RSI Failure Swings: Wilder's Original Reversal Signal
A reversal pattern read entirely from RSI — no price comparison required. Here is how top and bottom failure swings work.
A signal that lives entirely on the RSI line
A failure swing is a reversal pattern that J. Welles Wilder described when he introduced RSI in 1978. Unlike divergence, it does not compare RSI to price at all — it is read purely from the shape of the RSI line itself. That makes it objective and easy to define.
Bottom failure swing (bullish)
A bottom failure swing signals a potential turn up and unfolds in four steps:
- RSI falls below 30 (into oversold).
- RSI bounces back above 30.
- RSI pulls back but holds above its prior low — it does not return below 30.
- RSI breaks above the peak of that first bounce, confirming the swing.
Top failure swing (bearish)
The top failure swing is the mirror image:
- RSI rises above 70 (into overbought).
- RSI drops back below 70.
- RSI rallies again but fails to exceed its prior high.
- RSI breaks below the trough between the two highs, confirming the swing.
Failure swing versus divergence
Divergence requires you to compare RSI against price and judge whether they disagree. A failure swing needs only the RSI line, which removes the subjectivity of lining up swing points on two different series. Many traders find failure swings cleaner to trade because the confirmation — the break of the intermediate level — is unambiguous.
How reliable they are
Failure swings are most trustworthy when they form at a logical price level, such as a support or resistance zone, and when the higher-timeframe trend agrees. Taken in isolation against a strong trend, they fail like any other counter-trend signal. On RSI Monitor, watch for a failure swing that lines up with an oversold or overbought alert and a structural level for the strongest setups.