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Stock Comparison

IBO vs NNVC vs SIGA vs GILD

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

Live fundamentals10-year financials5-year price chart
IBO
Impact BioMedical Inc.

Biotechnology

HealthcareAMEX • US
Market Cap$144M
5Y Perf.-99.8%
NNVC
NanoViricides, Inc.

Biotechnology

HealthcareAMEX • US
Market Cap$31M
5Y Perf.+35.2%
SIGA
SIGA Technologies, Inc.

Drug Manufacturers - Specialty & Generic

HealthcareNASDAQ • US
Market Cap$339M
5Y Perf.-15.7%
GILD
Gilead Sciences, Inc.

Drug Manufacturers - General

HealthcareNASDAQ • US
Market Cap$166.40B
5Y Perf.+74.2%

IBO vs NNVC vs SIGA vs GILD — Key Financials

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

Company Snapshot
IBO logoIBO
NNVC logoNNVC
SIGA logoSIGA
GILD logoGILD
IndustryBiotechnologyBiotechnologyDrug Manufacturers - Specialty & GenericDrug Manufacturers - General
Market Cap$144M$31M$339M$166.40B
Revenue (TTM)$0.00$0.00$94M$29.73B
Net Income (TTM)$-25M$-2.22T$-4.04T$9.22B
Gross Margin100.0%61.8%63.0%
Operating Margin23.7%27.7%38.2%
Forward P/E2.8x15.7x
Total Debt$9M$0.00$595K$24.59B
Cash & Equiv.$2M$2M$155M$7.56B

IBO vs NNVC vs SIGA vs GILDLong-Term Stock Performance

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

IBO
NNVC
SIGA
GILD
StockMay 23May 26Return
Impact BioMedical I… (IBO)1000.2-99.8%
NanoViricides, Inc. (NNVC)100135.2+35.2%
SIGA Technologies, … (SIGA)10084.3-15.7%
Gilead Sciences, In… (GILD)100174.2+74.2%

Price return only. Dividends and distributions are not included.

Quick Verdict: IBO vs NNVC vs SIGA vs GILD

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

Bottom line: GILD leads in 4 of 7 categories, making it the strongest pick for growth and revenue expansion and profitability and margin quality. SIGA Technologies, Inc. is the stronger pick specifically for valuation and capital efficiency and dividend income and shareholder returns. IBO also leads in specific categories worth noting. As sector peers, any of these can serve as alternatives in the same allocation.
IBO
Impact BioMedical Inc.
The Defensive Choice

IBO is the clearest fit if your priority is stability.

  • Beta 0.12 vs NNVC's 1.34
Best for: stability
NNVC
NanoViricides, Inc.
The Secondary Option

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

Best for: healthcare exposure
SIGA
SIGA Technologies, Inc.
The Income Pick

SIGA is the #2 pick in this set and the best alternative if income & stability and long-term compounding is your priority.

  • Dividend streak 4 yrs, beta 1.15, yield 12.7%
  • 7.6% 10Y total return vs GILD's 87.8%
  • Lower volatility, beta 1.15, Low D/E 0.3%, current ratio 11.83x
  • Beta 1.15, yield 12.7%, current ratio 11.83x
Best for: income & stability and long-term compounding
GILD
Gilead Sciences, Inc.
The Growth Play

GILD carries the broadest edge in this set and is the clearest fit for growth exposure.

  • Rev growth 2.4%, EPS growth 16.8%, 3Y rev CAGR 2.6%
  • 2.4% revenue growth vs NNVC's -258K%
  • 31.0% margin vs SIGA's -43K%
  • +38.8% vs SIGA's +1.5%
Best for: growth exposure
See the full category breakdown
CategoryWinnerWhy
GrowthGILD logoGILD2.4% revenue growth vs NNVC's -258K%
ValueSIGA logoSIGALower P/E (2.8x vs 15.7x)
Quality / MarginsGILD logoGILD31.0% margin vs SIGA's -43K%
Stability / SafetyIBO logoIBOBeta 0.12 vs NNVC's 1.34
DividendsSIGA logoSIGA12.7% yield, 4-year raise streak, vs GILD's 2.4%, (2 stocks pay no dividend)
Momentum (1Y)GILD logoGILD+38.8% vs SIGA's +1.5%
Efficiency (ROA)GILD logoGILD16.1% ROA vs IBO's -124.8%, ROIC 23.4% vs 1.5%

IBO vs NNVC vs SIGA vs GILD — Revenue Breakdown by Segment

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

IBOImpact BioMedical Inc.

