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Renko Charts: What Happens When You Remove Time From a Chart

A Renko chart draws a new brick only when price has moved a fixed distance. Nothing else puts a brick on the chart: not the clock, not volume, not news. Removing time makes trends beautifully clear and hides several things you need to know.

In one sentence:

Instead of one candle per time period, a Renko chart draws one brick every time price moves a set number of points, so a quiet hour produces nothing and a violent minute produces several bricks.

Renko Charts at a glance

DifficultyIntermediate: simple to read, easy to draw the wrong conclusions from
What makes a brickA price move of one full brick size beyond the last brick’s close. Nothing else
Reversal ruleMost implementations require two brick sizes of adverse movement before drawing an opposite brick
What is removedTime, intrabar highs and lows, gaps, and any alignment with session structure
Brick sizeThe single most important choice. It changes the chart completely and there is no correct value
MT5 availabilityMT5 has no native Renko chart type. You need a custom indicator that draws bricks in a subwindow, or an expert advisor or script that builds a Renko custom symbol you can then chart normally
Does it repaint?Fixed-size Renko does not once a brick is closed. ATR-based brick sizing does, when ATR changes, the whole chart is rebuilt and past bricks move
What kills itA brick size that no longer suits the volatility, and backtests that assume a brick equals a fill

What it is and why it works

On a normal chart, every candle represents a period of time. A one-hour candle exists because an hour passed, regardless of whether price moved a hundred points or two. Renko throws that away.

You choose a brick size: say 10 points. The chart then draws a new brick only when price has moved 10 points beyond the close of the last brick. If price moves 10 points up, an up brick is added. If it moves 10 points up again, another up brick. Each brick is identical in size, and bricks in the same direction sit diagonally above one another. To draw a brick in the opposite direction, most implementations require price to move two brick sizes against the last brick; a 10-point Renko needs a 20-point reversal before a down brick appears after an up brick.

The consequence is that time is gone from the horizontal axis. One brick might represent forty minutes of grinding and the next one four seconds during a news release. Ten bricks might cover a Tuesday afternoon, and then nothing appears for the whole of Wednesday because price stayed within range. The chart is a map of distance travelled, not of time elapsed.

What that buys you is real: noise disappears. A market oscillating within the brick size produces no bricks at all, so the chop that fills a normal chart is simply not drawn. Trends appear as long unbroken runs of one colour. For anyone whose main problem is being shaken out by minor wiggles, this is a genuinely different way of seeing the market.

What it costs you is equally real, and it is not usually stated plainly. You lose the ability to see how long anything took, which means you lose the distinction between a market that is grinding and one that is accelerating. You lose the highs and lows; a brick shows only that price travelled a fixed distance, not how far it poked beyond before coming back. You lose gaps, which are absorbed into a run of bricks as if price had traded through the whole range. And you lose the connection to session structure, because the bricks do not line up with the open, the close or the session boundaries that actually organise the trading day.

How to trade it, step by step

  1. Get Renko onto MT5, which takes a deliberate step. MetaTrader does not offer Renko as a chart type. Either install a custom indicator that draws bricks in a subwindow, or use an expert advisor or script that generates a Renko custom symbol; the second approach is better, because the resulting symbol can be charted, drawn on and analysed like any other.
  2. Choose the brick size from the instrument’s own behaviour, not from a round number. A sensible starting point is a fraction of the instrument’s typical daily range, large enough that ordinary intraday noise does not produce bricks, small enough that a normal trend leg produces several. Test a few sizes and look at how many bricks a typical day generates.
  3. Understand that changing the brick size produces a different market. This is not a cosmetic setting. Halve the brick size and trends that looked unbroken become choppy; double it and setups that filled your screen disappear entirely. Any rule you develop is valid only for the brick size you developed it on.
  4. Prefer a fixed brick size to an ATR-based one, and know why. ATR-based Renko sounds appealing because it adapts to volatility. The problem is that when the ATR value changes, the brick size changes, and the entire chart is recalculated from the beginning: historical bricks move. That makes the chart look excellent in hindsight and makes any test on it unreliable.
  5. Read the runs, because that is what the chart is for. A sequence of same-coloured bricks means price kept covering ground in one direction without a full two-brick reversal. That is the cleanest visual definition of a trend available, and it is genuinely easier to see here than on a candlestick chart.
  6. Take the reversal seriously, because it costs two bricks. By the time an opposite brick prints, price has already moved two brick sizes against the previous direction. That is your minimum lag on any reversal signal, and it must be built into your expectations and your stop placement rather than discovered afterwards.
  7. Keep a time-based chart open alongside it. Renko will not tell you that a release is due in ten minutes, that the London session is about to open, or that the last four bricks all printed in one violent minute. Use the Renko chart for structure and the time chart for context. Neither alone is sufficient.
  8. Place stops in price terms, not in bricks. “Two bricks” sounds like a stop but it is a distance that depends entirely on your settings, and a brick can be traversed in seconds during a news event. Convert to points, then size the position from that distance with the position size calculator.
  9. Be sceptical of any Renko backtest you did not build carefully. Testers that treat a brick as a tradeable event assume you could have transacted at the brick’s price the moment it printed. In fast conditions several bricks print at once, and the fill you would have received is not the one the test assumed.

