Compounding means that interest or rewards already earned are added back to the original deposit, so future returns are calculated on a growing balance rather than a fixed one. APY captures this effect, which is why it's typically shown as a higher number than the equivalent APR for the same underlying rate, especially when rewards compound frequently, whether daily or even continuously, depending on the platform. In crypto, APY commonly appears on staking products, yield farming positions, and interest-bearing savings accounts, giving users a sense of what a deposit could grow to over a year if conditions stayed the same.
A quoted APY is rarely fixed for a full year. It typically reflects current conditions and can rise or fall as network activity, token prices, or reward programmes change. Extremely high APY figures, particularly on newer or unaudited platforms, deserve extra scrutiny: they can be funded by inflationary token emissions rather than genuine trading or lending activity, and may not be sustainable once early incentives run out. As with any yield-generating product, it's worth understanding the underlying source of the return, the platform's track record, and the risks involved, including smart contract risk and the possibility of losing principal, before depositing funds.
Key takeaways
- APY reflects total yearly return including compounding, so it is usually higher than the equivalent APR.
- Crypto platforms advertise APY for staking, yield farming, and savings-style products.
- An unusually high APY can signal token inflation or an unsustainable incentive programme rather than organic returns.
APY — frequently asked questions
Why does compounding matter?
Compounding means earned rewards are added back to the principal so they also start earning returns. Over a year, even a modest rate compounded frequently can produce a noticeably higher total yield than the same simple rate.
Can APY change during the year?
Yes. Most crypto APYs are variable and move with network conditions, pool demand, or how a platform funds its rewards, so the figure you see today isn't guaranteed to hold for a full year ahead.
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