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

Overview Zen Rating Price Value Growth Financials Momentum

Sentiment Forecast Dividends Due Diligence

Diagnostics & Research is Zen Rated B and is the 47th ranked industry out of 145 stock market industries

Ticker	Company	Price	Volume	Vol 1d %	SMA 10	SMA 20	SMA 50	SMA 100	SMA 200	RSI	Stochastic %K	Stochastic %D	StochRSI %K	StochRSI %D	MACD	MACD Signal	MACD Histogram	Beta
ILMN	ILLUMINA INC	$77.10	1,426,071	28.08%	75.12	75.16	82.78	107.95	120.68	46.72	79.88	79.51	96.45	98.09	-2.25	-3.47	1.22	1.22
QGEN	QIAGEN NV	$42.63	936,732	-4.17%	41.91	41.11	40.04	42.19	43.11	57.79	71.26	73.69	71.66	80.04	0.67	0.51	0.16	0.57
LH	LABCORP HOLDINGS INC	$240.42	2,268,281	130.57%	224.72	225.72	236.38	237.03	231.00	59.98	91.91	83.55	99.68	99.68	-1.39	-3.70	2.31	0.64
CDNA	CAREDX INC	$18.13	1,050,044	2.36%	18.09	18.08	19.22	21.08	23.41	47.49	50.22	54.85	75.65	78.74	-0.26	-0.37	0.11	1.61
MTD	METTLER TOLEDO INTERNATIONAL INC	$1,065.23	209,735	7.62%	1,035.12	1,049.34	1,167.03	1,225.80	1,301.07	46.82	75.82	74.47	94.68	96.54	-33.39	-45.43	12.05	1.08
WAT	WATERS CORP	$340.82	277,986	-9.79%	330.66	331.95	357.97	374.16	359.08	49.48	76.01	74.85	97.97	98.09	-6.45	-10.04	3.60	0.94
A	AGILENT TECHNOLOGIES INC	$107.46	1,133,881	-32.90%	104.40	105.22	117.24	129.41	133.53	46.46	79.15	75.07	98.72	98.72	-3.35	-4.71	1.35	0.98
DHR	DANAHER CORP	$198.93	3,685,597	35.74%	192.92	191.20	201.79	215.66	238.28	52.70	77.18	75.73	98.73	99.15	-1.88	-3.78	1.90	0.87
IDXX	IDEXX LABORATORIES INC	$436.97	718,297	-21.03%	422.21	409.30	422.93	427.45	447.76	59.04	93.31	93.48	92.00	95.32	4.67	-0.83	5.50	1.14
DGX	QUEST DIAGNOSTICS INC	$178.50	1,307,165	15.38%	170.86	168.23	169.71	163.20	158.09	64.34	93.71	92.39	94.64	94.81	2.19	0.68	1.51	0.39
CSTL	CASTLE BIOSCIENCES INC	$19.85	322,452	-34.09%	20.97	20.21	21.18	24.64	26.57	43.85	46.68	55.69	39.23	56.44	-0.11	-0.18	0.07	1.43
CRL	CHARLES RIVER LABORATORIES INTERNATIONAL INC	$117.29	1,298,932	-5.37%	109.76	118.69	147.08	162.35	182.19	42.33	50.19	47.34	98.51	96.20	-10.71	-12.89	2.18	1.20
IQV	IQVIA HOLDINGS INC	$153.45	1,222,200	-16.19%	147.79	152.01	172.67	186.63	208.00	44.69	66.89	56.89	98.95	99.15	-7.18	-8.93	1.75	1.11
RVTY	REVVITY INC	$94.66	1,772,265	-14.09%	93.60	95.87	105.20	111.22	115.24	43.12	46.08	44.89	95.89	95.68	-3.40	-4.02	0.62	0.98
MYGN	MYRIAD GENETICS INC	$7.20	1,625,169	-17.64%	7.52	7.88	9.66	11.66	17.96	28.01	14.75	14.00	56.38	59.59	-0.65	-0.71	0.06	1.37
NTRA	NATERA INC	$154.89	931,529	-13.50%	150.16	146.01	148.85	158.58	141.75	56.54	93.36	93.41	96.51	95.77	1.33	-0.08	1.41	1.47
