Strata — Phase 2

"Stop losing sleep over hacks. Take the Senior tranche."

Strata is Dawn Labs' next product: a tranched yield vault on Solana designed for institutional depositors. By splitting a single underlying strategy into Senior and Junior tranches, Strata structurally separates risk and return — putting institutions into the protected tier and risk-tolerant LPs into the high-yield tier.

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Why Now

Since the Drift hack (2025), institutional capital has largely stayed out of DeFi vaults. The common objection: "We can't get internal approval when total-loss risk exists." Strata answers this directly. Junior depositors absorb losses first; Senior depositors are protected until Junior NAV reaches zero. This is the on-chain equivalent of a CLO (Collateralized Loan Obligation) — a structure that has worked in traditional finance for decades.

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Two Layers

Layer 1 — Risk: Senior / Junior Tranche

	Senior Vault	Junior Vault
Return	8% fixed (capped)	Variable — all residual upside
Loss priority	Last to absorb	First-loss buffer
Withdrawal	Instant	7-day lock
Target	Institutions, stable-yield seekers	High-yield seekers, risk-tolerant LPs

Accounting Waterfall (exit priority):

Senior payout = user_senior_share × min(total_nav, senior_total_deposits)
Junior payout = user_junior_share × max(total_nav - senior_total_deposits, 0)

• Profit scenario: Senior receives 8% fixed first → remaining distributed to Junior

• Loss scenario: Junior NAV is drawn down first → Senior is protected until Junior is fully wiped

Layer 2 — Strategy: Base / Alpha / DN

	Base Layer	Alpha Layer	DN Layer
Strategy	Kamino Lending	Kamino Multiply	SOL Delta-Neutral
Yield	~5–7% (stable)	~14–16% (primary)	Variable (funding rate dependent)
Activation	Always (overflow)	Always (primary)	SOL funding rate > 10% for 3+ days
Risk	Low	Medium (leveraged)	Medium (hedged)

Capital allocation priority: concentrate in Alpha (Multiply) → overflow excess into Base (Lending) → activate DN conditionally.

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Architecture

[Dawn Senior Vault]     [Dawn Junior Vault]
        │                       │
        └───────────┬───────────┘
                    ▼
        Dawn Tranche Program (Anchor)
        · NAV tracking
        · Waterfall accounting
        · Withdrawal priority enforcement
                    │  (single capital pool)
                    ▼
        Ranger Vault (execution layer)
        ├─ Kamino Multiply adaptor  (Alpha Layer / primary)
        └─ Kamino Lending adaptor   (Base Layer / overflow)

Tech stack:

• Anchor (Dawn Tranche Program): Issues Senior-LP / Junior-LP tokens, applies waterfall math at withdrawal

• Ranger Finance (Vault-as-a-Service infrastructure)

  • withdrawal_waiting_period natively implements the 7-day Junior lock

  • CPI: deposit_vault / request_withdraw_vault / withdraw_vault / instant_withdraw

• Kamino Finance: Multiply + Lending adaptors

Key design insight: Ranger manages a single asset-per-share ratio across all LPs in a vault. The Tranche Program sits between Ranger and end users — it holds Ranger LP tokens as an intermediary, then applies its own waterfall math at withdrawal to distribute unequally to Senior vs. Junior depositors. Senior gets the protected slice; Junior gets what's left.

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Junior Bootstrap

Initial Junior capital is provided by Dawn Labs itself.

• Puts Dawn Labs' own money at first-loss, signaling skin-in-the-game to Senior LPs

• As track record accumulates, external Junior LPs seeking high yield can be onboarded

• At hackathon demo stage, Dawn Labs capital fully covers the Junior tranche

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Competitive Landscape

TradFi Precedents

• CDO / CLO: Mortgages and leveraged loans tranched into AAA (Senior) through Equity (Junior). Strata is the on-chain CLO equivalent.

• Real estate preferred/subordinate structures (common in Japan): Priority investor (principal protected) / subordinate investor (absorbs losses first, captures upside). Identical structure.

Crypto Precedents (Failed)

• Barnbridge (Ethereum, 2021): SMART Yield split Compound yields into Senior/Junior. $178M TVL → collapsed when low interest rates made the fixed Senior rate unsustainable.

• Saffron Finance (Ethereum, same era): Same structure, same failure mode.

Direct Solana Competitor

• Kormos (Cypherpunk Sep 2025, DeFi 2nd place, C4 accelerator)

  • Structure: Liquid depositor (Junior-like) / Locked depositor (Senior-like)

  • Narrative: "Fractional reserve banking on DeFi"

  • Key difference: Locked = first-loss — the tranche direction is inverted. Not targeting institutions or explicit total-loss protection.

Strata's Differentiation

1. Narrative: Directly responds to the Drift-hack-era "total-loss risk kills institutional approval" pain point

2. Target customer: Institutions in the Senior tranche — designed to pass internal investment committees

3. Yield headroom: Kamino Multiply (~16%) provides enough raw yield for Senior 8% fixed to be sustainable — the failure mode of Barnbridge

4. Operating track record: Dawn Labs runs Phase 1 Vault on live capital; strategy and risk management credibility already exists

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Open Questions / Todo

• Anchor program detailed design — how much NAV calculation lives on-chain vs. off-chain

• Ranger Vault Owner registration and adaptor configuration steps (to confirm with Ranger team)

• CPI routing feasibility — can a single Anchor program hold Ranger LP tokens for two separate depositor pools?

• Resolve potential conflicts: locked profit degradation timing vs. Senior 8% payout, HWM fee accrual vs. Tranche-side accounting

• Junior external onboarding: timing, eligibility, and minimum size design

• Pitch deck creation