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 51st 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	$77.60	1,533,531	6.08%	75.42	75.12	82.31	107.32	120.49	47.93	80.34	80.56	97.06	97.32	-1.95	-3.17	1.21	1.22
QGEN	QIAGEN NV	$42.75	1,008,430	7.65%	42.03	41.27	40.10	42.18	43.11	58.32	74.97	73.74	74.64	75.89	0.69	0.55	0.15	0.57
MTD	METTLER TOLEDO INTERNATIONAL INC	$1,070.57	171,202	-18.79%	1,037.52	1,045.05	1,162.98	1,223.92	1,299.62	47.61	76.84	76.92	96.04	95.77	-29.40	-42.23	12.83	1.08
CDNA	CAREDX INC	$16.88	2,013,335	81.78%	17.86	18.03	19.07	21.00	23.41	39.71	31.56	46.29	47.81	68.88	-0.34	-0.37	0.02	1.63
WAT	WATERS CORP	$347.73	585,353	110.54%	333.09	331.54	357.40	373.76	359.31	52.89	81.45	77.80	99.65	98.53	-4.94	-9.02	4.09	0.94
A	AGILENT TECHNOLOGIES INC	$107.60	1,434,659	19.37%	104.85	104.90	116.69	129.10	133.41	46.74	82.34	79.84	100.00	99.14	-2.95	-4.36	1.40	0.97
DHR	DANAHER CORP	$199.33	3,708,349	-0.31%	193.86	191.15	201.69	215.24	238.04	53.08	78.46	76.82	98.73	98.73	-1.33	-3.29	1.96	0.87
IDXX	IDEXX LABORATORIES INC	$432.65	1,400,132	94.88%	425.08	410.00	422.60	427.45	447.46	56.72	90.61	92.93	86.66	91.38	5.14	0.36	4.77	1.14
LH	LABCORP HOLDINGS INC	$241.01	983,853	-56.63%	226.22	226.14	236.27	237.04	231.17	60.39	95.20	91.18	100.00	99.79	-0.21	-3.00	2.79	0.63
DGX	QUEST DIAGNOSTICS INC	$178.22	1,606,424	22.89%	171.96	168.68	169.88	163.37	158.26	63.77	96.82	94.72	98.66	95.98	2.55	1.05	1.50	0.39
CRL	CHARLES RIVER LABORATORIES INTERNATIONAL INC	$118.62	1,347,680	0.02%	111.03	117.32	146.37	161.55	181.70	43.59	54.12	51.05	99.58	98.87	-9.62	-12.24	2.61	1.20
CSTL	CASTLE BIOSCIENCES INC	$20.05	394,176	22.24%	20.87	20.22	21.04	24.53	26.58	45.48	37.86	46.69	26.24	41.58	-0.14	-0.17	0.03	1.42
IQV	IQVIA HOLDINGS INC	$155.07	2,186,822	72.29%	148.39	151.20	171.91	186.17	207.65	46.57	80.14	68.09	99.39	99.10	-6.29	-8.40	2.11	1.11
RVTY	REVVITY INC	$93.43	1,882,724	6.19%	93.39	95.33	104.84	111.01	115.16	41.32	44.54	45.96	89.47	94.38	-3.26	-3.87	0.60	0.98
MEDP	MEDPACE HOLDINGS INC	$308.39	364,281	-25.79%	296.89	296.58	314.51	329.13	343.50	52.68	92.83	88.74	96.52	94.39	-3.34	-6.12	2.77	1.19
MYGN	MYRIAD GENETICS INC	$7.41	4,217,999	159.54%	7.46	7.81	9.51	11.57	17.86	33.48	16.39	16.17	67.91	63.85	-0.62	-0.69	0.07	1.37
XGN	EXAGEN INC	$6.23	327,325	1.24%	5.58	4.92	4.11	4.23	3.54	67.78	89.11	94.05	82.60	94.20	0.66	0.45	0.21	1.08
FONR	FONAR CORP	$12.55	16,668	53.13%	12.22	12.49	13.49	14.51	15.51	44.78	55.93	30.17	100.00	85.64	-0.38	-0.47	0.09	0.51
