A Renko Symmetrical Triangle Bearish Breakout occurs when the bricks fall below a triangle of lower highs and higher lows. Renko charts are built from bricks of a fixed size that ignore time and small price moves: a white brick is added when the price rises by one brick size, a black brick when it falls by one brick size. The converging swings show a market in balance, and the downside breakout shows that sellers have won and often starts a new decline.