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

Value 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	1d %	1w %	1m %	3m %	6m %	1y %	3y %	5y %	10y %	52-week High	52-week Low	% off 52-week High	% off 52-week Low	Beta	Volume	Vol 1d %
SHC	SOTERA HEALTH CO	$18.99	-1.09%	3.77%	12.83%	21.19%	63.57%	45.07%	3.88%	-24.67%	N/A	$19.85	$9.53	4.33%	99.27%	1.19	2,138,000	-62.42%
IDXX	IDEXX LABORATORIES INC	$724.76	1.60%	6.23%	2.92%	14.44%	36.38%	71.49%	54.30%	45.91%	946.43%	$769.98	$356.14	5.87%	103.50%	1.20	503,000	-1.57%
A	AGILENT TECHNOLOGIES INC	$147.99	-0.36%	3.54%	5.95%	7.06%	23.24%	4.26%	-5.43%	16.56%	287.51%	$160.27	$96.43	7.66%	53.47%	1.03	917,000	-49.59%
DHR	DANAHER CORP	$239.00	0.26%	1.55%	5.60%	16.51%	20.86%	-0.37%	-12.23%	-0.70%	169.90%	$258.23	$171.00	7.45%	39.77%	0.92	3,051,000	44.60%
CDNA	CAREDX INC	$20.57	20.08%	3.84%	0.05%	41.57%	2.75%	-17.95%	47.99%	-75.23%	237.21%	$25.95	$10.96	20.73%	87.68%	1.68	1,674,000	204.36%
CRL	CHARLES RIVER LABORATORIES INTERNATIONAL INC	$218.82	-0.95%	5.04%	13.36%	28.23%	38.46%	15.08%	-5.78%	-18.42%	185.48%	$222.37	$91.86	1.60%	138.21%	1.26	744,000	-15.93%
PRE	PRENETICS GLOBAL LTD	$15.83	1.93%	-0.13%	6.56%	14.63%	96.65%	169.22%	-39.00%	N/A	N/A	$18.48	$3.10	14.34%	411.47%	0.31	201,000	-26.10%
BNR	BURNING ROCK BIOTECH LTD	$23.45	0.63%	-4.22%	48.87%	172.96%	406.41%	257.97%	-19.43%	-90.64%	N/A	$24.92	$2.18	5.91%	975.55%	1.04	7,900	-55.62%
DGX	QUEST DIAGNOSTICS INC	$175.94	0.86%	1.41%	-3.63%	-3.74%	4.50%	14.23%	18.78%	39.39%	157.83%	$197.55	$148.70	10.94%	18.32%	0.38	695,000	-26.22%
MTD	METTLER TOLEDO INTERNATIONAL INC	$1,491.99	0.46%	3.14%	7.06%	16.13%	24.97%	17.74%	-2.88%	22.25%	370.63%	$1.53k	$946.69	2.18%	57.60%	1.14	107,000	-24.65%
TMO	THERMO FISHER SCIENTIFIC INC	$615.45	-0.55%	0.70%	7.54%	17.32%	44.70%	10.79%	5.83%	23.39%	349.33%	$628.08	$385.46	2.01%	59.67%	0.87	3,169,000	38.63%
LH	LABCORP HOLDINGS INC	$250.39	-0.56%	-1.10%	-5.22%	-9.49%	0.24%	6.96%	-0.77%	13.71%	117.50%	$293.72	$209.38	14.75%	19.59%	0.63	876,000	72.44%
