Optimism

Programmable financial infrastructure for enterprises.
Built by Ethereum’s earliest scaling researchers.

[Optimism @Optimism]

The credit backend behind 70K+ @ether_fi Cash cardholders is moving to a dedicated @aave V4 instance on OP Mainnet.

[Optimist Prime @jinglejamOP]

https://t.co/VYqLNOORJp

[Optimism @Optimism]

Optimism is on board.

[Aero @aeroxyz]

One exchange.
Open to everyone.
Owned by anyone.

Get on board.

[Optimism @Optimism]

Read more: https://t.co/BTyrOg3XgL

[Optimism @Optimism]

Meritz Securities, part of one of Korea’s largest financial groups, is exploring tokenization on Optimism.

We’re collaborating to explore the issuance and distribution of tokenized Korean securities on the OP Stack.

Korean capital markets are coming onchain .

[Optimism @Optimism]

Just like every company has its own server now, soon every company will have its own blockchain.

@jinglejamOP explains:

[Optimism @Optimism]

Thanks @rv_inc for continually helping to improve the OP stack 🫡

[Runtime Vеrification @rv_inc]

How do you turn a one-off formal verification effort into something that keeps paying off?

For @Optimism, one hand-written Dafny model we wrote became three things:

- a proof of what "correct" means for cross-chain message validation

- ground truth for AI agents checking the Go code, function by function

- a fuzzer where every failure is a violation of a proven property

Along the way it caught a cold-start rewind bug that could silently erase backfilled blocks, which Optimism has since remediated.

The technical breakdown, from Dafny invariants to the fuzzing harness, below 👇

https://t.co/mTmN2zsLGe

[Optimism @Optimism]

@youbin_kang @Offchain @Starknet @EdFelten Thanks for a great discussion!

[Optimism @Optimism]

The future of finance is being built on Optimism.

[Optimism @Optimism]

New banner, wdyt @soneium?

[Optimism @Optimism]

A million dollars isn’t cool. You know what’s cool?

[ether.fi @ether_fi]

$1 BILLION spent!

199 countries, 131 currencies, and 12.6M+ purchases

Some things ether․fi cardholders bought along the way:
> 42,939 Starbucks orders
> 773,271 taxi rides
> 122,788 hotel stays

More fun stats here: https://t.co/5QRhMR7MQs

[Ink Daily @InkDailyTK]

Weekly Wrap on @inkonchain:

▫️ @nadoHQ fees climbed every day, from $22.1K to $122K, 4.7x in 5 days
▫️ @tydrohq has 99,900 TydroInkPoints live for Oct 14 to 21, and Kraken's USDC vault on Tydro got $30.5M of @Firelightfi cover

▫️ Payward, @krakenfx's parent, is buying Lithuania's @saldobank. That brings deposits, lending, cards and SEPA, with passports across 5 EU markets (closing 2027)
▫️ @krakenfx got Full Market Approval from Dubai's VARA, with AED pairs, staking and @xStocksFi coming in the next few weeks
▫️ Kraken Connect moves assets from the @krakenfx exchange to @krakenwalletHQ in a few taps
▫️ @WellsFargo is in talks with Payward about crypto trading liquidity

▫️ @VelodromeFi and Aerodrome are merging into one liquidity layer as @aeroxyz. Velodrome handles about 75% of Ink DEX volume

The Ink NFT wave: @0x_snatch - INKverse's 1,000 free mints sold out in under 3h

NFT projects should be on your radar:
@WiredonInk @0x_snatch @INKSIGIL @InkBubbleCats @inkpirates @WiredAgentic @inkdeadhq @InkConsoles @SpacInk1

From @nadoHQ fees to @tydrohq points, DeFi on Ink keeps growing, and more builders are coming to redefine the NFT space. Exciting times.

[Optimism @Optimism]

We help companies bring their business onchain with programmable financial infrastructure.

Learn more or book a meeting:

https://t.co/RmvgYOhaM0

[Optimism @Optimism]

A lot happened across the Optimism ecosystem this week.

Here’s a recap ↓

[Optimism @Optimism]

Nearly $1T worth of stablecoins moved on Optimism in Q3

https://t.co/ZIOn62sVbC

[Ethereum Institutional @ethereuminsti]

Over the last 90 days, $16.75T of stablecoin transfer volume settled on @ethereum and its L2s. That is 77% of all stablecoin volume across every network.

→ @ethereum mainnet $7.1T
→ @base $8.5T
→ @Optimism Mainnet $0.8T
→ Other Ethereum L2s $0.35T

$21.55T moved across all networks in the period. $16.75T of it settled on Ethereum.

Per @tokenterminal, 15 July to 12 October 2026.

Ethereum is the home of onchain finance.

[Optimism @Optimism]

Korea is building onchain, and they’re choosing Optimism.

@GIWA_by_Upbit, built by Korea’s largest exchange, has 100M testnet transactions and counting.

@toss__official, Korea’s super app used by 30M+, is exploring a won-backed stablecoin.

DB Securities, a securities and underwriting firm, is tokenizing smart-farming and livestock assets as RWAs.

KB Securities, one of Korea's leading securities firms, signed an MOU to bring tokenized funds to Korean institutional investors.

Exchange. Super app. Securities Firms. All on one stack.

[Optimism @Optimism]

Stables settle on the EVM.

[Ethereum Institutional @ethereuminsti]

Over the last 90 days, $16.75T of stablecoin transfer volume settled on @ethereum and its L2s. That is 77% of all stablecoin volume across every network.

→ @ethereum mainnet $7.1T
→ @base $8.5T
→ @Optimism Mainnet $0.8T
→ Other Ethereum L2s $0.35T

$21.55T moved across all networks in the period. $16.75T of it settled on Ethereum.

Per @tokenterminal, 15 July to 12 October 2026.

Ethereum is the home of onchain finance.