Mantle Network ($MNT)
I start this list of undervalued altcoins off with Mantle Network ($MNT). Since early August, Mantle started an impressive rally. From 68 cents to its current price of $2.40. That’s a 3.5x in 2 months. Its market cap also grew by 2x over the last 2 months. There aren’t many projects that can show such a rally.
Another new week, another new all-time high.$MNT just crossed $7.5 billion in market cap.
2x growth in 1 month. pic.twitter.com/LTDNIj8GSc
— Mantle (@Mantle_Official) October 6, 2025
Mantle is an Ethereum Layer 2. It’s designed for high performance, low fees, and high scalability. It wants to connect TradFi with DeFi. So, we have a financial chain at hand. Mantle is part of the Mantle Group. Its native $MNT token powers the ecosystem. For instance, you can use it for governance or staking.
Now, some of its most recent news is the integration of UR. This unifies your crypto and fiat account. It offers 0 off‑ramp fees and access to various fiat currencies. Currently, it’s available in 45 countries. However, not in the US.
UR is here.
One unified account, seamlessly bridging fiat and crypto, onchain.
Every deposit and tokenized transaction runs on Mantle Network: fast, verifiable, reliable. https://t.co/JK9mQiAtng
— Mantle (@Mantle_Official) October 7, 2025
It has plenty of cool features. For instance, you can link your UR Mastercard debit card to Apple Pay, Google Pay and more.
It also offers Bank‑Level Integration. For instance, multi‑currency IBANs support, or comprehensive SEPA, SWIFT, and SIC transfers. You can convert digital assets to fiat instantly. This is with near‑zero fees from any wallet or supported chain. You can also earn up to 5% APY by simply holding $USDe on UR.
UR also enables users holding USDe in their UR wallets to earn up to 5% APY through a strategic partnership with @ethena_labs — enabling both a practical money management solution and savings tool.
Save 𝗮𝗻𝗱 soon spend USDe directly from UR.
— UR (@UR_global) October 7, 2025
So, this will surely bring even more eyes to Mantle. There’s also an $MNT perp trading now on Backpack. The momentum keeps going.
The current $MNT price is $2.40 with a $7.8 billion market cap. A $3.60 price is still in the cards. $MNT’s ATH is $2.47, so it’s all price discovery from here.
Walrus ($WAL)
Next on today’s list of altcoins is Walrus ($WAL). This is one of my favorite projects during this cycle. Walrus is a decentralized storage protocol. It’s developed by Mysten Labs, that’s the same team that’s behind Sui.
It’s designed to securely store large, unstructured data. For example, videos, AI datasets, and more. Walrus introduces “programmable storage”. This makes storage itself usable in smart contracts.
An interesting bit of Walrus trivia is that it started out as an internal project. Later, Mysten Labs decided to launch a full decentralized storage protocol.
Grayscale Trust
So, one of the bigger news items for Walrus is the launch of a single asset Trust by Grayscale. This gives accredited investors exposure to $WAL. Institutional interest often means more capital inflow and credibility. The markets may not yet price that fully in. So, there’s an advantage. By the way, Grayscale offers various Sui products. For example, there’s also a Sui and a Deepbook Trust.
🚨 @Grayscale launches the Walrus Trust (WAL) and DeepBook Trust (DEEP) — bringing institutional capital to Sui’s data + liquidity layers.
Walrus = Sui’s decentralized data layer powering AI, gaming, and social apps.
Now investable.
Now institutional. https://t.co/TGBjlIHpjm— Walrus 🦭/acc (@WalrusProtocol) August 12, 2025
Staking $WAL
Around 20% of the $WAL supply is currently staked. That’s give or take 1 billion $WAL. Now, this reduces sell pressure. But what is even more appealing is the APR you can get on staking or assigning $WAL to liquidity pools.
- •Bluefin has $WAL pools that offer a 24‑hour APR as high as 255%.
- •On Haedal you can get 27.68%.
- •Scallop offers a 33% supply APR.
