STEP 2 OF 53 min

Understand buy and sell ranges

Oscillation analysis applies to range-bound phases, not sustained upward or downward trends.

Three things to remember

Not live pricesWe show daily closes. Check the Prices as of date.

Ranges have limitsBased on historical data, for range-bound phases only. Historical ranges are not current signals.

Decide independentlyAI and scores do not guarantee returns. Verify quotes with your broker before trading.

HANDS-ON PRACTICEFictional sample · For learning

Move your mouse. Explore your next step.

The ranges stay fixed. Move your mouse left or right over either price bar without holding a button to update the price and suggested action. Blue marks the buy range; red marks the sell range. On mobile, slide the control; on a keyboard, use arrow keys.

$100

Buy reference$90–95Blue zone · Watch for an entryBetween ranges · WAIT$96–104Gray zone · No reference triggeredSell reference$105–110Red zone · Watch for taking profit

Current price

Suggested action: Wait

Suggested buy range: $90–95Suggested sell range: $105–110

What does entering the buy reference range mean?The price has a floor, so buying cannot lose moneyIt meets this analysis range; I still need to check dates and riskThe app has placed a buy order for me

Which phase suits this oscillation-range strategy?Identified as range-bound, with recurring price swingsA sustained downtrend, as long as the price looks cheapA sustained uptrend, using the old sell range

Explore the stock workspace

APPLY IT IN THE WORKSPACE

Start with a free starter stock

First check whether the strategy is active and the stock is range-bound, then compare the close with reference ranges. Non-range-bound historical ranges are for research, not sustained trends.

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Understand the principles

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A range is an interval

This website uses historical market data and in-house algorithms to calculate buy and sell reference ranges, with AI analysis to help interpret information. Closing prices are historical facts; ranges are estimates of future opportunities. Estimates can succeed or fail. Changing markets, unexpected news and limited historical samples can invalidate them. A range is not a guaranteed floor or ceiling, or a broker order. Do not blindly trust algorithms or AI.

Confirm a range-bound phase first

This website's oscillation analysis looks for relatively favorable entry and exit opportunities within recurring historical price swings. The idea is to consider buying near the lower range and selling near the upper range during a range-bound phase, not to trade mechanically in every market. Seeking a relative advantage is not a validated win-rate promise. This strategy applies only to stocks identified as range-bound, not stocks in sustained downward or upward trends. In a downtrend, a low price can keep falling; in an uptrend, prices can keep breaking above an old sell range.

Check two clocks

The market-data date and the strategy update time answer different questions. One dates the price; the other dates the analysis. A newer price can be compared with older analysis, so review both before using a range. News, a changed business outlook, or a changed market can make an earlier analysis less useful.

Missing analysis is a valid state

Before using a range, check whether the strategy is active and whether the website indicates a non-range-bound phase or no active buy or sell signal. Historical reference ranges may remain visible outside a range-bound phase, but they are for historical research, not triggered trading signals. Available quotes do not establish strategy suitability, and absent ranges are not zero, an implied WAIT or permission to trade. Reassess when a stock shifts from oscillation into a sustained trend instead of continuing to trade old boundaries.

Examples explain the product and decision process. Ranges and scores do not guarantee returns. Consider quote dates, analysis dates and your own risk.