Murrey Math Lines: Do the 8/8 Levels Actually Hold?

Price stalled twice at the 4/8 line last week, so you marked it and waited for the third touch. Go back to that chart a month later and the line is somewhere else.

Murrey math lines are a grid of eight equally spaced levels drawn across a rounded price range, labelled 0/8 at the bottom through 8/8 at the top. They are not levels the market chose. They come out of arithmetic, and the grid can relocate when the window it measures from changes, which is the part most write-ups leave out.

So here is what the grid measures, which lines are worth keeping on the chart, and a twenty-minute audit that tells you whether your pair respects them or walks straight through.

What are Murrey Math lines?

They are horizontal levels that cut a price range into eight equal slices. The dividing points get fraction names: 0/8 at the bottom, 4/8 in the middle, 8/8 at the top, with extra lines drawn above and below for moves that escape the box.

Every platform version draws the same ladder. What differs is the range it measures and how that range gets rounded, and those two choices decide where every line on your chart ends up.

Read the ladder and one thing stands out: the gaps between lines are identical all the way up. Real support and resistance is never that evenly distributed.

Where does the grid come from?

From T. Henning Murrey, who set the system out in his 1995 book Murrey Math Trading System for All Markets. His starting point was W.D. Gann’s habit of splitting a move into eighths, which Murrey turned into a fixed grid that could be drawn mechanically instead of by eye.

The mechanical part is the interesting bit. The indicator finds the highest high and the lowest low over its lookback, then rounds that distance up to a standard size before dividing it. That rounding is why the lines tend to land on tidy values, and it is also why two traders using different lookbacks end up with two different charts of the same pair.

Do the lines move?

Yes, though not in the way an arrow indicator moves. The markers on your chart do not flip after the fact. The entire grid is recalculated, so the line you drew a trade from can sit at a different price tomorrow.

The two panels hold the same candles. A reaction that looked like proof of the 4/8 line in the left panel has no line under it in the right one, which is what a rounded range does when it jumps a size.

How do they compare with pivot points and Fibonacci?

All three give you levels before price gets there. They disagree about where the level should come from, and that disagreement is the whole argument.

None of these is a signal on its own. They are reference points, and a reference point is worth what the reaction to it is worth.

How do you test whether a line holds on your pair?

Count the touches. One session with the replay tool settles more than a month of forum opinion, and the method is the same one you would use on any level tool.

1. Load six months on your usual timeframe with the grid on, and no other indicators.
2. Mark every bar whose wick reached a line. Touch means touched, not near.
3. For each touch, log the line name and whether price turned there in a way you could have traded, with a stop somewhere sane.
4. For every touch that did hold, check what else was at that price: a prior swing high or low, a round number, a session level.
5. Add up the touches per fraction. If 4/8 has a dozen entries and 6/8 has two, you have learned which line to keep.

That fourth step is where the answer usually appears. Round numbers are not a superstition: Carol Osler’s study of real currency order books, published in The Journal of Finance in 2003 and available as a Federal Reserve Bank of New York working paper, found take-profit orders clustering at round numbers and stop-loss orders clustering just past them. When a murrey math line holds, it is often standing on top of one of those clusters.

Sorted this way, most grids thin out fast, and the handful of lines left standing are the ones with a second reason to be there.

What makes a level worth trading?

Evidence that someone defended it. A level earns its place when price has already been rejected from it, when it marks the edge of a range buyers and sellers argued over, or when it sits where orders are known to gather. Equal spacing gives you none of that.

This is the gap RelicusRoad Pro is built to close. Its Road Levels are derived from traded price, not from a division of a box, and they settle at the bar close and stay put, so the level you tested last week is the level you trade this week. The full breakdown of how Road Levels are built covers the logic; if you want a fixed-formula reference alongside them, the daily pivot points guide is the more widely watched option.

Keep the octave grid if the audit says your pair respects it. But let the audit decide that, rather than the fact that the lines look orderly.

Frequently asked questions

What are Murrey Math lines in trading? Murrey math lines are a set of horizontal support and resistance levels that cut a price range into eight equal parts. The lines are labelled as fractions, running from 0/8 at the bottom of the range to 8/8 at the top, with 4/8 sitting in the middle. The idea comes from T. Henning Murrey, who published it in 1995 as an attempt to turn W.D. Gann’s observations about eighths into a grid any trader could draw without Gann’s geometry. Most charting platforms ship a version of it, and every version draws the same ladder of fractions across whatever range it measures.

How are Murrey Math lines calculated? The indicator looks back over a fixed number of bars, finds the highest high and the lowest low in that window, then rounds that range up to a standard size from a fixed ladder of sizes. That rounded range is the octave. It gets divided into eight equal slices, and the dividing points become the lines from 0/8 to 8/8. Extra lines are usually drawn above and below the octave to cover moves that break out of it. The rounding step is what makes the grid land on tidy price values rather than on the exact high and low it measured.

Do Murrey Math lines repaint? The lines do not redraw historical signals the way an arrow indicator can, but they are not fixed either. The whole grid is recalculated from the highest high and lowest low in the lookback window. So when a new extreme prints, or an old one drops out of the window, the rounding can jump a size and every line moves with it. The chart you look at today shows today’s grid drawn over last month’s price, which is not the grid you would have been trading at the time. Bar replay settles it on your own chart, and our guide to non-repaint indicators explains what else to check for.

Which Murrey Math line matters most? In Murrey’s own description the 4/8 line is the main reference, because it sits in the middle of the octave and marks the balance point of the range, while 8/8 and 0/8 mark the edges that price has to work hardest to clear. The band between 3/8 and 5/8 is where he expected price to spend much of its time. Treat those labels as the system’s claims rather than as facts about your market. The useful version of the question is which line your pair has actually reacted to in the last few months, and that is something you can count.

Are Murrey Math lines better than pivot points? Neither is better in the abstract, and they answer different questions. Daily pivot points are calculated from a completed session’s high, low and close, so the level is fixed for the day and every trader watching that session sees the same number. A murrey math grid covers a longer range and re-rounds itself as that range changes, so it gives you structure across a bigger move but less agreement about where the line sits. If you want a level other people are also watching, the session pivot is the more crowded one.

Want levels that come from traded price and stay where you tested them? See how RelicusRoad Pro draws its Road Levels.

Written for RelicusRoad by RelicusDigital.com.