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Equillium Inc (EQ) fair value: what the stock is really worth

As of Nov 6, 2026: fair value (intrinsic value) of Equillium Inc stock $0.37, price $1.51, that is 75.8% below the price, quality 29 out of 100. Rating: strongly overvalued. Calculated from audited financials with one of our 26 valuation models and 37 quality factors, updated daily.

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Healthcare US

EI Equillium Inc logo Thin data Nov 8, 2026

Equillium Inc

EQ · US
Very expensive, weak quality

Our calculation puts a fair price 76% below what the stock costs today.

Low debt
Positive coverage
Insiders sold $1.2M (6M)
Revenue last quarter 52% below a year ago.
Fair value $0.3655 · Strongly overvalued (−75.8%)
Quality 29/100
Weak Growth (revenue 3y −79.8 %/yr in USD)
Negative free cash flow
Trails peers (1/9)
Narrow moat 9/100
Thin data
⚠ Dilution
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What runs behind every stock

69 individual criteria per stock, every one traceable See the method →

Price vs Fair Value

$6.99 $0.2900 Fair Value $0.3655 Aug 2021 Nov 2026

White line = price, green steps = our fair value per fiscal year. As of Nov 8, 2026.

How to read this chart

60‑month range $0.2900 – $6.99 · fair‑value band $0.2380 – $0.4505 · the $1.51 price screens above the $0.3655 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). As of Nov 8, 2026.

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Company profile

Equillium, Inc., a clinical-stage biotechnology company, develops therapeutics to treat severe autoimmune and inflammatory, or immuno-inflammatory disorders in the United States.

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The company develops EQ504, a novel AhR modulator that is in preclinical-stage for the treatment of ulcerative colitis and lung inflammation diseases. It also develops EQ302, a bi-specific inhibitor of IL-15 and IL-21 formulated for oral delivery for the treatment of celiac diseases.

The company was formerly known as Attenuate Biopharmaceuticals, Inc. and changed its name to Equillium, Inc. in May 2017. Equillium, Inc. was incorporated in 2017 and is headquartered in La Jolla, California.

Stock analysis

Equillium Inc (EQ) currently trades at $1.51, while our model-based Fair Value estimate is $0.3655, 76% below the price, so the stock looks overvalued today.

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Valuation

How firm this estimate is: it rests on 1 models at a data quality of 96/100, which puts the data coverage at low.

Scenario range: $0.2380 (bear) to $0.4505 (bull), the price of $1.51 sits above it. Bear and bull are the same models on cautious and optimistic assumptions, a range, not a price target.

Quality & growth

The Quality Score stands at 29/100 (below-average quality), in the Healthcare sector.

Weak Growth: Revenue is shrinking: the last year, the last three and the last five years are all negative.

Equillium Inc reported revenue of $130K in FY2025 versus $0 in FY2021. Reported net income was −$22.4M in FY2025.

Key figures

Market cap $169M Micro · P/S ratio 19.6 · EPS (TTM) $−0.1400 · Return on equity −59.0% · Return on assets (EBIT) −51.7% (5-year average) · Revenue growth (YoY) −52.3% · Free cash flow −$22.8M · Net cash $29.6M.

Competitive moat

Our AI-assisted moat analysis scores the competitive advantage at 9 out of 100 (medium confidence).

What moves the price

The share trades about 53% below its 52-week high and 80% above its 52-week low, currently below its 200-day average.

For context, the median of 10 Healthcare peers we cover trades at 10% fair-value upside, at −76%, EQ screens richer than that median.

Fair Value models

Bear $0.2380 Fair Value $0.3655 Bull $0.4505
Price $1.51 · Downside -75.8%
Model ⓘEach model values the company its own way (discounted cash flow, earnings, assets, dividends). The fair value above starts from their evidence-weighted blend, not from a single model. In cyclical trough or peak years, after dilution or a stock split it is adjusted afterwards, so it can sit above or below the models. Bear ⓘBear = the cautious scenario: the same model computed with conservative anchors (lower growth, margins and valuation multiples). Together with Bull it frames a plausible valuation range, not a price target.BaseBull ⓘBull = the optimistic scenario: the same model computed with favourable anchors (higher growth, margins and valuation multiples). Together with Bear it frames a plausible valuation range, not a price target. If a model's bull case is above four times its base value, the table shows that limit with a > sign (like the overall Bull above): beyond it no assumption holds. Coverage ⓘCoverage = how well-backed THIS model's estimate is for this stock (0–100): how complete and reliable its input data are, and how well the model fits the company. The final Fair Value is an evidence-weighted blend, so better-evidenced models count more. Green ≥70, amber 50–69, grey below 50.
Best data coverage
NCAV (Graham) $0.2800 $0.4300 $0.5300 55
All 1 models by family
Asset-Based
NCAV (Graham) $0.2800 $0.4300 $0.5300 55