OPK	OPKO HEALTH INC	$1.40	2,721,472	33.94%	1.42	1.47	1.65	1.59	1.55	36.55	29.85	35.04	71.92	80.75	-0.07	-0.07	0.00	1.22
MEDP	MEDPACE HOLDINGS INC	$306.35	490,826	25.74%	296.56	296.05	315.15	329.44	344.17	51.69	87.69	84.82	93.32	91.81	-4.50	-6.81	2.31	1.19
XGN	EXAGEN INC	$6.88	323,036	41.10%	5.40	4.81	4.06	4.21	3.52	81.23	97.68	96.10	100.00	100.00	0.65	0.40	0.25	1.07
FONR	FONAR CORP	$12.49	10,885	-43.45%	12.18	12.54	13.54	14.55	15.53	43.33	25.37	13.66	85.62	69.31	-0.42	-0.49	0.07	0.51
FLGT	FULGENT GENETICS INC	$18.13	417,032	29.18%	18.51	18.05	17.32	17.70	19.52	51.83	67.86	77.63	32.31	53.26	0.38	0.39	-0.00	0.96
TWST	TWIST BIOSCIENCE CORP	$39.68	942,892	18.03%	38.37	38.12	39.95	44.39	45.03	51.40	82.18	80.85	95.38	95.57	-0.35	-0.79	0.43	2.24
MYNZ	MAINZ BIOMED NV	$3.56	909,149	-64.63%	3.32	3.27	4.24	4.88	8.50	48.70	63.72	67.65	93.36	93.64	-0.21	-0.33	0.12	0.82
SHC	SOTERA HEALTH CO	$11.31	912,528	9.63%	10.83	10.76	11.65	12.52	13.78	52.83	88.23	86.40	96.90	96.96	-0.14	-0.29	0.15	1.17
TMO	THERMO FISHER SCIENTIFIC INC	$427.53	2,433,728	-3.86%	429.33	439.95	488.91	518.30	550.34	37.77	28.05	28.06	85.25	86.24	-19.73	-21.24	1.52	0.82
NEO	NEOGENOMICS INC	$6.58	13,048,019	714.45%	9.48	9.26	9.84	12.81	14.10	26.72	58.44	76.41	60.84	85.01	-0.26	-0.20	-0.06	1.53
DRIO	DARIOHEALTH CORP	$0.72	106,316	-42.31%	0.76	0.68	0.68	0.71	0.83	52.00	77.56	87.81	74.21	87.04	0.03	0.02	0.01	1.10
BDSX	BIODESIX INC	$0.54	198,033	-15.73%	0.54	0.56	0.71	0.97	1.30	41.19	45.03	43.42	86.03	83.38	-0.05	-0.06	0.01	0.96
ICLR	ICON PLC	$149.31	3,623,707	202.93%	143.04	148.26	171.09	188.11	235.71	43.83	55.09	47.91	97.81	98.16	-8.03	-9.70	1.67	1.02
ADVB	ADVANCED BIOMED INC	$2.00	30,585	20.47%	1.86	2.25	N/A	N/A	N/A	45.55	36.37	25.38	76.60	50.09	N/A	N/A	N/A	1.31
GRAL	GRAIL INC	$36.81	1,504,512	16.09%	31.79	27.87	32.09	28.14	21.52	65.32	85.00	89.45	93.82	96.38	1.90	0.20	1.70	2.12
GH	GUARDANT HEALTH INC	$49.53	2,254,089	30.42%	46.03	44.22	43.71	41.49	34.29	63.11	92.01	92.51	98.35	98.90	1.26	0.64	0.62	1.57
STIM	NEURONETICS INC	$4.43	340,029	-31.94%	4.10	3.91	4.30	3.23	2.17	59.06	94.33	94.01	95.68	98.19	0.07	-0.03	0.09	1.43
EXAS	EXACT SCIENCES CORP	$44.79	2,180,670	72.51%	44.03	43.86	45.59	51.14	55.79	50.50	81.36	81.72	91.18	95.50	-0.19	-0.60	0.41	1.26
APDN	APPLIED DNA SCIENCES INC	$0.90	641,909	88.31%	0.85	1.08	3.33	6.42	20.05	24.50	19.66	16.26	94.53	90.56	-0.65	-0.82	0.17	0.68
LAB	STANDARD BIOTOOLS INC	$1.16	717,743	14.32%	1.19	1.15	1.16	1.45	1.69	48.87	52.84	59.88	42.11	58.39	0.01	-0.00	0.01	1.28
OCX	ONCOCYTE CORP	$3.12	19,461	-19.45%	3.05	2.96	3.13	2.67	2.85	52.09	70.87	79.00	71.50	86.79	0.03	-0.02	0.05	1.00
