TLDR

US spot Bitcoin ETFs pulled in $986.9 million last week, bringing the three-week total to $3.8 billion. BlackRock's IBIT led Friday inflows with $117.4 million, about 67% of the day's total. Bitcoin traded at $79,716 at time of reporting, up roughly 2.6% over seven days. Bitcoin's 50-day EMA is closing in on the 200-day EMA, with a golden cross projected around September 11. Coin Bureau flagged the upcoming golden cross as a historically bullish signal, while noting it is a lagging indicator.

US spot Bitcoin ETFs have posted their best three-week inflow run of 2026, pulling in $3.8 billion in total net flows. That stretch includes $986.9 million in the week ending Friday, September 5. The funds, first approved by US regulators in January 2024, have become one of the main conduits for institutional and retail exposure to Bitcoin, which is why weekly flow data is watched closely as a gauge of demand.

Total net assets across all US spot Bitcoin ETFs stood at $101.3 billion on Friday, after briefly touching $103.3 billion the day before. Cumulative net inflows reached $55.6 billion.

BlackRock's iShares Bitcoin Trust (IBIT) led the pack on Friday, drawing $117.4 million. IBIT has historically dominated category flows since launch, and last week was no exception in that concentration. Fidelity's Wise Origin Bitcoin Fund (FBTC) was the only other fund to see inflows, adding $57.2 million.

JUST IN: 🇺🇸 U.S. $BTC ETFs saw $986.8 million in inflow this week. pic.twitter.com/DamQf2D2LU — Whale Insider (@WhaleInsider) September 5, 2026

The week's total Friday inflows came in at $174.6 million, down sharply from the $731 million recorded on Thursday.

Bitcoin briefly dipped below $79,000 on Friday before recovering to $79,716 at the time of publication. That still marks a gain of about 2.6% over the past seven days.

ETF Flows vs. Ether and XRP

Bitcoin ETF inflows rose roughly 7% week-over-week. In contrast, US spot Ether ETF inflows dropped 74% to $218.4 million, while XRP ETF inflows fell 83% to $19 million. The divergence suggests the recent inflow streak has been Bitcoin-specific rather than a broad rally across crypto fund categories, though a single week of data does not establish a trend.

Both Ether and XRP ETFs remain in positive territory for the year. Ether ETFs have logged about $863 million in year-to-date net inflows, and XRP ETFs have brought in around $515 million.

Year-to-date net flows for Bitcoin ETFs remain roughly $1 billion negative, despite the recent turnaround.

Golden Cross Watch

At the same time, a key technical signal is forming in Bitcoin's price chart. As of September 1, Bitcoin's 50-day exponential moving average sat at $70,030, while the 200-day stood at $72,323 — a gap of about 3.2%. A golden cross — the shorter-term average crossing above the longer-term one — is one of the most widely followed trend signals in technical analysis, read by traders as evidence that medium-term momentum is improving relative to the longer trend.

A crossover is projected to occur around September 11 if prices hold near current levels.

Crypto analyst account Coin Bureau posted on X that Bitcoin is "about to flash a golden cross for the first time since November 2025." The account highlighted that the last three completed golden crosses sent Bitcoin up 50%, 45%, and 60% respectively. However, it also warned that the signal is lagging and has "sometimes reversed within weeks."

🚨BULLISH: Bitcoin is about to flash a golden cross for the first time since November 2025. Its 50-day average is crossing back above the 200-day, one of the oldest bullish signals in markets. The last three completed golden crosses each sent Bitcoin sharply higher: -… pic.twitter.com/0j5Zdf6B2k — Coin Bureau (@coinbureau) September 5, 2026

Across 12 golden cross signals since 2012, Bitcoin averaged a 24.9% three-month gain, though results varied widely.

CryptoQuant data noted that the late-August rally was driven mainly by short covering in derivatives, not fresh spot buying — a nuance worth holding alongside the bullish signal reading, since momentum built on covering of short positions can be less durable than momentum from new spot demand.

Bitcoin was trading near $77,000 on September 3, already above both moving averages. The projected September 11 crossover and next week's ETF flow figures are the near-term datapoints to watch.