Underlying asset
aptUSD
Issued by Apyx. The facts below were checked on the date shown, from the sources listed.
aptUSD is issued by Apyx. What stands behind it: preferred stock of a bitcoin-treasury company. It is redeemed after a cooldown.
Facts
- Issuer
- Apyx
- What stands behind it
- preferred stock of a bitcoin-treasury company
- Strategy
- dividends on preferred shares issued by companies that hold crypto on their balance sheet
- Valued in
- USD
- Position in the capital stack
- not a tranche
- Who has to keep a promise
- a regulated issuer, a manager off chain, an exchange holding the assets
- Redemption
- redeems after a cooldown; the issuer's stated worst case is 1 day
- Who can change it
- a contract whose admin delay reads zero, so an admin change can land at once 0xe167330e2eac88666de253e9607c6d9ae0ca2824 (Ethereum)
a multisig (Safe) · 4 of 6 signatures 0xabdd8c8ee69e5f5180eb9352aeffc5ceead65e96 (Ethereum) - Audits
- Halborn, 2026-06
Quantstamp, 2026-04
Certora, 2026-03
Zellic, 2026-03
Quantstamp, 2026-02 - Bug bounty
- not found in a source that meets the standard
- Depends on
- Strategy's STRC preferred stock
Other assets from the same issuer: apxUSD, apyUSD - Chains
- Ethereum
- Checked
- 2026-10-08, partly from sources other than the issuer, listed below
- Sources
- https://docs.apyx.fi/product-overview/aptusd
https://docs.apyx.fi/product-overview/alqusd
https://docs.apyx.fi/apyx-overview/how-apyx-works
https://docs.apyx.fi/solution-overview/capitalization-framework
https://docs.apyx.fi/solution-overview/apyusd-yield-distribution
https://docs.apyx.fi/technical-overview/unlocking
https://docs.apyx.fi/resources/smart-contract-addresses
https://docs.apyx.fi/resources/audits
https://www.halborn.com/audits/apyx/smart-contract-assessment-02a20a
Pendle markets on it
No live Pendle market on this asset as of 8 Oct 2026.
The fixed rate, read on chain
This site reads each market's own contract every hour and keeps the day's last reading, one point a day, ending at the last complete day. These are not Pendle's figures. The record describes what the rate was; it does not compare markets or say what it will be.
| Chain | Maturity | Principal token | Recorded | |
|---|---|---|---|---|
| Ethereum | 2027-01-14 | PT-aptUSD-14JAN2027 | 5.63% on 2026-09-24 to 6.80% on 2026-10-07 |
Not found
What the research has not answered for this asset, said rather than left blank.
- A public bug bounty programme.
- Incidents: this encyclopedia does not yet keep a record of incidents from primary sources.