The fair value above starts from this blend and is adjusted for dilution from new shares.

Open the full fair value analysis →

Quality Score breakdown

Overall quality 29/100

It rates the business: profits, how they develop, real cash, balance sheet, investing and share count.

Profitability 0
How much profit the company makes from its sales and capital
Quality Growth 0
Are margins and returns getting better?
Cashflow 12
Do the profits arrive as real cash?
Financial strength 96
Debt, balance sheet and risk of trouble
Investment 67
Does it invest with discipline instead of growing at any price?
Low Volatility 0
How calm the share price moves, does not count
Price momentum 21
Price momentum of the last 3 to 12 months, does not count
Near the 52-week high 42
Distance to the 52-week high, does not count
New shares 0
Buys back shares or issues new ones?

Open the full quality analysis →

Insider trades

In the last 6 months, 3 officers or directors sold shares worth $1.2M and none bought.

  • SaleStephen ConnellyPresident and CSO230,975 shares at $3.13$723,067Jun 5, 2026
  • SaleChristine ZedelmayerSr. Vice President and COO8× since Nov 25, 2025: 741,687 shares, avg. $2.03$1.5MJun 5, 202610b5-1 plan
  • SalePenny TomPrincipal Accounting Officer2× since Jan 8, 2026: 71,533 shares, avg. $2.80$200,178May 28, 202610b5-1 plan

Plus 3 other filings such as grants, option exercises or tax withholding. They are not market purchases or sales.

Sales are often planned (taxes, diversification, 10b5-1 plans). Purchases with their own money are seen as the stronger sign. For information only: not part of the quality score or Fair Value.

Source: SEC Form 4, as of Nov 6, 2026. All filings at the SEC ↗

Revenue & earnings trend

Growth Quality ⓘGrowth is valuable only when reinvestment earns attractive returns (Aswath Damodaran): sustainable growth depends on return on capital, reinvestment and efficiency. Basis: total company revenue over the periods shown on the cards (3Y/5Y/all years), not per share, so a merger can show up as a growth jump; per-share earnings growth is in the value-creation card. 0/100
Revenue is shrinking: the last year, the last three and the last five years are all negative.
Revenue growth 1 year
−99.7%
Revenue growth 3 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
−79.8%
Profit margin (trend) ⓘOperating margin then vs now, from reported annual statements. A falling margin after a boom year is the classic peak-earnings signal: the growth rate then leans on an inflated base.
−393.9% (2022) → −18,180.0% (2025)
What shareholders gained per year ⓘWe only publish this rate when it is defensible. Reason: fiscal 2025 is a loss year, no rate is defined from a loss
not computed

EQ screens overvalued: fair value 76% below the price. Compare with Vertex Pharmaceuticals Incorporated →

Earlier news

News mood ⓘNews mood, the average tone of recent news (91 articles), rated against how stocks are usually covered. 🚀 Hype = unusually upbeat · 🙂 Positive = above average · 😐 Neutral = typical · 🙁 Negative = below average · 😨 Very negative = unusually downbeat. It reflects the tone of coverage, not our valuation. Positive
Recent news coverage is more positive than average.

Compare Equillium Inc with another stock

Price, fair value, quality and upside side by side.