Segment breakdown not available.

NNVCNanoViricides, Inc.

Segment breakdown not available.

SIGASIGA Technologies, Inc.
FY 2025
Product Sales and Supportive Services
93.1%$88M
Research and Development
6.9%$7M
GILDGilead Sciences, Inc.
FY 2025
Products, Other HIV
79.7%$20.8B
Cell Therapy Products, Total Cell Therapy Product Sales
8.4%$2.2B
Trodelvy
5.4%$1.4B
Veklury
3.5%$911M
Other Products, Total Other product sales
3.1%$799M

IBO vs NNVC vs SIGA vs GILD — Financial Metrics

Side-by-side numbers across 4 stocks — who leads on profitability, valuation, growth, and risk.

BEST OVERALLGILDLAGGINGNNVC

Income & Cash Flow (Last 12 Months)

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

GILD and NNVC operate at a comparable scale, with $29.7B and $0 in trailing revenue. GILD is the more profitable business, keeping 31.0% of every revenue dollar as net income compared to SIGA's -43117.4%. On growth, GILD holds the edge at +4.4% YoY revenue growth, suggesting stronger near-term business momentum.

MetricIBO logoIBOImpact BioMedical…NNVC logoNNVCNanoViricides, In…SIGA logoSIGASIGA Technologies…GILD logoGILDGilead Sciences, …
RevenueTrailing 12 months$0$0$94M$29.7B
EBITDAEarnings before interest/tax-$28M-$8M$26M$12.1B
Net IncomeAfter-tax profit-$25M-$2.22T-$4.04T$9.2B
Free Cash FlowCash after capex-$3M-$3.73T$33M$10.3B
Gross MarginGross profit ÷ Revenue+100.0%+61.8%+63.0%
Operating MarginEBIT ÷ Revenue+23.7%+27.7%+38.2%
Net MarginNet income ÷ Revenue-88.0%-43117.4%+31.0%
FCF MarginFCF ÷ Revenue-168.1%+35.2%+34.8%
Rev. Growth (YoY)Latest quarter vs prior year-11.3%+4.4%
EPS Growth (YoY)Latest quarter vs prior year-19.5%+21.4%+54.8%
GILD leads this category, winning 4 of 6 comparable metrics.

Valuation Metrics

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

At 14.3x trailing earnings, SIGA trades at a 28% valuation discount to GILD's 19.8x P/E. On an enterprise value basis, SIGA's 7.6x EV/EBITDA is more attractive than IBO's 226.5x.

MetricIBO logoIBOImpact BioMedical…NNVC logoNNVCNanoViricides, In…SIGA logoSIGASIGA Technologies…GILD logoGILDGilead Sciences, …
Market CapShares × price$144M$31M$339M$166.4B
Enterprise ValueMkt cap + debt − cash$149M$29M$185M$183.4B
Trailing P/EPrice ÷ TTM EPS-84.24x-2.25x14.33x19.77x
Forward P/EPrice ÷ next-FY EPS est.2.78x15.69x
PEG RatioP/E ÷ EPS growth rate0.15x
EV / EBITDAEnterprise value multiple226.49x7.60x16.95x
Price / SalesMarket cap ÷ Revenue84.02x3.58x5.65x
Price / BookPrice ÷ Book value/share27.06x2.86x1.70x7.44x
Price / FCFMarket cap ÷ FCF6.96x17.60x
SIGA leads this category, winning 5 of 6 comparable metrics.

Profitability & Efficiency

GILD leads this category, winning 5 of 9 comparable metrics.

GILD delivers a 42.3% return on equity — every $100 of shareholder capital generates $42 in annual profit, vs $-4 for IBO. SIGA carries lower financial leverage with a 0.00x debt-to-equity ratio, signaling a more conservative balance sheet compared to IBO's 1.23x. On the Piotroski fundamental quality scale (0–9), GILD scores 9/9 vs NNVC's 1/9, reflecting strong financial health.