NTRA	NATERA INC	$150.93	985,574	5.78%	150.07	146.52	148.48	158.40	141.95	52.20	86.03	91.36	84.00	92.34	1.31	0.20	1.11	1.46
FLGT	FULGENT GENETICS INC	$17.35	582,827	39.75%	18.34	18.05	17.32	17.67	19.50	44.41	42.90	63.51	11.88	34.01	0.28	0.36	-0.09	0.96
TWST	TWIST BIOSCIENCE CORP	$38.32	922,871	-2.12%	38.26	38.08	39.78	44.27	44.96	47.67	74.21	80.36	83.71	92.52	-0.36	-0.70	0.34	2.25
MYNZ	MAINZ BIOMED NV	$3.43	360,904	-60.66%	3.33	3.29	4.19	4.85	8.43	46.19	42.08	58.50	80.77	90.57	-0.19	-0.30	0.11	0.81
SHC	SOTERA HEALTH CO	$11.50	1,451,796	57.92%	10.93	10.77	11.61	12.51	13.77	55.39	92.64	89.83	99.30	97.70	-0.09	-0.25	0.17	1.17
TMO	THERMO FISHER SCIENTIFIC INC	$429.00	2,833,342	16.25%	428.13	437.25	487.03	517.25	549.74	38.60	28.64	27.89	89.72	86.55	-18.61	-20.71	2.11	0.82
NEO	NEOGENOMICS INC	$6.40	9,762,899	-25.88%	9.17	9.11	9.72	12.70	14.06	25.96	29.85	57.91	27.51	60.84	-0.47	-0.26	-0.21	1.53
DRIO	DARIOHEALTH CORP	$0.72	45,608	-57.49%	0.76	0.69	0.68	0.71	0.83	51.38	64.49	77.36	60.79	75.15	0.03	0.03	0.00	1.09
ICLR	ICON PLC	$151.44	2,767,128	-23.65%	143.66	147.50	170.35	187.49	234.79	46.33	72.67	58.58	98.95	98.19	-7.03	-9.17	2.14	1.02
BDSX	BIODESIX INC	$0.53	148,709	-24.98%	0.53	0.56	0.70	0.96	1.30	41.09	46.28	46.52	84.50	87.96	-0.05	-0.06	0.01	0.96
ADVB	ADVANCED BIOMED INC	$1.92	108,839	255.86%	1.87	2.16	N/A	N/A	N/A	43.72	47.60	35.66	94.01	73.58	N/A	N/A	N/A	1.31
GRAL	GRAIL INC	$34.50	1,022,064	-32.58%	32.65	28.34	31.84	28.29	21.62	59.00	75.50	83.82	84.69	91.71	1.95	0.55	1.40	2.11
OPK	OPKO HEALTH INC	$1.38	2,555,666	-6.21%	1.42	1.45	1.64	1.59	1.55	34.90	26.48	30.68	67.40	73.35	-0.07	-0.07	0.00	1.22
GH	GUARDANT HEALTH INC	$47.23	3,323,814	35.57%	46.27	44.45	43.69	41.61	34.37	55.95	82.70	89.29	84.48	93.73	1.26	0.76	0.49	1.57
STIM	NEURONETICS INC	$4.38	627,600	78.40%	4.17	3.94	4.29	3.26	2.18	57.54	88.98	92.56	89.08	94.55	0.08	-0.01	0.09	1.42
EXAS	EXACT SCIENCES CORP	$45.64	2,079,603	-5.34%	44.23	43.97	45.51	50.99	55.78	53.47	81.70	82.94	91.77	94.02	-0.08	-0.50	0.42	1.26
APDN	APPLIED DNA SCIENCES INC	$0.88	176,820	-73.20%	0.85	1.04	3.18	6.33	19.95	24.23	23.98	19.53	98.35	94.54	-0.61	-0.78	0.17	0.68
LAB	STANDARD BIOTOOLS INC	$1.11	911,295	26.97%	1.18	1.15	1.16	1.45	1.68	44.57	44.58	52.55	26.08	43.33	-0.00	-0.00	0.00	1.38
OCX	ONCOCYTE CORP	$3.08	61,578	209.34%	3.07	2.97	3.14	2.68	2.85	50.73	54.25	69.83	52.17	70.85	0.03	-0.01	0.03	1.00
PSNL	PERSONALIS INC	$3.78	544,557	-1.43%	3.57	3.41	3.77	4.46	4.51	55.29	87.82	90.30	90.73	93.75	0.02	-0.08	0.10	2.04
