Sectors & Industries HealthcareDiagnostics & Research
Best Diagnostic & Research Stocks to Buy Now (2026)
Top diagnostic & research stocks in 2026 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 43rd 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	$130.32	1,195,000	-11.48%	126.13	124.74	124.22	130.60	115.99	57.21	58.13	49.64	71.61	62.66	0.44	-0.14	0.58	1.25
SHC	SOTERA HEALTH CO	$15.93	1,854,000	-29.67%	15.12	14.36	15.51	16.58	15.64	64.70	97.99	97.29	100.00	100.00	0.12	-0.19	0.31	1.18
TMO	THERMO FISHER SCIENTIFIC INC	$527.22	2,572,000	40.62%	499.67	489.01	506.10	549.40	522.03	64.15	87.39	83.97	91.75	89.77	1.52	-4.52	6.05	0.87
BLLN	BILLIONTOONE INC	$82.79	390,000	-1.27%	83.23	78.26	79.21	88.10	N/A	53.53	49.76	54.82	41.34	48.82	1.77	1.10	0.67	1.93
MTD	METTLER TOLEDO INTERNATIONAL INC	$1,341.53	122,000	52.50%	1,300.20	1,265.72	1,302.75	1,366.52	1,329.84	62.42	89.91	93.25	93.87	95.13	13.45	-1.59	15.04	1.13
IDXX	IDEXX LABORATORIES INC	$584.05	413,000	-10.02%	574.60	574.02	606.59	655.44	639.00	49.13	43.92	47.66	67.17	69.29	-8.75	-12.65	3.90	1.18
A	AGILENT TECHNOLOGIES INC	$120.39	2,552,000	96.31%	115.80	114.01	119.30	130.92	129.74	60.14	80.77	74.72	92.38	88.67	-0.35	-1.52	1.18	1.02
NTRA	NATERA INC	$214.64	1,734,000	48.84%	204.87	200.03	204.12	219.50	193.94	57.54	56.90	52.81	69.01	65.88	0.64	-1.04	1.68	1.47
PRPO	PRECIPIO INC	$28.50	15,100	-12.21%	26.91	26.95	25.37	24.75	20.86	58.55	78.96	75.83	83.21	80.69	0.56	0.41	0.15	0.67
BNR	BURNING ROCK BIOTECH LTD	$19.89	23,000	-56.60%	16.72	17.56	23.24	23.20	15.73	53.52	41.62	20.71	67.97	40.30	-1.44	-2.00	0.56	1.14
DHR	DANAHER CORP	$198.61	3,333,000	-31.05%	192.79	190.74	200.84	215.45	209.64	55.28	74.99	70.07	87.62	83.60	-1.49	-3.34	1.85	0.92
MEDP	MEDPACE HOLDINGS INC	$520.00	305,000	67.58%	500.94	479.77	474.79	529.56	503.29	63.21	71.10	68.67	63.65	64.13	10.00	5.00	5.00	1.21
CAI	CARIS LIFE SCIENCES INC	$20.19	1,972,000	0.51%	19.01	18.68	19.54	23.08	27.01	56.35	73.80	69.92	79.80	78.62	-0.10	-0.35	0.25	1.55
IQV	IQVIA HOLDINGS INC	$175.28	919,000	-16.68%	171.37	168.99	173.51	201.80	196.61	54.58	56.63	48.37	78.11	68.44	-1.00	-2.32	1.32	1.14
NEOG	NEOGEN CORP	$9.61	2,962,000	-18.49%	9.62	9.26	10.04	8.82	7.20	50.66	34.97	47.39	43.28	57.59	-0.04	-0.11	0.07	0.82
LH	LABCORP HOLDINGS INC	$268.87	438,000	5.29%	269.89	267.76	273.86	267.52	268.09	49.28	31.33	40.76	27.40	41.19	-1.03	-1.11	0.08	0.63
