Tour
494
Options Simulation
Is QQQ's option expensive or cheap on this day?
The live contract is lined up against the last 7 same-weekday
trading days · every column is read on the same weekday and at
the SAME days-to-expiry, so a given weekday is only ever compared with
that same weekday · strikes are addressed by their offset from ATM and priced
as a % of spot, so the comparison survives the underlying moving
between periods
COST % = contract mark ÷ underlying price × 100 — the only
metric here that stays honest when spot moves between periods.
MEDIAN is the middle of the 7 historical columns.
EXPENSIVE / CHEAP is today vs that median (±20% band = IN LINE).
Historical columns are matched to the live column on THREE axes: same weekday,
same days-to-expiry, and the closest reading to the same TIME OF DAY
(shown as @HH:MM under each column). That last one matters — an
option can move 2x inside one morning, so comparing a 10:38 mark against
18:00 closes would be meaningless. An orange
time means the nearest reading we hold is more than 90 minutes
off the reference clock; treat that column with caution.
Automated, data-driven · educational only · not financial advice.