Size every one of those entries with the position size calculator and check the trade is worth taking with the risk/reward calculator before you commit.

The conditions it needs

Filtering out chop for trend-following

The genuine strength. Price movement smaller than the brick size does not appear at all, so the minor oscillation that produces most false signals on a time chart is invisible. Traders whose main problem is over-trading noise find Renko helps directly, because the noise is simply not drawn.

Seeing trend structure at a glance

Because every brick is identical, a trend is literally a run of the same colour and its length is directly comparable to any other run. Judging whether the current move is large or small relative to previous ones is easier here than on a chart where each candle has a different size.

Instruments that trend persistently

Renko rewards markets that keep going and punishes markets that oscillate. Instruments with strong directional runs produce long clean brick sequences; instruments that spend their day rotating around a mean produce alternating single bricks that are worse than useless.

Managing a position rather than finding one

The two-brick reversal rule makes a reasonable mechanical exit: stay in while the bricks keep printing your way, exit when one prints against you. It is a clear, unambiguous rule that ignores the wiggles that shake people out of good trades, and it is arguably a better use of Renko than entry finding.

When it fails

Markets it is most informative on

For different levels of experience

If you are brand new

On a normal chart, a new candle appears because time passed. On a Renko chart, a new brick appears because price moved a certain amount. If price does not move that amount, nothing gets drawn; the chart just sits there, even if hours go by.

The upside is easy to see. All the small back-and-forth wiggling that clutters a normal chart disappears, because it never travels far enough to make a brick. Trends look like long neat staircases of one colour.

The downside is just as important. You can no longer tell how long anything took. Five bricks might be a whole quiet day or thirty seconds of a news release, and they look exactly the same. You also cannot see how far price spiked and came back within a brick, which matters when you are deciding where to put a stop.

So use Renko to see the shape of a trend, and keep an ordinary chart open next to it for everything else, what time it is, whether news is due, and what price actually did. And be aware MT5 has no built-in Renko: you will need to add a custom indicator or generate a Renko symbol.

If your results are inconsistent

The two things worth getting right are brick size and honest expectations about the reversal.

On brick size: it is not a preference, it is the whole strategy. A rule that works on 10-point bricks will not work on 20-point bricks, because the chart is genuinely a different chart. Choose the size from the instrument’s typical daily range, write it down, and treat any change as starting over rather than as tuning.

Resist ATR-based sizing despite how sensible it sounds. When the ATR changes, the brick size changes, and MetaTrader rebuilds the entire chart with the new size, so the bricks you see in your review are not the bricks you saw when you traded. Every ATR-Renko chart looks brilliant in hindsight for exactly this reason.

On the reversal: an opposite brick only prints after price has gone two brick sizes against you. That is your structural lag, and it is the price you pay for the noise filtering. It means Renko is naturally a trend-following tool with wide stops and cannot be turned into a fast reversal system by any amount of setting adjustment. If you want to fight that, you have chosen the wrong chart type rather than the wrong parameters.

If you are experienced

Renko is a price-space resampling of the underlying series: event-driven rather than clock-driven sampling. That has a real statistical justification: sampling at fixed price intervals produces returns that are far closer to independent and identically distributed than clock-time sampling does, because it naturally samples more often when volatility is high. Anyone who has fought heteroskedasticity in a time-bar model should recognise why this is attractive.

The cost is that the transformation is lossy and non-invertible in the dimensions that matter for execution. Duration is discarded, which removes any ability to model the time-dependence of volatility or to align with session and event structure. Intrabar excursion is discarded, so realised range and any excursion-based risk measure cannot be recovered. And because a brick is defined by a threshold crossing, the printed brick close is not a price at which a fill was necessarily available, in a fast move several thresholds are crossed within a single quote update, and the brick sequence implies a series of transactable prices that never existed.