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Peer GroupⓘHow this stock ranks against its industry: the green marker is this stock, the band is the typical 25–75% peer range, and the tick is the median.Biotechnology · 558 stocks

Beats the industry median on 1/8 measures
Overall it trails its industry peers.
Valuation
Quality Score 29 · Bottom 25%
Fair Value upside −75.8% · Bottom 25%
Profitability
Return on assets −70.2% · Bottom 25%
Operating margin (12 months) 0.0% · Above median
Growth and dividend
Revenue growth (quarter YoY) −52.3% · Bottom 25%
Balance sheet
Debt / equity 0.11× · Above median

Valuation Multiplesvs Biotechnology median · lower = cheaper

P/B 5.90× · Priciest 25%
P/S (12 months) 38.44× · Priciest 25%

Strength profile in five axes (Snowflake)

VALUEFUTUREPASTHEALTHDIVIDEND
This stock
VALUEFUTUREPASTHEALTHDIVIDEND
Sector peers
VALUE (fair-value potential)0 · sector 0
FUTURE (revenue growth)0 · sector 0
PAST (return on equity)0 · sector 0
HEALTH (low debt)94 · sector 97
DIVIDEND (yield)0 · sector 22

VALUE 0: the price sits above our fair-value range.

Context: sector, industry, market

Values & ESG

Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.

None of the checked exposures detected

Similar stocks

10 more Biotechnology stocks, each showing price versus our Fair Value estimate.

Stock Price Fair Value vs Fair Value Compare
Incyte Corporation INCY $119.65 $199.23 +67% vs EQ
Regeneron Pharmaceuticals, Inc REGN $904.35 $1,275 +41% vs EQ
Genmab A/S GMAB kr 3,527 kr 3,999 +13% vs EQ
Samsung Biologics Co 207940 1,516,000 KRW 1,667,600 KRW +10% vs EQ
WuXi Biologics (Cayman) Inc 2269 HK$47.62 HK$52.38 +10% vs EQ
Vertex Pharmaceuticals Incorporated VRTX $547.09 $596.75 +9% vs EQ
argenx SE ARGX $927.21 $908.40 −2% vs EQ
CSL Limited CSL A$202.04 A$183.04 −9% vs EQ
Celltrion, Inc 068270 211,000 KRW 74,945 KRW −64% vs EQ
Royalty Pharma plc RPRX $67.30 $19.01 −72% vs EQ

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Equillium Inc: fair value per Fair Value Calculator

Cite: Fair Value Calculator (2026). "Equillium Inc Fair Value". https://www.fairvalue-calculator.com/stock/EQ

