Sectors & Industries HealthcareDiagnostics & Research
Best Diagnostic & Research Stocks to Buy Now (2025)
Top diagnostic & research stocks in 2025 ranked by overall Zen Rating. "A" Rated stocks have returned an average of +32.52% per year, and are the best diagnostic & research stocks to buy now. Learn More.

Industry: Diagnostics & Research

Growth Financials Momentum Sentiment Forecast Dividends Due Diligence

Diagnostics & Research is Zen Rated B and is the 41st ranked industry out of 145 stock market industries

Ticker	Company	Price	Graham Fair Value	Graham Fair Value %	P/E	Forward P/E	P/S	P/B	PEG	Free Cash Flow	Free Cash Flow Yield	Book Value	BVPS	EV	EV/EBITDA
SHC	SOTERA HEALTH CO	$17.44	$6.54	166.68%	87.20x	21.96x	4.31x	9.00x	1.24x	$86.62M	1.75%	$550.47M	1.94	$6.93B	16.19
IDXX	IDEXX LABORATORIES INC	$755.96	$116.63	548.18%	59.43x	58.76x	14.53x	38.67x	6.99x	$953.57M	1.57%	$1.56B	19.49	$61.24B	42.21
DHR	DANAHER CORP	$228.46	$73.93	209.01%	46.82x	29.31x	6.69x	3.16x	1.93x	$5.03B	3.10%	$51.07B	71.86	$176.70B	25.74
CDNA	CAREDX INC	$17.81	$9.04	97.04%	15.22x	32.64x	2.61x	2.94x	3.24x	$37.09M	3.96%	$311.14M	5.93	$845.24M	11.99
QGEN	QIAGEN NV	$48.10	$21.62	122.50%	25.86x	19.94x	5.04x	2.87x	1.73x	$478.88M	4.59%	$3.65B	16.83	$11.24B	15.38
ILMN	ILLUMINA INC	$129.81	$40.81	218.12%	29.04x	27.38x	4.63x	8.33x	3.46x	$1.00B	5.04%	$2.38B	15.56	$21.28B	16.76
CRL	CHARLES RIVER LABORATORIES INTERNATIONAL INC	$178.94	N/A	N/A	-117.72x	17.39x	2.19x	2.59x	N/A	$543.67M	6.17%	$3.41B	69.20	$11.23B	21.85
MEDP	MEDPACE HOLDINGS INC	$606.60	$131.46	361.44%	41.38x	40.20x	7.24x	58.19x	5.19x	$676.77M	3.97%	$293.64M	10.44	$16.92B	30.04
CAI	CARIS LIFE SCIENCES INC	$25.09	N/A	N/A	N/A	-9.82x	N/A	14.80x	N/A	N/A	N/A	$478.36M	1.70	$6.70B	N/A
A	AGILENT TECHNOLOGIES INC	$154.37	$51.92	197.35%	36.07x	27.15x	6.46x	6.87x	2.21x	$1.09B	2.48%	$6.37B	22.43	$45.64B	25.40
TMO	THERMO FISHER SCIENTIFIC INC	$593.25	$210.19	182.25%	34.21x	25.84x	5.13x	4.37x	2.10x	$6.15B	2.74%	$51.02B	134.97	$256.59B	22.75
LH	LABCORP HOLDINGS INC	$268.27	$154.78	73.32%	26.17x	15.95x	1.62x	2.56x	1.08x	$1.38B	6.21%	$8.70B	104.91	$28.17B	12.76
PRE	PRENETICS GLOBAL LTD	$14.28	N/A	N/A	-4.00x	-5.52x	2.99x	1.23x	N/A	N/A	N/A	$161.29M	11.60	$187.27M	N/A
IQV	IQVIA HOLDINGS INC	$231.80	$113.72	103.83%	31.58x	19.30x	2.48x	6.40x	1.25x	$2.29B	5.79%	$6.16B	36.19	$52.78B	15.41
BNR	BURNING ROCK BIOTECH LTD	$21.34	N/A	N/A	-12.99x	-2.98x	3.04x	2.98x	N/A	-$5.09M	-2.22%	$77.19M	7.16	$168.99M	N/A
