WhitmanTrading

SMA vs Ichimoku

The simple moving average is one line: the mean close over a fixed window, with one setting. Ichimoku is a five-component framework, and its kijun-sen covers the same 26 sessions as a 26-day average but takes the midpoint of the highest high and lowest low instead of averaging closes.

This is the one comparison in the moving-average family where the two sides are not the same kind of object. One is a single number; the other is a framework. But inside the framework sits a line that covers exactly the same window as a 26-session simple average, and setting those two side by side shows what the framework’s choice of input does.

What each one is

The simple moving average is the mean close over a fixed window, drawn as one line with one setting. The simple moving average covers it.

Ichimoku draws five things at once. StockCharts traces it to Goichi Hosoda’s 1969 book: a 9-session and a 26-session line, two cloud boundaries (the slower one a 52-session midpoint) shifted 26 sessions forward, and the close shifted 26 sessions back. Ichimoku covers each component.

Kijun-sen is the framework’s base line. It is (26-session highest high + 26-session lowest low) ÷ 2, a midpoint of a range rather than an average of closes. Kijun-sen covers it.

Where they differ

What each line is built from. Twenty-six closes, every one weighted equally, against two prices: the highest high and the lowest low in the same 26 sessions.

When each one moves. The average changes whenever the close entering the window differs from the close leaving it, which is nearly every session. Kijun moves only on the day a new extreme enters the window or the old one drops out of it.

Level against zone. A moving average gives one price. The cloud gives a band with a top and a bottom, so “above the cloud” has a middle state where price is inside it.

Backward against forward. Every moving average is plotted at the bar it was computed on. Ichimoku shifts its cloud 26 sessions ahead, so today’s chart already shows where the band will sit.

Where the average and kijun agree

Most of the time, on the same side. On SPY, price closed on the same side of both 26-session lines on 7,778 of the sessions measured. Both are built from finished bars, both go sideways in a range, and the standard settings of each are watched by many people.

Which one to use: SMA or Ichimoku?

Run the simple average when you want a level that responds to every close. For a context read, is price above or below the level everybody watches, one line is the right amount of tool.

Run Ichimoku when you will use the whole framework, and especially the middle state: price inside the cloud is the framework saying there is no trend.

Run kijun when you want a line that ignores closes inside the old range. It holds still through a pause and moves when the range itself changes, which some traders want from a trailing reference.

And when you are new, start with the average. It teaches lag in one line; Ichimoku contains the same lesson five times over.

Why a flat kijun is not a flat market

A midpoint holds as long as its two extremes hold. Price can rally and fall inside the 26-session range for days, and kijun prints the same value each day.

It then moves in steps. When the old high or low leaves the window, kijun jumps to a new midpoint in one session. On a chart that reads as a staircase where the average draws a curve.

A worked example: 30 July 2026

The window. The 26 sessions from 24 June to 30 July 2026. SPY’s highest high in them was $755.58 on 15 July and its lowest low $716.58 on 26 June. Kijun = ($755.58 + $716.58) ÷ 2 = $736.08, the same value it had printed since 23 July.

The average. The mean of the same 26 closes was $743.91.

The split. SPY closed at $741.69: above kijun by $5.61, below the 26-session average by $2.22. One line said price was above its base; the other said it was below its average. Nothing about the market was contradictory. The midpoint was held down by one deep low in late June, while the average weighted every close equally.

The original data

What was measured. SPY daily bars from Yahoo Finance, highs, lows and closes as traded, every session from 3 January 1994 to 2 October 2026, 8,243 in all. Kijun per StockCharts, current session included; the simple average of the same 26 closes. “Above” means a close strictly above the line; the six closes exactly on a line count as at or below.

How often each line sat still. Kijun was exactly unchanged from the session before on 4,566 sessions, 55.39%. The 26-session average was unchanged on 6. The longest stretch of one kijun value was 26 sessions, 29 August to 4 October 2005.

Which side price was on. Close above both lines: 5,267 sessions (63.90%). At or below both: 2,511 (30.46%). Split between them: 465 (5.64%), of which 411 were above kijun but at or below the average and 54 the other way round.

Horizontal bars of where SPY closed against its 26-session kijun and 26-session simple average, 1994 to 2026: above both 63.90%, at or below both 30.46%, split 5.64%.
SPY daily closes against the 26-session kijun-sen and the 26-session simple average, January 1994 to October 2026. Source: Yahoo Finance, SPY daily bars (m70-spy-sma26-vs-kijun-daily-1994-2026.csv).

How long the splits lasted. The 465 split sessions fell into 340 separate stretches, with a median of one session and a longest of eight. Price changed sides of kijun 809 times and of the average 829 times, so the two lines produced almost the same number of crossings.

How far apart the lines sat. The median gap between kijun and the 26-session average was 0.42% of the close, and a tenth of sessions had a gap above 1.33%. Every session’s two lines and the side price closed on are in the SPY kijun and SMA file.

When it fails

The characteristic failure is treating five components as five confirmations. They share their inputs: all come from the same highs and lows over overlapping windows. Four of them agreeing is one measurement drawn four ways, the same error as calling a second moving average of a different length confirmation.

A second failure is reading a flat kijun as a quiet market. It only means the range’s extremes have not changed.

A third is trading the cloud’s middle state. Price inside the band is the framework declining to answer.

A fourth is placing a stop at the cloud edge. Its thickness comes from past highs and lows, not from where a trade is wrong.

And a fifth is abandoning the average because Ichimoku looks more sophisticated. On SPY the two 26-session lines disagreed on about one session in eighteen.

The simple moving average covers the single line and what its length controls. Ichimoku covers the five components. And kijun-sen covers the 26-session midpoint compared here.

The practical check

If a line sits flat, ask why. A flat 26-session average means closes have truly gone nowhere for five weeks; a flat kijun only means no new high or low has entered or left the window. Read a flat kijun as a range boundary midpoint, not as a market that has stopped.

— Michael Whitman

This page is educational, not financial advice. Test every idea on your own charts before risking money.