Daily Microstructure Brief — Tuesday, 9 June 2026

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ DAILY MICROSTRUCTURE BRIEF 2026-06-09 · Tuesday · covers prior 24h UTC · peak window 13:00-16:00 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ No route persisted longer this week than cryptocom→okx (ADA/USD). TOP ROUTES (by executability) 1. cryptocom→okx (ADA/USD) Median spread 0.015% · half-life 496ms · survival @1s: 20.2% · executability 1.9% 2. cryptocom→okx (ADA/USDT) Median spread 0.013% · half-life 522ms · survival @1s: 20.2% · executability 0.8% 3. kraken→okx (DOGE/USDT) Median spread 0.03% · half-life 1470ms · survival @500ms: 72.2% · executability 0.2% Cited data: 1657 samples across 3 routes, prior 24h UTC. SPREAD DECAY Median half-life across all routes: 1408ms. Survival @ T+1s: 69.2% of 604519 samples. Spreads > 0.40% decayed to below fee floor within 2000ms median (7 samples). Half-lives tracked 7-day baselines today. BEST EXECUTION WINDOW 10:00-11:00 UTC (18:00-19:00 SGT) — 77.0% of samples survived to T+500ms above fee floor. 1.1x the 24h average. Second: 09:00-10:00 UTC — 75.9% survival. EXCHANGE BEHAVIOUR No exchange-level incidents recorded in 24h. VS YESTERDAY Samples: 604519 (-18813) Top route: cryptocom→okx (ADA/USD) median spread 0.015% Survival @1s: 69.2% (-170bps vs yesterday) Median spread: 0.022% (+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 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━