FLGT	FULGENT GENETICS INC	$30.15	N/A	N/A	-21.69x	-85.27x	2.94x	0.83x	N/A	-$19.84M	-2.14%	$1.13B	36.62	$814.84M	-37.46
PRPO	PRECIPIO INC	$23.75	N/A	N/A	-28.61x	N/A	1.71x	3.03x	N/A	$589.00k	1.52%	$13.75M	8.40	$42.87M	87.48
FONR	FONAR CORP	$14.07	$7.00	100.92%	12.45x	N/A	0.82x	0.53x	18.78x	$7.44M	8.58%	$174.87M	28.35	$78.32M	5.54
MTD	METTLER TOLEDO INTERNATIONAL INC	$1,486.55	$370.54	301.19%	37.00x	35.04x	7.74x	-121.86x	4.28x	$890.38M	2.92%	-$249.20M	-12.15	$32.51B	26.49
MYGN	MYRIAD GENETICS INC	$7.60	N/A	N/A	-1.76x	1,617.02x	0.86x	1.90x	N/A	-$29.50M	-4.17%	$372.80M	4.00	$775.32M	-2.20
DGX	QUEST DIAGNOSTICS INC	$189.69	$82.39	130.24%	21.95x	19.15x	1.96x	2.91x	2.32x	$1.39B	6.56%	$7.26B	64.80	$27.05B	12.91
NEOG	NEOGEN CORP	$6.04	N/A	N/A	-1.26x	24.67x	1.48x	0.62x	N/A	-$2.52M	-0.20%	$2.12B	9.75	$1.97B	-2.24
BLLN	BILLIONTOONE INC	$127.85	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	-$250.25M	-5.69	N/A	N/A
WAT	WATERS CORP	$407.14	$120.72	237.25%	37.32x	31.04x	7.80x	10.40x	2.76x	$602.27M	2.48%	$2.33B	39.15	$25.27B	24.20
GH	GUARDANT HEALTH INC	$107.79	N/A	N/A	-33.58x	-33.75x	14.90x	-38.33x	N/A	-$262.23M	-1.95%	-$354.47M	-2.84	$14.20B	-40.09
ICLR	ICON PLC	$183.65	$119.28	53.97%	24.75x	13.76x	1.75x	1.50x	0.93x	$964.18M	6.79%	$9.33B	120.65	$17.09B	14.12
GRAL	GRAIL INC	$110.16	N/A	N/A	-10.32x	-8.04x	28.06x	1.92x	N/A	-$329.83M	-8.29%	$2.24B	62.01	$4.22B	-10.87
NEO	NEOGENOMICS INC	$12.13	N/A	N/A	-13.78x	138.79x	2.20x	1.87x	N/A	-$17.05M	-1.10%	$838.29M	6.53	$1.82B	-55.61
XGN	EXAGEN INC	$7.74	N/A	N/A	-8.41x	-11.42x	2.79x	9.67x	N/A	-$10.99M	-6.19%	$18.14M	0.79	$167.93M	-13.37
CSTL	CASTLE BIOSCIENCES INC	$39.94	N/A	N/A	-97.41x	-21.63x	3.38x	2.50x	N/A	$25.42M	2.19%	$467.05M	16.07	$1.12B	46.56
CHEK	CHECK-CAP LTD	$1.61	N/A	N/A	-0.37x	-0.66x	N/A	-6.50x	N/A	-$8.00M	-84.97%	-$1.45M	-0.25	$9.29M	-0.36
RVTY	REVVITY INC	$104.66	$45.04	132.38%	52.59x	20.91x	4.29x	1.61x	1.20x	$497.40M	4.12%	$7.38B	63.91	$14.30B	18.43
ACRS	ACLARIS THERAPEUTICS INC	$2.88	N/A	N/A	-1.82x	-5.31x	22.50x	2.60x	N/A	-$43.01M	-12.19%	$120.10M	0.98	$286.78M	-2.03
RDNT	RADNET INC	$82.79	N/A	N/A	-487.00x	201.63x	3.19x	6.03x	N/A	$52.14M	0.83%	$1.06B	13.94	$7.43B	27.62
BDSX	BIODESIX INC	$7.87	N/A	N/A	-1.47x	-1.43x	0.74x	-36.36x	N/A	-$29.33M	-49.68%	-$1.72M	-0.23	$118.94M	-4.55
NTRA	NATERA INC	$237.12	N/A	N/A	-103.55x	-116.72x	15.37x	26.14x	N/A	$106.07M	0.33%	$1.25B	9.13	$31.87B	-127.77
