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Penumbra Inc (PEN)

Red 📈 Growth

Health Care · As of 17 July 2026

Price chart — 52 weeks

PEN · 318.32 (last weekly close) SMA 10w SMA 40w
180200220240260280300320340360AugSepOctNovDec2026FebMarAprMayJunJul10.0MWeek of Jul 21, 2025 · O 230.26 · H 235.40 · L 226.66 · C 233.10 · Vol 2.2MWeek of Jul 28, 2025 · O 233.18 · H 261.81 · L 225.48 · C 243.01 · Vol 4.3MWeek of Aug 4, 2025 · O 245.13 · H 246.39 · L 234.34 · C 240.49 · Vol 1.8MWeek of Aug 11, 2025 · O 240.68 · H 260.22 · L 236.66 · C 253.02 · Vol 1.9MWeek of Aug 18, 2025 · O 251.94 · H 268.81 · L 250.56 · C 264.74 · Vol 1.9MWeek of Aug 25, 2025 · O 263.94 · H 273.43 · L 261.65 · C 272.64 · Vol 2.7MWeek of Sep 1, 2025 · O 272.19 · H 285.20 · L 267.21 · C 281.46 · Vol 1.9MWeek of Sep 8, 2025 · O 281.79 · H 288.91 · L 270.54 · C 272.73 · Vol 2.6MWeek of Sep 15, 2025 · O 273.06 · H 275.69 · L 250.75 · C 255.60 · Vol 2.4MWeek of Sep 22, 2025 · O 255.15 · H 258.18 · L 245.79 · C 253.37 · Vol 2.0MWeek of Sep 29, 2025 · O 253.33 · H 260.89 · L 242.41 · C 256.06 · Vol 1.6MWeek of Oct 6, 2025 · O 257.71 · H 264.10 · L 245.13 · C 260.49 · Vol 1.6MWeek of Oct 13, 2025 · O 260.00 · H 265.51 · L 248.89 · C 249.00 · Vol 1.4MWeek of Oct 20, 2025 · O 251.14 · H 255.82 · L 242.80 · C 252.99 · Vol 1.8MWeek of Oct 27, 2025 · O 259.38 · H 260.00 · L 225.46 · C 227.37 · Vol 2.4MWeek of Nov 3, 2025 · O 225.60 · H 272.00 · L 221.26 · C 266.19 · Vol 3.5MWeek of Nov 10, 2025 · O 266.60 · H 283.84 · L 262.94 · C 280.07 · Vol 2.3MWeek of Nov 17, 2025 · O 282.93 · H 293.18 · L 276.01 · C 288.47 · Vol 2.4MWeek of Nov 24, 2025 · O 288.15 · H 301.22 · L 286.37 · C 293.17 · Vol 2.1MWeek of Dec 1, 2025 · O 295.62 · H 303.00 · L 284.95 · C 300.66 · Vol 2.3MWeek of Dec 8, 2025 · O 299.16 · H 315.01 · L 286.75 · C 312.02 · Vol 2.8MWeek of Dec 15, 2025 · O 312.48 · H 320.00 · L 307.00 · C 315.90 · Vol 3.1MWeek of Dec 22, 2025 · O 314.61 · H 321.38 · L 313.45 · C 316.97 · Vol 965KWeek of Dec 29, 2025 · O 318.86 · H 319.78 · L 302.19 · C 309.42 · Vol 1.1MWeek of Jan 5, 2026 · O 310.00 · H 325.03 · L 305.30 · C 322.44 · Vol 2.9MWeek of Jan 12, 2026 · O 322.25 · H 352.15 · L 290.00 · C 350.78 · Vol 16.2MWeek of Jan 19, 2026 · O 350.80 · H 362.41 · L 350.02 · C 359.26 · Vol 8.5MWeek of Jan 26, 2026 · O 360.00 · H 361.55 · L 356.39 · C 358.17 · Vol 5.8MWeek of Feb 2, 2026 · O 358.78 · H 359.87 · L 339.33 · C 341.02 · Vol 6.4MWeek of Feb 9, 2026 · O 340.85 · H 341.66 · L 337.63 · C 339.30 · Vol 3.3MWeek of Feb 16, 2026 · O 339.01 · H 342.00 · L 339.01 · C 339.36 · Vol 2.0MWeek of Feb 23, 2026 · O 339.53 · H 344.53 · L 338.53 · C 344.39 · Vol 3.6MWeek of Mar 2, 2026 · O 342.30 · H 343.29 · L 337.91 · C 338.64 · Vol 3.6MWeek of Mar 9, 2026 · O 338.16 · H 340.33 · L 333.94 · C 336.18 · Vol 3.0MWeek of Mar 16, 2026 · O 336.19 · H 338.99 · L 335.79 · C 335.85 · Vol 2.8MWeek of Mar 23, 2026 · O 337.81 · H 337.81 · L 334.17 · C 335.10 · Vol 2.7MWeek of Mar 30, 2026 · O 328.70 · H 330.70 · L 326.58 · C 330.36 · Vol 3.8MWeek of Apr 6, 2026 · O 330.11 · H 332.05 · L 328.86 · C 329.77 · Vol 2.4MWeek of Apr 13, 2026 · O 329.99 · H 333.54 · L 329.72 · C 332.13 · Vol 1.6MWeek of Apr 20, 2026 · O 332.14 · H 335.20 · L 327.00 · C 329.89 · Vol 3.9MWeek of Apr 27, 2026 · O 329.91 · H 331.80 · L 323.71 · C 325.33 · Vol 2.3MWeek of May 4, 2026 · O 324.79 · H 326.43 · L 321.79 · C 322.23 · Vol 2.4MWeek of May 11, 2026 · O 321.88 · H 324.55 · L 321.38 · C 322.32 · Vol 1.7MWeek of May 18, 2026 · O 322.90 · H 329.67 · L 322.90 · C 328.69 · Vol 2.5MWeek of May 25, 2026 · O 328.12 · H 329.65 · L 318.12 · C 318.30 · Vol 1.7MWeek of Jun 1, 2026 · O 318.41 · H 323.10 · L 317.81 · C 320.53 · Vol 2.3MWeek of Jun 8, 2026 · O 320.00 · H 322.65 · L 317.53 · C 318.71 · Vol 2.0MWeek of Jun 15, 2026 · O 318.25 · H 319.83 · L 315.81 · C 317.20 · Vol 1.8MWeek of Jun 22, 2026 · O 316.27 · H 318.99 · L 315.03 · C 316.63 · Vol 2.0MWeek of Jun 29, 2026 · O 317.17 · H 319.19 · L 314.80 · C 318.57 · Vol 1.4MWeek of Jul 6, 2026 · O 318.94 · H 320.03 · L 316.49 · C 318.10 · Vol 1.2MWeek of Jul 13, 2026 · O 317.63 · H 319.94 · L 315.69 · C 318.32 · Vol 2.4M318
Weekly candles over the last 52 weeks, split-adjusted, with 10- and 40-week moving averages; trading volume along the bottom. As of Jul 13, 2026.

