Daily Microstructure Brief — Monday, 15 June 2026

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ DAILY MICROSTRUCTURE BRIEF 2026-06-15 · Monday · covers prior 24h UTC · peak window 13:00-16:00 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ kraken→okx (ETH/USDT) overtook kraken→okx (DOT/USDT) on executability today. TOP ROUTES (by executability) 1. kraken→okx (ETH/USDT) Median spread 0.013% · half-life 1646ms · survival @1s: 80.5% · executability 0.1% 2. kraken→cryptocom (ETH/USDT) Median spread 0.015% · half-life 1562ms · survival @1s: 75.9% · executability 0.1% 3. coinbase→okx (BTC/USD) Median spread 0.021% · half-life 1942ms · survival @500ms: 97.1% · executability 0.0% Cited data: 23743 samples across 3 routes, prior 24h UTC. SPREAD DECAY Median half-life across all routes: 1642ms. Survival @ T+1s: 81.1% of 485362 samples. Spreads > 0.40% decayed to below fee floor within 2000ms median (1 samples). Half-lives tracked 7-day baselines today. BEST EXECUTION WINDOW 03:00-04:00 UTC (11:00-12:00 SGT) — 86.9% of samples survived to T+500ms above fee floor. 1.1x the 24h average. Second: 19:00-20:00 UTC — 86.7% survival. EXCHANGE BEHAVIOUR All exchanges stable — no degradation events in 24h. VS YESTERDAY Samples: 485362 (-36406) Top route: kraken→okx (ETH/USDT) median spread 0.013% Survival @1s: 81.1% (-10bps vs yesterday) Median spread: 0.016% (+0bps vs yesterday) CONSTRAINTS ON THIS DATA Spread persistence varies materially by route and hour of day. High-spread events (>0.40%) decay faster than the median. Results describe the prior 24h only — not predictive. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Bot activity — not financial advice. Every signal blockchain-verified: proofsystems.ai/signals Full archive: proofsystems.ai/brief ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━