Oscilador estocástico: %K, %D y sobrecompra/sobreventa

How the stochastic differs from RSI

%K = 100 × (close − lowest_low) / (highest_high − lowest_low) over the lookback window. %D = 3-period SMA of %K.

Where RSI compares average gains to average losses, the stochastic compares the close to the absolute range. The stochastic moves more aggressively — it spends a lot of time at the extremes. The "slow" stochastic smooths %K with a 3-period MA before %D is computed, reducing this aggressiveness.

The 20/80 thresholds are equivalent to RSI's 30/70. Same interpretive caution applies: overbought is not "sell".

When stochastic adds value

In range-bound markets, the stochastic tends to call swing tops and bottoms cleaner than RSI does. In trending markets it gets stuck at extremes and becomes noise. The decision of which oscillator to trust often comes down to whether you think the asset is ranging or trending.

How Signodex uses the stochastic

Signodex computes the slow stochastic (14,3,3) on every chart. The AI references it alongside RSI when the two disagree ("RSI sits at 48 but slow stochastic is at 12 — both can't be right; the asset is in a tight range where the stochastic's range-bound bias matters more").