QGEN	QIAGEN NV	$47.25	-2.15%	1.63%	4.49%	0.06%	-2.13%	2.72%	-9.51%	-13.46%	95.03%	$51.88	$37.63	8.92%	25.56%	0.63	1,257,000	16.50%
FLGT	FULGENT GENETICS INC	$28.16	1.11%	11.00%	3.76%	25.21%	47.28%	56.97%	-10.00%	-59.71%	N/A	$31.04	$14.57	9.28%	93.27%	0.99	217,000	-4.82%
ILMN	ILLUMINA INC	$145.55	3.18%	2.99%	7.92%	53.16%	47.72%	0.92%	-24.88%	-59.71%	-13.69%	$153.06	$68.70	4.91%	111.86%	1.30	1,649,000	-13.62%
CAI	CARIS LIFE SCIENCES INC	$25.60	-10.21%	-3.07%	-4.33%	-15.40%	-7.65%	N/A	N/A	N/A	N/A	$42.50	$22.86	39.76%	11.99%	0.99	4,792,000	147.27%
IQV	IQVIA HOLDINGS INC	$240.86	-0.64%	2.67%	8.37%	18.20%	50.42%	17.70%	9.73%	27.16%	269.76%	$247.05	$134.65	2.51%	78.89%	1.13	702,000	-45.62%
MEDP	MEDPACE HOLDINGS INC	$599.21	0.71%	2.11%	7.40%	13.62%	87.04%	70.23%	165.23%	327.55%	N/A	$626.26	$250.05	4.32%	139.64%	1.22	275,000	45.50%
NEOG	NEOGEN CORP	$9.37	-2.60%	29.06%	36.59%	57.48%	79.50%	-25.84%	-47.27%	-77.68%	-53.35%	$12.66	$3.87	25.99%	142.12%	0.80	6,374,000	-32.95%
BLLN	BILLIONTOONE INC	$99.15	15.37%	4.37%	-2.78%	N/A	N/A	N/A	N/A	N/A	N/A	$138.70	$80.51	28.51%	23.15%	3.00	275,000	38.89%
MYGN	MYRIAD GENETICS INC	$6.57	-0.15%	7.00%	-8.88%	-16.20%	25.86%	-53.99%	-65.02%	-73.68%	-84.61%	$15.47	$3.76	57.53%	74.73%	1.35	951,000	11.88%
WAT	WATERS CORP	$393.68	-0.77%	-0.33%	2.17%	17.05%	29.42%	-1.55%	17.27%	47.72%	210.42%	$423.56	$275.05	7.05%	43.13%	0.98	332,000	-32.79%
ACRS	ACLARIS THERAPEUTICS INC	$2.66	0.76%	0.38%	-18.15%	39.27%	68.35%	7.26%	-84.91%	-56.25%	-86.98%	$3.48	$1.05	23.45%	153.33%	1.16	1,256,000	153.23%
NEO	NEOGENOMICS INC	$12.49	-5.09%	3.39%	5.40%	33.73%	73.96%	-1.11%	20.33%	-76.57%	85.86%	$16.18	$4.72	22.81%	164.62%	1.62	3,402,000	161.09%
GH	GUARDANT HEALTH INC	$107.57	-2.36%	5.60%	5.39%	74.26%	116.13%	182.34%	250.85%	-32.80%	N/A	$113.91	$34.88	5.57%	208.40%	1.68	2,357,000	-2.28%
GRAL	GRAIL INC	$105.93	5.82%	10.63%	16.64%	50.38%	163.64%	470.44%	N/A	N/A	N/A	$115.76	$16.56	8.49%	539.67%	2.29	1,001,000	86.75%
CSTL	CASTLE BIOSCIENCES INC	$39.66	0.81%	1.69%	2.67%	73.87%	103.38%	51.66%	52.36%	-49.80%	N/A	$42.18	$14.59	5.96%	171.83%	1.54	615,000	84.13%