That last point is where most Renko backtests break, and it is worth being explicit: a tester that fills each brick at its close is assuming liquidity at prices the market skipped. Combined with ATR-dependent brick sizing, which makes the historical brick sequence a function of data after the fact, you have both look-ahead and unavailable-fill bias in one construction. If you want the sampling benefit, keep the brick size fixed, generate the series as a custom symbol so it is reproducible, and validate every simulated fill against the underlying tick data rather than against the brick.

Risk management for this strategy

Renko’s specific risk is that it makes the market look calmer than it is. Uniform bricks and clean colour runs give an impression of orderliness that the underlying price action may not have had at all, and orderly-looking charts encourage larger positions.

Two practical consequences. First, always convert brick counts into points before sizing. A stop of “two bricks” means nothing until you know what a brick is worth on this instrument at this setting, and it can be a very large distance. Second, remember that the chart is hiding the wicks; the price spikes that reach stops without changing the brick sequence at all. A stop placed at a level the Renko chart suggests was never tested may well have been traded through repeatedly.

The largest risk is around scheduled news. A release can print several bricks in seconds, and a trader whose plan was “exit on the first opposite brick” will find that exit arriving two brick sizes late at a price that was never available. Flat through major releases is the sensible default on any Renko approach, and it matters more here than on a time-based chart.

Where Market Structure Pro fits

Renko solves one problem extremely well, it removes noise from the picture, and creates two in the process: you no longer know how long anything took, and you no longer know what conditions you are trading in.

Market Structure Pro is built on the opposite premise, which is why the two complement each other rather than compete. It is session-aware and spread-aware, so it grades a setup against the actual conditions at that moment: which session is running, whether the spread is behaving, whether liquidity is genuine. Those are precisely the pieces of context a Renko chart deletes. A brick sequence during the London–New York overlap and an identical sequence during the Asian session are indistinguishable on the chart and are not remotely the same trade.

Its chop filter also addresses the brick-size problem from a different direction. When volatility falls and your brick size is now too large, the Renko chart goes quiet and tells you nothing; when volatility rises and the brick size is too small, it produces alternating single bricks that look like signals. MSP’s ranging filter identifies directionless conditions directly and returns NO TRADE, independently of any brick setting you happen to have chosen.

And because MSP’s verdict locks on the closed bar and does not repaint, it gives you a stable record in a place where Renko charts, particularly ATR-sized ones, can silently rewrite themselves. It is decision support rather than a signal service, but it is decision support that stays put.

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Frequently asked questions

What is a Renko chart?

It is a chart made of equally sized bricks, where a new brick is drawn only when price has moved a set distance beyond the previous brick's close. Time plays no part in it, so a brick might represent several hours of quiet trading or a few seconds of a violent move, and the two are indistinguishable.

What does removing time from a chart actually hide?

It hides how long each move took, which means you cannot tell a slow grind from a sudden repricing. It also hides intrabar highs and lows, so you cannot see how far price spiked before coming back, and it hides gaps, drawing them as a run of bricks as though price had traded continuously through the range.

How do I choose the right Renko brick size?

There is no correct value, only one that suits the instrument's current volatility. A reasonable starting method is to base it on a fraction of the typical daily range, large enough that ordinary noise produces no bricks but small enough that a normal trend leg produces several. Changing the size produces a genuinely different chart.

Does MetaTrader 5 have Renko charts?

Not natively. MT5 offers bars, candlesticks and line charts only. To use Renko you need either a custom indicator that draws bricks in a subwindow, or an expert advisor or script that generates a Renko custom symbol which you can then chart and analyse like any other instrument.

Do Renko charts repaint?

A fixed brick size does not repaint: once a brick is closed it stays where it is. ATR-based brick sizing does effectively repaint, because when the ATR value changes the brick size changes and the entire chart is rebuilt from the start, moving historical bricks. That makes backtests on ATR Renko unreliable.

Are Renko charts good for beginners?

They can help with one specific problem, which is being shaken out by minor noise, because movement smaller than the brick size is never drawn. But they remove context a beginner needs, particularly time and session structure, so they are best used alongside a normal chart rather than instead of one.

Why do Renko backtests look better than live results?

Mainly because a tester usually assumes you could transact at each brick's price the moment it printed. In fast markets several bricks print from a single move and those prices were never available. If ATR-based sizing is also being used, the historical bricks themselves depend on later data, compounding the problem.

What is the reversal rule on a Renko chart?

Most implementations require price to move two full brick sizes against the current direction before an opposite brick is drawn. That is what filters out the noise, and it also means every reversal signal arrives only after price has already travelled two bricks against you, which has to be built into stop placement.

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