Bitcoin Retakes $81,000 as Its 90-Day Gold Correlation Tops 50%

Bitcoin held above $81,000 through Friday morning in Asian trading, and the asset moving with it is gold. Grayscale put bitcoin's 90-day correlation with gold above 50% in research published on 27 August, against a reading close to zero at the start of 2026. Bitwise measures the same end-of-August window as the strongest bitcoin-gold correlation since 2020. The link to the Nasdaq 100 went the other way over that stretch, easing to about 33% from more than 60%. Correlation is a measure of how closely two prices move together, and it carries no explanation of why.

Two desks, one window

Grayscale's figure is a level. Bitwise's is a ranking. The two do not conflict. Glassnode supplies a third reading, with bitcoin's 30-day correlation to the S&P 500 falling to near zero during the August rally. Eric Balchunas, the Bloomberg ETF analyst, told The Block that the change sits on the other side of the ledger: "Bitcoin has always been about .40, it's gold and Treasurys that have become much more correlated." On his six-month numbers bitcoin tracked US stocks less closely than gold, small caps, emerging markets or Treasurys did. Andre Dragosch, who heads European research at Bitwise, read the same data as a change in what investors are buying the two assets for.

"Investors are no longer asking whether to hedge currency debasement with gold or bitcoin. They're simply hedging with both," Dragosch told Bitcoin Magazine on Thursday.

What Thursday's tape did

The move ran across the majors. The Block put total crypto market capitalisation at $2.82 trillion on Thursday afternoon in New York, with bitcoin at $81,460 and up 5.4% on the day, its highest print in more than seven months. CoinGecko showed $81,096 early on Friday in UTC terms, up 4.4%, on a 24-hour range of $77,107 to $82,108. CoinDesk's Friday morning read had it over $81,000 and up about 4%. Those percentages cover different 24-hour windows and do not reconcile into a single number. Zcash led the session on both counts, up nearly 15% by CoinDesk's reckoning and 16.5% by The Block's. Bitcoin was up around 1% on the week, which puts the bulk of the rally in August rather than in this session.

The ETF counts do not agree

Two tallies of Thursday's US spot bitcoin ETF flows are on the record and they are far apart. CoinDesk gave provisional inflows of about $277 million, after four sessions that alternated between inflows and outflows. The Block's markets wrap the same afternoon gave $100 million. We could not establish which count supersedes the other. A third figure sits nearby and measures something else entirely: The Block's correlation piece put average daily inflows near $290 million at the height of the August rally, on daily trading volume of about $3 billion. Rate expectations moved in the background of all of it. CME's FedWatch tool had a September increase at roughly even odds by Friday, down from above 63% earlier in the week, after Fed Governor Christopher Waller said he would back a hold if price pressures kept easing. The committee meets on 16 September.

How durable the decoupling is

Glassnode's caution is that decorrelations during sovereign bond selloffs have tended to be short-lived. Cointribune put the point more bluntly, calling this kind of sudden move historically temporary and closer to local exhaustion than to a structural shift. The 10-year Treasury yield sat around 4.8% on Thursday, and the Treasury has more than doubled the size of its debt repurchases, an operation this desk covered when bitcoin cleared $72,000 in the summer. Gold added about 5% over the week bitcoin rose 22.4%. CoinDesk reported on Friday that one bitcoin now buys a little more than 18 ounces of gold, the most since January; no other outlet reviewed for this piece carried that ratio, and it rests on one account. Bitcoin was holding $78,000 five days ago. What the correlation data cannot say is whether the same hands are buying both assets, or whether the next bond-market session breaks the pattern the way earlier ones did.