[Bug]: Fetched staked amount is lower than actual transaction payload

[devlenardo]

🐛 Bug

Hi, I hope you're doing well. I staked 11 APT. However, when I fetched my staked amount from the network the amount was little bit lower than it has to be. So I checked the the amount from the transaction payload, but it was still 11 APT. To test the problem, I wrote a script to fetch the staked amount and again staked 11 APT and staked amount was 10.99987349. I've fetched the data every half hour. What is the problem here? Is there a hidden gas fee when I stake my APT's? You can find the fetched amounts below and transactions.

Transactions

https://explorer.aptoslabs.com/txn/4470599275/userTxnOverview?network=mainnet : add stake
https://explorer.aptoslabs.com/txn/4473138765/userTxnOverview?network=mainnet : unlock
https://explorer.aptoslabs.com/txn/4478336176/userTxnOverview?network=mainnet : withdraw

Staked amount in each interval

Poll | Timestamp (UTC) | Staked Amount | Pending Amount | Inactive Amount

1 | 2026-03-04 11:45:44Z | 10.99987349 | 0 | 0
2 | 2026-03-04 12:15:44Z | 10.99999877 | 0 | 0
3 | 2026-03-04 12:45:44Z | 10.99999877 | 0 | 0
4 | 2026-03-04 13:15:44Z | 10.99999877 | 0 | 0
5 | 2026-03-04 13:45:44Z | 10.99999877 | 0 | 0
6 | 2026-03-04 14:15:44Z | 11.00012454 | 0 | 0
7 | 2026-03-04 14:45:44Z | 11.00012454 | 0 | 0
8 | 2026-03-04 15:15:44Z | 11.00012454 | 0 | 0
9 | 2026-03-04 15:45:44Z | 11.00012454 | 0 | 0
10 | 2026-03-04 16:15:44Z | 11.00024973 | 0 | 0
11 | 2026-03-04 16:45:44Z | 11.00024973 | 0 | 0
12 | 2026-03-04 17:15:44Z | 11.00024973 | 0 | 0
13 | 2026-03-04 17:45:44Z | 11.00024973 | 0 | 0
14 | 2026-03-04 18:15:44Z | 11.00037461 | 0 | 0
15 | 2026-03-04 18:45:44Z | 0 | 11.00037460 | 0
16 | 2026-03-05 07:07:55Z | 0 | 0 | 11.00049991
17 | 2026-03-05 07:37:55Z | 0 | 0 | 11.00049991
18 | 2026-03-05 08:09:31Z | 0 | 0 | 11.00049991
19 | 2026-03-05 08:43:16Z | 0 | 0 | 11.00049991
20 | 2026-03-05 09:13:16Z | 0 | 0 | 11.00049991
21 | 2026-03-05 10:14:59Z | 0 | 0 | 0

Expected Behavior

I expect to see the exact amount that I staked to the network.

System information

@aptos-labs/ts-sdk: 5.2.0
Network: Mainnet

Additional context

Additionally, independent from the first loss of OCTA's, when I unstaked the amount it also reduces the staked amount by approximately 1-2 OCTA. It happens after the first operation(staking), when I try to unstake and restake my amount, the staked amount usually drops by 1 OCTA.

Thank you in advance

[mahir-akbas]

@JoshLind @gregnazario @davidiw @rustielin @msmouse