Crypto Briefing — April 25, 2026

🔥 Top Story: Global Regulators Coordinate Crackdown on Prediction Markets and Crypto ATMs

Brazil's central bank blocked roughly 28 prediction market platforms on April 24, including Polymarket and Kalshi, which are now confirmed inaccessible in the country. The resolution bans derivatives tied to sports, politics, and entertainment, citing investor protection. This follows Tennessee becoming the second U.S. state to outlaw crypto ATMs after Governor Bill Lee signed House Bill 2505 on April 13; operators face up to one year in prison and $2,500 fines starting July 1. Wisconsin also sued Kalshi, Polymarket, Robinhood, Coinbase, and Crypto.com this week over sports event contracts. Regulators in major jurisdictions are done observing—they are actively dismantling two of crypto's most visible retail touchpoints.

📊 Market Snapshot

BTC: $77,356 (-1.1%) | ETH: $2,313 (-0.8%) — Drifting lower on thin volume. Total market cap: $2.67T, 24h volume down 19%.
Fear & Greed Index: 39 (Fear) — Retail remains cautious despite institutional buying.
Bitcoin spot ETF inflows hit $245M by mid-April, with BlackRock alone pulling in over $900M. This bid is the main support under $76K; Polymarket odds for an April dip to $60K collapsed to 1.3%.
BTC dominance: 58.1% — Capital continues concentrating in Bitcoin; alts are flat.

💰 Crypto Highlights

BIS calls exchanges "shadow banks." A new 38-page Bank for International Settlements report warns that exchange yield products and stablecoin earn programs are effectively unsecured loans to lightly regulated intermediaries with no deposit insurance. The report cites the October 2025 flash crash that triggered $19 billion in liquidations and the Celsius/FTX collapses. If this framing sticks with national regulators, expect renewed pressure on exchange stablecoin operations globally.
100+ firms demand Senate move on CLARITY Act. Coinbase, Ripple, Circle, Kraken, a16z, and Paradigm sent a formal letter on April 23 pressing the Senate Banking Committee for a markup vote. The House-passed bill would draw a statutory line between digital commodities and investment contracts. The coalition warned that "regulation by enforcement" has fragmented the U.S. market and ceded ground to the EU. The main sticking point is whether stablecoin yields should be permitted.
Quantum researcher cracks 15-bit ECDSA key. An independent researcher used a cloud-accessible quantum computer to break a 15-bit elliptic curve key, winning a 1 BTC bounty from Project Eleven. The attack is 512x larger than the previous public record. While 15-bit is trivial next to Bitcoin's 256-bit keys, the acceleration curve puts the $2.5 trillion secured by ECDSA on notice.

🎯 What to Watch

Senate Banking Committee markup of the CLARITY Act. With over 100 firms demanding action and JPMorgan saying the bill is "nearing the finish line," the next few weeks determine whether the U.S. gets statutory clarity this cycle.
State-level ATM bans spreading. Thirty states introduced crypto kiosk bills this year. If more follow Tennessee and Indiana's outright ban, the cash-to-crypto retail onramp narrows sharply.
ETF inflow sustainability. BlackRock has dominated eight consecutive days of positive flows. Watch whether this institutional bid holds into May or if macro headwinds finally crack the floor.

Briefing compiled April 25, 2026. Data: CoinGecko, DeFiLlama, Alternative.me, SEC.gov, The Block, Bloomberg, BIS.