Overview of Important Developments on the Evening of October 22

1. BlackRock's Bitcoin ETF holdings surpass 390,000 BTC

2. On-chain fund management solution Karpatkey completes $7 million financing

3. BTC options contracts with a nominal value of $4.2 billion will expire this week

4. The Economist's latest forecast predicts Trump will win the US presidential election

5. CryptoQuant: Institutional holdings account for about 20% of US Bitcoin spot ETFs

6. Across proposes to permanently set the ACX token supply cap at 1 billion to prevent minting or burning operations

7. US SEC approves multiple Bitcoin ETF options for listing and trading, with a single-side position limit of 25,000 contracts