Price actionDouble Bottom Reversal
Two lows at the same level with the second showing an RSI higher-low, then a neckline break — the W-shaped bottom that signals a downtrend has run out of sellers.
Swing tradingIntermediate1h - daily
The idea
A double bottom is the classic reversal pattern that ends a downtrend: price falls to a support level, bounces, falls back to roughly the same level, and holds — carving a W — signaling that sellers tried twice to push lower and failed. The pattern says supply has been exhausted at that price, and confirmation comes when price breaks above the neckline, the high between the two lows, completing the reversal. Two tools sharpen it: support and resistance define the shared low and the neckline, and RSI often prints a higher low on the second bottom even as price matches the first, a momentum divergence revealing that selling pressure has faded. The setup is intermediate because it demands patience for the full pattern and confirmation rather than guessing the low. Traded well, it catches the turn of a trend near its bottom with a defined risk. Its failure mode is anticipating the pattern before the neckline actually breaks.
The setup
After a clear downtrend, watch price reach a support level and bounce, then decline again toward the same level — the second leg of a potential W. Mark the shared support and the neckline, the intervening swing high, as your key levels, and plot RSI beneath price. As the second low forms, look for RSI to make a higher low than it did on the first, the divergence that signals fading momentum. Ideally the double bottom rests on a major, higher-timeframe support shelf, which makes the reversal more significant. The two lows do not need to be identical, just close enough to read as a matched pair.
Entry
The high-confidence entry is the neckline break: buy when price closes above the neckline, ideally on rising volume, confirming the reversal is underway. A more aggressive entry is to buy the second low itself when a reversal candle and the RSI divergence appear at support, accepting more risk that the pattern fails in exchange for a better price and tighter stop. Many traders split the difference, taking a starter at the second-low bounce and adding on the neckline break. Whichever you choose, the divergence and the level are your qualifiers — a second low with no momentum improvement is weaker. Avoid buying in the middle of the pattern before either the low holds or the neckline breaks.
Exit and targets
The standard target is a measured move — take the pattern's height, from the double-bottom low to the neckline, and project it upward from the neckline break — which gives an objective first destination; bank partial profit there. Trail the remainder beneath each new higher-low as the fresh uptrend develops, letting a full trend reversal run. Watch that price holds above the neckline after the break; a fast drop back below it is a failed pattern and a reason to exit. On a swing horizon give the trade room over days. Always take enough at the measured-move target to de-risk the position in case the young trend stalls.
Risk management
The stop belongs below the second low, because a break of that low voids the double bottom and means sellers were not finished after all. Size the position so that distance is a small fixed fraction of the account. For a neckline-break entry the stop is wider, back below the pattern, but the confirmation is stronger; for a second-low entry the stop is tighter but the failure rate higher — pick the trade-off deliberately. The main risk is jumping in before confirmation and catching a pattern that never completes, so requiring the level, the divergence, and ideally the neckline break keeps failures contained. Never move the stop below the pattern low to give a failing setup more room.
Best timeframes and markets
Double bottoms are read on the 1-hour to daily charts, where the pattern has room to form cleanly and the reversal is meaningful; the daily produces the most reliable, most-watched patterns. They suit liquid stocks and ETFs where support levels are respected and volume confirms the neckline break. Higher timeframes give fewer but higher-quality patterns. The setup needs a genuine prior downtrend to reverse and works best when the double bottom sits on major support in an improving broader market. It is a swing method, not an intraday scalp.
Common mistakes and variations
The biggest mistake is anticipating the reversal and buying before the neckline breaks or the second low even holds, catching failed patterns. Variations include the triple bottom (three tests of support), requiring a volume surge on the neckline break, or demanding the RSI divergence as a non-negotiable filter. Some traders wait for a pullback to the broken neckline, now support, for a lower-risk second entry. The mirror pattern, the double top with a bearish RSI divergence, works identically for shorting the end of an uptrend. Each version depends on confirmation before commitment.
A worked example
A stock downtrends to support at 25, bounces to 28 (the neckline), then falls back to 25.2 and holds — a double bottom — while RSI prints a higher low, showing selling has eased. Price then closes above the 28 neckline on rising volume; you buy 28.3 with a stop at 24.8, below the second low, risking 3.5 per share. The pattern height is 3 points (28 minus 25), so you bank a third at the measured-move target of 31 and let the rest ride the new uptrend, trailing beneath each higher-low. Price grinds up to 38 over the following weeks before a higher-low finally breaks; you exit the remaining two-thirds near 37, blending into roughly a 2-to-1 winner off a well-confirmed reversal.