The Volume Boundary Oscillator (VBO) by Stellar Strategies is a professional-grade volume indicator designed to transform raw volume data into clear, bounded signals within a range of -1 to +1. It uses Hyperbolic Tangent mathematics to compress volume spikes, preventing chart scale distortion during high-impact events. The VBO visually separates bullish (green) and bearish (red) volume in histograms, highlighting market control dynamics.

Key features include non-repainting signals, candle coloring on the main chart for high volume, entry/exit arrows, and extended vertical lines to correlate volume with price action. It offers full customization of visual elements and sound alerts for critical volume thresholds.

The indicator is intended for time-based charts (e.g., 1-minute, hourly, daily) and is not compatible with Renko, Range, or Tick charts. Traders can use the ±0.8 threshold to identify extreme market activity, distinguishing breakouts supported by smart money from potential exhaustion or reversals. The yellow signal line serves as a volatility baseline, with histogram crossings often preceding strong moves.

VBO supports multiple markets and symbols including Forex, Crypto, Stocks, Commodities, and Indices such as BTCUSD, EURUSD, GBPUSD, NAS100, and XAUUSD.