2014issue C0718-25
Renko brick increment and open construction
A new Renko column appears only after price clears the prior brick by a preset increment. Standard and modified layouts differ on where the next open sits, whether a wick is drawn, and how gap-fill bricks relate to traded prices.
- A new renko-brick column is drawn only after price clears the prior block by the locked brick-size increment, and standard construction follows price path rather than clock time.
- When a move is larger than one increment, virtual-brick columns fill the jump even if no trade printed at those opens.
- On a standard brick chart the next displayed open need not equal the prior close, so treating that open as the first fill misstates the path by one brick size.
- A modified-renko layout can place the next open at the prior close and add a one-sided wick, while session-gap rules still decide whether quoting-halt jumps stay visible.
The increment that must print
A new Renko column is drawn only after price moves beyond the previous brick's high or low by a preset increment. That increment is the brick-size, the fixed pip or tick step that has to be exceeded before the next column is added.
A renko-brick is a same-size price block drawn in a new column only after price clears the prior block by that set increment. Standard Renko construction uses price path rather than clock time and colors a brick by whether the completed increment continued upward or downward.
Displayed opens and virtual columns
When a move exceeds one brick size, extra bricks are inserted to fill the jump. Those extra columns are virtual-brick inserts. They span a jump larger than one brick size even when no trade printed at that open.
On a standard brick chart the next column's displayed open need not sit at the prior close. Treating that open as the first available fill misstates the path by one brick size. In the five-pip euro-dollar example, that displayed-open versus prior-close mismatch equals five pips.
Wicks, true opens, and gap fills
A modified-renko layout sets the next brick's open at the prior close and draws a wick only on the lower side of an up brick and only on the upper side of a down brick.
The wick-and-true-open layout is presented as a closer record of the move inside one brick. Gap-fill bricks still leave prices at the start of a gap unavailable as entries.
Session breaks and brick covering
A session-gap is a price discontinuity at a quoting halt that the brick rule may either leave visible or cover with virtual columns. Around-the-clock quoting reduces the gap-fill problem. Session-based series should keep session-break gaps visible instead of covering them with bricks.
One modified implementation treats a five-pip euro-dollar brick as 10 ticks of 0.00005 and can enable or disable session-break handling.
All readings on this track · 14 readings
- 2007Renko brick construction and breakout rules
- 2014Modified Renko brick size from tick inputs
- 2014Renko brick increment and open construction
- 2014Modified renko construction with RSI bands and a trend filter
- 2014Construction checklist for a brick-chart crossover and same-session breakout
- 2015Optimizing virtual bar size as a trend filter
- 2015Constructing Renko energy bands so support and resistance arrive as pre-marked leans
- 2018Five-rule entries and exits with Elliott waves and Renko bricks
- 2018Modified Renko charts as a filter for fake breakouts
- 2018V-Trade reversal, retrace, and continuation rules
- 2018A finished impulse, a Fibonacci target, and a reversing Renko brick as one test
- 2019Brick sampling changes what a volatility envelope can show
- 2019A consecutive Renko brick count as a mechanical entry-exit procedure
- 2019Renko brick scale as a falsifiable trend hypothesis