Bitcoin reclaimed $50,000 on September 5, 2021 and finished Coinbase’s UTC trading session at $51,789.17, extending the cryptocurrency market’s recovery before El Salvador’s Bitcoin Law was scheduled to take effect on September 7.
The Coinbase BTC-USD daily candle opened at $49,944.89, reached $51,907.08 and recorded a low of $49,500. Its close represented a 3.69% open-to-close gain, calculated as $51,789.17 divided by $49,944.89 minus one. Coinbase reported 7,743.93 BTC of base-asset volume during the 00:00–24:00 UTC window.
Those figures describe one U.S.-dollar market on one exchange. Cryptocurrency trades continuously, without a consolidated global closing auction, so prices, volumes and daily percentage changes vary by venue and cutoff convention.
Cross-venue records confirmed the move
Kraken’s report for September 5 placed bitcoin at $51,767, up 3.6%, with $259.5 million traded across its bitcoin markets. Kraken reported $919.2 million in total spot volume for the day. Bitcoin, tether, ether, cardano and polkadot were its five most-traded assets.
The small difference between Kraken’s $51,767 reading and Coinbase’s $51,789.17 close is expected in a fragmented market. The two records nevertheless support the same conclusion: bitcoin had moved decisively through $50,000 and remained above $51,700 at the end of the UTC session.
Reuters supplied an earlier intraday checkpoint. At 10:04 GMT, it recorded bitcoin at $50,188.40, up 0.49% from its stated previous close. Ether was $3,932.07 at that time, up 1.16%. The report establishes when the $50,000 threshold had been recovered, while the exchange candles show that gains accelerated later in the session.
The advance was not confined to bitcoin. Kraken’s event-day report listed ether at $3,954, up 1.7%, and solana at $142.20, up 2.1%. Filecoin gained 20% and litecoin 9.6% on Kraken’s displayed daily measurements. Those venue-specific figures show broad participation, but they do not establish a single cause for the rally.
El Salvador supplied an institutional backdrop
The timing gave the market move unusual institutional context. El Salvador’s Legislative Decree No. 57 had designated bitcoin as legal tender and provided that the law would enter into force 90 days after its June 9 publication in the Official Gazette. That placed implementation on September 7, two days after the market session covered here.
The law said prices could be expressed in bitcoin, tax obligations could be paid with it and the state would provide alternatives for conversion between bitcoin and the U.S. dollar. It also contemplated a government-backed trust to support automatic convertibility. On September 5, those provisions were enacted but not yet in force.
The proximity of the launch made El Salvador prominent in contemporaneous bitcoin discussion, but the available trading data cannot demonstrate that the law caused September 5’s buying. A daily candle records executed trades, not investor motives. Broader cryptocurrency momentum, derivatives positioning, weekend liquidity and expectations surrounding the September 7 implementation could all have contributed.
What September 5 established
The defensible event-day finding is narrow: Coinbase BTC-USD gained 3.69% from its September 5 UTC open to close, traded as high as $51,907.08 and closed at $51,789.17. Kraken independently recorded bitcoin above $51,700 with a similar daily return, while Reuters documented the earlier crossing of $50,000.
That evidence established a substantial weekend advance immediately before a nationally significant bitcoin policy experiment. It did not establish that the rally would persist, that every venue printed the same price or that El Salvador’s implementation would operate successfully.
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