Professors Research Professor Birch 221
EnglishProfessor Program Promos · 221 · Promo
Professors Research Professor Birch 221 (Holofoil) is at $29.99 · all-time high $30.00 on 2026-08-04 (at its high) · low $29.99 on 2026-08-26 · 23 days of recorded history, tracked since 2026-08-04.
Market sits 0% above the cheapest active listing — about its usual gap. The cheapest listing is an asking price of any condition; the market price comes from recent sales.
Limited data — Only 23 days recorded, updated 1 day ago. Treat the trend with caution.
Price change
- 1d
- 0.0%
- 7d
- -0.0%
- 30d
- —
- 90d
- —
- 1y
- —
- All
- -0.0%
Cheapest listing is the lowest active asking price, any condition or seller — market price comes from recent sales, so the two can cross. 9 of 32 points in this range have no usable price — days with no observation, or with a price we rejected as implausible. How we decide
View data (23 points)
| Date | Market price |
|---|---|
| 2026-08-30 | $29.99 |
| 2026-08-29 | $29.99 |
| 2026-08-28 | $29.99 |
| 2026-08-27 | $29.99 |
| 2026-08-26 | $29.99 |
| 2026-08-21 | $30.00 |
| 2026-08-20 | $30.00 |
| 2026-08-19 | $30.00 |
| 2026-08-18 | $30.00 |
| 2026-08-17 | $30.00 |
| 2026-08-16 | $30.00 |
| 2026-08-15 | $30.00 |
| 2026-08-14 | $30.00 |
| 2026-08-13 | $30.00 |
| 2026-08-12 | $30.00 |
| 2026-08-11 | $30.00 |
| 2026-08-10 | $30.00 |
| 2026-08-09 | $30.00 |
| 2026-08-08 | $30.00 |
| 2026-08-07 | $30.00 |
| 2026-08-06 | $30.00 |
| 2026-08-05 | $30.00 |
| 2026-08-04 | $30.00 |
Signals
- 20-day avg
- $30.00 below
Trading 0% of the way up its 52-week range.
Steady — this price moves about 0.0% a day over the last 90 days, bottom quarter of the catalogue.
