Rallybio

RLYBNASDAQUSD

THESIS ALERT

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$15.80
+$0.04 (+0.25%)Today 1M −7.17%
After hours$15.70−0.63%

Updated Nov 11, 4:00 PM ET · Regular session · May be delayed

Source valuation snapshot. Not a live recalculation.
Latest filed annual earnings; price snapshot date unavailable. Not forward P/E.
Diluted earnings per share from the latest filed annual.
$15.76
Prior regular-session close from the quote source.
$15.50–$15.86
Regular-session low and high so far today.
44.5K
Regular-session shares traded · Nov 11, 4:00 PM ET.
Not yet confirmed
The company has not confirmed its next report date. Reported quarters are available in the chart’s Earnings view.
$3.67–$17.57
52-week trading low and high returned by the quote source.

Understand the Business

Why the Stock Moved

Period-matched expectations history is not yet available. Current metrics are not a substitute for a historical explanation.

The core investment thesis

Own RLYB if Rallybio can create value by advancing and monetizing its lead rare‑disease programs while using the March 2026 merger with Candid and the $505.5M concurrent financing to transform into a better‑funded combined biotech platform focused.

RLYB price history

Latest price$15.80Today+$0.04 (+0.25%)
RLYB -6.67%S&P 500 -2.42%Since first plotted close
4 hours

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Investment thesis

What must happen next

4 MATERIAL PROPOSITIONS
  • The Merger with Candid and the $505.5M Concurrent Financing are the decisive capital event: if they close as structured, Rallybio will have the funding to advance multiple programs without urgent dilutive raises.HoldingMateriality: High

    cash increased from $13,903,000 (2024) to $31,374,000 (2025), showing recent financing/asset proceeds improved liquidity. If true, shareholders get funded clinical development and optionality from Candid's TCE pipeline; if false, the company will face repeated dilutive financings or asset sales that compress equity value.

    Watch: The Merger fails to close or the Concurrent Financing is not fully subscribed/converted.

    Supporting sources

    Source notes are factual paraphrases; read the original disclosures below.

    cash increased from $13,903,000 (2024) to $31,374,000 (2025), showing recent financing/asset proceeds improved liquidity.

    Open source ↗
  • Monetization of legacy assets and milestone receipts (including the Recursion/ENPP1 sale) is a real and repeatable way Rallybio can create non‑dilutive value and fund R&D through contingent payments and CVR proceeds.StrengtheningMateriality: High

    assets declined from $115,620,000 (2023) to $68,108,000 (2024) to $62,261,000 (2025), consistent with dispositions. If the company can continue to extract milestone and disposition proceeds, shareholders can benefit without immediate equity dilution; if such monetizations dry up or are smaller than expected, the company will be forced to dilute or cut programs.

    Watch: Failure to realize the expected $5M Phase 1 milestone or future royalties from Recursion.

    Supporting sources

    Source notes are factual paraphrases; read the original disclosures below.

    assets declined from $115,620,000 (2023) to $68,108,000 (2024) to $62,261,000 (2025), consistent with dispositions.

    Open source ↗
  • Rallybio's operations are structurally cash‑consumptive (negative operating cash flow) and therefore require external capital, asset monetization, or a successful Merger to sustain program advancement.StrengtheningMateriality: Medium

    operating_cash_flow was negative $29,813,000 for 2025, after larger negative cash flows in 2024 (-$49,282,000) and 2023 (-$60,265,000). Sustained negative operating cash flow without offsetting financing forces dilution or program cuts; conversely, a reduction in burn or new non‑dilutive receipts preserves equity value.

    Watch: A new large partnership or product revenue stream that produces sustained positive operating cash flow.

    Supporting sources

    Source notes are factual paraphrases; read the original disclosures below.

    operating_cash_flow was negative $29,813,000 for 2025, after larger negative cash flows in 2024 (-$49,282,000) and 2023 (-$60,265,000).

    Open source ↗
  • Clinical validation of RLYB116 (and later programs) is the primary value driver because positive PK/PD and PoC would convert R&D programs into partnerable assets and milestone streams.HoldingMateriality: Medium

    net_income improved to -$8,978,000 in 2025 from much larger losses prior years, reflecting one‑time monetization receipts tied to development progress and asset dispositions. If trials show RLYB116 is differentiated and reaches PoC, the company can obtain partnerships or higher valuations; if trials fail or are not differentiating, the asset's value collapses and monetization becomes unlikely.

    Watch: Negative clinical data from RLYB116 or a competitor demonstrating superior C5 inhibition reducing RLYB116's differentiation.

    Supporting sources

    Source notes are factual paraphrases; read the original disclosures below.

    net_income improved to -$8,978,000 in 2025 from much larger losses prior years, reflecting one‑time monetization receipts tied to development progress.

    Open source ↗
Full investment case & evidence

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Original research

The Merger with Candid and the $505.5M Concurrent Financing are the decisive capital event: if they close as structured, Rallybio will have the funding to advance multiple programs without urgent dilutive raises. If true, shareholders get funded clinical development and optionality from Candid's TCE pipeline; if false, the company will face repeated dilutive financings or asset sales that compress equity value.

