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Chicago Daily AQI

Historically points to SPY down over 1 yr.

$p—balanced · vs SPY
Chicago Daily AQI
Historically points to SPY down over 1 yr.
Latest3.00
1 yr hit rate38%
Samplen=6389
Fires (|z|≥2)266
standardpoorly.comas of 2026-05-01
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