What is 'Senkou Span A'

Senkou Span A is one of five components constructed in an Ichimoku Kinko Hyo indicator. Senkou Span A is a line used to measure momentum and provide for signals showing support and resistance levels. It works in conjunction with the Senkou Span B line to form a cloud formation known as a kumo.


The Senkou Span A line and Senkou Span B line are used together to form the cloud formation in an Ichimoku Kinko Hyo diagram. The Ichimoku Kinko Hyo diagram originated from Japan. It is a popular diagram for chartists because it offers multiple insights in one chart through five chart components. In addition to the cloud pattern formed from the Senkou Span A line and the Senkou Span B line, the Ichimoku Kinko Hyo also includes three other components: the Tenkan-Sen, the Kijun-Sen and the Chikou Span.


The Senkou Span A line and Senkou Span B line create a cloud formation which is typically designated by a shaded area on an Ichimoku Kinko Hyo diagram. The cloud is charted 26 days ahead of the daily candlestick pattern to provide a forward-looking indicator for bullish and bearish signals.

The calculation for the Senkou Span A line integrates the Tankan-Sen and Kijun-Sen, two of the other chart components on the Ichimoku Kinko Hyo diagram. The Senkou Span A line is plotted 26 days ahead and calculated using the following equation:

Senkou Span A = (Tenkan-Sen + Kijun-Sen) / 2

The Senkou Span A line takes into consideration the highs and lows over a nine-day period while the Kijun-Sen considers highs and lows over a 26-day period. Senkou Span B is less complicated in its calculation simply considering the highest high and lowest low over a 52-day period.

Senkou Span B = (Highest High – Lowest Low) / 2

The Senkou Span B line is considered to be the slower of the two cloud lines as it considers 52 days. Generally, when the Senkou Span B takes the top position in the cloud it is considered a bearish signal. Adversely, when the Senkou Span A lines takes the top position in the cloud it is considered a bullish signal. These indicators are also commonly used to predict the reversal of a current trend which can be signaled when the two Senkou Span lines cross over each other.

Source: FXStreet

Other Ichimoku Kinko Hyo Indicators

The Ichimoku Kinko Hyo diagram also includes three other components: the Tenkan-Sen, the Kijun-Sen and the Chikou Span. Calculations for these components are noted below.

Tenkan-Sen: This line is calculated by using the following formula from a period of nine days:

Tenkan-Sen = (Highest High + Lowest Low) / 2

Kijun-Sen: Utilizes the following formula from a 26-day period:

Kijun-Sen = (Highest High + Lowest Low) / 2

Chikou Span: Trendline showing the closing price for the past 26 days.

  1. Tenkan-Sen

    The tenkan-sen is a line measuring short-term price moment that ...
  2. Chikou Span

    A component of the Ichimoku Kinko Hyo indicator that is created ...
  3. SPAN Margin

    SPAN margin is a system that determines margin requirements according ...
  4. Cloud Security

    Cloud security is the protection of data stored online from theft, ...
  5. Bottom

    A bottom is the lowest price reached by a financial security, ...
  6. Cloud Computing

    Cloud computing is a model for delivering information technology ...
Related Articles
  1. Trading

    Introducing Ichimoku Charts in Forex Trading

    Discover how the high-flying application of Ichimoku charts can be used in forex trading.
  2. Trading

    Most Commonly Used Forex Chart Patterns

    Greatly improve your forex trading by learning these commonly used forex chart patterns that provide entries, stops and profit targets.
  3. Investing

    VMware Cries Uncle, Joins Amazon Cloud (VMW, AMZN)

    The technology infrastructure giant will run its Cloud Foundation on Amazon Web Services public cloud servers.
  4. Investing

    Amazon, Microsoft Still Rule Cloud; Oracle, Alibaba May Catch Up

    There are new players in the cloud computing industry.
  5. Investing

    Amazon Leads Cloud Infrastructure Market: Canalys

    Amazon's market share is more than the next three players combined, but new players and price cuts may affect the market.
  6. Investing

    US Complains About China Cloud Restrictions

    U.S. lawmakers sent a letter to the Chinese ambassador complaining about restrictions on foreign cloud computing players.
  7. Investing

    Microsoft Is a Cash-Flow Story: Credit Suisse

    Microsoft's prospects in cloud computing is morphing it into a cash flow growth story says CS.
  8. Investing

    Apple Confirms It Uses Google's Cloud for iCloud

    Google's cloud wins business from market leaders Amazon and Microsoft.
  9. Investing

    Microsoft’s Secret Weapon: Cloud Division (MSFT)

    As the global tech pioneer's hybrid cloud offerings lead to another quarter of double digit growth, a wave of new competitors stand to challenge Azure.
  10. Investing

    What Oracle’s Aggressive Cloud Initiative Means (ORCL)

    Oracle threatens Amazon's cloud dominance, while joining a wave of old guard tech companies restructuring to find their niche in the booming cloud space.
  1. Which consumer goods do Americans buy the most of?

    Explore the various factors that influence estimations of a tangible asset's useful life, as well as standard estimations ... Read Answer >>
  2. What's the difference between bottom-line and top-line growth?

    Both the top line and bottom line are critical to investors when analyzing a company's revenues, net income, and expense ... Read Answer >>
Trading Center