Week of 26 May 2025: Bitcoin slips 3.08% after four rising weeks while Ether holds nearly flat
When Bitcoin gives back part of a strong run on below-average volume and Ether holds up better, what can one week of prices say about whether the trend is pausing or turning?
BTC fell from 109,004.2 to 105,642.93 (-3.08%) and ETH from 2,551.22 to 2,539.21 (-0.47%), leaving the ETH/BTC ratio 2.7% higher. Both highs came before both lows. BTC dollar volume was 0.79 times its prior twelve-week average; ETH's was 1.16 times. BTC's weekly return ranked at the 24th percentile of 380 weeks of history.
What the data shows. BTC set its high of 110,718.0 at 13:00 UTC on Tuesday 27 May and its low of 103,068.55 at 03:00 UTC on Saturday 31 May, a range of 7.42%. The close sat in the middle third of that range. The week's largest hourly move was -1.56%, in the hour starting 16:00 UTC on Friday 30 May. ETH fell less (-0.47%) but swung more: a range of 12.94%, realised volatility (the size of actual moves scaled to a yearly figure) of 56.9% against BTC's 29.8%, and a high of 2,788.0 on Thursday 29 May followed by a low of 2,468.56 on Sunday 1 June. The two assets moved together at an hourly correlation of 0.75.
What it does not show. Price and volume describe what traded, not why. Nothing here identifies who was selling, or whether the quieter BTC volume reflects restraint or simply less interest. The data cannot say whether the four rising weeks before this one (0.56%, 10.44%, 2.24%, 2.4%) resumed or ended.
What a careful desk would check. A modest weekly decline with below-average volume reads differently from the same decline on heavy volume. BTC's 3.08% fall ranked at the 24th percentile of 380 weeks, so it is unremarkable by history alone. A desk would note that the weekly high came before the low in both assets, and that the worst hour for each, Friday 30 May at 16:00 UTC, was shared, then ask whether its sizing assumed a quiet week.
Ether against Bitcoin. The ETH/BTC ratio rose 2.7% while both assets fell, so Ether held its value relative to Bitcoin. ETH's weekly return also beat BTC's by 2.61 percentage points. That pattern can appear when a leader pauses; it says nothing about whether Ether was being bought or merely sold less.
What would change this reading
- If BTC trades above this week's high of 110,718.0 in a later week, the decline reads as a pause in an upswing.
- If BTC trades below this week's low of 103,068.55 while volume rises above its prior twelve-week average, the quiet-volume reading weakens.
- If the ETH/BTC ratio keeps rising by about 2.7% per week, the divergence between the two assets has become a trend rather than a single week.
Terms
- realised volatility
- how much the price actually swung over the week, expressed as a yearly percentage
- ETH/BTC ratio
- the price of Ether expressed in Bitcoin; it rises when Ether holds up better than Bitcoin
- hourly correlation
- how closely two prices moved together hour by hour, from -1 to 1