Support & Resistance

Why Levels Form

Support and resistance describe price zones, not exact ticks, where buyers or sellers have repeatedly stepped in. A handful of mechanisms produce them. Anchoring pulls traders toward memorable reference points — a prior swing high, a round number like $100, the price a large cohort entered near — so the same crowd tends to react at the same price again. Order clustering reinforces this: resting limit orders concentrate at round numbers and prior extremes because that is where participants naturally place them, creating a real supply/demand shelf rather than a purely psychological one. Moving averages add a rolling version of the same idea — a 50-day or 200-day average often acts as dynamic support or resistance because trend-following capital references it mechanically. None of these mechanisms guarantee a level holds; they explain why price tends to pause, stall, or reverse at specific zones rather than moving in a straight line.

Confluence: When Levels Agree

A single support or resistance line drawn off one swing point is a hypothesis. Confluence is what happens when several independently derived levels — a prior high, a Fibonacci retracement ratio, a round number, a moving average — land in the same narrow price band. Each method arrives at the level through a different logic, so agreement between them is a stronger signal than any one method alone, the way multiple independent accounts of the same event carry more weight than a single account. Confluence zones are where reversals, stalls, and breakout attempts most often cluster, precisely because more of the market's structural attention is fixed on that price. The reverse also holds: an isolated round number with no prior price memory, no moving average nearby, and no Fibonacci confluence deserves less weight than the chart alone might suggest.

How Closelook Uses It

Closelook's scanner runs a support-confluence engine nightly across the tracked universe, scoring how many independent levels agree at each candidate zone rather than flagging any single line as significant on its own. This is decision-support, not decision-making: a confluence score describes how much independent evidence stacks at a price, not a guarantee the zone holds or a signal to act. A level that fails its invalidation test — price closing decisively through a zone that previously held — is treated as broken, not as a buying opportunity on the way down. The scanner surfaces confluence density across the universe each evening so a reader can see which names are approaching a well-corroborated zone and which are testing an isolated line with no supporting structure behind it.