Banking
Derivatives
Bitcoin option buyers face a Fed-week premium that can fade after the decision
Laevitas’s Oct. 26 snapshot showed a 9.2-point implied-versus-realized premium, putting buyers’ exposure after policy decisions in focus.
Stablecoins
Robinhood links 29 million app users to Ripple’s XRP Ledger
RLUSD already trades on Bitstamp, while the new agreement adds expected Robinhood app access and planned XRP Ledger settlement.
Technology
Bitcoin apps risk massive fee drain, and 2 library bugs are blamed
Two Bitcoin library flaws could hide massive miner fees and let valid transactions bypass safety checks.
Banking
BNY offers XRP custody, but only 1 rollout type exists
Eligible clients can now hold XRP through BNY, while transfers of existing tokens would not establish additional purchases.
Hacks
X100 governance flaws trigger $6M loss due to a flash loan
X100’s attacker repaid a flash loan from theft proceeds while its stake stayed locked, and Arkadiko’s ballot accepted late token purchases.
Trading
Polymarket reforms Bitcoin contracts and Binance trading spikes immediately drop
A newer study finds the earlier Binance trading pattern subsided after averaging, but historical wallet gains cannot quantify current losses.
AI
OpenAI claims a cryptography breakthrough. Does that threaten Bitcoin?
The claim concerns the Exponential Time Hypothesis. Independent scrutiny is open, and a practical Bitcoin attack would require several further steps.
Lightning
Lightning tightens invoice rules after reported attack made Bitcoin withdrawals look unpaid
BOLT11 now requires one payment hash and one payment secret, while operators must check how their software records withdrawals.
Censorship
Iran-linked Bitcoin activity fell about 80%, then rebounded during the blackout
Chainalysis’s Oct. 26 report tracks a collapse and recovery in activity it classifies as everyday use, while household access remains unmeasured.
Derivatives
Kraken opens Bitcoin and Ethereum options to eligible European traders
The EEA rollout adds USD-settled contracts to existing derivatives accounts, with shared futures collateral and portfolio margin on by default.
Macro
Japan’s services inflation split complicates the BOJ outlook before Friday’s decision
Business-service inflation reached 3.7%, while the transport-excluded rate held steady and labor-sensitive price growth eased before Friday’s BOJ decision.
Analysis
Bitcoin simulations show why a return to $126,000 would not last
In a separate daily-close simulation, 50.4% of paths regain Bitcoin's record within a year, while 34.8% finish above it.