CRL	CHARLES RIVER LABORATORIES INTERNATIONAL INC	$179.31	550,000	14.58%	174.30	166.38	170.67	184.97	174.78	60.00	85.91	84.16	99.79	99.30	2.11	-0.14	2.25	1.28
RVTY	REVVITY INC	$93.51	601,000	56.51%	89.74	87.98	93.25	98.27	95.00	59.00	83.71	77.44	96.66	96.66	-0.30	-1.47	1.17	1.05
WAT	WATERS CORP	$330.98	527,000	-41.96%	312.52	305.25	317.59	353.66	336.30	66.81	94.89	91.39	100.00	99.26	2.29	-2.65	4.94	0.98
BDSX	BIODESIX INC	$12.14	74,600	166.43%	14.04	14.61	14.19	11.05	9.28	34.82	9.15	12.68	4.72	5.58	-0.47	-0.09	-0.38	0.85
CDNA	CAREDX INC	$17.63	580,000	20.33%	17.42	17.40	18.26	18.71	16.67	50.30	37.66	31.32	42.73	35.21	-0.29	-0.30	0.02	1.61
MYGN	MYRIAD GENETICS INC	$4.91	1,005,000	2.24%	4.63	4.61	4.76	5.69	6.07	55.19	52.74	42.05	67.76	57.27	-0.06	-0.09	0.04	1.36
DGX	QUEST DIAGNOSTICS INC	$194.16	885,000	-1.56%	196.27	196.24	199.65	190.73	184.94	43.63	26.17	32.03	22.34	37.39	-1.20	-0.82	-0.39	0.37
NEO	NEOGENOMICS INC	$8.35	1,787,000	-18.55%	7.95	7.89	9.23	10.69	9.34	50.63	60.99	56.70	85.80	82.24	-0.30	-0.46	0.16	1.60
CSTL	CASTLE BIOSCIENCES INC	$24.37	183,000	-24.07%	24.37	24.70	28.17	33.79	28.11	41.17	38.58	30.43	65.14	57.23	-1.22	-1.43	0.21	1.47
ICLR	ICON PLC	$113.06	894,000	-5.99%	109.65	105.19	111.65	146.92	158.58	56.19	70.04	60.49	75.09	62.44	-0.54	-2.19	1.66	1.14
QGEN	QIAGEN NV	$41.76	1,190,000	5.31%	40.92	40.49	44.89	46.39	46.89	48.84	83.52	79.85	95.72	95.27	-0.82	-1.33	0.52	0.61
RDNT	RADNET INC	$57.76	565,000	15.54%	55.70	58.02	63.89	69.73	69.39	44.60	40.93	34.03	75.72	62.00	-2.41	-2.81	0.40	1.28
TWST	TWIST BIOSCIENCE CORP	$57.41	2,917,000	197.05%	50.43	47.90	47.95	41.28	36.00	66.35	67.53	61.34	73.56	67.89	1.62	0.90	0.72	2.36
LAB	STANDARD BIOTOOLS INC	$0.89	10,081,000	72.86%	0.91	0.93	1.05	1.25	1.27	34.61	11.54	19.23	43.94	55.70	-0.05	-0.05	0.01	1.49
QUCY	MAINZ BIOMED NV	$0.61	1,512,000	397.37%	0.49	0.50	0.68	0.91	1.26	53.53	66.99	53.74	86.07	80.90	-0.06	-0.08	0.02	0.93
BIAF	BIOAFFINITY TECHNOLOGIES INC	$2.81	566,000	15.75%	3.66	3.62	2.11	1.74	3.93	46.84	11.34	21.30	0.36	0.76	0.35	0.55	-0.20	1.48
PRE	PRENETICS GLOBAL LTD	$18.01	105,000	22.09%	18.88	19.88	19.28	17.57	14.08	43.21	11.91	10.86	14.34	11.09	-0.32	0.03	-0.36	0.34
PSNL	PERSONALIS INC	$6.68	955,000	-26.88%	6.37	6.76	7.70	8.43	7.55	45.81	21.76	15.69	44.07	24.94	-0.43	-0.46	0.03	2.27
STIM	NEURONETICS INC	$1.43	1,215,000	-34.92%	1.49	1.44	1.43	1.53	2.39	49.65	30.33	30.78	20.70	20.47	0.00	0.01	-0.00	1.39
