Week of 5 July 2021: Bitcoin and Ether fall on thin volume as Ether lags by 4.93 points
When two assets fall together on volume well below their recent average, what does the difference in where each closed inside its range tell a careful reader?
BTC fell from 35,288.13 to 34,258.99 (-2.92%) and ETH from 2,322.69 to 2,140.45 (-7.85%). Dollar volume was 0.42 times BTC's and 0.47 times ETH's prior twelve-week average. BTC closed in the upper third of its range; ETH closed in the lower third.
What the data shows. BTC set its weekly high of 35,293.78 in the week's opening hour on Monday 5 July, then slid to a low of 32,077.00 at 11:00 UTC on Thursday 8 July, a range of 10.03%. Its best day was Friday 9 July (+2.86%) and its worst Monday (-4.53%), which also carried the largest hourly move, -3.18% in the hour starting 11:00 UTC. BTC closed at 34,258.99, in the upper third of the range. ETH moved the same direction but further: a high of 2,409.00 on Wednesday 7 July at 07:00 UTC, a low of 2,046.51 on Friday 9 July at 01:00 UTC, a range of 17.71%, and a close in the lower third. The two traded closely hour by hour (correlation 0.89), yet ETH lost 4.93 percentage points more than BTC, so the ETH/BTC ratio fell 5.08%.
What it does not show. The data cannot say why ETH fell further or whether the lag continues. Volume below the prior twelve-week average (0.42 times for BTC, 0.47 for ETH) tells us less capital changed hands than in recent weeks; it does not say whether that reflects conviction or simply fewer participants. Both assets sat 46.95% and 50.6% below their 52-week highs, but the data shows nothing about what came next.
What a careful desk would check. Realised volatility, the size of the swings that actually happened scaled to a yearly figure, was 60.2% for BTC and 87.1% for ETH. BTC's close in the upper third against ETH's close in the lower third is the week's clearest divergence, and a desk would ask whether later weeks confirm it in the ratio or reverse it.
What would change this reading
- If the ETH/BTC ratio keeps falling after a 5.08% weekly drop, ETH's lag is becoming a trend rather than one week's divergence.
- If volume returns towards its prior twelve-week average while price holds, this week's low-volume decline reads as a quiet drift rather than a test of demand.
- If BTC trades below its weekly low of 32,077.00, the upper-third close was a pause inside a decline.
- If funding stays near zero for both assets, no leveraged side is paying meaningfully to stay in place.
Terms
- realised volatility
- how much the price actually swung over a period, expressed as a yearly percentage
- correlation
- how closely two prices moved together hour by hour, from -1 to 1
- perpetual funding
- a regular payment between long and short holders of a perpetual futures contract; negative means shorts pay longs