MDXH	MDXHEALTH SA	$3.67	N/A	N/A	-0.72x	-7.20x	0.18x	-2.20x	N/A	-$6.98M	-38.42%	-$8.26M	-1.67	$132.07M	-50.89
TWST	TWIST BIOSCIENCE CORP	$31.70	N/A	N/A	-24.38x	-20.50x	5.03x	4.10x	N/A	-$75.63M	-3.99%	$472.96M	7.91	$1.85B	-35.42
NOTV	INOTIV INC	$0.87	N/A	N/A	-0.27x	-0.47x	0.06x	0.19x	N/A	-$52.60M	-177.61%	$157.69M	4.64	$459.38M	81.26
DRIO	DARIOHEALTH CORP	$11.97	N/A	N/A	-1.07x	-0.44x	1.52x	1.08x	N/A	-$26.92M	-71.67%	$74.93M	23.88	$80.75M	-2.23
IMDX	INSIGHT MOLECULAR DIAGNOSTICS INC	$6.04	N/A	N/A	-1.89x	-6.07x	44.09x	-18.83x	N/A	-$23.91M	-12.35%	-$9.20M	-0.29	$156.84M	-2.68
PSNL	PERSONALIS INC	$10.72	N/A	N/A	-12.92x	-10.90x	13.76x	5.55x	N/A	-$66.17M	-6.96%	$171.42M	1.93	$934.67M	-15.07
OPK	OPKO HEALTH INC	$1.34	N/A	N/A	-5.58x	-3.88x	1.62x	0.79x	N/A	-$211.79M	-20.37%	$1.31B	1.68	$1.00B	22.17
STIM	NEURONETICS INC	$1.39	N/A	N/A	-1.67x	-2.38x	0.72x	3.48x	N/A	-$30.55M	-32.66%	$27.36M	0.41	$151.47M	-4.52
NDRA	ENDRA LIFE SCIENCES INC	$6.23	N/A	N/A	0.32x	-0.82x	N/A	42.40x	N/A	-$5.10M	-107.62%	$171.38k	0.23	$7.59M	-0.97
LAB	STANDARD BIOTOOLS INC	$1.43	N/A	N/A	-4.33x	-6.44x	4.24x	1.38x	N/A	-$98.42M	-17.97%	$399.66M	1.05	$447.90M	-4.18
BIAF	BIOAFFINITY TECHNOLOGIES INC	$1.45	N/A	N/A	-0.07x	-0.10x	0.23x	0.73x	N/A	-$8.51M	-550.21%	$8.90M	8.35	-$465.12k	0.03
BNBX	BNB PLUS CORP	$2.49	N/A	N/A	-0.01x	-0.03x	0.43x	0.44x	N/A	-$13.26M	-931.00%	$7.26M	12.70	-$1.93M	0.15
TRIB	TRINITY BIOTECH PLC	$0.98	N/A	N/A	-0.54x	-1.07x	0.29x	-0.50x	N/A	-$15.27M	-86.73%	-$35.18M	-1.96	$113.20M	-5.70
SERA	SERA PROGNOSTICS INC	$3.32	N/A	N/A	-4.31x	-4.28x	1,660.00x	1.56x	N/A	-$26.17M	-15.90%	$82.18M	1.66	$126.50M	-4.06
XWEL	XWELL INC	$0.76	N/A	N/A	-0.23x	N/A	0.15x	-0.69x	N/A	-$15.12M	-345.39%	-$6.33M	-1.10	$9.70M	-0.73
PRPH	PROPHASE LABS INC	$0.18	N/A	N/A	-0.10x	-0.32x	6.96x	1.22x	N/A	-$10.33M	-137.57%	$6.86M	0.17	$15.64M	-0.86
ADVB	ADVANCED BIOMED INC	$0.42	N/A	N/A	-2.59x	N/A	N/A	2.99x	N/A	-$6.42M	-71.57%	$3.00M	0.14	$6.35M	-2.06
VNRX	VOLITIONRX LTD	$0.31	N/A	N/A	-1.35x	-1.57x	22.21x	-1.10x	N/A	-$19.77M	-58.84%	-$34.64M	-0.32	$49.25M	-2.33
ISPC	ISPECIMEN INC	$0.48	N/A	N/A	-0.06x	-0.60x	0.84x	1.54x	N/A	-$7.97M	-282.61%	$3.07M	0.53	$2.22M	-0.23
EXAS	EXACT SCIENCES CORP	$101.45	N/A	N/A	-18.96x	-157.24x	6.23x	7.68x	N/A	$247.08M	1.29%	$2.50B	13.22	$20.95B	-29.48
MYNZ	MAINZ BIOMED NV	$1.12	N/A	N/A	-0.21x	-0.38x	5.33x	1.82x	N/A	-$15.42M	-437.95%	$2.52M	0.80	$4.63M	-0.25