MDXH	MDXHEALTH SA	$2.27	244,000	-11.91%	2.13	2.54	3.09	3.29	3.40	34.12	14.62	9.74	60.97	35.03	-0.32	-0.32	-0.00	0.61
GH	GUARDANT HEALTH INC	$86.40	1,807,000	-37.54%	88.75	87.59	94.03	100.06	81.15	46.47	32.12	31.25	35.58	40.60	-2.04	-1.95	-0.09	1.66
OPK	OPKO HEALTH INC	$1.17	1,594,000	-42.58%	1.16	1.16	1.19	1.25	1.33	50.07	57.33	59.11	75.29	78.23	-0.01	-0.01	0.01	1.27
XWEL	XWELL INC	$1.15	77,000	-11.49%	1.23	1.25	1.02	0.81	0.92	47.86	28.67	35.11	20.35	27.43	0.02	0.05	-0.03	0.75
FLGT	FULGENT GENETICS INC	$16.02	505,000	-15.55%	15.81	15.83	18.38	23.08	22.42	46.86	37.69	24.38	49.06	31.97	-0.68	-0.86	0.18	0.97
XGN	EXAGEN INC	$3.04	257,000	83.57%	3.04	2.94	3.23	4.74	7.13	47.24	60.34	65.02	85.47	89.79	-0.09	-0.14	0.05	1.09
GRAL	GRAIL INC	$50.49	557,000	2.01%	50.37	49.62	62.83	80.17	66.26	46.56	35.34	28.68	45.24	40.40	-2.93	-3.86	0.93	2.26
ACRS	ACLARIS THERAPEUTICS INC	$3.92	2,684,000	133.59%	3.95	3.78	3.52	3.30	2.59	55.46	72.55	77.45	46.97	57.09	0.14	0.13	0.01	0.99
IMDX	INSIGHT MOLECULAR DIAGNOSTICS INC	$3.61	834,000	253.39%	3.30	3.62	4.91	5.56	4.66	45.32	40.98	36.42	83.37	78.44	-0.49	-0.55	0.06	1.01
SERA	SERA PROGNOSTICS INC	$2.14	17,100	205.36%	2.11	2.01	2.21	2.75	2.86	51.34	54.59	57.01	60.38	62.32	-0.02	-0.05	0.03	0.87
NOTV	INOTIV INC	$0.25	493,000	-15.29%	0.25	0.28	0.32	0.50	1.06	38.92	22.11	13.92	39.15	20.50	-0.03	-0.03	-0.00	2.35
DRIO	DARIOHEALTH CORP	$7.56	8,200	-71.72%	7.46	7.81	9.38	10.62	11.40	43.08	35.32	30.55	80.14	67.63	-0.62	-0.67	0.05	1.10
MBAI	CHECK-CAP LTD	$1.76	334,000	-39.71%	1.71	1.68	1.69	1.71	1.48	53.40	37.56	31.61	74.91	58.28	0.00	-0.01	0.01	1.05
BNBX	BNB PLUS CORP	$0.58	2,842,000	12,818.18%	0.62	0.68	0.77	1.45	2.69	30.59	8.50	7.13	12.14	5.25	-0.07	-0.07	-0.00	0.75
ISPC	ISPECIMEN INC	$0.11	18,971,000	-44.00%	0.14	0.16	0.23	0.31	0.68	29.74	5.41	5.19	0.95	8.38	-0.03	-0.03	-0.00	0.87
ADVB	ADVANCED BIOMED INC	$6.31	26,000	78.08%	5.70	4.99	4.80	5.98	7.98	64.90	71.88	73.44	86.73	91.79	0.47	0.23	0.24	0.79
TRIB	TRINITY BIOTECH PLC	$0.72	144,000	73.49%	0.64	0.64	0.70	0.80	0.91	57.10	88.98	84.08	96.42	96.13	-0.01	-0.02	0.02	0.63
NDRA	ENDRA LIFE SCIENCES INC	$4.96	6,500	22.64%	4.96	4.37	3.94	4.50	4.97	60.22	82.84	86.32	50.73	66.15	0.38	0.31	0.07	1.08
VNRX	VOLITIONRX LTD	$0.16	2,564,000	-45.68%	0.17	0.18	0.21	0.25	0.42	34.25	13.86	18.60	1.84	10.40	-0.01	-0.01	-0.00	0.68
FONR	FONAR CORP	$18.76	118,000	237.14%	18.63	18.55	18.55	17.43	16.45	71.00	99.13	99.02	100.00	98.61	0.07	0.05	0.02	0.38

