BTC logs best week since October 2025

TLDR

Bitcoin (BTC) just delivered one of its strongest weeks in years, with both price and ETF flows back near levels last seen in late 2025.

1. BTC jumped roughly 23 percent over seven days to around 77,000 dollars, its largest weekly gain in about two years and a new cycle high.
2. The move was powered by US Treasury bond buyback plans, a short squeeze, and about 1.9 billion dollars of spot BTC ETF inflows, the biggest week since October 2025.
3. BTC is still about 38 percent below its October 2025 peak, ETF flows remain net negative for 2026, and sentiment is in extreme greed, so watching flows, yields, and key price levels is critical.

Deep Dive

1. Scale Of The Bitcoin Rally

Market data show BTC up about 23.56 percent over the past seven days, with weekly volume near 40 billion dollars and market cap around 1.58 trillion dollars.

Several reports note BTC rising from roughly 63,000 dollars to the high 70,000s, with one analysis calling it the largest weekly dollar gain on record, adding about 14,264 dollars in a single week and closing near 77,387 dollars.

Over the same period, total crypto market cap climbed from about 2.18 trillion to 2.65 trillion dollars, a gain of roughly 21 percent, while BTC dominance ticked higher toward about 59 to 60 percent, showing the rally was led by Bitcoin.

2. Macro And ETF Flow Drivers

A key catalyst was the US Treasury announcing it would expand long dated government bond buybacks, doubling the maximum size of certain operations to at least 4 billion dollars per auction. Lower yields boosted risk appetite and helped trigger a sharp move into crypto.

Spot BTC ETFs recorded about 1.92 billion dollars of net inflows in the week ending August 21, their strongest weekly intake in roughly ten months and the biggest since an October 2025 inflow wave, according to multiple analyses of SoSoValue data.

This wave of institutional demand coincided with a large short squeeze, with reports citing around 2.7 billion dollars in short liquidations, and with broader pro crypto signals such as high level political meetings and regulatory framework discussions that improved sentiment.

3. Where BTC Stands Now And What To Watch

Despite the surge, BTC remains roughly 38 percent below its October 2025 all time high near 126,000 dollars, and spot BTC ETFs are still in net outflow for 2026, with several billion dollars withdrawn year to date.

Sentiment gauges show greed rising toward extreme greed territory, while technical commentators point to resistance around 78,000 to 80,000 dollars and note that daily momentum indicators are stretched, which often precedes periods of consolidation or pullbacks.

At the same time, prior episodes of very strong ETF inflows in October 2025 were followed by a sharp market selloff, so many analysts highlight ETF net flows, long term yields, derivatives funding and open interest, and BTC dominance as the main signals to watch for sustainability or reversal.

Conclusion

Bitcoins best week in years reflects a sharp shift in macro conditions and institutional demand, with bond buybacks and renewed ETF inflows pulling capital back into the asset.

The move has reset BTC to a stronger position in the current cycle but has not yet reclaimed its 2025 peak, leaving room for both further upside and significant volatility.

Watching ETF flows, interest rates, and how BTC behaves around the 78,000 to 80,000 dollar zone can help gauge whether this is the start of a sustained leg higher or another crowded relief rally.