Daily Microstructure Brief — Wednesday, 17 June 2026

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ DAILY MICROSTRUCTURE BRIEF 2026-06-17 · Wednesday · covers prior 24h UTC · peak window 13:00-16:00 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ cryptocom→okx (DOGE/USD) leads executability today, past cryptocom→kraken (DOT/USDT). TOP ROUTES (by executability) 1. cryptocom→okx (DOGE/USD) Median spread 0.007% · half-life 987ms · survival @1s: 45.9% · executability 0.1% 2. coinbase→cryptocom (BTC/USD) Median spread 0.029% · half-life 1968ms · survival @1s: 98.5% · executability 0.0% 3. coinbase→okx (BTC/USD) Median spread 0.029% · half-life 1958ms · survival @500ms: 97.9% · executability 0.0% Cited data: 36365 samples across 3 routes, prior 24h UTC. SPREAD DECAY Median half-life across all routes: 1507ms. Survival @ T+1s: 73.9% of 495615 samples. Spreads > 0.40% decayed to below fee floor within 0ms median (0 samples). Half-lives tracked 7-day baselines today. BEST EXECUTION WINDOW 23:00-00:00 UTC (07:00-08:00 SGT) — 81.6% of samples survived to T+500ms above fee floor. 1.1x the 24h average. Second: 21:00-22:00 UTC — 81.1% survival. EXCHANGE BEHAVIOUR All exchanges stable — no degradation events in 24h. VS YESTERDAY Samples: 495615 (+33327) Top route: cryptocom→okx (DOGE/USD) median spread 0.007% Survival @1s: 73.9% (+160bps vs yesterday) Median spread: 0.018% (+1bps 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 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━