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Stock Comparison

ALDX vs OCUL vs KALA vs HALO vs SRRK

Revenue, margins, valuation, and 5-year total return — side by side.

Live fundamentals10-year financials5-year price chart
ALDX
Aldeyra Therapeutics, Inc.

Biotechnology

HealthcareNASDAQ • US
Market Cap$104M
5Y Perf.-64.8%
OCUL
Ocular Therapeutix, Inc.

Biotechnology

HealthcareNASDAQ • US
Market Cap$2.12B
5Y Perf.+37.5%
KALA
KALA BIO, Inc.

Biotechnology

HealthcareNASDAQ • US
Market Cap$618K
5Y Perf.-100.0%
HALO
Halozyme Therapeutics, Inc.

Biotechnology

HealthcareNASDAQ • US
Market Cap$7.68B
5Y Perf.+168.6%
SRRK
Scholar Rock Holding Corporation

Biotechnology

HealthcareNASDAQ • US
Market Cap$5.34B
5Y Perf.+152.4%

ALDX vs OCUL vs KALA vs HALO vs SRRK — Key Financials

Market cap, revenue, margins, and valuation side-by-side.

Company Snapshot
ALDX logoALDX
OCUL logoOCUL
KALA logoKALA
HALO logoHALO
SRRK logoSRRK
IndustryBiotechnologyBiotechnologyBiotechnologyBiotechnologyBiotechnology
Market Cap$104M$2.12B$618K$7.68B$5.34B
Revenue (TTM)$0.00$52M$254K$1.40B$0.00
Net Income (TTM)$-43M$-290M$-36M$317M$-409M
Gross Margin87.2%-3.1%81.9%
Operating Margin-5.8%-150.6%58.4%
Forward P/E24.7x8.1x
Total Debt$15M$80M$32M$0.00$109M
Cash & Equiv.$55M$737M$51M$134M$324M

ALDX vs OCUL vs KALA vs HALO vs SRRKLong-Term Stock Performance

Price return indexed to 100 at period start. Dividends excluded.

ALDX
OCUL
KALA
HALO
SRRK
StockMay 20May 26Return
Aldeyra Therapeutic… (ALDX)10035.2-64.8%
Ocular Therapeutix,… (OCUL)100137.5+37.5%
KALA BIO, Inc. (KALA)1000.0-100.0%
Halozyme Therapeuti… (HALO)100268.6+168.6%
Scholar Rock Holdin… (SRRK)100252.4+152.4%

Price return only. Dividends and distributions are not included.

Quick Verdict: ALDX vs OCUL vs KALA vs HALO vs SRRK

Each card shows where this stock fits in a portfolio — not just who wins on paper.

Bottom line: HALO leads in 4 of 7 categories (5-stock set), making it the strongest pick for valuation and capital efficiency and profitability and margin quality. KALA BIO, Inc. is the stronger pick specifically for growth and revenue expansion. SRRK also leads in specific categories worth noting. As sector peers, any of these can serve as alternatives in the same allocation.
ALDX
Aldeyra Therapeutics, Inc.
The Healthcare Pick

ALDX lags the leaders in this set but could rank higher in a more targeted comparison.

Best for: healthcare exposure
OCUL
Ocular Therapeutix, Inc.
The Defensive Pick

OCUL is the clearest fit if your priority is sleep-well-at-night and defensive.

  • Lower volatility, beta 1.27, Low D/E 12.2%, current ratio 15.39x
  • Beta 1.27, current ratio 15.39x
Best for: sleep-well-at-night and defensive
KALA
KALA BIO, Inc.
The Growth Play

KALA is the #2 pick in this set and the best alternative if growth exposure is your priority.

  • Rev growth 262.9%, EPS growth 59.8%
  • 262.9% revenue growth vs SRRK's -55.1%
Best for: growth exposure
HALO
Halozyme Therapeutics, Inc.
The Income Pick

HALO carries the broadest edge in this set and is the clearest fit for income & stability and long-term compounding.

  • beta 0.56
  • 5.7% 10Y total return vs SRRK's 199.7%
  • Better valuation composite
  • 22.7% margin vs KALA's -141.1%
Best for: income & stability and long-term compounding
SRRK
Scholar Rock Holding Corporation
The Momentum Pick

SRRK ranks third and is worth considering specifically for momentum.

