The chipmaker's 14-day RSI reached 86.4 on Wednesday, its highest since November 2017, after shares surged 88% in a month and rose again in premarket trading.
An RSI above 70 is widely seen as overbought, suggesting Intel's rally may be severely overextended and a short-term correction is becoming more likely.
The reading indicates momentum remains strong, but the indicator warns that near-term price gains may be harder to sustain even if the longer-term trend stays intact.
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