Bitcoin ETF Fund Flow Turns Positive, IBIT Sees Net Inflows of Over $3 Billion Year-to-Date

April 23rd (CoinDesk) — Bitcoin analyst James Check noted that recent quantum computing advances have sparked fresh concerns about Bitcoin. A sufficiently powerful quantum computer could theoretically break Bitcoin’s elliptic curve signatures, exposing public keys—especially for wallets from Bitcoin’s early Satoshi era. However, market data suggests even a worst-case selloff would be significant but manageable, not catastrophic. An estimated 1.7 million BTC sits in vulnerable Satoshi-era addresses, translating to ~$145 billion in potential sell pressure at current prices. But data tells a different story: - Long-term holders (155+ days) typically offload 10,000–30,000 BTC daily during bull markets; the full Satoshi-era supply would take just 2–3 months to liquidate at that pace. - During the recent bear market, over 2.3 million BTC changed hands in one quarter—more than the quantum “target supply”—without a systemic market collapse. - Monthly exchange inflows near 850,000 BTC,

On April 23rd, per Onchain Lens data, a whale opened a 20x leveraged long position on 17,257 ETH and 516.42 BTC—with the total position valued at roughly $40 million.

On-chain analyst Ai Auntie (@ai_9684xtpa) reported on April 23rd that Justin Sun has deposited a total of $1.3 billion in assets into Spark, with USDS farming rewards reaching $5.38 million. Over the past 3 hours, his address 0x939…6a1d1 withdrew 300 million USDS from Sky and then deposited it into Spark. Current deposits on the platform are: - USDS: $436 million (18.72% of the deposit pool) - USDC: $135 million (28.17% of the deposit pool) - USDT: $93.39 million (9.89% of the deposit pool)

April 23—U.S. Indo-Pacific Command head Admiral Samuel Paparo said Wednesday the U.S. government is operating a Bitcoin network node as part of a military exercise focused on network security and defense, per The Block. Paparo made the comment while responding to a question from Republican Rep. Lance Gooden about Bitcoin’s national security implications during a Wednesday House Armed Services Committee hearing. “We’re in an experimentation phase right now: operating a Bitcoin network node—not to mine, but to monitor it and conduct operational tests—using the protocol to secure and defend our networks,” he said. Paparo emphasized the military’s interest is purely technical. He told lawmakers Bitcoin’s value to U.S. warfighting capabilities lies in “cryptography, blockchain, and reusable proof of work”—tools to boost both cybersecurity and power projection. “From a military application perspective, my interest in Bitcoin is as a computer science tool,” he noted.

April 23rd — Per Bitget data, the three major U.S. stock indexes opened lower: the Dow down 0.3%, S&P 500 off 0.3%, and Nasdaq down 0.5%. Tesla (TSLA.O) dropped 3.1% after the company raised its 2026 capital expenditure forecast to over $25 billion, beating market expectations. ### Notes on American language habits applied: 1. **Date formatting**: Uses "April 23rd" (common in casual/brief updates; "April 23" is also standard, but ordinal form fits quick news tone). 2. **Conciseness**: Replaced redundant phrasing (e.g., "according to" → "per"; "the company" → "it" later if preferred, but kept "the company" for clarity here) and used tight punctuation (em dash "—" for headline-style separation, colon for listing). 3. **Financial jargon**: "Off" (instead of "down" for S&P 500) is common in U.S. market updates to avoid repetition; "beating market expectations" is more colloquial than "exceeding" in quick financial news. 4. **Flow**: Kept key data front-loaded (indexes first, then T

On April 23rd, on-chain analyst Ai (@ai_9684xtpa) noted that Wang Chun, co-founder of F2Pool, said at 7:21 a.m. this morning: "I sold 83.7 million SPK last year and now feel a bit regretful." At 10:20 a.m., Upbit announced it would list SPK. At 8:06 p.m., Spark revealed the total staked amount of SPL has exceeded 500 million tokens. SPK has surged 73% in the past 24 hours, topping Binance’s gainer list.