the tape is running Β· the market is not
NVDAx$228.70𝄽 +0.08% vs closeTSLAx$377.12𝄽 βˆ’0.06% vs closeAAPLx$327.49𝄽 βˆ’0.16% vs closeMSFTx$511.45𝄽 +0.38% vs closeGOOGLx$341.87𝄽 βˆ’0.18% vs closeAMZNx$257.81𝄽 βˆ’0.48% vs closeMETAx$610.27𝄽 βˆ’0.02% vs closeSPYx$771.79𝄽 βˆ’0.10% vs closeQQQx$717.03𝄽 βˆ’0.02% vs closeGLDx$409.84𝄽 βˆ’0.02% vs closeCOINx$191.83𝄽 βˆ’0.02% vs closeMSTRx$143.78𝄽 βˆ’0.09% vs closeHOODx$124.52𝄽 +0.17% vs closeCRCLx$102.38𝄽 βˆ’0.27% vs closePLTRx$183.58𝄽 +0.62% vs closeORCLx$152.91𝄽 βˆ’0.63% vs closeINTCx$91.58𝄽 +0.03% vs closeSPCXx$149.16𝄽 βˆ’0.16% vs closeMCDx$259.49𝄽 βˆ’0.05% vs closeGMEx$19.43𝄽 +0.68% vs close
all of it β†’

The week

Seven days on one axis, and the list it was summed from.

tacettacettacettacettacetTHE UNDERLYINGTHE PERPETUAL

19.35% sounding Β· 80.65% tacet Β· 32.5 of 168 hours. Each bar’s height is the fraction of that hour the auction was actually running, so a bell hour draws shorter than a full one.

daydateopenclosewhat it was
Friday2026-08-2809:3016:00regular session
Saturday2026-08-29β€”β€”tacet β€” Saturday
Sunday2026-08-30β€”β€”tacet β€” Sunday
Monday2026-08-3109:3016:00regular session
Tuesday2026-09-0109:3016:00regular session
Wednesday2026-09-0209:3016:00regular session
Thursday2026-09-0309:3016:00regular session

5

days with a session

2

days fully shut

0

of those were holidays

Where the calendar comes from

published exchange calendar, applied to the exchange's own wall clock, in America/New_York, via the exchange’s own wall clock rather than a fixed offset β€” the session is 13:30–20:00 UTC in summer and 14:30–21:00 in winter, so an offset implementation is wrong for an hour a day, half the year.

The holidays and the two 13:00 half days are written out literally rather than derived. Good Friday needs a computus and the exchange has closed for funerals; a published list can be checked in a minute, a clever rule cannot be checked at all. It runs through 2027-12-31, past which this page says so instead of extrapolating β€” an invented holiday is invisible.

The figures above are the last seven days, measured, not a typical week quoted from memory. A plain week of five full sessions is 32.5 hours of 168 β€” 80.65% with no live market β€” and any window containing a holiday reads darker than that. What that does to the prices.