To live happily, let's live hidden. This Monday, Bitcoin enjoys its reconquest of the 50-week moving average, and the four usual majors (Ethereum, XRP, Solana, BNB) advance wisely during the day. Nothing spectacular. The real movement of the weekend took place elsewhere, on a name that we more often associate with a discreet mainnet launch than with a double-digit surge. Aptos soared 22% in a single session on Friday, propelled by a feature and not a marketing boost, and the token is still holding its gains this morning. Leaving the usual cast of these altcoin points, let's head to the rest of the top 20, just to see what you may have missed this weekend.
Aptos and confidentiality which makes the token soar by 22%
On Friday, September 18, the Aptos Foundation activated Confidential APT on its mainnet. The feature allows users to hide their wallet balance and transfer amounts, while leaving addresses visible on-chain. The technique behind it is based on zero-knowledge proofs, cryptographic calculations that make it possible to prove that a transaction is valid without revealing the amount. The market followed without delay. In 24 hours, the token rose from around $0.60 to $0.73, a jump of 22.53% for volume that climbed to $272.67 million, according to TheStreet Crypto. This Monday morning, APT is still trading around $0.74: the market has not returned its gains.
The pump doesn't owe everything to surprise. The governance proposal that makes this functionality possible, AIP-143, had already been voted on by the community in March and its code put into production in April. What happened on Friday was the general public activation, with the support of Petra Wallet: the ground had been prepared for months, but the market only reacted once the functionality was truly usable.
The idea behind the feature addresses a very real problem. On a public blockchain, anyone can track your balance, guess your salary if you're paid in token, or track a company's cash movements. Bitcoin is no exception: its ledger remains entirely public by construction, with no native mechanism to hide a balance or amount. Aptos integrates it directly into its protocol. Confidential APT remains optional, those who prefer full transparency can continue as before, and in the event of a regulatory investigation, special audit keys are activated after an on-chain vote. A rather clever compromise between privacy and compliance, a rare commodity in this sector.
Sui, Raoul Pal’s bet for the economy of AI agents
Change of register with Sui, which has two stories in one week and whose token is moving this Monday around $0.76. On the Milk Road podcast, macro investor Raoul Pal named Sui as his highest-conviction bet for the AI agent economy, just behind Ethereum and Solana in his ranking of smart contract networks that really matter. Its speed of execution and ability to group up to 1,024 stocks into a single transaction block would, he said, make it a natural playground for autonomous agents trading with each other at machine speed.
The second story is more discreet, but just as structuring. Hashi, a protocol that allows native Bitcoin to be used as on-chain collateral on Sui, without using a synthetic token. Same logic as Aave's Custodied Collateral Lending: Bitcoin remains where it is, protected by a multisig mechanism, while it serves as collateral elsewhere. The testnet has been running since July, and the Sui foundation is now aiming for mainnet access soon. At stake is part of the approximately $1,400 billion worth of Bitcoin that is currently lying dormant outside of any DeFi strategy.
The veterans of the top 20 who don’t move an eyelash
And while Aptos and Sui are making the news, the rest of the top 20 is moving forward in scattered order, without movement that deserves an article of its own. This stability speaks volumes, in its own way. The Fear & Greed Index shows 70 this Monday (pronounced greed), the total capitalization flirts with 2,880 billion dollars, and in this context the old names are consolidating while the new catalysts do the work. Zcash and Monero already had their week of glory a few days ago, no reason to redo the article twice.
