This Week in Crypto (October 19–26): The First GENIUS Rule Goes Final, Bitcoin Breaks $80,000 After an $85,000 Head Fake, and SpaceX–Tesla Talks Put 30,221 BTC on the Table

If last week was about what can go wrong inside one device, this week in crypto was about rules and plumbing. The OCC published the first final rule under the GENIUS Act, and it left room for stablecoin rewards. Bitcoin nearly touched $85,000 and then slipped under $80,000 four days later. Solana replaced its consensus engine in one slot, SpaceX and Tesla confirmed merger talks, and a bridge reserve ran down to $63. Here's the week, story by story.

The week at a glance

The OCC finalized the first GENIUS Act rule, and dropped its curb on stablecoin rewards

On October 21, the OCC became the first regulator to finalize its rule under the GENIUS Act. The rule takes effect January 18, 2027, and covers bank, nonbank, foreign and some state stablecoin issuers under its authority.

The core is simple. Issuers must hold reserves at least equal to the coins outstanding and generally redeem within two business days. Anti-money-laundering and sanctions rules are left to a separate Treasury rulemaking.

On X: @USOCC — Comptroller Jonathan Gould: "a clear, practical framework for payment stablecoin innovation."

The fight was over rewards. The proposal had presumed that some arrangements between issuers and affiliates or third parties broke the statute's yield ban. The final rule drops that presumption. Issuers still can't pay interest themselves, but platform rewards will be reviewed case by case.

On X: @EleanorTerrett — the American Bankers Association says the rule "will preserve the status quo for crypto platforms."

Our GENIUS Act explainer covers what the statute itself requires. The OCC still has to say when it will start accepting applications.

Bitcoin nearly hit $85,000, then broke $80,000 four days later

Spot bitcoin ETFs took in about $1.08 billion over October 19–21, and late on October 21 bitcoin squeezed shorts to nearly $85,000. It was back near $81,800 within a day.

The reversal came on October 22. The Nasdaq fell 2.6% on renewed doubts about AI stocks, oil rose more than 3% on Middle East strikes, and ETFs posted a $635.5 million outflow, their largest since June 25 per SoSoValue. CoinGlass counted about $431 million in liquidations that day, on both sides of the trade.

Then came the weekend. On Saturday, October 24, thin liquidity met a market crowded with longs. Bitcoin fell to about $79,150, its first trade below $80,000 since October 15, before recovering to roughly $80,900 by early Sunday.

On X: @TheBlockCo — "Crypto longs lost $404 million in four hours," with ETFs shedding $773 million over two days.

That's 93% of the four-hour total coming from longs. Our perpetual DEX guide explains how forced selling compounds a dip. One relief: CME FedWatch put October hike odds at 8% on October 22, down from 28% a week earlier.

Solana replaced its consensus engine in one slot

On October 21, Solana activated Alpenglow at slot 459,653,000, retiring TowerBFT. The target is finality in about 150 milliseconds, down from roughly 12.8 seconds.

On X: @anza_xyz — Anza, which built it: "finality reduced from 12.8 seconds to 150 milliseconds."

What shipped is Votor, the voting half. Validators now vote directly and blocks finalize by certificate. That takes one round if 80% of stake takes part, or two rounds at 60%. Rotor, which rebuilds how blocks are propagated, has no date yet.

Temper the hype a little: 150 milliseconds is a design target. Cointelegraph's snapshot right after activation showed 6.6-second finality on the Alpenglow dashboard. Expect transaction-count charts to dip too, since votes no longer travel as on-chain transactions.

SpaceX and Tesla confirmed merger talks that would pool 30,221 BTC

On SpaceX's October 20 earnings call, Elon Musk said both companies have formed special committees of independent directors to study a combination. He called it a good idea and stressed that no terms have been agreed.

On X: @CoinDesk — a merger would create "a single entity holding more than 30,000 $BTC."

Two details keep this in proportion. A merger moves existing coins onto one balance sheet; it buys none, and neither company has disclosed plans to trade bitcoin. And a deal still needs shareholder approval, with JPMorgan flagging Chinese regulatory hurdles too. SpaceX shares rose about 9% premarket on October 21.

The kicker: Initia's USDC bridge reserve hit $63

And because no week of new rulebooks ends without a reminder that code still bites: on October 23, Initia halted its chain after an attacker minted balances out of thin air.

Initia blamed a MoveVM script-caching bug. It let the attacker create unbacked WETH, iUSD and USDC balances, which the bridges honored as claims on real assets held elsewhere. The USDC reserve on Noble hit $63 at 15:37 UTC, and Initia halted its L1 and rollups four minutes later.

On X: @initia — the L1 and rollups "have been halted due to a security incident."

Bitquery estimates about $3 million in real assets left against roughly $7 million in fake balances. Initia hasn't confirmed a loss figure, and Circle's native USDC is unaffected. It's one bridge reserve. Small money, familiar lesson: our piece on why bridges keep getting hacked covers the pattern.

Also this week

• Switzerland approved its first spot bitcoin ETF for retail investors on October 20. BIT Asset Management's BBIT holds bitcoin directly under Swiss fund law and is expected to list on SIX in November, per the issuer.
• Ethereum postponed Glamsterdam's October 26 Hoodi testnet date. ChainSecurity flagged 13 live contracts that could misbehave under EIP-8037's new gas accounting; no new date is set.
• Strategy added 267 BTC, reaching 848,517 BTC as of October 18. It also raised its preferred-stock buyback authorization from $2 billion to $3 billion.
• Standard Chartered agreed on October 21 to take full ownership of Zodia Custody. Completion awaits regulatory approval; terms weren't disclosed.

What to watch next

The Fed meets October 27–28 with hike odds near 8%, and U.S. midterms follow on November 3. MSCI's November 11 list and the EBA's November 12 takeover of USDC supervision carry over from last week. Also watch for the OCC's application window and Initia's restart and reimbursement terms. Wherever stablecoin rules land, Coin98 Super Wallet keeps your keys on your own device across 100+ blockchains.

Last updated: October 2026