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Compare stocks with our powerful stock comparison tool. Analyze fundamentals, price performance, and key financial indicators to make informed investment decisions. Our tool lets you compare up to ten stocks side by side based on Performance Charts, Price & Volume, MarketRank™, Analyst Ratings, Sales & Book Value, Profitability & Earnings, Dividends, Debt, Ownership, Headlines, and more. Simply enter up to ten stock symbols (e.g., BAC, JPM, WFC, C, GS) to get started and uncover top investment opportunities.

CompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's Volume
Axcella Health Inc. stock logo
AXLA
Axcella Health
$0.40
$0.84
$0.34
$41.25
$1.18M0.46267,009 shsN/A
Protara Therapeutics, Inc. stock logo
TARA
Protara Therapeutics
$4.76
+9.7%
$5.19
$2.77
$7.82
$243.93M1.53661,190 shs704,375 shs
Voyager Therapeutics, Inc. stock logo
VYGR
Voyager Therapeutics
$3.50
+0.6%
$4.00
$2.64
$5.55
$210.27M1.26526,656 shs990,121 shs
X4 Pharmaceuticals, Inc. stock logo
XFOR
X4 Pharmaceuticals
$3.77
+3.6%
$4.13
$1.35
$4.83
$343.32M0.31393,906 shs271,760 shs
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Compare Price Performance

Company1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year Performance
Axcella Health Inc. stock logo
AXLA
Axcella Health
0.00%0.00%0.00%0.00%0.00%
Protara Therapeutics, Inc. stock logo
TARA
Protara Therapeutics
+9.68%-8.46%-10.19%-33.43%+36.78%
Voyager Therapeutics, Inc. stock logo
VYGR
Voyager Therapeutics
+0.57%-15.66%-17.26%+2.34%+2.94%
X4 Pharmaceuticals, Inc. stock logo
XFOR
X4 Pharmaceuticals
+3.57%-10.87%-10.02%+21.61%+39.11%
CompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's Volume
Axcella Health Inc. stock logo
AXLA
Axcella Health
$0.40
$0.84
$0.34
$41.25
$1.18M0.46267,009 shsN/A
Protara Therapeutics, Inc. stock logo
TARA
Protara Therapeutics
$4.76
+9.7%
$5.19
$2.77
$7.82
$243.93M1.53661,190 shs704,375 shs
Voyager Therapeutics, Inc. stock logo
VYGR
Voyager Therapeutics
$3.50
+0.6%
$4.00
$2.64
$5.55
$210.27M1.26526,656 shs990,121 shs
X4 Pharmaceuticals, Inc. stock logo
XFOR
X4 Pharmaceuticals
$3.77
+3.6%
$4.13
$1.35
$4.83
$343.32M0.31393,906 shs271,760 shs
The 10 Best AI Stocks to Own in 2026 Cover

Wondering where to start (or end) with AI stocks? These 10 simple stocks can help investors build long-term wealth as artificial intelligence continues to grow into the future.

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Compare Price Performance

Company1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year Performance
Axcella Health Inc. stock logo
AXLA
Axcella Health
0.00%0.00%0.00%0.00%0.00%
Protara Therapeutics, Inc. stock logo
TARA
Protara Therapeutics
+9.68%-8.46%-10.19%-33.43%+36.78%
Voyager Therapeutics, Inc. stock logo
VYGR
Voyager Therapeutics
+0.57%-15.66%-17.26%+2.34%+2.94%
X4 Pharmaceuticals, Inc. stock logo
XFOR
X4 Pharmaceuticals
+3.57%-10.87%-10.02%+21.61%+39.11%
CompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current Price
Axcella Health Inc. stock logo
AXLA
Axcella Health
0.00
N/AN/AN/A
Protara Therapeutics, Inc. stock logo
TARA
Protara Therapeutics
2.89
Moderate Buy$25.20429.41% Upside
Voyager Therapeutics, Inc. stock logo
VYGR
Voyager Therapeutics
2.75
Moderate Buy$16.50371.43% Upside
X4 Pharmaceuticals, Inc. stock logo
XFOR
X4 Pharmaceuticals
2.40
Hold$8.50125.46% Upside

