Why are the Ichimoku settings 9, 26, and 52?

They come from the Japanese trading calendar of Hosoda's era, when markets traded six-day weeks: 26 approximated one month of sessions, 9 about a week and a half, and 52 two months. Some traders adapt them for 24/7 markets like crypto, but there is no consensus that alternatives improve results, and defaults keep readings comparable across charts.

Does the Ichimoku cloud work in ranging markets?

Poorly, and by design it tells you so: thin, frequently twisting clouds and flat Kijun segments are the system's own ranging signature. In those conditions cloud breakouts whipsaw, so many Ichimoku traders either stand aside or fade extension back toward a flat Kijun rather than trade breaks.

Is the cloud guaranteed support or resistance?

No. The kumo is prior equilibrium projected forward, so it is a zone where reactions are plausible, not promised. Thick clouds represent more accumulated two-way trade and tend to be harder to cross cleanly than thin ones, but any span can fail outright on strong momentum.

Does the Chikou span repaint?

Its newest segment moves, because it is the latest close plotted 26 bars back, so historical charts make Chikou confirmations look cleaner than they appeared live. The projected cloud behaves the opposite way: once its source bars close, the spans sitting ahead of price are fixed.

Can I use only part of the Ichimoku System?

Yes, and many do: Kijun-only trailing, cloud-only regime filters, and TK crosses without the rest are all common. Hosoda designed the five lines to confirm one another, so a subset trades away that built-in confirmation. That is a legitimate choice provided the subset is tested as its own method.

Ichimoku System

The Ichimoku System (Ichimoku Kinko Hyo, roughly 'one-glance equilibrium chart') is a complete charting method developed by the Japanese journalist Goichi Hosoda and published in 1969 after decades of refinement. Ichimoku System, also known as Tenkan-sen, Kijun-sen, Senkou Span A/B, Kumo/cloud, is a Trend concept. The Library holds 2 implementations, each one ready to run on Vela.

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Ichimoku Theories

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What is the Ichimoku System?

The Ichimoku System (Ichimoku Kinko Hyo, roughly 'one-glance equilibrium chart') is a complete charting method developed by the Japanese journalist Goichi Hosoda and published in 1969 after decades of refinement. It plots five lines built from range midpoints rather than closing-price averages: Tenkan-sen, the midpoint of the last 9 periods' high-low range; Kijun-sen, the 26-period midpoint; Senkou Span A, the average of those two projected 26 periods forward; Senkou Span B, the 52-period midpoint projected the same way; and the Chikou span, the close plotted 26 periods back. The area between the Senkou spans is shaded as the kumo, the cloud.

The midpoint basis is what separates Ichimoku from a moving-average stack. A midpoint moves only when the extremes of its lookback window change, so flat Tenkan or Kijun segments mark genuine equilibrium that price tends to gravitate back toward. Projecting the spans forward turns past equilibrium into a visible future zone, and shifting the close backward asks a blunt question: has current price cleared where the market traded 26 bars ago?

The system matters because it packages trend direction, momentum, support and resistance, and a confirmation check into one overlay with a shared vocabulary: TK cross, kumo breakout, kumo twist. It is one of the few widely used frameworks that is genuinely a system rather than an indicator, and its parts are routinely borrowed piecemeal, the Kijun-sen in particular serving as standalone dynamic support and resistance.

How to read the Ichimoku System

Ichimoku is read in layers, from the regime backdrop down to the trigger.

1Locate price relative to the cloud: above the kumo is a bullish regime, below is bearish, inside is transition. Cloud thickness proxies how much prior equilibrium must be absorbed for the regime to change.
2Check the short-term order: Tenkan above Kijun is bullish momentum, below is bearish. TK crosses are graded by location, strongest when they fire on the regime's side of the cloud and weakest when they fire against it.
3Look at the projected cloud ahead of price: its color (Senkou A above or below B) shows the developing bias, and a twist, where the spans cross, marks where the backdrop is set to flip.
4Confirm with the Chikou span: for longs, the lagging span sitting clear above the candles 26 bars back means current price has escaped that congestion; a Chikou tangled in old price warns the path is contested.

How it's calculated

Ichimoku combines five lines built mainly from period midpoints (the average of the highest high and lowest low over a window), with two spans projected forward to form the cloud.

\operatorname{Tenkan}_t = \frac{\operatorname{HH}_9 + \operatorname{LL}_9}{2}

\operatorname{Kijun}_t = \frac{\operatorname{HH}_{26} + \operatorname{LL}_{26}}{2}

\operatorname{SenkouA}_{t+26} = \frac{\operatorname{Tenkan}_t + \operatorname{Kijun}_t}{2}

\operatorname{SenkouB}_{t+26} = \frac{\operatorname{HH}_{52} + \operatorname{LL}_{52}}{2}

\operatorname{Chikou}_{t-26} = C_t

\operatorname{Kumo} = \text{the area between SenkouA and SenkouB}

HH_n: highest H over the last n bars, current bar included

LL_n: lowest L over the last n bars, current bar included

n: midpoint lookback in the HH_n / LL_n subscript (9, 26, or 52)

H: bar high

L: bar low

C_t: close of bar t

Tenkan_t: conversion line (default 9)

Kijun_t: base line (default 26)

SenkouA: leading span A, plotted 26 bars ahead

SenkouB: leading span B (default 52), plotted 26 bars ahead

Chikou: lagging span, the close plotted 26 bars back

Kumo: the cloud, the shaded region between the two leading spans

t: bar index; t+26 means 26 bars into the future, t-26 means 26 bars into the past

Hosoda's defaults are 9, 26, 52 with a 26-bar displacement; some platforms offset plots by 25 bars so the current bar counts as the first of the 26.

Price above the Kumo is conventionally read as an uptrend and below as a downtrend, with the relative order of the spans setting the cloud color.

How traders use it

As a regime filter: entries come from faster tools but are taken only in the direction of price versus the cloud, effectively using Ichimoku as a higher-timeframe trend filter even on a single chart.
As an entry engine: graded TK crosses, kumo breakouts, and Kijun bounces form a codified rule set, covered separately under Ichimoku Signals.
As a mean-reversion anchor: stretched distance from the Kijun-sen is commonly faded back toward it, and pullbacks to a rising Kijun are a standard trend-continuation entry.
As forward support and resistance: because the cloud is projected, its edges exist before price arrives, giving pre-drawn levels for targets, stops placed behind the far span, and timing windows around twists.

Ichimoku System vs related tools

Ichimoku Signals: This page covers the chart itself: the five lines and how to read them together. Ichimoku Signals covers the discrete, graded entry rules (TK cross, kumo break, Chikou confirmation) built on top of the chart.

Donchian Channels: Both are built from highest-high and lowest-low lookbacks. Donchian plots the envelope extremes themselves; Ichimoku plots the midpoints of those ranges and projects the two Senkou spans forward in time.

Moving Average Crossovers: A TK cross looks like an MA cross, but the lines are range midpoints, so they flatten at equilibrium instead of drifting, and the cross is graded by its position relative to the cloud rather than taken at face value.

Supertrend: Both supply an always-on regime read. Supertrend is a single ATR-offset flip line, while the Ichimoku cloud is a projected equilibrium zone with thickness, color, and a separate confirmation span.

Ichimoku System FAQ

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