PSNL	PERSONALIS INC	$3.80	551,970	28.71%	3.52	3.39	3.81	4.46	4.50	55.87	90.72	92.24	94.10	96.84	-0.00	-0.11	0.11	2.04
RDNT	RADNET INC	$52.07	478,460	3.53%	50.17	50.68	51.97	60.82	64.25	53.31	56.34	52.82	72.94	61.85	-0.41	-0.67	0.26	1.30
NOTV	INOTIV INC	$1.97	303,246	15.64%	1.78	2.01	2.62	3.50	2.74	46.04	45.91	44.31	65.91	61.91	-0.23	-0.29	0.06	1.85
SERA	SERA PROGNOSTICS INC	$2.98	141,692	46.21%	3.28	3.30	3.77	5.32	6.31	32.89	12.02	29.52	11.58	37.89	-0.21	-0.21	0.00	0.75
ACRS	ACLARIS THERAPEUTICS INC	$1.33	425,528	-40.54%	1.21	1.26	1.59	2.17	1.91	47.18	75.27	66.65	97.76	99.25	-0.09	-0.14	0.05	1.18
NEOG	NEOGEN CORP	$5.03	4,687,144	24.44%	4.88	5.91	8.08	9.96	12.87	30.73	39.23	32.03	95.72	94.62	-0.99	-1.08	0.09	0.77
VNRX	VOLITIONRX LTD	$0.51	347,540	167.56%	0.49	0.50	0.54	0.58	0.62	49.31	28.12	29.51	75.59	74.59	-0.02	-0.02	0.00	0.79
TRIB	TRINITY BIOTECH PLC	$0.80	143,287	23.80%	0.63	0.59	0.66	0.77	1.35	69.97	93.26	93.37	100.00	100.00	0.02	-0.02	0.03	0.63
CHEK	CHECK-CAP LTD	$0.72	21,387	-35.24%	0.69	0.70	0.77	0.91	1.22	48.46	40.40	39.22	75.11	81.97	-0.02	-0.04	0.01	0.81
STRR	STAR EQUITY HOLDINGS INC	$2.00	32,944	1,882.19%	1.95	2.03	2.18	2.23	3.13	45.87	76.00	66.09	89.64	94.34	-0.06	-0.08	0.02	0.76
ISPC	ISPECIMEN INC	$1.23	14,036	54.11%	1.22	1.24	1.39	2.06	3.53	46.94	21.02	22.63	45.58	50.43	-0.05	-0.06	0.01	0.78
BNR	BURNING ROCK BIOTECH LTD	$2.89	11,205	24.89%	2.89	3.24	4.77	5.75	5.23	25.38	10.43	10.85	88.47	78.10	-0.55	-0.62	0.07	0.93
PMAX	POWELL MAX LTD	$0.41	801,561	-96.79%	0.36	0.36	0.37	0.99	N/A	56.40	76.90	74.45	94.64	92.00	-0.00	-0.02	0.02	1.20
XWEL	XWELL INC	$0.82	7,461	-21.06%	0.77	0.82	0.96	1.16	1.47	45.72	23.85	22.34	91.38	89.53	-0.06	-0.07	0.01	0.81
BIAF	BIOAFFINITY TECHNOLOGIES INC	$0.45	324,271	148.15%	0.49	0.59	0.50	0.68	1.22	44.94	9.26	10.89	5.10	11.71	-0.01	0.00	-0.01	1.26
NDRA	ENDRA LIFE SCIENCES INC	$6.00	478,504	91.73%	3.81	3.89	4.04	4.72	22.48	66.78	58.84	38.52	74.83	58.96	0.09	-0.11	0.20	1.14
MMA	MIXED MARTIAL ARTS GROUP LTD	$0.84	44,973	-33.05%	0.90	0.91	0.85	1.06	1.75	47.06	2.42	3.94	2.17	4.49	-0.00	0.02	-0.02	0.73
PRPH	PROPHASE LABS INC	$0.34	336,288	29.44%	0.33	0.32	0.39	0.47	1.38	49.17	70.40	60.54	85.39	90.44	-0.01	-0.02	0.01	0.82
PRE	PRENETICS GLOBAL LTD	$5.25	11,534	20.03%	4.56	4.14	4.42	4.95	4.92	72.71	89.82	87.21	98.09	98.19	0.21	0.02	0.19	0.34
MDXH	MDXHEALTH SA	$1.74	9,672	-80.16%	1.67	1.57	1.61	1.85	2.12	61.65	88.70	91.40	92.85	97.62	0.05	0.01	0.03	0.44
PRPO	PRECIPIO INC	$5.75	8,474	217.97%	5.99	5.69	6.68	6.42	6.25	47.14	34.78	43.36	43.36	60.62	-0.08	-0.18	0.10	0.61

