How is the standard Moving Average Convergence Divergence (MACD) indicator constructed, and what market condition is signaled when the stock price makes a higher high while the MACD line forms a lower high?

[ A ]MACD is the ratio of employee headcount to corporate cash; this condition signals guaranteed 100% daily profit.

[ B ]Price making a higher high while MACD makes a lower high is a 'Bullish Confirmation' indicating infinite price expansion.

[ C ]MACD measures only agricultural rainfall and has zero relationship to stock momentum.

[ D ]Fast MACD line is the difference between 12 EMA and 26 EMA, with a 9 EMA signal line; price making a higher high while MACD makes a lower high is a 'Bearish Divergence', signaling fading upward momentum and potential trend reversal.[ CORRECT ]

Takeaway

Option D is correct: Fast MACD line is the difference between 12 EMA and 26 EMA, with a 9 EMA signal line; price making a higher high while MACD makes a lower high is a 'Bearish Divergence', signaling fading upward momentum and potential trend reversal.

Derivation

MACD (developed by Gerald Appel) is a trend-following momentum oscillator: (1) Construction: Default Fast MACD Line = 12-period EMA - 26-period EMA. Slow Signal Line = 9-period EMA of the MACD Line. MACD Histogram = MACD Line - Signal Line. (2) Crossovers: A buy signal occurs when the fast MACD line crosses above the slow signal line (especially below the zero baseline). (3) Divergence Analysis: When price reaches a new higher swing high, but the MACD line fails to make a new high and instead forms a lower high, a 'Bearish (Negative) Divergence' occurs. This warns that underlying buying momentum is deteriorating, signaling an impending correction. This tests MACD mechanics. The common error is mislabeling bearish divergence as bullish.

Why the others fail

A — MACD is the ratio of employee headcount to corporate cash; this condition signals guaranteed 100% daily profit.

MACD is a technical price-momentum oscillator derived from EMAs, having no connection to corporate employee counts.

B — Price making a higher high while MACD makes a lower high is a 'Bullish Confirmation' indicating infinite price expansion.

A lower high on MACD while price makes a higher high indicates momentum divergence (exhaustion), not bullish continuation.

C — MACD measures only agricultural rainfall and has zero relationship to stock momentum.

MACD is an equity and financial market technical indicator, completely unrelated to meteorological rainfall statistics.