MetricIBO logoIBOImpact BioMedical…NNVC logoNNVCNanoViricides, In…SIGA logoSIGASIGA Technologies…GILD logoGILDGilead Sciences, …
ROE (TTM)Return on equity-3.7%-20.1%-10.7%+42.3%
ROA (TTM)Return on assets-124.8%-18.1%-7.4%+16.1%
ROICReturn on invested capital+1.5%-114.0%+33.7%+23.4%
ROCEReturn on capital employed+2.6%-101.1%+11.3%+25.1%
Piotroski ScoreFundamental quality 0–94159
Debt / EquityFinancial leverage1.23x0.00x1.09x
Net DebtTotal debt minus cash$7M-$2M-$154M$17.0B
Cash & Equiv.Liquid assets$2M$2M$155M$7.6B
Total DebtShort + long-term debt$9M$0$595,169$24.6B
Interest CoverageEBIT ÷ Interest expense-21.60x8.87x
GILD leads this category, winning 5 of 9 comparable metrics.

Total Returns (Dividends Reinvested)

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

A $10,000 investment in GILD five years ago would be worth $22,418 today (with dividends reinvested), compared to $16 for IBO. Over the past 12 months, GILD leads with a +38.8% total return vs SIGA's +1.5%. The 3-year compound annual growth rate (CAGR) favors GILD at 22.2% vs IBO's -88.3% — a key indicator of consistent wealth creation.

MetricIBO logoIBOImpact BioMedical…NNVC logoNNVCNanoViricides, In…SIGA logoSIGASIGA Technologies…GILD logoGILDGilead Sciences, …
YTD ReturnYear-to-date+19.0%+17.4%-15.0%+10.9%
1-Year ReturnPast 12 months+21.0%+14.5%+1.5%+38.8%
3-Year ReturnCumulative with dividends-99.8%+10.9%+22.2%+82.4%
5-Year ReturnCumulative with dividends-99.8%-60.9%+1.4%+124.2%
10-Year ReturnCumulative with dividends-97.5%-95.5%+764.0%+87.8%
CAGR (3Y)Annualised 3-year return-88.3%+3.5%+6.9%+22.2%
GILD leads this category, winning 4 of 6 comparable metrics.

Risk & Volatility

Evenly matched — IBO and GILD each lead in 1 of 2 comparable metrics.

IBO is the less volatile stock with a 0.12 beta — it tends to amplify market swings less than NNVC's 1.34 beta. A beta below 1.0 means the stock typically moves less than the S&P 500. GILD currently trades 85.2% from its 52-week high vs IBO's 31.7% drawdown — a narrower gap to the peak suggests stronger recent price momentum.

MetricIBO logoIBOImpact BioMedical…NNVC logoNNVCNanoViricides, In…SIGA logoSIGASIGA Technologies…GILD logoGILDGilead Sciences, …
Beta (5Y)Sensitivity to S&P 5000.12x1.34x1.15x0.66x
52-Week HighHighest price in past year$1.95$2.23$9.62$157.29
52-Week LowLowest price in past year$0.36$0.85$4.29$95.30
% of 52W HighCurrent price vs 52-week peak+31.7%+63.7%+49.2%+85.2%
RSI (14)Momentum oscillator 0–10049.567.047.052.6
Avg Volume (50D)Average daily shares traded4.5M249K688K5.8M
Evenly matched — IBO and GILD each lead in 1 of 2 comparable metrics.

Analyst Outlook

Evenly matched — SIGA and GILD each lead in 1 of 2 comparable metrics.

Analyst consensus: SIGA as "Buy", GILD as "Buy". For income investors, SIGA offers the higher dividend yield at 12.73% vs GILD's 2.38%.

MetricIBO logoIBOImpact BioMedical…NNVC logoNNVCNanoViricides, In…SIGA logoSIGASIGA Technologies…GILD logoGILDGilead Sciences, …
Analyst RatingConsensus buy/hold/sellBuyBuy
Price TargetConsensus 12-month target$161.88
# AnalystsCovering analysts158
Dividend YieldAnnual dividend ÷ price+12.7%+2.4%
Dividend StreakConsecutive years of raises12411
Dividend / ShareAnnual DPS$0.60$3.19
Buyback YieldShare repurchases ÷ mkt cap0.0%0.0%0.0%+1.2%
Evenly matched — SIGA and GILD each lead in 1 of 2 comparable metrics.
Key Takeaway

GILD leads in 3 of 6 categories (Income & Cash Flow, Profitability & Efficiency). SIGA leads in 1 (Valuation Metrics). 2 tied.

