Week of 9 December 2019: BTC and ETH fall about 5% on below-average volume
When both assets fall around 5% on light volume, with BTC about half below its 52-week high and ETH further down, what does a quiet decline reveal, and what can price not show?
BTC fell from 7,510.11 to 7,118.59 (-5.21%) and ETH from 150.44 to 142.46 (-5.30%). Both closed in the lower third of their weekly ranges on volume below the prior twelve-week average. BTC was 49.01% below its 52-week high.
What the data shows. Both assets peaked in the same hour: BTC at 7,650.00 and ETH at 151.19 at 15:00 UTC on Monday 9 December. That hour also carried BTC's largest hourly move, -1.56%. From there the week drifted lower. BTC's low, 7,008.35, arrived at 00:00 UTC on Sunday 15 December; ETH reached its low of 139.24 nearly three days earlier, at 01:00 UTC on Thursday 12 December. Weekly ranges were 9.16% for BTC and 8.58% for ETH. Daily moves stayed small: BTC's best day was 13 December (+0.84%), its worst 14 December (-2.66%); ETH's best 12 December (+1.02%), its worst 14 December (-2.08%). Volume was light — BTC at 0.67 times and ETH at 0.36 times the prior twelve-week average. Both closed in the lower third of their ranges (BTC at 17.2%, ETH at 26.9%). Hourly correlation was 0.78 and the ETH/BTC ratio changed only -0.10%, so the two fell together rather than one diverging.
What it does not show. Light volume is ambiguous. It can mean sellers ran out, or that buyers were absent; the candles do not distinguish the two, and nothing here identifies who traded or why. The BTC return ranked at the 24th percentile of the 95 recorded weeks, so this was a modest decline by that history, not an extreme one. The data cannot show whether the low near 7,008.35 marks a floor.
What a careful desk would check. Realised volatility — the yearly figure implied by the swings that actually happened — was 33.2% for BTC and 36.1% for ETH. A 5% weekly loss delivered inside a 9.16% range at that volatility is a slow bleed rather than a shock. A close at 17.2% of the range is a weaker finish than the daily moves suggest. The prior four weeks returned -5.95%, -18.81%, +7.11% and +1.60%, so a desk would test whether this week restarts the earlier slide or merely pauses it.
Funding. BTC funding averaged 0.0024% per eight hours, spanning -0.0114% to 0.01% — effectively flat. ETH funding stayed positive all week, averaging 0.0095% with a low of 0.0003%. Neither side paid meaningfully in BTC, so the decline came without visible crowding in perpetual positions.
What would change this reading
- If BTC trades below its weekly low of 7,008.35 while volume rises above the 0.67 times level, the quiet decline has acquired participation.
- If a later week closes back above the Monday high of 7,650.00, this week reads as drift inside a range rather than a new leg down.
- If ETH funding stays positive while its price revisits 139.24, longs are paying to hold the losing side.
Terms
- close location
- where the week's close falls between its low and its high, as a percentage
- realised volatility
- how much the price actually swung over a period, expressed as a yearly percentage
- percentile
- the share of past weeks with a lower value; the 24th percentile means 24% of the 95 recorded weeks were lower