Base
Koffing
last close
$9.78
+0.00% vs prior bar
robust mark · 30d
—
median of 0 qualifying sales
last qualifying sale
—
none recorded
observations · latest bar
0
No data that day.
Dimmed prices have no recorded sale behind them — they are a single reference mark, not a traded figure. Sold data covers graded cards only.
PSA populationas of 2026-08-05
graded, all grades
806
gem rate
20.0%
come back a 10
grade higher
79.7%
of graded copies
10161
9356
8.52
8123
762
638
539
418
34
22
11
Excluded from the scale: auth (1). Authentic-only copies were never graded, and a qualified grade is not comparable to a clean one.
No recorded sales. 77 days priced from a single daily market mark — real licensed data, but not individual transactions. Sold listings upstream cover graded cards only, so raw instruments never show sales.
evidence · completed sales0 in range
No completed sales in this range. Scrydex covers sold data for graded cards; raw coverage is not yet available, so raw instruments show reference marks only.