Week of 17 June 2019: Bitcoin rises 21.81% to within 2.07% of its 52-week high
When Bitcoin posts one of its strongest weekly gains in more than a year while Ether lags, what does the price data establish, and what would a desk need to check before reading it as a trend?
BTC rose from 8,953.00 to 10,906.07 (+21.81%), a 97th-percentile week across 70 weeks of history, closing 2.07% below its 52-week high. ETH gained 15.24% to 308.52 but stayed 39.22% below its own 52-week high. BTC dollar volume was $3.76bn, 1.99 times the prior 12-week average.
What the data shows. BTC's low of 8,950.00 came in the first hour of Monday 17 June, and the high of 11,392.64 arrived at 21:00 UTC on Sunday 23 June, so the week rose from open to close with the low before the high. The range from low to high was 27.29%. The best day was Friday 21 June (+6.74%); the worst was Tuesday 18 June (-2.48%). The largest hourly move was +3.73% in the hour starting 01:00 UTC on Saturday 22 June. The close sat at 80.1% of the week's range, in the upper third. Volume was 1.99 times the prior twelve-week average for BTC and 1.18 times for ETH. The two assets moved in the same direction but only loosely hour by hour (correlation 0.69), and the ETH/BTC ratio fell 5.4%, so BTC led.
What it does not show. The data records prices, not causes. Nothing here identifies who was buying or whether the buying was leveraged. The percentile ranking (97th of 70 weeks) describes rarity, not persistence: a strong week does not establish a trend. The gap to the 52-week high differs sharply between the two assets — 2.07% for BTC versus 39.22% for ETH — but the data cannot say whether that gap narrows.
What a careful desk would check. Realised volatility, the size of the swings that actually happened scaled to a yearly figure, was 74.1% for BTC and 63.1% for ETH. A +3.73% hour sits inside that. Funding figures are absent, so crowding cannot be measured here. A desk would ask whether its sizing holds if the Tuesday-type day (-2.48%) recurs after three up weeks (5.73%, 1.32%, 17.38% around a -12.58%).
Ether against Bitcoin. ETH's +15.24% trailed BTC's +21.81% by 6.57 percentage points. Ether also peaked at the same hour as Bitcoin (21:00 UTC Sunday) yet remains far deeper in its own drawdown, so relative strength is not established by this week alone.
What would change this reading
- If BTC trades below this week's low of 8,950.00 in a later week, the 97th-percentile gain reads as a spike that failed rather than a durable advance.
- If the ETH/BTC ratio stops falling while BTC holds above 10,906.07, the week's lag by Ether is being repaired.
- If a later week records volume near the prior 12-week average while price holds near 11,392.64, the move was absorbed rather than driven by a one-off surge of activity.
- If funding data becomes available and shows strongly positive rates, the crowding question this week's data cannot answer would need revisiting.
Terms
- realised volatility
- how much the price actually swung over a period, expressed as a yearly percentage
- correlation
- how closely two prices move together hour by hour, from -1 to 1; 0.69 is loose
- percentile
- the share of past weeks with a smaller move; 97th means only 3% of the 70 prior weeks were stronger