OakBag’s model puts the fair value of Penumbra Inc (PEN) at about $151.64, against a recent price of $318.32 — a margin of safety of -110%. On that basis the traffic light is set so it looks expensive or risky. The estimate blends up to 4 independent valuation methods and is benchmarked against other Health Care names. It is a model estimate for research, not a price target or a recommendation.

Fair value vs. price

Current price
$318.32
Estimated fair value
$151.64
Margin of safety
-110%
−50%0+50%
Growth fair value
$192.42
Margin of safety (growth)
-65%

How the fair value is built

Peer P/E$160.04
Peer EV/EBITDA$143.24
ML-justified$199.84
Cash-flow DCF$143.24
Graham number$173.93

How is this computed?

Why not green?

  • It looks cheap largely because of its high quality. Stripping the quality premium out, the margin of safety is only -122% — below the buy bar (quality is already rewarded in the score).

Knock-out safety checks passed

  • Bankruptcy risk (Altman Z″)
  • Negative equity
  • Excessive leverage
  • Illiquid
  • Penny / micro-cap
  • Stale fundamentals
Piotroski F-score
5 / 9
Altman Z-score
11.70
Beneish M-score
-2.56

Quality & factor profile

Value -0.21
Quality +0.34
Profitability +0.51
Momentum -0.27
Growth +0.21
Low volatility +0.78

See the full analysis

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Frequently asked questions

Is Penumbra (PEN) undervalued?

On OakBag’s model, Penumbra Inc looks expensive or risky: the estimated fair value is $151.64 versus a recent price of $318.32, a margin of safety of -110%. This is a model estimate, not investment advice.

What is PEN’s fair value estimate?

OakBag estimates Penumbra Inc’s fair value at about $151.64, blending up to 4 methods — peer P/E, price-to-book, peer EV/EBITDA, a machine-learning valuation and a cash-flow DCF — clipped to a sensible band and taken at the median.

What is margin of safety?

Margin of safety is how far below the estimated fair value the price sits: (fair value − price) ÷ fair value. Here it is -110%. A positive number means the model sees the stock as cheap; OakBag only turns a stock green above +15%.

Does a green verdict mean I should buy PEN?

No. OakBag is an educational and research tool, not investment advice. The traffic light is an automated model output based on third-party data that may be delayed or inaccurate. Always do your own research.

Other Health Care stocks

An educational and research tool — not investment advice. OakBag is an educational and research tool, not investment advice. Scores and rankings are automated model outputs based on third-party data and may be inaccurate or delayed. Nothing here is a recommendation to buy or sell any security. Investing involves risk, including possible loss of principal.