  • +56.4% vs KALA's -97.6%
Best for: momentum
See the full category breakdown
CategoryWinnerWhy
GrowthKALA logoKALA262.9% revenue growth vs SRRK's -55.1%
ValueHALO logoHALOBetter valuation composite
Quality / MarginsHALO logoHALO22.7% margin vs KALA's -141.1%
Stability / SafetyHALO logoHALOBeta 0.56 vs KALA's 2.09
DividendsTieNone of these 5 stocks pay a meaningful dividend
Momentum (1Y)SRRK logoSRRK+56.4% vs KALA's -97.6%
Efficiency (ROA)HALO logoHALO12.5% ROA vs KALA's -143.2%

ALDX vs OCUL vs KALA vs HALO vs SRRK — Revenue Breakdown by Segment

How each company's revenue is distributed across its business units

ALDXAldeyra Therapeutics, Inc.

Segment breakdown not available.

OCULOcular Therapeutix, Inc.
FY 2025
Product
99.8%$52M
Collaboration revenue
0.2%$128,000
KALAKALA BIO, Inc.

Segment breakdown not available.

HALOHalozyme Therapeutics, Inc.
FY 2025
Royalty
53.6%$868M
Product
23.3%$376M
Collaborative Agreements
9.4%$152M
Bulk rHuPH20
8.2%$133M
Sales-based milestone
4.3%$70M
Upfront Fees
1.1%$18M
SRRKScholar Rock Holding Corporation

Segment breakdown not available.

ALDX vs OCUL vs KALA vs HALO vs SRRK — Financial Metrics

Side-by-side numbers across 5 stocks — who leads on profitability, valuation, growth, and risk.

BEST OVERALLHALOLAGGINGKALA

Income & Cash Flow (Last 12 Months)

HALO leads this category, winning 4 of 6 comparable metrics.

HALO and SRRK operate at a comparable scale, with $1.4B and $0 in trailing revenue. HALO is the more profitable business, keeping 22.7% of every revenue dollar as net income compared to KALA's -141.1%. On growth, HALO holds the edge at +51.6% YoY revenue growth, suggesting stronger near-term business momentum.

MetricALDX logoALDXAldeyra Therapeut…OCUL logoOCULOcular Therapeuti…KALA logoKALAKALA BIO, Inc.HALO logoHALOHalozyme Therapeu…SRRK logoSRRKScholar Rock Hold…
RevenueTrailing 12 months$0$52M$254,000$1.4B$0
EBITDAEarnings before interest/tax-$45M-$295M-$38M$945M-$408M
Net IncomeAfter-tax profit-$43M-$290M-$36M$317M-$409M
Free Cash FlowCash after capex-$40M-$241M-$32M$645M-$304M
Gross MarginGross profit ÷ Revenue+87.2%-3.1%+81.9%
Operating MarginEBIT ÷ Revenue-5.8%-150.6%+58.4%
Net MarginNet income ÷ Revenue-5.6%-141.1%+22.7%
FCF MarginFCF ÷ Revenue-4.6%-126.3%+46.2%
Rev. Growth (YoY)Latest quarter vs prior year+0.8%+51.6%
EPS Growth (YoY)Latest quarter vs prior year+48.0%-5.3%+44.6%-2.1%-23.9%
HALO leads this category, winning 4 of 6 comparable metrics.

Valuation Metrics

HALO leads this category, winning 2 of 4 comparable metrics.
MetricALDX logoALDXAldeyra Therapeut…OCUL logoOCULOcular Therapeuti…KALA logoKALAKALA BIO, Inc.HALO logoHALOHalozyme Therapeu…SRRK logoSRRKScholar Rock Hold…
Market CapShares × price$104M$2.1B$617,676$7.7B$5.3B
Enterprise ValueMkt cap + debt − cash$65M$1.5B-$18M$7.5B$5.1B
Trailing P/EPrice ÷ TTM EPS-1.84x-6.82x-0.01x25.46x-14.12x
Forward P/EPrice ÷ next-FY EPS est.24.71x8.09x
PEG RatioP/E ÷ EPS growth rate1.11x
EV / EBITDAEnterprise value multiple8.34x
Price / SalesMarket cap ÷ Revenue40.90x5.50x
Price / BookPrice ÷ Book value/share1.45x2.77x0.04x165.47x21.70x
Price / FCFMarket cap ÷ FCF11.91x
HALO leads this category, winning 2 of 4 comparable metrics.

Profitability & Efficiency

HALO leads this category, winning 7 of 9 comparable metrics.

HALO delivers a 6.5% return on equity — every $100 of shareholder capital generates $6 in annual profit, vs $-4 for KALA. OCUL carries lower financial leverage with a 0.12x debt-to-equity ratio, signaling a more conservative balance sheet compared to KALA's 2.62x. On the Piotroski fundamental quality scale (0–9), HALO scores 5/9 vs SRRK's 1/9, reflecting solid financial health.