ICLR	ICON PLC	$180.15	-0.68%	-8.82%	-3.45%	-3.17%	20.49%	-17.36%	-19.09%	-14.75%	149.97%	$211.00	$125.10	14.62%	44.00%	1.07	887,000	-38.15%
RDNT	RADNET INC	$76.35	-2.37%	2.94%	3.26%	6.46%	34.92%	14.66%	289.54%	265.66%	1,227.83%	$85.84	$45.00	11.06%	69.66%	1.26	552,000	-21.59%
XGN	EXAGEN INC	$5.95	-6.15%	0.00%	-16.32%	-46.11%	-15.84%	90.71%	109.51%	-62.32%	N/A	$12.23	$2.67	51.35%	122.85%	1.04	923,000	110.73%
NTRA	NATERA INC	$235.45	0.49%	-0.83%	1.51%	35.18%	48.85%	39.07%	477.79%	112.44%	2,501.66%	$256.36	$125.38	8.16%	87.79%	1.51	1,739,000	71.16%
BDSX	BIODESIX INC	$8.08	47.99%	29.70%	2.93%	9.19%	29.20%	-67.42%	-83.78%	-98.19%	N/A	$25.20	$3.44	67.94%	135.16%	0.95	75,470,000	173,394.25%
NOTV	INOTIV INC	$0.62	1.81%	6.74%	-19.11%	-54.89%	-67.98%	-85.36%	-91.91%	-95.84%	-59.32%	$4.80	$0.47	87.13%	31.49%	2.23	316,000	72.68%
RVTY	REVVITY INC	$103.89	-0.52%	1.79%	3.38%	14.19%	5.50%	-15.33%	-21.39%	-31.64%	113.99%	$128.29	$81.36	19.02%	27.69%	1.03	884,000	-25.15%
MYNZ	MAINZ BIOMED NV	$1.17	-0.85%	-7.87%	13.59%	-25.48%	-36.76%	-74.95%	-99.58%	N/A	N/A	$8.20	$0.92	85.73%	27.17%	0.87	315,000	-42.10%
OPK	OPKO HEALTH INC	$1.33	-2.21%	3.91%	-3.62%	-11.92%	-0.75%	-13.07%	0.00%	-70.25%	-84.77%	$2.04	$1.11	34.64%	19.82%	1.26	1,970,000	-20.98%
TWST	TWIST BIOSCIENCE CORP	$38.04	7.70%	10.77%	22.99%	26.21%	0.63%	-12.71%	43.22%	-76.64%	N/A	$55.33	$23.30	31.25%	63.26%	2.40	1,644,000	90.28%
MDXH	MDXHEALTH SA	$3.43	5.21%	3.63%	3.31%	-18.33%	56.62%	71.50%	-51.40%	N/A	N/A	$5.33	$1.35	35.65%	154.07%	0.54	367,000	382.89%
IMDX	INSIGHT MOLECULAR DIAGNOSTICS INC	$7.11	-4.44%	-4.82%	36.34%	82.31%	150.35%	241.83%	-24.76%	-88.96%	-91.35%	$8.51	$1.92	16.45%	269.93%	1.04	69,000	56.82%
STIM	NEURONETICS INC	$1.98	-4.35%	40.43%	30.26%	-28.26%	-48.70%	-15.38%	-68.57%	-83.03%	N/A	$5.92	$1.25	66.55%	58.40%	1.38	1,509,000	-42.84%
NDRA	ENDRA LIFE SCIENCES INC	$4.51	-3.01%	-0.44%	-18.00%	-44.46%	-44.11%	-21.29%	-99.95%	-99.99%	N/A	$11.96	$2.90	62.29%	55.52%	1.28	6,400	-53.62%
