Envelope

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Envelope

In technical analysis, two moving averages of a security's price indicating its upper and lower limits. That is, a price tends not to move above the higher moving average or below the lower moving average. Analysts use envelopes to help them determine buy and sell signals. When a price reaches the higher moving average, analysts may declare a sell signal, while they may declare a buy signal when a price reaches the lower moving average.
References in periodicals archive ?
If you don't, you'll find yourself flying at the edge of the envelope with an unstable aircraft--and you will not have a soft landing!
Sometimes you just have to push the edge of the envelope, go for it, unleash the beast that lurks within and wear something or do something that says "I take no prisoners".
It's never far from your mind that these men were out there pushing the edge of the envelope and that some of them paid for it with their lives,'' Moore said.
The guy wasn't just state-of-the-art technically; he was pushing the edge of the envelope.

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