MetricALDX logoALDXAldeyra Therapeut…OCUL logoOCULOcular Therapeuti…KALA logoKALAKALA BIO, Inc.HALO logoHALOHalozyme Therapeu…SRRK logoSRRKScholar Rock Hold…
ROE (TTM)Return on equity-87.7%-64.6%-3.9%+6.5%-163.5%
ROA (TTM)Return on assets-55.5%-48.4%-143.2%+12.5%-96.7%
ROICReturn on invested capital-3.7%+73.4%-2.0%
ROCEReturn on capital employed-56.7%-46.0%-95.2%+38.2%-99.0%
Piotroski ScoreFundamental quality 0–914251
Debt / EquityFinancial leverage0.22x0.12x2.62x0.44x
Net DebtTotal debt minus cash-$39M-$657M-$19M-$134M-$215M
Cash & Equiv.Liquid assets$55M$737M$51M$134M$324M
Total DebtShort + long-term debt$15M$80M$32M$0$109M
Interest CoverageEBIT ÷ Interest expense-21.72x-24.63x-6.92x46.08x-106.01x
HALO leads this category, winning 7 of 9 comparable metrics.

Total Returns (Dividends Reinvested)

SRRK leads this category, winning 5 of 6 comparable metrics.

A $10,000 investment in SRRK five years ago would be worth $15,140 today (with dividends reinvested), compared to $3 for KALA. Over the past 12 months, SRRK leads with a +56.4% total return vs KALA's -97.6%. The 3-year compound annual growth rate (CAGR) favors SRRK at 79.5% vs KALA's -82.6% — a key indicator of consistent wealth creation.

MetricALDX logoALDXAldeyra Therapeut…OCUL logoOCULOcular Therapeuti…KALA logoKALAKALA BIO, Inc.HALO logoHALOHalozyme Therapeu…SRRK logoSRRKScholar Rock Hold…
YTD ReturnYear-to-date-63.0%-18.1%-86.6%-7.3%+8.5%
1-Year ReturnPast 12 months-13.9%+37.3%-97.6%-7.1%+56.4%
3-Year ReturnCumulative with dividends-83.8%+51.2%-99.5%+115.3%+478.5%
5-Year ReturnCumulative with dividends-86.1%-40.4%-100.0%+37.0%+51.4%
10-Year ReturnCumulative with dividends-72.1%-10.6%-100.0%+570.7%+199.7%
CAGR (3Y)Annualised 3-year return-45.5%+14.8%-82.6%+29.1%+79.5%
SRRK leads this category, winning 5 of 6 comparable metrics.

Risk & Volatility

Evenly matched — HALO and SRRK each lead in 1 of 2 comparable metrics.

HALO is the less volatile stock with a 0.56 beta — it tends to amplify market swings less than KALA's 2.09 beta. A beta below 1.0 means the stock typically moves less than the S&P 500. SRRK currently trades 90.0% from its 52-week high vs KALA's 0.4% drawdown — a narrower gap to the peak suggests stronger recent price momentum.

MetricALDX logoALDXAldeyra Therapeut…OCUL logoOCULOcular Therapeuti…KALA logoKALAKALA BIO, Inc.HALO logoHALOHalozyme Therapeu…SRRK logoSRRKScholar Rock Hold…
Beta (5Y)Sensitivity to S&P 5001.45x1.27x2.09x0.56x1.31x
52-Week HighHighest price in past year$6.18$16.44$20.60$82.22$51.63
52-Week LowLowest price in past year$1.07$6.23$0.08$47.50$27.07
% of 52W HighCurrent price vs 52-week peak+28.0%+58.9%+0.4%+79.3%+90.0%
RSI (14)Momentum oscillator 0–10042.958.330.152.449.9
Avg Volume (50D)Average daily shares traded3.6M4.0M9.2M1.4M1.5M
Evenly matched — HALO and SRRK each lead in 1 of 2 comparable metrics.

Analyst Outlook

Insufficient data to determine a leader in this category.

Analyst consensus: ALDX as "Buy", OCUL as "Buy", KALA as "Buy", HALO as "Buy", SRRK as "Buy". Consensus price targets imply 21861.5% upside for KALA (target: $18) vs 20.2% for HALO (target: $78).

MetricALDX logoALDXAldeyra Therapeut…OCUL logoOCULOcular Therapeuti…KALA logoKALAKALA BIO, Inc.HALO logoHALOHalozyme Therapeu…SRRK logoSRRKScholar Rock Hold…
Analyst RatingConsensus buy/hold/sellBuyBuyBuyBuyBuy
Price TargetConsensus 12-month target$9.67$25.50$18.25$78.33$56.57
# AnalystsCovering analysts191892712
Dividend YieldAnnual dividend ÷ price
Dividend StreakConsecutive years of raises
Dividend / ShareAnnual DPS
Buyback YieldShare repurchases ÷ mkt cap0.0%0.0%0.0%+4.5%0.0%
Insufficient data to determine a leader in this category.
Key Takeaway

HALO leads in 3 of 6 categories (Income & Cash Flow, Valuation Metrics). SRRK leads in 1 (Total Returns). 1 tied.

