A word of warning.
Climactic action does not necessarily mean imminent reversal. After one has studied price movement for a while, he sees that what may be viewed as climactic action or even a climax in real time may be only what is called "preliminary support". This is created by big money traders who enter the market at what they consider to be attractive prices but which are not necessarily bottom prices. Their anticipatory buying does not mean that they are wrong; it means only that they don't care: they have a different time horizon. And it is, after all, this buying that retards, eventually halts, and results in the eventual reversal, or at least the beginning of the bottoming process.
The SLA can be particularly useful here because it does not require guessing. No, one may not necessarily buy the bottom tick. But so what? There are also issues of safety that must be considered by the trader who wants to become financially independent. Professionals (those who support themselves with this) after all do not care about the top tick and the bottom tick; they are more than content with the substantial middle.
Using the past few days as an example, it is obvious even to anyone who's never seen a chart that the stride has changed trajectory:
Does this mean that we've reached the "bottom" (in this case, the median of the weekly trend channel, which is currently at or about 4350)? Maybe. Maybe not (traders sometimes reverse price in advance of reaching the median; sometimes they overshoot; that's the way an auction market works).
The ES showed the same climactic action a few days ago but then rallied 20+pts, the equivalence of 50pts in the NQ, which is a rally worth participating in:
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Therefore, if you're in, try to stay in, if your rules permit you to do so. If you're out, wait for the market to show its hand. Judge the market by its own action.
And be patient.