Diagnostic & Research Stocks FAQ

What are the best diagnostic & research stocks to buy right now in Nov 2025?

According to Zen Ratings, our proprietary rating system that evaluates 115 factors proven to drive growth in stocks and assigns each stock in our system an overall letter grade as well as 7 individual Component Grades for Value, Growth, Momentum, Sentiment, Safety, Financials, and proprietary AI algorithms, the 3 best diagnostic & research stocks to buy right now are:

1. Sotera Health Co (NASDAQ:SHC)

Sotera Health Co (NASDAQ:SHC) is the #1 top diagnostic & research stock out of 57 with a Zen Rating of A. Stocks with a rating of A have had an average return of +32.52% per year. Learn more.

The Component Grade breakdown for Sotera Health Co (NASDAQ:SHC) is: Value: C, Growth: A, Momentum: B, Sentiment: A, Safety: B, Financials: C, and AI: C.

Sotera Health Co (NASDAQ:SHC) has a Due Diligence Score of 24, which is -2 points lower than the diagnostic & research industry average of 26. Although this number is below the industry average, our proven quant model rates SHC as a "A".

SHC passed 8 out of 33 due diligence checks and has weak fundamentals. Sotera Health Co has seen its stock return 34.67% over the past year, overperforming other diagnostic & research stocks by 14 percentage points.

Sotera Health Co has an average 1 year price target of $18.00, an upside of 3.21% from Sotera Health Co's current stock price of $17.44.

Sotera Health Co stock has a consensus Buy recommendation according to Wall Street analysts. Of the 4 analysts covering Sotera Health Co, 25% have issued a Strong Buy rating, 25% have issued a Buy, 50% have issued a hold, while 0% have issued a Sell rating, and 0% have issued a Strong Sell.

2. Idexx Laboratories (NASDAQ:IDXX)

Idexx Laboratories (NASDAQ:IDXX) is the #2 top diagnostic & research stock out of 57 with a Zen Rating of A. Stocks with a rating of A have had an average return of +32.52% per year. Learn more.

The Component Grade breakdown for Idexx Laboratories (NASDAQ:IDXX) is: Value: C, Growth: C, Momentum: B, Sentiment: B, Safety: C, Financials: A, and AI: C.

Idexx Laboratories (NASDAQ:IDXX) has a Due Diligence Score of 50, which is 24 points higher than the diagnostic & research industry average of 26.

IDXX passed 17 out of 33 due diligence checks and has strong fundamentals. Idexx Laboratories has seen its stock return 81.15% over the past year, overperforming other diagnostic & research stocks by 60 percentage points.

Idexx Laboratories has an average 1 year price target of $737.14, a downside of -2.49% from Idexx Laboratories's current stock price of $755.96.

Idexx Laboratories stock has a consensus Strong Buy recommendation according to Wall Street analysts. Of the 7 analysts covering Idexx Laboratories, 57.14% have issued a Strong Buy rating, 14.29% have issued a Buy, 28.57% have issued a hold, while 0% have issued a Sell rating, and 0% have issued a Strong Sell.

3. Danaher (NYSE:DHR)

Danaher (NYSE:DHR) is the #3 top diagnostic & research stock out of 57 with a Zen Rating of B. Stocks with a rating of B have had an average return of +19.88% per year. Learn more.

The Component Grade breakdown for Danaher (NYSE:DHR) is: Value: C, Growth: C, Momentum: C, Sentiment: B, Safety: C, Financials: B, and AI: C.

Danaher (NYSE:DHR) has a Due Diligence Score of 29, which is 3 points higher than the diagnostic & research industry average of 26.

DHR passed 10 out of 38 due diligence checks and has average fundamentals. Danaher has seen its stock lose -3.43% over the past year, underperforming other diagnostic & research stocks by -24 percentage points.

Danaher has an average 1 year price target of $240.40, an upside of 5.23% from Danaher's current stock price of $228.46.

Danaher stock has a consensus Strong Buy recommendation according to Wall Street analysts. Of the 10 analysts covering Danaher, 50% have issued a Strong Buy rating, 30% have issued a Buy, 20% have issued a hold, while 0% have issued a Sell rating, and 0% have issued a Strong Sell.

