Strategy swung from an $8B loss to a $21B gain in one quarter
Strategy's October 8-K shows a $20.91B Q3 2026 gain on digital assets, 848,000 BTC holdings, and a $70.82B carrying
Arbitrum just bought a stake in its own stablecoin float
Paxos' USDG stablecoin goes live on Arbitrum as a DAO proposal seeks 100M ARB for DRIP to seed USDG liquidity and
Bitcoin flat, the 3x ETF is down 9%: the decay math explained
SEC approved 3x leveraged Bitcoin and Ether ETFs in October 2026, but daily-reset math means losses even when Bitcoin ends the week flat.
Strip out stablecoins and Bitcoin's real share jumps to 64%
Bitcoin dominance sits near 59%, but stripping out $300B+ in stablecoins puts BTC's real market share closer to 64%.
SEC calls it self-custody. You still can't hold your own keys.
The SEC's October 2026 proposal would let advisers self-custody client crypto under strict, conditional rules.
One ETF soaked up 81% of Bitcoin's $6.3B Q3 inflows
US Bitcoin ETFs added $6.3B in Q3 2026 as BTC rose 43%; BlackRock's IBIT captured about 81% of inflows.
MetaMask's hack netted $967. Lido exited validators anyway.
MetaMask disclosed a security breach Sept 30, 2026 and began exiting validators on Lido over $967 in diverted rewards.
Altcoin exchange deposits just jumped 160% in two weeks
CryptoQuant: altcoin exchange deposits rose ~160% in two weeks, the highest level since October 2025.
Strategy now owns more than 4% of Bitcoin's entire supply
Strategy's Sept 21-27 8-K: 1,665 BTC for $142.7M, holdings hit 847,666 BTC — over 4% of BTC supply.
84% of Iran's sanctioned wallets ran almost only on USDT
Senate PSI report: 84% of 846 sanctioned Iran-linked wallets transacted almost exclusively in Tether's USDT stablecoin.
Bitcoin holders just cashed out 25,700 BTC in a single day
CryptoQuant: Bitcoin short-term holder profit hit a 21-month high after record profit-taking, raising correction risk.
Altcoin Season Index jumped to 64. Still not altseason.
The Altcoin Season Index hit 64 in late September 2026, up from 48 but still below the 75 altseason threshold.