Diagnostic & Research Stocks FAQ

What are the best diagnostic & research stocks to buy right now in Apr 2026?

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 55 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: C, Momentum: C, Sentiment: B, Safety: B, Financials: A, and AI: B.

Illumina (NASDAQ:ILMN) has a Due Diligence Score of 37, which is 9 points higher than the diagnostic & research industry average of 28.

ILMN passed 12 out of 33 due diligence checks and has average fundamentals. Illumina has seen its stock return 73.62% over the past year, overperforming other diagnostic & research stocks by 49 percentage points.

Illumina has an average 1 year price target of $138.60, an upside of 6.35% from Illumina's current stock price of $130.32.

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

2. Sotera Health Co (NASDAQ:SHC)

Sotera Health Co (NASDAQ:SHC) is the #2 top diagnostic & research stock out of 55 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 Sotera Health Co (NASDAQ:SHC) is: Value: C, Growth: C, Momentum: C, Sentiment: B, Safety: B, Financials: B, and AI: C.

Sotera Health Co (NASDAQ:SHC) has a Due Diligence Score of 33, which is 5 points higher than the diagnostic & research industry average of 28.

SHC passed 11 out of 33 due diligence checks and has average fundamentals. Sotera Health Co has seen its stock return 50% over the past year, overperforming other diagnostic & research stocks by 25 percentage points.

Sotera Health Co has an average 1 year price target of $21.00, an upside of 31.83% from Sotera Health Co's current stock price of $15.93.

Sotera Health Co stock has a consensus Strong Buy recommendation according to Wall Street analysts. Of the 5 analysts covering Sotera Health Co, 60% have issued a Strong Buy rating, 20% have issued a Buy, 20% have issued a hold, while 0% have issued a Sell rating, and 0% have issued a Strong Sell.

3. Thermo Fisher Scientific (NYSE:TMO)

Thermo Fisher Scientific (NYSE:TMO) is the #3 top diagnostic & research stock out of 55 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 Thermo Fisher Scientific (NYSE:TMO) is: Value: B, Growth: C, Momentum: C, Sentiment: C, Safety: A, Financials: C, and AI: B.

Thermo Fisher Scientific (NYSE:TMO) has a Due Diligence Score of 37, which is 9 points higher than the diagnostic & research industry average of 28.

TMO passed 13 out of 38 due diligence checks and has average fundamentals. Thermo Fisher Scientific has seen its stock return 17.33% over the past year, underperforming other diagnostic & research stocks by -7 percentage points.

Thermo Fisher Scientific has an average 1 year price target of $653.69, an upside of 23.99% from Thermo Fisher Scientific's current stock price of $527.22.

Thermo Fisher Scientific stock has a consensus Strong Buy recommendation according to Wall Street analysts. Of the 13 analysts covering Thermo Fisher Scientific, 76.92% have issued a Strong Buy rating, 15.38% have issued a Buy, 7.69% 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 1.68%, which is 1 percentage points higher than the diagnostic & research industry average of 0.82%. 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 36.1% 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 1.07%, which is the same as the diagnostic & research industry average of 0.82%. 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 27.3% 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 0.84%, which is the same as the diagnostic & research industry average of 0.82%. 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% indicates that its dividend yield is sustainable for the long-term.

Why are diagnostic & research stocks up?

Diagnostic & research stocks were up 1.9% in the last day, and up 3.76% 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 100, which is 86 points higher than the diagnostic & research industry average of 14. It passed 7 out of 7 valuation due diligence checks.

Icon's stock has dropped -22.95% in the past year. It has underperformed other stocks in the diagnostic & research industry by -47 percentage points.

2. Qiagen Nv (NYSE:QGEN)

Qiagen Nv (NYSE:QGEN) 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.

Qiagen Nv has a valuation score of 43, which is 29 points higher than the diagnostic & research industry average of 14. It passed 3 out of 7 valuation due diligence checks.

Qiagen Nv's stock has dropped -1.32% in the past year. It has underperformed other stocks in the diagnostic & research industry by -26 percentage points.

3. Agilent Technologies (NYSE:A)

Agilent Technologies (NYSE:A) 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.

Agilent Technologies 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.

Agilent Technologies's stock has gained 14.45% in the past year. It has underperformed other stocks in the diagnostic & research industry by -10 percentage points.

Are diagnostic & research stocks a good buy now?

51.16% of diagnostic & research stocks rated by analysts are a strong buy right now. On average, analysts expect diagnostic & research stocks to rise by 21.11% over the next year.

2.27% of diagnostic & research stocks have a Zen Rating of A (Strong Buy), 27.27% of diagnostic & research stocks are rated B (Buy), 54.55% are rated C (Hold), 15.91% 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 21.7x.

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. Sotera Health Co (NASDAQ:SHC)

3. Thermo Fisher Scientific (NYSE:TMO)

1. Quest Diagnostics (NYSE:DGX)

2. Labcorp Holdings (NYSE:LH)

3. Agilent Technologies (NYSE:A)

1. Icon (NASDAQ:ICLR)

2. Qiagen Nv (NYSE:QGEN)

3. Agilent Technologies (NYSE:A)

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