What are the diagnostic & research stocks with highest dividends?

Out of 6 diagnostic & research stocks that have issued dividends in the past year, the 3 diagnostic & research stocks with the highest dividend yields are:

1. Quest Diagnostics (NYSE:DGX)

Quest Diagnostics (NYSE:DGX) has an annual dividend yield of 1.27%, which is 1 percentage points higher than the diagnostic & research industry average of 0.58%. Quest Diagnostics's dividend payout is stable, having never dropped by more than 10% in the last 10 years. Quest Diagnostics's dividend has shown consistent growth over the last 10 years.

Quest Diagnostics's dividend payout ratio of 27.2% indicates that its dividend yield is sustainable for the long-term.

2. Labcorp Holdings (NYSE:LH)

Labcorp Holdings (NYSE:LH) has an annual dividend yield of 0.81%, which is the same as the diagnostic & research industry average of 0.58%. Labcorp Holdings's dividend payout is stable, having never dropped by more than 10% in the last 10 years. Labcorp Holdings's dividend has not shown consistent growth over the last 10 years.

Labcorp Holdings's dividend payout ratio of 28.1% indicates that its dividend yield is sustainable for the long-term.

3. Agilent Technologies (NYSE:A)

Agilent Technologies (NYSE:A) has an annual dividend yield of 0.48%, which is the same as the diagnostic & research industry average of 0.58%. Agilent Technologies's dividend payout is stable, having never dropped by more than 10% in the last 10 years. Agilent Technologies's dividend has shown consistent growth over the last 10 years.

Agilent Technologies's dividend payout ratio of 22.9% indicates that its dividend yield is sustainable for the long-term.

Why are diagnostic & research stocks down?

Diagnostic & research stocks were down -0.65% in the last day, and up 7.06% over the last week.

We couldn't find a catalyst for why diagnostic & research stocks are down.

What are the most undervalued diagnostic & research stocks?

Based on the Valuation rating, one of the 7 components of a stocks overall Zen Ratings grade, which evaluates factors including estimated earnings yield, earnings before interest and taxes/enterprise value, cash flow yield, free cash flow to price, and price-to-earnings growth (PEG ratio), the 3 most undervalued diagnostic & research stocks right now are:

1. Qiagen Nv (NYSE:QGEN)

Qiagen Nv (NYSE:QGEN) is the most undervalued diagnostic & research stock based on its Valuation Rating of B. Valuation is one of 7 Component Grades used to calculate the overall Zen Rating.

Qiagen Nv has a valuation score of 29, which is 15 points higher than the diagnostic & research industry average of 14. It passed 2 out of 7 valuation due diligence checks.

Qiagen Nv's stock has gained 11.24% in the past year. It has underperformed other stocks in the diagnostic & research industry by -10 percentage points.

2. Fonar (NASDAQ:FONR)

Fonar (NASDAQ:FONR) is the second most undervalued diagnostic & research stock based on its Valuation Rating of B. Valuation is one of 7 Component Grades used to calculate the overall Zen Rating.

Fonar has a valuation score of 71, which is 57 points higher than the diagnostic & research industry average of 14. It passed 5 out of 7 valuation due diligence checks.

Fonar's stock has dropped -14.47% in the past year. It has underperformed other stocks in the diagnostic & research industry by -35 percentage points.

3. Revvity (NYSE:RVTY)

Revvity (NYSE:RVTY) is the third most undervalued diagnostic & research stock based on its Valuation Rating of B. Valuation is one of 7 Component Grades used to calculate the overall Zen Rating.

Revvity has a valuation score of 14, which is 0 points higher than the diagnostic & research industry average of 14. It passed 1 out of 7 valuation due diligence checks.

Revvity's stock has dropped -9.05% in the past year. It has underperformed other stocks in the diagnostic & research industry by -30 percentage points.

Are diagnostic & research stocks a good buy now?

56.1% of diagnostic & research stocks rated by analysts are a strong buy right now. On average, analysts expect diagnostic & research stocks to fall by -0.7% over the next year.

4.17% of diagnostic & research stocks have a Zen Rating of A (Strong Buy), 29.17% of diagnostic & research stocks are rated B (Buy), 56.25% are rated C (Hold), 6.25% are rated D (Sell), and 4.17% are rated F (Strong Sell).

What is the average p/e ratio of the diagnostics & research industry?

The average P/E ratio of the diagnostics & research industry is 23.49x.

WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.