AZTA vs BLFS vs RGEN vs FLGT vs TMO

For growth investors, BioLife Solutions, Inc.

(BLFS) is the stronger pick with 17. 0% revenue growth year-over-year, versus 3. 6% for Azenta, Inc. (AZTA). Thermo Fisher Scientific Inc. (TMO) offers the better valuation at 26. 8x trailing P/E (19. 1x forward), making it the more compelling value choice. Analysts rate Azenta, Inc. (AZTA) a "Buy" — based on 12 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.

On trailing P/E, Thermo Fisher Scientific Inc.

(TMO) is the cheapest at 26. 8x versus Repligen Corporation at 147. 0x. On forward P/E, Thermo Fisher Scientific Inc. is actually cheaper at 19. 1x.

Over the past 5 years, Thermo Fisher Scientific Inc.

(TMO) delivered a total return of +2. 8%, compared to -81. 0% for Azenta, Inc. (AZTA). Over 10 years, the gap is even starker: BLFS returned +1221% versus FLGT's +64. 6%. 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), Fulgent Genetics, Inc.

(FLGT) is the lower-risk stock at 0. 97β versus Azenta, Inc. 's 2. 17β — meaning AZTA is approximately 123% more volatile than FLGT relative to the S&P 500. On balance sheet safety, Fulgent Genetics, Inc. (FLGT) carries a lower debt/equity ratio of 0% versus 76% for Thermo Fisher Scientific Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), BioLife Solutions, Inc.

(BLFS) is pulling ahead at 17. 0% versus 3. 6% for Azenta, Inc. (AZTA). On earnings-per-share growth, the picture is similar: Repligen Corporation grew EPS 287. 0% year-over-year, compared to -39. 7% for Fulgent Genetics, Inc.. Over a 3-year CAGR, BLFS leads at 8. 1% annualised revenue growth. 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.

Thermo Fisher Scientific Inc.

(TMO) is the more profitable company, earning 15. 1% net margin versus -18. 8% for Fulgent Genetics, Inc. — meaning it keeps 15. 1% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: TMO leads at 18. 2% versus -28. 2% for FLGT. At the gross margin level — before operating expenses — BLFS leads at 64. 6%, 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.

On forward earnings alone, Thermo Fisher Scientific Inc.

(TMO) trades at 19. 1x forward P/E versus 156. 4x for BioLife Solutions, Inc. — 137. 3x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for AZTA: 140. 5% to $44. 67.

In this comparison, TMO (0.

4% yield) pays a dividend. AZTA, BLFS, RGEN, FLGT do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, BioLife Solutions, Inc.

(BLFS) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (+1221% 10Y return). Azenta, Inc. (AZTA) carries a higher beta of 2. 17 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (BLFS: +1221%, AZTA: +123. 4%), 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.

In terms of investment character: AZTA is a small-cap quality compounder stock; BLFS is a small-cap high-growth stock; RGEN is a small-cap high-growth stock; FLGT is a small-cap quality compounder stock; TMO is a mid-cap quality compounder stock. 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.