Product Guide
Predium Bonds is an on-chain product where your principal earns interest and that interest funds a draw. This page explains how it works, how to subscribe and redeem, how the prize pool and fees are calculated, and the risks you need to know.
01Overview
About Predium Bonds
Predium Bonds is an on-chain savings-style product. The principal you subscribe is allocated 100% to a lending yield layer to earn interest; the principal itself does not participate in any prediction market.
Each week the interest earned is pooled together to form that week's prize pool, drawn every Sunday and distributed to ticket holders using verifiable randomness. You can redeem your principal at par at any time.
Principal earns interest
Subscribed principal is allocated 100% to a lending yield layer to earn interest and never participates in any prediction market.
Interest becomes the prize pool
Each week the interest earned (around 95% after management fees) is pooled to form that week's prize pool.
Redeem at par anytime
Principal can be redeemed at par (1 unit = 1 USDC) at any time, settling to your account in about 48–72 hours.
02How it works
From subscribe to draw
Principal stands guard earning interest while the interest becomes the prize pool — four steps complete one full cycle:
1 · Subscribe — Deposit USDC to subscribe; the principal enters the yield layer in full.
2 · Yield — Principal earns interest in the lending protocol, accruing over time.
3 · Draw — Each week the interest forms the prize pool; on Sunday winning tickets are drawn using verifiable randomness.
4 · Redeem — Principal can be redeemed at par at any time, settling in about 48–72 hours.
03Subscribe & redeem
Entry & exit rules
Minimum subscription
500 USDC
Per-user cap
50,000 USDC
Ticket rules
Every 100 USDC of principal maps to 1 ticket; the more tickets, the more chances in the draw. Tickets take effect from the next epoch — in the week you deposit, the principal first earns interest and does not join that week's draw.
Redemption rules
Redeem anytime, always at par (1 unit = 1 USDC), unaffected by pauses, draws, or any operational state; settles to your account in about 48–72 hours.
04Draw rules
A draw every Sunday
Draw at Sun 20:00 UTC · on-chain verifiable random (VRF). The number of prizes grows with the size of the prize pool, while each ticket's win probability is fixed; the more tickets, the higher your chance of winning.
Verifiable randomness
Draw results are determined by on-chain verifiable randomness (VRF); the random seed is written publicly to the contract and cannot be swapped afterward, so no one can manipulate the outcome.
Pool size sets the prizes
The larger a week's prize pool, the more prizes can be distributed; in weeks where the pool is zero, no prizes are paid out.
Winner list on-chain
Each period's winner list is written to the contract as a digest and is publicly auditable; claims and records are transparent and cannot be altered after the fact.
Every week's market selection and settlement records are fully public and can be inspected line by line:Go to the scoreboard
05Yield & fees
How the pool is funded and how fees are charged
Principal is deposited into the yield layer to earn interest (target base APR around 4.75%); after management fees, the interest (around 95% of it) is fully allocated to that week's prize pool.
Prize APR is a net-of-fees figure derived from the past 365 days of historical performance, used to describe the size of the prize pool. It is neither a fixed rate nor a guaranteed return — the prize pool fluctuates with each week's market settlement and may be zero.
Hit rate is a "draw-experience metric" that measures how often a week's draw feels rewarding. It is not a measure of investment return or forecasting skill.
Management fee
5%
Charged only from the interest harvested each week; principal is never touched.
Performance fee
20%
Charged only on net profit, with no charge in losing weeks; principal and the interest itself are not part of the fee base.
Pool-by-pool data
Composite Pool
4.4%
Prize APR · net of fees · derived from the past 365 days
Hit rate [draw-experience metric]: 97.0%
Sports Pool
4.4%
Prize APR · net of fees · derived from the past 365 days
Hit rate [draw-experience metric]: 93.8%
Crypto Pool
4.4%
Prize APR · net of fees · derived from the past 365 days
Hit rate [draw-experience metric]: 97.8%
Macro Pool
4.5%
Prize APR · net of fees · derived from the past 365 days
Hit rate [draw-experience metric]: 98.7%
Data as of: 2026-07-10 (net of fees)
06Risk & compliance
Please read before participating
Not a bank deposit, not a guaranteed return
This product is not a bank deposit, not insurance, and does not offer any fixed or guaranteed return. "Principal protection" refers to the flow of funds and structural design, not a guarantee by any institution.
The prize pool return may be zero
The prize pool derives from how interest settles in the market and fluctuates week to week. In the worst case, a given week's prize pool may be zero — you still retain your principal and an unaffected right to redeem at par.
Smart contract risk
The product is executed by on-chain smart contracts; the code may contain vulnerabilities or be subject to attack, and such risks may reach principal.
Yield-layer protocol risk
Principal is deposited into a lending protocol (such as Aave v3) to earn interest and is exposed to that protocol's smart contract and market risks; these risks may reach principal.
Stablecoin de-peg risk
This product is denominated in USDC and is exposed to the risk of the stablecoin losing its 1-dollar peg (de-pegging).
This product currently runs on testnet. All figures on this page are net of fees and dated to their source; hit rate is always a "draw-experience metric," not a measure of investment return. Before participating, please make sure you understand the risks above.
07FAQ
You might be wondering
Is my principal safe?
Your principal is allocated 100% to the lending yield layer to earn interest, is never put into a prediction market, and can be redeemed at par at any time. But that does not mean zero risk — principal still bears smart contract, yield-layer protocol, and stablecoin de-peg risks (see "Risk & compliance").
Why might some weeks have no prize?
The prize pool comes from how interest settles in the market and fluctuates week to week. When a week performs poorly the pool shrinks, and in the worst case it may be zero. Whatever the pool's size, your principal and right to redeem are unaffected.
Is the draw fair?
Draw at Sun 20:00 UTC · on-chain verifiable random (VRF). The draw uses on-chain verifiable randomness (VRF); the random seed is written publicly to the contract and cannot be swapped afterward, ensuring the result cannot be manipulated.
When can I get my principal back?
You can request redemption at any time, always calculated at par (1 unit = 1 USDC), settling to your account in about 48–72 hours, unaffected by pauses, draws, or any operational state.
How much do I need to participate?
The minimum subscription is 500 USDC, with a per-user cap of 50,000 USDC. Every 100 USDC of principal maps to 1 ticket; the more tickets, the more chances in the draw.