Diagnostic & Research Stocks FAQ

What are the best diagnostic & research stocks to buy right now in May 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. Illumina (NASDAQ:ILMN)

Illumina (NASDAQ:ILMN) is the #1 top diagnostic & research stock out of 58 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 Illumina (NASDAQ:ILMN) is: Value: B, Growth: A, Momentum: F, Sentiment: C, Safety: B, Financials: B, and AI: C.

Illumina (NASDAQ:ILMN) has a Due Diligence Score of 16, which is -11 points lower than the diagnostic & research industry average of 27. Although this number is below the industry average, our proven quant model rates ILMN as a "A".

ILMN passed 5 out of 33 due diligence checks and has weak fundamentals. Illumina has seen its stock lose -38.19% over the past year, underperforming other diagnostic & research stocks by -12 percentage points.

Illumina has an average 1 year price target of $129.17, an upside of 67.53% from Illumina's current stock price of $77.10.

Illumina stock has a consensus Buy recommendation according to Wall Street analysts. Of the 12 analysts covering Illumina, 33.33% have issued a Strong Buy rating, 8.33% have issued a Buy, 50% have issued a hold, while 0% have issued a Sell rating, and 8.33% have issued a Strong Sell.

2. Qiagen Nv (NYSE:QGEN)

Qiagen Nv (NYSE:QGEN) is the #2 top diagnostic & research stock out of 58 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 Qiagen Nv (NYSE:QGEN) is: Value: B, Growth: C, Momentum: C, Sentiment: C, Safety: C, Financials: B, and AI: C.

Qiagen Nv (NYSE:QGEN) has a Due Diligence Score of 23, which is -4 points lower than the diagnostic & research industry average of 27. Although this number is below the industry average, our proven quant model rates QGEN as a "B".

QGEN passed 9 out of 38 due diligence checks and has weak fundamentals. Qiagen Nv has seen its stock return 0.78% over the past year, overperforming other diagnostic & research stocks by 27 percentage points.

Qiagen Nv has an average 1 year price target of $48.25, an upside of 13.18% from Qiagen Nv's current stock price of $42.63.

Qiagen Nv stock has a consensus Buy recommendation according to Wall Street analysts. Of the 4 analysts covering Qiagen Nv, 25% have issued a Strong Buy rating, 0% have issued a Buy, 75% have issued a hold, while 0% have issued a Sell rating, and 0% have issued a Strong Sell.

