Stocks / Medical Devices
PENMedical Devices
Penumbra, Inc.
$323.051d -0.4%5d -1.2%settled close · 2026-08-26
Mkt cap $13B (8/16)β 0.0552w $226–359Shares 39.2MInd. Surgical & Medical Instruments & ApparatusNYSE since 2015Emp. 4,700HQ Alameda, CApenumbrainc.com
Who’s talkingIdea Scout · free
Who’s talking about PEN
No tracked investor commentary on PEN yet — the corpus grows weekly.
Idea Scout tracks who’s
talking across television, podcasts, and interviews — every stance
dated to the appearance it came from.
Sign up free →
The options tapeThe Brief · paid
Notable options days
Sessions in the last 120 where PEN’s settled options volume ran ≥ 2× its trailing 20-session baseline, or delta-dollar flow ran ≥ 2.5× — 18 of 120 sessions qualified.
The qualifying dates are the free record. Close, flow, call/LEAPS mix and the 20-session outcome — for every session below — are Brief subscriber content.
| Date | Close | RVOL | Δ$ flow ($M) | Call % | LEAPS % | +20 sess. |
|---|---|---|---|---|---|---|
| 2026-08-26 | ||||||
| 2026-07-29 | ||||||
| 2026-07-24 | ||||||
| 2026-07-20 | ||||||
| 2026-07-17 | ||||||
| 2026-07-08 | ||||||
| 2026-07-06 | ||||||
| 2026-04-24 | ||||||
| 2026-04-23 | ||||||
| 2026-04-22 | ||||||
| 2026-04-21 | ||||||
| 2026-04-20 | ||||||
| 2026-04-17 | ||||||
| 2026-04-16 | ||||||
| 2026-04-15 | ||||||
| 2026-04-14 | ||||||
| 2026-03-19 | ||||||
| 2026-03-02 |
+20 sess. = raw price change over the following 20
sessions — not market-adjusted; the tape tells you where to look,
not what happens next.
Today’s tape on
PEN is in this morning’s Brief.
Get The Brief — $20/mo →
Play history
The Playbook · coming
Has a validated strategy ever fired on PEN?
Has a validated strategy ever fired on PEN — and how did the trades resolve? Even “never fired” is information.
Fire-by-fire history — play, entry, exit,
result — is Playbook member content (coming).
| Fired | Play | Entry | Exit | Result |
|---|---|---|---|---|
Every play carries a written
validation gate, a spec, and a changelog.
How plays are validated