As you can see, the NYSE spent the past 35 years in a rising trend channel marked by each (A). And more recently, price reached the top of that channel (resistance) and began to turn lower. See also Momentum with GOP...
But this area turned out to be more than just channel resistance
its a major 1.618 applied Fibonacci extension level as well (when using 2016 lows and 2020 highs). And as the NYSE price hit this 1.618 Fibonacci level, the MACD (momentum) indicator hit some of its loftiest readings on record
and began to turn lower.
So with price and momentum turning lower from the top of a 35-year channel, its probably wise for investors to stay tuned!