The 200-day average, in plain English
The definition, as the app uses it
The average price over ~200 trading days. When price is above it, the long-term drift is up; below, it's leaning down. A slow, steadying signal.
Two hundred trading days is roughly ten months of market days. Averaging across that long a stretch smooths out the daily noise — one bad week barely bends the line — so the line answers one narrow question well: which way has this been drifting, over the long term?
It is deliberately slow. It will not catch a turning point early, and it is not trying to. Its job is context: a drop that leaves the price still above its 200-day average is a dip inside a longer uptrend; a drop through the line is the trend itself changing character. Same red day, two very different meanings.
Worked example — illustrative figures only, not a real asset
A fund trades at an example price of $212, and its 200-day average is $205. The price sits above the line, so the long-term drift reads up. A rough week takes it to $207 — still above the line. The short-term move was real; the long-term read has not changed.
Related: The 50-day average (the faster line) · Support · RSI · The five-questions worksheet
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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.