Frequently asked questions

Is Equillium Inc (EQ) overvalued or undervalued?
As of Nov 8, 2026, our model estimates a fair value of $0.3655 versus a price of $1.51, about 76% lower (overvalued).
What is the fair value of EQ?
Our model-based fair value for Equillium Inc is $0.3655 (as of Nov 8, 2026), built from audited fundamentals. The current price: $1.51.
What is the quality score of EQ?
Equillium Inc has a Quality Score of 29/100. It measures business quality (profitability, growth, cash flow, balance-sheet strength, investment discipline, share issuance). Market factors such as price momentum and volatility do not enter the number; they are shown separately in the detail view.
What is the price target for Equillium Inc (EQ)?
Our model-based price target is the fair value of $0.3655 (as of Nov 8, 2026) from 1 valuation models. Cautious scenario $0.2380, optimistic scenario $0.4505. It is a calculation from audited fundamentals, not an analyst target.
What is the Equillium Inc stock forecast for 2026?
Our models put fair value at $0.3655, about 76% lower versus a price of $1.51 (overvalued). Cautious scenario $0.2380, optimistic scenario $0.4505. The calculation is refreshed regularly with new filings.
What is the intrinsic value of Equillium Inc (EQ)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For Equillium Inc it is $0.3655 per share (as of Nov 8, 2026), against a price of $1.51. It is the blended result of 1 valuation models in 1 family (Asset-Based).
Is Equillium Inc stock overvalued or undervalued in 2026?
As of Nov 8, 2026, EQ trades above its calculated fair value: price $1.51, fair value $0.3655, a gap of about −76% (overvalued). The calculation is refreshed with each new quarterly report, so the verdict can change during the year.
Is fair value the same as the market price of EQ?
No. The price is what the market pays today ($1.51); the fair value is what the company's own numbers justify ($0.3655). For Equillium Inc the two are $1.14 per share apart. That gap is exactly why we show both numbers side by side.
How much is Equillium Inc worth?
The market values Equillium Inc at about $169M (market capitalisation, as of Nov 8, 2026). Per share that is $1.51; our models calculate a fair value of $0.3655 per share.
What do the bullish and bearish scenarios say about EQ?
Our models span a range for Equillium Inc: cautious scenario $0.2380, base $0.3655, optimistic $0.4505 per share (as of Nov 8, 2026, price $1.51). The range comes from different growth and margin assumptions, not from analyst opinions.
How solid is the balance sheet of Equillium Inc (EQ)?
Balance-sheet figures for Equillium Inc (as of Nov 8, 2026): return on equity −59.0%, debt of 0.11 per unit of equity. They feed the Quality Score of 29/100, which measures business quality independently of the share price.
How far is EQ from its 52-week high?
Equillium Inc trades at $1.51, about 53% below its 52-week high of $3.20 and 80% above the low of $0.8400 (as of Nov 6, 2026). Distance from the high says nothing about value: that is what the fair value of $0.3655 is for.
Which stocks are comparable to Equillium Inc?
From the same area (Healthcare) we also value Vertex Pharmaceuticals Incorporated, Regeneron Pharmaceuticals, Inc, CSL Limited, argenx SE, among others. Each of them has its own fair-value calculation on this site using the same models, so the comparison is like for like.
Is Equillium Inc stock attractive at the current price?
The data as of Nov 8, 2026: price $1.51, calculated fair value $0.3655 (−76%), Quality Score 29/100, from 1 models. Whether that fits your horizon and risk tolerance is your call. We provide the calculation, not investment advice.
How is the fair value of EQ calculated?
We run Equillium Inc through 1 models from 1 family: Asset-Based. Every model gets the same audited fundamentals; the fair value of $0.3655 builds on their evidence-weighted average, with the spread shown as a cautious and an optimistic scenario.
Is it still worth investing in stocks now?
The global stock market currently sits 13.0% above its aggregate fair value. Equillium Inc itself currently trades above fair value. An expensive market is no reason to stay out and no reason to buy everything at once: keep a broad savings plan running, buy single stocks only with money you can do without, and hold part of your money liquid while the market is high. The full picture including sectors is on is it worth investing now.
What is the share price of Equillium Inc (EQ)?
The closing price on Nov 6, 2026 was $1.51. Our model-based fair value is $0.3655, about 76% lower (overvalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with Equillium Inc right now?
The price sits above even our optimistic bull case ($0.4505). The favourable scenario is already priced in. Weak quality (29/100) and above fair value at the same time, the margin of safety is missing on both counts. The large gap to fair value rests on thin data (low evidence): fewer applicable models and a shorter history. Read it with extra caution. A fairly wide model range ($0.2380 to $0.4505) leaves room in how you read the outcome.

Key figures of Equillium Inc

How large is the market capitalisation of Equillium Inc (EQ)?
The market capitalisation of Equillium Inc is $169M. The stock-market value of the whole company: share price times number of shares. It is what the market asks for the entire business today.
What is the P/S ratio of Equillium Inc (EQ)?
The price-to-sales ratio of Equillium Inc is 19.6 (last twelve months). Price to sales: market value relative to yearly revenue. Useful when profit is thin or distorted.
What are the earnings per share of Equillium Inc (EQ)?
Earnings per share at Equillium Inc are $−0.1400. Earnings per share over the last twelve months: total profit spread across every single share.
What is the return on equity of Equillium Inc (EQ)?
The return on equity (ROE) of Equillium Inc is −59.0% (last twelve months). Profit relative to shareholders' equity, how efficiently the company works with its owners' money.
What is the EBIT return on assets of Equillium Inc (EQ)?
On an EBIT basis the return on assets of Equillium Inc is −51.7% (avg 5y). Operating profit (EBIT) relative to everything the company owns, as a multi-year average. It describes the business model rather than one good or bad year.
How fast is revenue growing at Equillium Inc (EQ)?
Revenue at Equillium Inc is growing −52.3% versus a year earlier (3y avg −79.8%). How much revenue grew versus a year earlier (YoY). The 3-year average next to it puts the single year in context.
How much free cash flow does Equillium Inc (EQ) generate?
The free cash flow of Equillium Inc is −$22.8M (fiscal year 2025). The cash truly left after running and investing in the business, this is what pays dividends and buybacks.
How much net cash does Equillium Inc (EQ) hold?
Equillium Inc holds more cash than debt, $29.6M net (fiscal year 2025). The company holds more cash than debt, a safety cushion.
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