PSNL	PERSONALIS INC	$8.57	5.80%	6.86%	-2.28%	4.13%	32.46%	60.19%	210.51%	-78.46%	N/A	$11.40	$2.83	24.82%	203.26%	2.30	1,157,000	-1.62%
DRIO	DARIOHEALTH CORP	$11.67	-4.03%	-7.01%	-1.85%	-21.89%	-16.64%	-26.18%	-89.21%	-96.34%	-99.62%	$27.60	$5.94	57.72%	96.63%	1.20	7,800	62.50%
LAB	STANDARD BIOTOOLS INC	$1.51	-1.95%	14.39%	4.14%	17.05%	20.80%	-26.70%	-20.11%	-75.16%	-82.84%	$2.14	$0.92	29.44%	64.13%	1.51	1,675,000	-22.99%
BIAF	BIOAFFINITY TECHNOLOGIES INC	$1.27	-4.51%	1.60%	-15.89%	-52.26%	-85.24%	-94.39%	-97.77%	N/A	N/A	$46.53	$1.11	97.27%	14.41%	1.41	62,500	34.70%
SERA	SERA PROGNOSTICS INC	$3.60	-2.57%	17.48%	2.42%	17.10%	30.25%	-43.21%	136.51%	N/A	N/A	$6.92	$1.37	48.05%	162.41%	0.85	43,000	-66.67%
EXAS	EXACT SCIENCES CORP	$102.23	0.12%	0.61%	0.72%	72.22%	88.27%	74.72%	49.15%	-31.12%	1,292.78%	$102.66	$38.81	0.42%	163.40%	1.29	1,543,000	-1.53%
XWEL	XWELL INC	$0.46	2.91%	5.99%	-40.80%	-53.54%	-53.54%	-66.18%	-94.11%	-98.32%	-99.98%	$1.42	$0.43	67.61%	6.98%	0.63	58,700	19.07%
BNBX	BNB PLUS CORP	$1.57	0.64%	15.44%	-37.77%	-59.01%	-70.04%	-98.92%	-99.99%	-100.00%	-100.00%	$157.50	$1.16	99.00%	35.34%	0.67	63,000	-29.21%
VNRX	VOLITIONRX LTD	$0.34	2.10%	21.43%	26.39%	-24.94%	-50.36%	-45.25%	-86.07%	-91.60%	-91.90%	$0.94	$0.22	63.83%	54.55%	0.76	1,067,000	-52.45%
ADVB	ADVANCED BIOMED INC	$0.36	-0.28%	6.23%	-10.28%	-15.37%	-55.25%	N/A	N/A	N/A	N/A	$4.00	$0.28	91.05%	27.86%	1.03	27,400	-16.97%
MBAI	CHECK-CAP LTD	$1.68	-4.55%	0.30%	-2.33%	-12.04%	113.20%	12.00%	-48.62%	-94.68%	-99.65%	$3.13	$0.60	46.33%	182.35%	1.14	12,100	-55.84%
ISPC	ISPECIMEN INC	$0.31	3.69%	5.10%	-30.87%	-62.64%	-71.39%	-88.47%	-99.02%	N/A	N/A	$3.38	$0.26	90.86%	18.85%	0.87	233,000	-57.25%
FONR	FONAR CORP	$18.59	0.22%	0.43%	26.03%	19.94%	13.98%	22.87%	0.16%	-5.10%	18.11%	$18.86	$12.00	1.43%	54.92%	0.40	96,000	108.70%
TRIB	TRINITY BIOTECH PLC	$0.71	-2.33%	-6.18%	-33.36%	-33.98%	-3.78%	-13.05%	-85.88%	-96.28%	-98.68%	$3.44	$0.48	79.27%	48.54%	0.66	264,000	-11.41%
PRPO	PRECIPIO INC	$26.06	5.21%	9.77%	4.37%	38.99%	75.49%	334.33%	87.70%	-43.35%	-99.67%	$28.50	$3.90	8.56%	568.21%	0.71	4,800	-63.64%

