Portfolio Sweepwatch & learn · not investment advice

Support, in plain English

The definition, as the app uses it

A price level something keeps bouncing off. Falling below one it had been holding is "breaking support" — worth a look, not a panic.

Watch a price long enough and some levels start to look like floors: the price sinks toward the same area, then turns back up — once, twice, three times. That floor is support. It exists because buyers have repeatedly decided, at roughly that price, that the asset was worth stepping in for.

When the price finally falls through a floor it had been respecting, that is "breaking support." It does not say where the price goes next — it says the old floor stopped working, so the picture has changed and the other readings (the trend lines, the momentum, the market context) deserve a fresh look. In the app's vocabulary, that is exactly what a 50-day average acts as: a moving floor the price has been holding, until it doesn't.

Worked example — illustrative figures only, not a real asset

A stock dips to an example $40 in March, again in May, and again in July — and bounces each time. In September it closes at an example $37. The fall itself is unremarkable in size; what changed is that the $40 floor, respected three times, gave way. That is the event the phrase describes.

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Last reviewed: November 8, 2026

Portfolio Sweep never gives buy or sell calls. It describes what prices are doing — trend, momentum, how it compares to the market — so you can learn and decide for yourself. You don't trade inside Portfolio Sweep. This page is education, not investment advice.