3. Labcorp Holdings (NYSE:LH)

Labcorp Holdings (NYSE:LH) is the #3 top diagnostic & research stock out of 58 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 Labcorp Holdings (NYSE:LH) is: Value: C, Growth: B, Momentum: C, Sentiment: C, Safety: C, Financials: C, and AI: C.

Labcorp Holdings (NYSE:LH) has a Due Diligence Score of 51, which is 24 points higher than the diagnostic & research industry average of 27.

LH passed 19 out of 38 due diligence checks and has strong fundamentals. Labcorp Holdings has seen its stock return 17.75% over the past year, overperforming other diagnostic & research stocks by 44 percentage points.

Labcorp Holdings has an average 1 year price target of $273.20, an upside of 13.63% from Labcorp Holdings's current stock price of $240.42.

Labcorp Holdings stock has a consensus Strong Buy recommendation according to Wall Street analysts. Of the 10 analysts covering Labcorp Holdings, 70% have issued a Strong Buy rating, 10% 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 5 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 1.29%, which is 1 percentage points higher than the diagnostic & research industry average of 0.59%. 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 38.1% indicates that its dividend yield is sustainable for the long-term.

2. Agilent Technologies (NYSE:A)

Agilent Technologies (NYSE:A) has an annual dividend yield of 0.67%, which is the same as the diagnostic & research industry average of 0.59%. 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 21.9% indicates that its dividend yield is sustainable for the long-term.

3. Labcorp Holdings (NYSE:LH)

Labcorp Holdings (NYSE:LH) has an annual dividend yield of 0.6%, which is the same as the diagnostic & research industry average of 0.59%. 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 33% indicates that its dividend yield is sustainable for the long-term.

Why are diagnostic & research stocks up?

Diagnostic & research stocks were up 1.09% in the last day, and up 5.02% over the last week.

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

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. Icon (NASDAQ:ICLR)

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

Icon has a valuation score of 57, which is 39 points higher than the diagnostic & research industry average of 18. It passed 4 out of 7 valuation due diligence checks.

Icon's stock has dropped -50.91% in the past year. It has underperformed other stocks in the diagnostic & research industry by -25 percentage points.

2. Charles River Laboratories International (NYSE:CRL)

Charles River Laboratories International (NYSE:CRL) 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.

Charles River Laboratories International has a valuation score of 14, which is -4 points higher than the diagnostic & research industry average of 18. It passed 1 out of 7 valuation due diligence checks. Although this number is below the industry average, our proven quant model rates CRL a Valuation Rating of "B".

Charles River Laboratories International's stock has dropped -49.47% in the past year. It has underperformed other stocks in the diagnostic & research industry by -24 percentage points.

3. Qiagen Nv (NYSE:QGEN)

Qiagen Nv (NYSE:QGEN) 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.

Qiagen Nv has a valuation score of 14, which is -4 points higher than the diagnostic & research industry average of 18. It passed 1 out of 7 valuation due diligence checks. Although this number is below the industry average, our proven quant model rates QGEN a Valuation Rating of "B".

Qiagen Nv's stock has gained 0.78% in the past year. It has overperformed other stocks in the diagnostic & research industry by 27 percentage points.

Are diagnostic & research stocks a good buy now?

54.76% of diagnostic & research stocks rated by analysts are a strong buy right now. On average, analysts expect diagnostic & research stocks to rise by 26.47% over the next year.

2.33% of diagnostic & research stocks have a Zen Rating of A (Strong Buy), 13.95% of diagnostic & research stocks are rated B (Buy), 74.42% are rated C (Hold), 9.3% are rated D (Sell), and 0% 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 38.53x.

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.

Diagnostic & Research Stocks FAQ

1. Illumina (NASDAQ:ILMN)

2. Qiagen Nv (NYSE:QGEN)

3. Labcorp Holdings (NYSE:LH)

1. Quest Diagnostics (NYSE:DGX)

2. Agilent Technologies (NYSE:A)

3. Labcorp Holdings (NYSE:LH)

1. Icon (NASDAQ:ICLR)

2. Charles River Laboratories International (NYSE:CRL)

3. Qiagen Nv (NYSE:QGEN)

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