Best OverallGilead Sciences, Inc. (GILD)Leads 3 of 6 categories
Loading custom metrics...

IBO vs NNVC vs SIGA vs GILD: Key Questions Answered

10 questions · data-driven answers · updated daily

01

Is IBO or NNVC or SIGA or GILD a better buy right now?

For growth investors, Gilead Sciences, Inc.

(GILD) is the stronger pick with 2. 4% revenue growth year-over-year, versus -31. 8% for SIGA Technologies, Inc. (SIGA). SIGA Technologies, Inc. (SIGA) offers the better valuation at 14. 3x trailing P/E (2. 8x forward), making it the more compelling value choice. Analysts rate SIGA Technologies, Inc. (SIGA) a "Buy" — based on 1 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 — IBO or NNVC or SIGA or GILD?

On trailing P/E, SIGA Technologies, Inc.

(SIGA) is the cheapest at 14. 3x versus Gilead Sciences, Inc. at 19. 8x. On forward P/E, SIGA Technologies, Inc. is actually cheaper at 2. 8x.

03

Which is the better long-term investment — IBO or NNVC or SIGA or GILD?

Over the past 5 years, Gilead Sciences, Inc.

(GILD) delivered a total return of +124. 2%, compared to -99. 8% for Impact BioMedical Inc. (IBO). Over 10 years, the gap is even starker: SIGA returned +764. 0% versus IBO's -97. 5%. 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 — IBO or NNVC or SIGA or GILD?

By beta (market sensitivity over 5 years), Impact BioMedical Inc.

(IBO) is the lower-risk stock at 0. 12β versus NanoViricides, Inc. 's 1. 34β — meaning NNVC is approximately 973% more volatile than IBO relative to the S&P 500. On balance sheet safety, SIGA Technologies, Inc. (SIGA) carries a lower debt/equity ratio of 0% versus 123% for Impact BioMedical Inc. — giving it more financial flexibility in a downturn.

05

Which is growing faster — IBO or NNVC or SIGA or GILD?

By revenue growth (latest reported year), Gilead Sciences, Inc.

(GILD) is pulling ahead at 2. 4% versus -31. 8% for SIGA Technologies, Inc. (SIGA). On earnings-per-share growth, the picture is similar: Gilead Sciences, Inc. grew EPS 1684% year-over-year, compared to -60. 2% for SIGA Technologies, Inc.. Over a 3-year CAGR, IBO leads at 259. 9% 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 — IBO or NNVC or SIGA or GILD?

Gilead Sciences, Inc.

(GILD) is the more profitable company, earning 28. 9% net margin versus -88. 0% for Impact BioMedical Inc. — meaning it keeps 28. 9% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: GILD leads at 40. 1% versus 0. 0% for NNVC. At the gross margin level — before operating expenses — IBO leads at 100. 0%, 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 IBO or NNVC or SIGA or GILD more undervalued right now?

On forward earnings alone, SIGA Technologies, Inc.

(SIGA) trades at 2. 8x forward P/E versus 15. 7x for Gilead Sciences, Inc. — 12. 9x cheaper on a one-year earnings basis.

08

Which pays a better dividend — IBO or NNVC or SIGA or GILD?

In this comparison, SIGA (12.

7% yield), GILD (2. 4% yield) pay a dividend. IBO, NNVC do not pay a meaningful dividend and should not be held primarily for income.

09

Is IBO or NNVC or SIGA or GILD better for a retirement portfolio?

For long-horizon retirement investors, SIGA Technologies, Inc.

(SIGA) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 1. 15), 12. 7% yield, +764. 0% 10Y return). Both have compounded well over 10 years (SIGA: +764. 0%, NNVC: -95. 5%), 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 IBO and NNVC and SIGA and GILD?

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: IBO is a small-cap quality compounder stock; NNVC is a small-cap quality compounder stock; SIGA is a small-cap deep-value stock; GILD is a mid-cap quality compounder stock. SIGA, GILD pay a dividend while IBO, NNVC do not, making them suitable for different income and tax situations. 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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IBO

Quality Business

  • Sector: Healthcare
  • Market Cap > $100B
  • Gross Margin > 60%
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  • Market Cap > $100B
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  • Sector: Healthcare
  • Market Cap > $100B
  • Gross Margin > 37%
  • Dividend Yield > 5.0%
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  • Sector: Healthcare
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