ΔTrace Labs
Educational research note
Korea fade versus London open
In plain English · the 60-second version
The question. When the Korean stock market closes and London opens, does crypto volume spike?
The result. No spike. Volume fades into the Korean close (06:30 UTC) and then builds toward London's open. For BTC the closing 15 minutes run at 87 (winter) vs the 04:00–10:00 average of 100; the first London bar runs at 122.
Caveats. Time-zone clocks matter: London opens at 08:00 UTC in winter but 07:00 in summer, so the gap after Korea's close is 90 minutes in winter and 30 in summer. It is volume on Binance, not Korean or London stock activity.
Scope. A narrow, descriptive cut of 15-minute volume. A fade-then-rebuild pattern is not a trade.
Bottom line: There's no volume jump when Korea closes. Activity dips, then picks up as London comes online.
Jargon decoder
- Volume
- How much of an asset was traded. High volume = busy, easy to trade; low volume = quiet and thinner.
- UTC
- One global clock, so times mean the same everywhere. Korea is UTC+9.
- Index (100 = window average)
- Each 15-minute slot's volume relative to the average of the 04:00–10:00 UTC window. 87 = 13% quieter, 122 = 22% busier.
Summary
Korea and London barely overlap on this tape. KRX regular hours end at 15:30 KST, which is 06:30 UTC. London opens at 08:00 UTC in winter and 07:00 UTC in summer — a 90-minute gap in winter and a 30-minute gap in summer.
Volume fades into the Korean close, then rebuilds into London. It does not spike at 06:30. For BTC, the KRX-close bar (06:15–06:30) is 87 in winter and 98 in summer versus the 04:00–10:00 mean. The first London bar is 122 in winter (08:00) and 112 in summer (07:00).
Key figures
Evidence
In plain English
Each number is that 15-minute slot's volume compared with the average of 04:00–10:00 UTC (100). Below 100 = quieter than average, above 100 = busier. The pattern is a dip near 06:15–06:30 UTC and a rise by London open.
15-minute handoff
Weekday Binance spot USDT volume. Index 100 is the mean of the 04:00–10:00 UTC window. KRX closing auction sits inside 06:15–06:30 UTC.
| Symbol | Winter 06:15 | Winter 06:30 | Winter 07:00 | Winter 08:00 LSE | Summer 06:15 | Summer 06:30 | Summer 07:00 LSE |
|---|---|---|---|---|---|---|---|
| BTCUSDT | 87 | 91 | 106 | 122 | 98 | 101 | 112 |
| ETHUSDT | 87 | 87 | 103 | 124 | 98 | 101 | 108 |
| XRPUSDT | 90 | 96 | 103 | 114 | 102 | 107 | 116 |
| SOLUSDT | 88 | 97 | 106 | 113 | 105 | 103 | 109 |
06:30–06:45 is the first bar after the official Korean cash close. See also intraday sessions.
Caveats
Notes are educational. They are not investment advice and they do not recommend trades. Historical or simulated results are not a live track record.
This is Binance spot USDT volume, not KRX cash, Upbit or LSE cash. A fade-then-rebuild profile is not a trade. DST splits London; Korea stays on KST.
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