WallStSmart
XFOR

X4 Pharmaceuticals Inc

NASDAQ: XFOR · HEALTHCARE · BIOTECHNOLOGY

$4.07
-0.73% today

Updated 2026-04-30

Market cap
$374.59M
P/E ratio
P/S ratio
10.67x
EPS (TTM)
$-1.87
Dividend yield
52W range
$1 – $5
Volume
0.5M

X4 Pharmaceuticals Inc (XFOR) Stock Valuation Analysis

Fair value estimate, historical valuation range, and quality signals for XFOR.

WallStSmart Verdict
Overvalued

Current price exceeds what fundamentals support. Risk/reward skewed unfavorably.

Smart Value Score: 33 / 100
P/E (TTM)
Not meaningful for this profile
PEG
Margin of Safety
+88.62%
Fair value $30.14 vs $4.07
EV / EBITDA
1.1x

XFOR historical valuation range

Where current P/E sits in XFOR's own 5Y range.

Insufficient historical data for 5Y percentile analysis

XFOR intrinsic value (DCF)

DCF-based fair value estimate vs current market price.

Current price
$4.07
Market value
Intrinsic value
$30.14
DCF estimate
Margin of safety
+88.62%
+640.5% upside to fair value

Intrinsic value calculated using discounted cash flow (DCF) model based on projected free cash flows, discount rate, and terminal growth assumptions. A positive margin of safety indicates the current price is below estimated fair value, providing a cushion against estimation error.

XFOR valuation signals

Quick-read green flags, caution flags, and risks based on current metrics.

Strong margin of safety
Current price 88.6% below DCF intrinsic value estimate. Meaningful downside cushion.
Weak financial quality
Piotroski F-Score of 0/9 suggests deteriorating fundamentals. Valuation requires closer scrutiny.

P/E Ratio — History

P/S Ratio — History

Current: 10.67x

Is XFOR overvalued in 2026?

X4 Pharmaceuticals Inc (XFOR) currently trades at $4.07 per share with a market capitalization of $374,589,000.00. Based on our multi-factor framework, the stock appears richly valued with a Smart Value Score of 33/100. This score blends growth quality, financial health, and price attractiveness into a single institutional-grade read.

XFOR currently has no meaningful P/E ratio, which typically signals that the company is unprofitable, near breakeven, or emerging from a loss-making period. With a P/S ratio of 10.7x, the market is valuing the company primarily on its revenue rather than its earnings.

Our discounted cash flow model estimates XFOR's intrinsic value at $30.14 per share, against the current market price of $4.07. This implies a margin of safety of +88.62%. A meaningful cushion exists against model error, making this a reasonable risk-adjusted entry.

Financial quality is a concern. The Piotroski F-Score of 0/9 flags weakening fundamentals that deserve closer scrutiny before the valuation case can be fully trusted.

Bottom line: XFOR appears richly valued on our framework, with a Smart Value Score of 33/100. At current levels the risk/reward is skewed against the buyer. A materially lower price or significant operational improvement would be needed to change the picture.

Frequently asked questions

Is XFOR overvalued in 2026?

Based on a Smart Value Score of 33/100, XFOR appears overvalued. Current price exceeds what fundamentals currently justify.

What is XFOR's fair value?

Our DCF model estimates XFOR's intrinsic value at $30.14 per share, versus the current price of $4.07. This produces a margin of safety of +88.62%.

What P/E ratio does XFOR trade at?

XFOR does not have a meaningful P/E ratio at this time, typically a sign of unprofitability or an ongoing earnings transition.

Is XFOR a buy based on valuation?

WallStSmart does not issue buy or sell recommendations. Our Smart Value Score of 33/100 reflects the combined read on growth, quality, and price. The profile skews cautious. Consider waiting for a better price or clearer operational improvement.

How does XFOR's valuation compare to its history?

Insufficient historical valuation data exists yet for a confident percentile read on XFOR.

What is XFOR's Smart Value Score?

XFOR's Smart Value Score is 33/100. The Smart Value Score is a proprietary WallStSmart metric blending growth quality, financial health, and valuation attractiveness into a single 0-100 read. Scores above 75 are rare and indicate strong multi-factor alignment.