Current Analyst Ratings Breakdown

Latest TARA, AXLA, XFOR, and VYGR Analyst Ratings

DateCompanyBrokerageActionRatingPrice TargetDetails
5/20/2026
Protara Therapeutics, Inc. stock logo
TARA
Protara Therapeutics
Boost Price TargetOutperform$25.00 ➝ $28.00
5/20/2026
Protara Therapeutics, Inc. stock logo
TARA
Protara Therapeutics
Reiterated RatingOverweight
5/20/2026
Protara Therapeutics, Inc. stock logo
TARA
Protara Therapeutics
Reiterated RatingBuy
5/20/2026
Protara Therapeutics, Inc. stock logo
TARA
Protara Therapeutics
Reiterated RatingBuy
5/14/2026
Protara Therapeutics, Inc. stock logo
TARA
Protara Therapeutics
Lower Price TargetOverweight$27.00 ➝ $26.00
5/8/2026
X4 Pharmaceuticals, Inc. stock logo
XFOR
X4 Pharmaceuticals
DowngradeSell (D-)Sell (E+)
4/29/2026
Protara Therapeutics, Inc. stock logo
TARA
Protara Therapeutics
Boost Price TargetBuy$23.00 ➝ $27.00
4/24/2026
X4 Pharmaceuticals, Inc. stock logo
XFOR
X4 Pharmaceuticals
UpgradeSell (E+)Sell (D-)
4/21/2026
Protara Therapeutics, Inc. stock logo
TARA
Protara Therapeutics
Reiterated RatingSell (D-)
4/15/2026
Voyager Therapeutics, Inc. stock logo
VYGR
Voyager Therapeutics
Reiterated RatingSell (D-)
3/27/2026
X4 Pharmaceuticals, Inc. stock logo
XFOR
X4 Pharmaceuticals
Reiterated RatingSell (D-)
(Data available from 5/21/2023 forward. View 10+ years of historical ratings with our analyst ratings screener.)
CompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/Book
Axcella Health Inc. stock logo
AXLA
Axcella Health
N/AN/AN/AN/A$1.42 per shareN/A
Protara Therapeutics, Inc. stock logo
TARA
Protara Therapeutics
N/AN/AN/AN/A$3.22 per shareN/A
Voyager Therapeutics, Inc. stock logo
VYGR
Voyager Therapeutics
$40.37M5.24N/AN/A$2.87 per share1.22
X4 Pharmaceuticals, Inc. stock logo
XFOR
X4 Pharmaceuticals
$35.11M10.13N/AN/A$1.79 per share2.11
CompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings Date
Axcella Health Inc. stock logo
AXLA
Axcella Health
-$81.19M-$19.25N/AN/AN/AN/AN/A-259.91%N/A
Protara Therapeutics, Inc. stock logo
TARA
Protara Therapeutics
-$57.44M-$1.34N/AN/AN/AN/A-38.70%-36.02%7/30/2026 (Estimated)
Voyager Therapeutics, Inc. stock logo
VYGR
Voyager Therapeutics
-$119.72M-$1.97N/AN/AN/A-319.61%-55.97%-43.12%8/5/2026 (Estimated)
X4 Pharmaceuticals, Inc. stock logo
XFOR
X4 Pharmaceuticals
-$79.20M-$4.54N/AN/AN/A-1,106.30%-94.90%-48.09%8/6/2026 (Estimated)

