Retrieve CMO (Chande Momentum Oscillator)

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The Chande Momentum Oscillator (CMO) is a technical momentum indicator developed by Tushar Chande. https://www.investopedia.com/terms/c/chandemomentumoscillator.asp

CMO = 100 * ((sH - sL) / (sH + sL))

where:

• sH=the sum of higher closes over N periods
• sL=the sum of lower closes of N periods