RDNT	RADNET INC	$52.38	613,774	28.28%	50.10	50.77	51.79	60.53	64.20	54.23	61.56	56.97	87.34	74.33	-0.23	-0.58	0.35	1.29
NOTV	INOTIV INC	$1.97	280,813	-9.34%	1.80	1.99	2.58	3.48	2.74	46.04	49.06	46.63	79.36	69.44	-0.21	-0.28	0.07	1.86
SERA	SERA PROGNOSTICS INC	$2.94	110,929	-21.72%	3.25	3.27	3.75	5.28	6.29	32.01	5.93	15.49	0.90	16.33	-0.22	-0.21	-0.01	0.75
ACRS	ACLARIS THERAPEUTICS INC	$1.38	440,602	2.07%	1.24	1.26	1.57	2.15	1.91	51.02	74.14	73.78	97.76	98.51	-0.08	-0.12	0.05	1.18
NEOG	NEOGEN CORP	$5.05	6,215,308	32.60%	4.89	5.75	7.98	9.88	12.81	31.13	45.78	38.13	93.79	96.00	-0.94	-1.05	0.11	0.77
VNRX	VOLITIONRX LTD	$0.48	399,223	14.47%	0.49	0.50	0.54	0.58	0.62	44.20	27.90	28.29	63.86	70.82	-0.02	-0.02	0.00	0.80
PRPO	PRECIPIO INC	$6.08	3,525	-58.41%	6.04	5.71	6.65	6.42	6.26	50.00	31.17	35.99	36.13	46.32	-0.07	-0.16	0.09	0.61
TRIB	TRINITY BIOTECH PLC	$0.78	48,482	-66.86%	0.64	0.60	0.66	0.77	1.34	67.21	88.46	92.63	97.18	99.06	0.02	-0.01	0.03	0.63
STRR	STAR EQUITY HOLDINGS INC	$2.16	61,610	86.96%	1.97	2.02	2.18	2.23	3.11	54.02	73.54	72.99	89.64	93.07	-0.05	-0.07	0.03	0.75
MDXH	MDXHEALTH SA	$1.73	29,655	206.61%	1.68	1.59	1.61	1.84	2.11	60.49	80.72	87.95	82.17	91.67	0.05	0.02	0.03	0.44
ISPC	ISPECIMEN INC	$1.27	24,903	73.70%	1.23	1.24	1.37	2.03	3.51	49.21	28.66	24.22	59.72	52.26	-0.04	-0.06	0.02	0.78
MMA	MIXED MARTIAL ARTS GROUP LTD	$0.86	18,843	-59.10%	0.89	0.92	0.84	1.05	1.73	48.09	2.71	3.04	3.73	3.50	-0.01	0.01	-0.02	0.73
BIAF	BIOAFFINITY TECHNOLOGIES INC	$0.47	54,253	-83.29%	0.49	0.56	0.49	0.68	1.21	46.78	13.97	11.36	9.91	9.31	-0.01	-0.00	-0.01	1.26
PMAX	POWELL MAX LTD	$0.39	291,002	-63.96%	0.36	0.36	0.37	0.96	N/A	53.20	63.34	73.96	82.77	92.47	-0.00	-0.01	0.01	1.20
XWEL	XWELL INC	$0.76	11,687	27.25%	0.78	0.81	0.95	1.16	1.47	40.60	21.42	22.44	79.21	87.22	-0.06	-0.06	0.01	0.82
CHEK	CHECK-CAP LTD	$0.77	51,304	139.88%	0.70	0.70	0.77	0.91	1.22	54.41	36.72	39.43	70.24	78.33	-0.02	-0.03	0.02	0.81
BNR	BURNING ROCK BIOTECH LTD	$2.92	13,708	22.34%	2.89	3.17	4.69	5.72	5.21	26.84	14.40	11.81	100.00	89.44	-0.52	-0.60	0.08	0.93
PRPH	PROPHASE LABS INC	$0.35	678,695	100.53%	0.33	0.31	0.39	0.47	1.36	50.39	76.48	69.13	78.62	84.81	-0.01	-0.02	0.01	0.83
PRE	PRENETICS GLOBAL LTD	$5.23	14,873	28.95%	4.70	4.21	4.42	4.96	4.91	71.96	93.08	90.07	99.06	98.41	0.25	0.07	0.18	0.34
NDRA	ENDRA LIFE SCIENCES INC	$6.01	407,072	-16.07%	4.10	4.00	4.07	4.73	21.71	66.84	71.93	54.46	89.77	72.88	0.23	-0.04	0.28	1.14