Latest TARA, AXLA, XFOR, and VYGR Earnings

DateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails
5/13/2026Q1 2026
Protara Therapeutics, Inc. stock logo
TARA
Protara Therapeutics
-$0.36-$0.31+$0.05-$0.31N/AN/A
5/7/2026Q1 2026
Voyager Therapeutics, Inc. stock logo
VYGR
Voyager Therapeutics
-$0.54-$0.47+$0.07-$0.47$8.79 million$1.19 million
5/6/2026Q1 2026
X4 Pharmaceuticals, Inc. stock logo
XFOR
X4 Pharmaceuticals
-$0.20-$0.16+$0.04-$0.16$3.20 million$2.71 million
3/17/2026Q4 2025
X4 Pharmaceuticals, Inc. stock logo
XFOR
X4 Pharmaceuticals
-$0.36-$0.22+$0.14$1.00$1.68 million$2.57 million
3/10/2026Q4 2025
Protara Therapeutics, Inc. stock logo
TARA
Protara Therapeutics
-$0.34-$0.37-$0.03-$0.37N/AN/A
3/9/2026Q4 2025
Voyager Therapeutics, Inc. stock logo
VYGR
Voyager Therapeutics
-$0.54-$0.46+$0.08-$0.46$10.49 million$13.46 million
CompanyAnnual PayoutDividend Yield5-Year Annualized Dividend GrowthPayout RatioYears of Consecutive Growth
Axcella Health Inc. stock logo
AXLA
Axcella Health
N/AN/AN/AN/AN/A
Protara Therapeutics, Inc. stock logo
TARA
Protara Therapeutics
N/AN/AN/AN/AN/A
Voyager Therapeutics, Inc. stock logo
VYGR
Voyager Therapeutics
N/AN/AN/AN/AN/A
X4 Pharmaceuticals, Inc. stock logo
XFOR
X4 Pharmaceuticals
N/AN/AN/AN/AN/A
CompanyDebt-to-Equity RatioCurrent RatioQuick Ratio
Axcella Health Inc. stock logo
AXLA
Axcella Health
N/A
0.80
0.80
Protara Therapeutics, Inc. stock logo
TARA
Protara Therapeutics
N/A
15.69
15.69
Voyager Therapeutics, Inc. stock logo
VYGR
Voyager Therapeutics
N/A
8.42
8.42
X4 Pharmaceuticals, Inc. stock logo
XFOR
X4 Pharmaceuticals
0.45
10.18
9.98

Institutional Ownership

CompanyInstitutional Ownership
Axcella Health Inc. stock logo
AXLA
Axcella Health
65.07%
Protara Therapeutics, Inc. stock logo
TARA
Protara Therapeutics
38.13%
Voyager Therapeutics, Inc. stock logo
VYGR
Voyager Therapeutics
48.03%
X4 Pharmaceuticals, Inc. stock logo
XFOR
X4 Pharmaceuticals
72.03%

Insider Ownership

CompanyInsider Ownership
Axcella Health Inc. stock logo
AXLA
Axcella Health
2.20%
Protara Therapeutics, Inc. stock logo
TARA
Protara Therapeutics
7.60%
Voyager Therapeutics, Inc. stock logo
VYGR
Voyager Therapeutics
12.70%
X4 Pharmaceuticals, Inc. stock logo
XFOR
X4 Pharmaceuticals
1.13%
CompanyEmployeesShares OutstandingFree FloatOptionable
Axcella Health Inc. stock logo
AXLA
Axcella Health
112.95 million2.88 millionNo Data
Protara Therapeutics, Inc. stock logo
TARA
Protara Therapeutics
3056.20 million51.93 millionOptionable
Voyager Therapeutics, Inc. stock logo
VYGR
Voyager Therapeutics
10060.42 million52.75 millionOptionable
X4 Pharmaceuticals, Inc. stock logo
XFOR
X4 Pharmaceuticals
8094.32 million93.25 millionNo Data

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Axcella Health stock logo

Axcella Health NASDAQ:AXLA

Axcella Health Inc. operates as a clinical-stage biotechnology company in the United States. The company treats complex diseases using endogenous metabolic modulators. Its product pipeline includes AXA1125 that is in Phase 2a clinical trial for long COVID therapy for patients, as well as Phase 2b clinical trial for treating non-alcoholic steatohepatitis; and AXA1665, which is in Phase 2 clinical trial for the reduction in risk of overt hepatic encephalopathy recurrence. The company was formerly known as Newco LS16, Inc. and changed its name to Axcella Health Inc. in June 2016. Axcella Health Inc. was incorporated in 2008 and is based in Cambridge, Massachusetts.

