ratios; no complete expansion/contraction confirmation exists, so reference level 27 is not a reversal event.

With signals: true, this indicator returns signals: null. Numeric values and charts remain available; no crossing, divergence or trade rules are added.

Example call

curl -X POST -H "Authorization: Bearer mq_xxx" \
  -H "Content-Type: application/json" \
  -d '{
    "exchange": "binance",
    "market":   "perp",
    "symbol":   "BTCUSDT",
    "interval": "5m",
    "limit":    100,
    "calc":     [{"name": "mass_index", "params": {"ema_length": 9, "length": 10}}]
  }' \
  https://api.mobiusquant.ai/api/indicators

Full interpretation guide

Field meanings, interpretation rules and usage notes are documented in Chinese at:

mass_index (中文详情)

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