Diagnostic & Research Stocks FAQ

What are the best diagnostic & research stocks to buy right now in Jan 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. Sotera Health Co (NASDAQ:SHC)

Sotera Health Co (NASDAQ:SHC) is the #1 top diagnostic & research stock out of 56 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 27, which is 1 points higher than the diagnostic & research industry average of 26.

SHC passed 9 out of 33 due diligence checks and has average fundamentals. Sotera Health Co has seen its stock return 45.07% over the past year, overperforming other diagnostic & research stocks by 26 percentage points.

Sotera Health Co has an average 1 year price target of $21.00, an upside of 10.58% from Sotera Health Co's current stock price of $18.99.

Sotera Health Co stock has a consensus Strong Buy recommendation according to Wall Street analysts. Of the 4 analysts covering Sotera Health Co, 50% have issued a Strong Buy rating, 25% have issued a Buy, 25% 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 56 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: B.

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 71.49% over the past year, overperforming other diagnostic & research stocks by 53 percentage points.

Idexx Laboratories has an average 1 year price target of $751.25, an upside of 3.66% from Idexx Laboratories's current stock price of $724.76.

Idexx Laboratories stock has a consensus Strong Buy recommendation according to Wall Street analysts. Of the 8 analysts covering Idexx Laboratories, 62.5% have issued a Strong Buy rating, 12.5% have issued a Buy, 25% have issued a hold, while 0% have issued a Sell rating, and 0% have issued a Strong Sell.

3. Agilent Technologies (NYSE:A)

Agilent Technologies (NYSE:A) is the #3 top diagnostic & research stock out of 56 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 Agilent Technologies (NYSE:A) is: Value: B, Growth: C, Momentum: C, Sentiment: C, Safety: A, Financials: B, and AI: B.

Agilent Technologies (NYSE:A) has a Due Diligence Score of 46, which is 20 points higher than the diagnostic & research industry average of 26.

A passed 17 out of 38 due diligence checks and has strong fundamentals. Agilent Technologies has seen its stock return 4.26% over the past year, underperforming other diagnostic & research stocks by -14 percentage points.

Agilent Technologies has an average 1 year price target of $171.00, an upside of 15.55% from Agilent Technologies's current stock price of $147.99.

Agilent Technologies stock has a consensus Strong Buy recommendation according to Wall Street analysts. Of the 12 analysts covering Agilent Technologies, 75% have issued a Strong Buy rating, 16.67% have issued a Buy, 8.33% 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 1.36%, which is 1 percentage points higher than the diagnostic & research industry average of 0.7%. 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 1.15%, which is the same as the diagnostic & research industry average of 0.7%. 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 0.68%, which is the same as the diagnostic & research industry average of 0.7%. 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 21.6% indicates that its dividend yield is sustainable for the long-term.

Why are diagnostic & research stocks up?

Diagnostic & research stocks were up 0.55% in the last day, and up 2.36% over the last week. Biodesix was the among the top gainers in the diagnostics & research industry, gaining 47.99% yesterday.

Biodesix shares are trading higher after the company reported a year-over-year increase in Q4 and FY25 revenue results.

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 2.72% in the past year. It has underperformed other stocks in the diagnostic & research industry by -16 percentage points.

2. Icon (NASDAQ:ICLR)

Icon (NASDAQ:ICLR) 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.

Icon 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.

Icon's stock has dropped -17.36% in the past year. It has underperformed other stocks in the diagnostic & research industry by -36 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 -15.33% in the past year. It has underperformed other stocks in the diagnostic & research industry by -34 percentage points.

Are diagnostic & research stocks a good buy now?

53.49% of diagnostic & research stocks rated by analysts are a strong buy right now. On average, analysts expect diagnostic & research stocks to rise by 3.08% over the next year.

4.55% of diagnostic & research stocks have a Zen Rating of A (Strong Buy), 11.36% of diagnostic & research stocks are rated B (Buy), 75% are rated C (Hold), 9.09% 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 24x.

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. Sotera Health Co (NASDAQ:SHC)

2. Idexx Laboratories (NASDAQ:IDXX)

3. Agilent Technologies (NYSE:A)

1. Quest Diagnostics (NYSE:DGX)

2. Labcorp Holdings (NYSE:LH)

3. Agilent Technologies (NYSE:A)

1. Qiagen Nv (NYSE:QGEN)

2. Icon (NASDAQ:ICLR)

3. Revvity (NYSE:RVTY)

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