NBTX vs CELC

Analysts rate Nanobiotix S.

A. (NBTX) a "Buy" — based on 3 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

Over the past 5 years, Celcuity Inc.

(CELC) delivered a total return of +381. 6%, compared to +182. 9% for Nanobiotix S. A. (NBTX). Over 10 years, the gap is even starker: CELC returned +817. 1% versus NBTX's +167. 9%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

By beta (market sensitivity over 5 years), Celcuity Inc.

(CELC) is the lower-risk stock at 1. 59β versus Nanobiotix S. A. 's 2. 09β — meaning NBTX is approximately 31% more volatile than CELC relative to the S&P 500.

On earnings-per-share growth, the picture is similar: Celcuity Inc.

grew EPS -5. 2% year-over-year, compared to -33. 3% for Nanobiotix S. A.. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

Nanobiotix S.

A. (NBTX) is the more profitable company, earning 586. 9% net margin versus 0. 0% for Celcuity Inc. — meaning it keeps 586. 9% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: NBTX leads at 589. 1% versus 0. 0% for CELC. At the gross margin level — before operating expenses — NBTX leads at 100. 0%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

None of the stocks in this comparison currently pay a material dividend.

All are effectively zero-yield and should be held for capital appreciation rather than income.

For long-horizon retirement investors, Celcuity Inc.

(CELC) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (+817. 1% 10Y return). Nanobiotix S. A. (NBTX) carries a higher beta of 2. 09 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (CELC: +817. 1%, NBTX: +167. 9%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

Both stocks operate in the Healthcare sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.