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Calibration data (OIranges.csv) failed to load — heatmap colors are unreliable. OI level 5 (wall) may be shown for all nonzero cells.
CALLS
<p25
p25–50
p50–75
p75–90
>p90
PUTS
<p25
p25–50
p50–75
p75–90
>p90
OI color · Vol number (superscript)
No live data yet. The collector starts each session day and uploads the first snapshot ~11 minutes after pre-market opens.