Protara Therapeutics stock logo

Protara Therapeutics NASDAQ:TARA

$4.76 +0.42 (+9.68%)
Closing price 05/20/2026 04:00 PM Eastern
Extended Trading
$4.69 -0.07 (-1.55%)
As of 07:00 AM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.

Protara Therapeutics, Inc., a clinical-stage biopharmaceutical company, engages in advancing transformative therapies for the treatment of cancer and rare diseases. The company's lead program is TARA-002, an investigational cell therapy, which is in Phase II clinical trial for the treatment of non-muscle invasive bladder cancer and lymphatic malformations. It is also developing intravenous choline chloride, an investigational phospholipid substrate replacement therapy that is in Phase II clinical trial for patients receiving parenteral nutrition. The company is headquartered in New York, New York.

Voyager Therapeutics stock logo

Voyager Therapeutics NASDAQ:VYGR

$3.50 +0.02 (+0.57%)
Closing price 05/20/2026 04:00 PM Eastern
Extended Trading
$3.52 +0.02 (+0.54%)
As of 07:00 AM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.

Voyager Therapeutics, Inc., a biotechnology company, focuses on the treatment of gene therapy and neurology diseases. The company's lead clinical candidate is VY-TAU01, an anti-tau antibody program for the treatment of alzheimer's disease. Its product pipeline includes superoxide dismutase 1 silencing gene therapy, which is in preclinical trial for the treatment of amyotrophic lateral sclerosis; tau silencing gene therapy, which is in preclinical trial for the treatment of alzheimer's disease; and vectorized anti-amyloid antibody, a gene therapy targeting anti-amyloid for the treatment of alzheimer's disease and is in preclinical trial. In addition, the company develops VY-FXN01, which is in preclinical trial to treat friedreich's ataxia; and GBA1 gene replacement to treat parkinson's disease and is in preclinical trial. Further, it provides research program for the treatment of Huntington's disease. The company has collaboration and license agreements with Alexion; AstraZeneca Rare Disease; Novartis Pharma AG; Neurocrine Biosciences, Inc; and Sangamo Therapeutics, Inc. Voyager Therapeutics, Inc. was incorporated in 2013 and is headquartered in Lexington, Massachusetts.

X4 Pharmaceuticals stock logo

X4 Pharmaceuticals NASDAQ:XFOR

$3.77 +0.13 (+3.57%)
Closing price 05/20/2026 04:00 PM Eastern
Extended Trading
$4.04 +0.27 (+7.14%)
As of 06:03 AM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.

X4 Pharmaceuticals, Inc., a late-stage clinical biopharmaceutical company, focuses on the research, development, and commercialization of novel therapeutics for the treatment of rare diseases. Its lead product candidate is mavorixafor, a small molecule inhibitor of the chemokine receptor C-X-C chemokine receptor type 4 (CXCR4), which is in Phase III clinical trial for the treatment of patients with warts, hypogammaglobulinemia, infections, and myelokathexis syndrome; and Phase II clinical trial to treat congenital, idiopathic, or cyclic neutropenia. The company is also developing X4P-003, a CXCR4 antagonist for the treatment of CXCR4 dependent disorders and primary immunodeficiencies; and X4P-002, a CXCR4 antagonist for the treatment of blood-brain barrier diseases. It has a license agreement with Abbisko Therapeutics Co Ltd. to develop, manufacture, and commercialize mavorixafor in combination with checkpoint inhibitors or other agents in oncology indications. The company is headquartered in Boston, Massachusetts.