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S&P 500 vs McClellan Indicators Update - Our trend fiend, the McClellan Summation Index ($NYSI), is indicating a trend change in $SPX, while SPX is grinding above the upper Keltner channel. - Is the $NYSI early? Yes, it could be early by a few days, but it is a red flag, and it is not alone, many breadth and technical indicators are sending warnings. - The McClellan Oscillator ($NYMO) looks terrible.

Published May 16, 2026Updated May 16, 20262 min read
S&P 500 vs McClellan Indicators Update - Our trend fiend, the McClellan Summation Index ($NYSI), is indicating a trend change in $SPX, while SPX is grinding above the upper Keltner channel. - Is the $NYSI early? Yes, it could be early by a few days, but it is a red flag, and it is not alone, many breadth and technical indicators are sending warnings. - The McClellan Oscillator ($NYMO) looks terrible.
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