Keystone pitches Drift on ksUSD, built on SOL-PERP funding

Keystone Finance has gone public with its plan to build a yield-bearing dollar on top of Drift. In a June 12 governance forum post titled "Keystone × Drift: Turning SOL-PERP Funding Into a Productive Dollar," the team laid out ksUSD — a Solana-native "carry asset" that lets users deposit USDC and earn yield from several on-chain sources at once.

Rather than a treasury request or a formal vote, the proposal is an ecosystem collaboration pitch: Keystone is asking Drift for a technical review, parameter guidance, an open line of communication, and consideration as a partner when Drift's market relaunches with USDT as its settlement currency.

How ksUSD is supposed to work

At the center of the design is a strategy that coordinates three yield sources simultaneously:

• Staking yield via jitoSOL;
• Perpetual funding via Drift's SOL-PERP market;
• Lending yield via Kamino.

The engine is designed to rebalance dynamically depending on market conditions, shifting between three postures:

Positive funding. Hold jitoSOL, short SOL-PERP on Drift, and earn staking yield plus funding payments at the same time — a delta-neutral position that collects income without taking a directional bet on SOL.

Negative funding. Borrow jitoSOL and go long SOL-PERP instead, capturing the funding payments that flow to longs when the market flips.

Unattractive funding. Move capital into lending markets to earn a baseline rate until perpetual funding becomes worthwhile again.

The proposal does not disclose specific yields, APYs, TVL targets, or open-interest caps. Keystone says the product will launch with a "conservative deposit cap" and that devnet testing must be completed before any mainnet deployment.

What's in it for Drift

Keystone frames the integration as mutually benefhan a one-sided ask. According to the post, ksUSDwould deliver Drift:

• Recurring SOL-PERP open-interest growth tied to ksUSD's TVL as it expands;
• Organic hedging volume generated by every mint, i>
• A "two-sided counterparty" supplying both long and short flow as funding conditions shift;
• A "reference integration" that future structured products could be modeled on.

The open questions

The proposal closes by putting several design que — the kind of details that will determine whether the integration is viable at scale:

• Will jitoSOL remain usable as collateral for perpetual exposure on the relaunched market?
• What concentration thresholds are appropriate foposting that collateral?
• And, on Keystone's side, the requirement that devnet testing be finished before launch.

For now, this is a conversation, not a commitment. Keystone is asking Drift to review the design and treat it as a relaunch partner — no capital, no token allocation, and no DAO vote on the table yet. Whether ksUSD becomes a fixture of Drift's relaunched order book will come down to the parameters both sides settle on next.

Based on the Keystone × Drift governance proposal, published June 12, 2026.