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 -36.94% 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 66.45% from Illumina's current stock price of $77.60.

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 A. Stocks with a rating of A have had an average return of +32.52% 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 "A".

QGEN passed 9 out of 38 due diligence checks and has weak fundamentals. Qiagen Nv has seen its stock return 0.99% over the past year, overperforming other diagnostic & research stocks by 26 percentage points.

Qiagen Nv has an average 1 year price target of $48.25, an upside of 12.87% from Qiagen Nv's current stock price of $42.75.

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. Mettler Toledo International (NYSE:MTD)

Mettler Toledo International (NYSE:MTD) 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 Mettler Toledo International (NYSE:MTD) is: Value: C, Growth: C, Momentum: C, Sentiment: C, Safety: A, Financials: A, and AI: B.

Mettler Toledo International (NYSE:MTD) has a Due Diligence Score of 39, which is 12 points higher than the diagnostic & research industry average of 27.

MTD passed 13 out of 33 due diligence checks and has average fundamentals. Mettler Toledo International has seen its stock lose -12.94% over the past year, overperforming other diagnostic & research stocks by 12 percentage points.

Mettler Toledo International has an average 1 year price target of $1,296.80, an upside of 21.13% from Mettler Toledo International's current stock price of $1,070.57.

Mettler Toledo International stock has a consensus Buy recommendation according to Wall Street analysts. Of the 5 analysts covering Mettler Toledo International, 40% have issued a Strong Buy rating, 20% have issued a Buy, 40% 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 0.13% in the last day, and up 2.75% over the last week. Icon was the among the top gainers in the diagnostics & research industry, gaining 1.43% yesterday.

Icon shares are trading lower after the company reported worse-than-expected Q1 sales results. Also, the company lowered its FY25 guidance.

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 -49.16% in the past year. It has underperformed other stocks in the diagnostic & research industry by -24 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 -48.2% in the past year. It has underperformed other stocks in the diagnostic & research industry by -23 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 0.99% in the past year. It has overperformed other stocks in the diagnostic & research industry by 26 percentage points.

Are diagnostic & research stocks a good buy now?

51.22% of diagnostic & research stocks rated by analysts are a strong buy right now. On average, analysts expect diagnostic & research stocks to rise by 26.2% over the next year.

4.65% of diagnostic & research stocks have a Zen Rating of A (Strong Buy), 9.3% of diagnostic & research stocks are rated B (Buy), 76.74% 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 39.05x.

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.