Best OverallHalozyme Therapeutics, Inc. (HALO)Leads 3 of 6 categories
Loading custom metrics...

ALDX vs OCUL vs KALA vs HALO vs SRRK: Key Questions Answered

10 questions · data-driven answers · updated daily

01

Is ALDX or OCUL or KALA or HALO or SRRK a better buy right now?

For growth investors, Halozyme Therapeutics, Inc.

(HALO) is the stronger pick with 37. 6% revenue growth year-over-year, versus -18. 7% for Ocular Therapeutix, Inc. (OCUL). Halozyme Therapeutics, Inc. (HALO) offers the better valuation at 25. 5x trailing P/E (8. 1x forward), making it the more compelling value choice. Analysts rate Aldeyra Therapeutics, Inc. (ALDX) a "Buy" — based on 19 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

02

Which has the better valuation — ALDX or OCUL or KALA or HALO or SRRK?

On forward P/E, Halozyme Therapeutics, Inc.

is actually cheaper at 8. 1x.

03

Which is the better long-term investment — ALDX or OCUL or KALA or HALO or SRRK?

Over the past 5 years, Scholar Rock Holding Corporation (SRRK) delivered a total return of +51.

4%, compared to -100. 0% for KALA BIO, Inc. (KALA). Over 10 years, the gap is even starker: HALO returned +570. 7% versus KALA's -100. 0%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

04

Which is safer — ALDX or OCUL or KALA or HALO or SRRK?

By beta (market sensitivity over 5 years), Halozyme Therapeutics, Inc.

(HALO) is the lower-risk stock at 0. 56β versus KALA BIO, Inc. 's 2. 09β — meaning KALA is approximately 275% more volatile than HALO relative to the S&P 500. On balance sheet safety, Ocular Therapeutix, Inc. (OCUL) carries a lower debt/equity ratio of 12% versus 3% for KALA BIO, Inc. — giving it more financial flexibility in a downturn.

05

Which is growing faster — ALDX or OCUL or KALA or HALO or SRRK?

By revenue growth (latest reported year), Halozyme Therapeutics, Inc.

(HALO) is pulling ahead at 37. 6% versus -18. 7% for Ocular Therapeutix, Inc. (OCUL). On earnings-per-share growth, the picture is similar: KALA BIO, Inc. grew EPS 59. 8% year-over-year, compared to -46. 9% for Aldeyra Therapeutics, Inc.. Over a 3-year CAGR, HALO leads at 28. 4% annualised revenue growth. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

06

Which has better profit margins — ALDX or OCUL or KALA or HALO or SRRK?

Halozyme Therapeutics, Inc.

(HALO) is the more profitable company, earning 22. 7% net margin versus -141. 1% for KALA BIO, Inc. — meaning it keeps 22. 7% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: HALO leads at 58. 4% versus -150. 6% for KALA. At the gross margin level — before operating expenses — OCUL leads at 87. 3%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

07

Is ALDX or OCUL or KALA or HALO or SRRK more undervalued right now?

On forward earnings alone, Halozyme Therapeutics, Inc.

(HALO) trades at 8. 1x forward P/E versus 24. 7x for Aldeyra Therapeutics, Inc. — 16. 6x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for KALA: 21861. 5% to $18. 25.

08

Which pays a better dividend — ALDX or OCUL or KALA or HALO or SRRK?

None of the stocks in this comparison currently pay a material dividend.

All are effectively zero-yield and should be held for capital appreciation rather than income.

09

Is ALDX or OCUL or KALA or HALO or SRRK better for a retirement portfolio?

For long-horizon retirement investors, Halozyme Therapeutics, Inc.

(HALO) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 56), +570. 7% 10Y return). KALA BIO, Inc. (KALA) carries a higher beta of 2. 09 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (HALO: +570. 7%, KALA: -100. 0%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

10

What are the main differences between ALDX and OCUL and KALA and HALO and SRRK?

Both stocks operate in the Healthcare sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

In terms of investment character: ALDX is a small-cap quality compounder stock; OCUL is a small-cap quality compounder stock; KALA is a small-cap quality compounder stock; HALO is a small-cap high-growth stock; SRRK is a small-cap quality compounder stock. These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.

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  • Market Cap > $100B
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