Monetization of legacy assets and milestone receipts (including the Recursion/ENPP1 sale) is a real and repeatable way Rallybio can create non‑dilutive value and fund R&D through contingent payments and CVR proceeds. If the company can continue to extract milestone and disposition proceeds, shareholders can benefit without immediate equity dilution; if such monetizations dry up or are smaller than expected, the company will be forced to dilute or cut programs.

Rallybio's operations are structurally cash‑consumptive (negative operating cash flow) and therefore require external capital, asset monetization, or a successful Merger to sustain program advancement. Sustained negative operating cash flow without offsetting financing forces dilution or program cuts; conversely, a reduction in burn or new non‑dilutive receipts preserves equity value.

Clinical validation of RLYB116 (and later programs) is the primary value driver because positive PK/PD and PoC would convert R&D programs into partnerable assets and milestone streams. If trials show RLYB116 is differentiated and reaches PoC, the company can obtain partnerships or higher valuations; if trials fail or are not differentiating, the asset's value collapses and monetization becomes unlikely.

All standing thesis claims
Original report summary

Rallybio can create value by advancing and monetizing its lead rare‑disease programs while using the March 2026 merger with Candid and the $505.5M concurrent financing to transform into a better‑funded combined biotech platform focused.

Evidence assessed Nov 9, 2026. Expand each conclusion for its evidence and what would change it. Thesis evidence—not a buy or sell recommendation.

Bull case and bear case

Bull case and bear case for Rallybio

Where the evidence on Rallybio stands: Holding on the latest evidence (Nov 9, 2026). Of its 4 thesis points, 2 strengthening and 2 holding.

Bull case: what the evidence supports

  • The Merger with Candid and the $505.5M Concurrent Financing are the decisive capital event: if they close as structured, Rallybio will have the funding to advance multiple programs without urgent dilutive raises.

    sec.gov ↗

  • Monetization of legacy assets and milestone receipts (including the Recursion/ENPP1 sale) is a real and repeatable way Rallybio can create non‑dilutive value and fund R&D through contingent payments and CVR proceeds.

    sec.gov ↗

  • Rallybio's operations are structurally cash‑consumptive (negative operating cash flow) and therefore require external capital, asset monetization, or a successful Merger to sustain program advancement.

    sec.gov ↗

  • Clinical validation of RLYB116 (and later programs) is the primary value driver because positive PK/PD and PoC would convert R&D programs into partnerable assets and milestone streams.

    sec.gov ↗

Bear case: what would count against it

  • The Merger fails to close or the Concurrent Financing is not fully subscribed/converted.

    sec.gov ↗

  • Failure to realize the expected $5M Phase 1 milestone or future royalties from Recursion.

    sec.gov ↗

  • A new large partnership or product revenue stream that produces sustained positive operating cash flow.

    sec.gov ↗

Thesis-Break Engine

Thesis-break watch · Rallybio

12 mo agonow
Trailing daily price. No thesis break has crossed here, so there is no break base rate to project.

No break has crossed Rallybio’s thesis. Its break conditions are checked against every new filing as it lands.

How the Thesis-Break Engine works →Historical outcomes are measured against the market after past breaks of the same kind, across all companies. Not a prediction.

MARKET + FINANCIAL SNAPSHOT

The numbers behind the thesis

Sourced from filings and market data

What Changed

  1. Mixed
    Other material event.

    Rallybio filed an SEC 8-K on 2026-11-06: Other material event. It is a dated development that tests the current thesis.

  2. Mixed
    Director or principal officer change.

    Rallybio filed an SEC 8-K on 2026-11-04: Director or principal officer change. It is a dated development that tests the current thesis.

  3. Mixed
    Other material event.

    Rallybio filed an SEC 8-K on 2026-10-26: Other material event. It is a dated development that tests the current thesis.

Risks / falsifiers

What could break the thesis

  • The Merger fails to close or the Concurrent Financing is not fully subscribed/converted.
  • Failure to realize the expected $5M Phase 1 milestone or future royalties from Recursion.
  • A new large partnership or product revenue stream that produces sustained positive operating cash flow.
  • Negative clinical data from RLYB116 or a competitor demonstrating superior C5 inhibition reducing RLYB116's differentiation.

RLYB news

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Financial statements

RLYB income statement

Annual filed results · USD · Oldest to newest. Margins are calculated from the reported figures.

RLYB: quick answers

What is RLYB's short interest?
As of October 30, 2026, 39,026 RLYB shares were sold short, 0.72% of its shares outstanding, down 4.7% from the count before. At the stock's average daily volume that is 1.2 days to cover. FINRA publishes the count twice a month. RLYB short interest history
Which well-known investors own RLYB?
1 of the 37 well-known funds tracked here reported RLYB shares in their latest 13F filing. By share of the fund's portfolio: Viking Global Investors (Andreas Halvorsen), 0.0%. Fund portfolios

RLYB in well-known investors’ portfolios

1 of 37 funds reported RLYB shares in their latest 13F filing. A 13F shows quarter-end positions and arrives up to 45 days later.

FundOf its portfolioValueChangeQuarter
Andreas HalvorsenViking Global Investors0.02%$8.4MNo changeQ2 2026

Every fund’s portfolio

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