- •Suilend currently offers 31.9%.
Plus, many staking options offer you LSTs (Liquid staking tokens), so you can also earn on your LSTs. Staking $WAL can also qualify you for a third $WAL airdrop.
Since I’m talking about $WAL, here’s more good news. $WAL is by default deflationary. However, now it’s actively burning $WAL. Every time usage fees are paid in $WAL, a percentage of this fee will be burned. This is good for the $WAL price.
WAL is burning 🔥 (and it’s a good thing).
Soon, every time someone pays to use Walrus, some WAL will be burned, causing deflationary pressure.
Plus, Walrus’ storage pricing will be available in USD, creating greater price stability for the long term.
It’s designed to work for… pic.twitter.com/VahHJsw42n
— Walrus 🦭/acc (@WalrusProtocol) October 1, 2025
Live Metrics on Dune
Walrus is now live on Dune. This allows for real‑time exploration of metrics, liquidity, and usage. For example, it shows blobs per day. Last week, blobs per day hit an all‑time high of 3.2 million. Blobs are large binary files such as videos, images, audio files, and large text files.
The current $WAL price is 40 cents with a $589 million market cap. So, plenty of growth potential.
Linea ($LINEA)
Finally, today, we have Linea ($LINEA) on our list of altcoins. It’s an Ethereum Layer 2 from the ConsenSys team. That means, like Infura and MetaMask, it’s the Ethereum Foundation’s pick for L2s. Linea has been active even before its September TGE of its $LINEA token.
Linea is the blockchain that MetaMask chose when it came time to issue the popular MetaMask Crypto Debit Card. And that should be no big surprise since Linea and MetaMask are both ConsenSys products.
Earn boosted yield. Spend crypto IRL. Claim unparalleled rewards. Built on Linea, powered by @Aave, @MetaMask Card, and @brevis_zk.
Supply liquidity on Aave → Get a 2.4% boost on your USDC deposits.
Borrow USDC on Aave → Receive a 2.4% discount on the base rate.
This is… pic.twitter.com/A3cC5Sgxeu
— Linea.eth (@LineaBuild) August 21, 2025
It is also the place MetaMask chose to launch its own stablecoin, $mUSD. We covered this when announced a couple of weeks ago. These two things alone mean lots of volume will come to the Linea chain.
Looking at why the $LINEA token may be undervalued; we have a few favorable things for you here.
No Exchange Listings Yet
First, there are no major exchange listings yet. Typically, easier access through exchanges drives price up. Coinbase has already put it on its listing roadmap. A Coinbase listing would be huge for Linea, allowing American investors to buy it easily.
JUST IN: Coinbase to list $LINEA (@LineaBuild) pic.twitter.com/NFrtGvaSOk
— Satoshi Club (@esatoshiclub) October 6, 2025
$LINEA Burn Program
Second, Linea has an aggressive burn program. $LINEA is NOT the gas token for this chain – ETH is. Eighty percent of the ETH profits from fees will be used to buy back and burn $LINEA, which is very bullish.
Tokenomics
Third, the tokenomics allocate 85% of the total supply for ecosystem growth, primarily through the Ecosystem Fund.
Finally, Etherex is currently the top place to buy $LINEA. Its price is about 2.6 cents, giving it a $405 million market cap. Considering Linea is backed by the Ethereum Foundation, this valuation is cheap for a potential top‑2 or top‑3 Ethereum Layer 2.
So, which one of these altcoins is your favorite? Let me know in the comments. Do join our discussions on X and Discord.
Disclaimer
The information discussed by Altcoin Buzz is not financial advice. This is for educational, entertainment and informational purposes only. Any information or strategies are thoughts and opinions relevant to accepted levels of risk tolerance of the writer/reviewers, and their risk tolerance may be different from yours.
We are not responsible for any losses that you may incur as a result of any investments directly or indirectly related to the information provided. Bitcoin and other cryptocurrencies are high‑risk investments, so please do your due diligence.