Bitcoin traded above $27,000 on March 18, 2023, completing a sharp rebound while failures and emergency interventions unsettled the banking system around cryptocurrency’s principal fiat gateways. The move was verifiable; its precise size depended on the venue and measurement window, while claims that bank instability caused investors to embrace bitcoin remained interpretation rather than demonstrated causation.
The Block’s market wrap, published at 3:40 p.m. Eastern on March 18, reported bitcoin at $27,401 and calculated a 35.05% gain over its weekly comparison window using TradingView. Ether was reported at $1,794, up 24.74% on the same basis. Those figures made the rally the day’s most consequential crypto-market development: the two largest digital assets were advancing despite severe disruption among banks serving technology and digital-asset companies.
What the market measurements showed
The Block also reported that Coinbase shares gained 33% over the stock-market week, MicroStrategy rose 30% and Grayscale Bitcoin Trust advanced 33% to $15.43. Silvergate shares moved in the opposite direction, falling 38.62% to $2.05. These equity and trust figures covered conventional trading sessions, whereas bitcoin and ether traded continuously through the weekend.
That distinction limits any description of a cryptocurrency “weekly close.” The Block’s article identified TradingView as its chart source but did not specify the exchange, time zone or exact candle boundaries in the text. Its $27,401 level should therefore be treated as a timestamped market snapshot, not a universal closing price.
NYDIG’s research note published March 17 supplied a separate calculation. It measured bitcoin up 24.4% over its preceding week, 5.3 percentage points ahead of ether, with bitcoin’s share of total crypto capitalization above 46%. NYDIG also calculated average hourly bitcoin returns from March 10 through its cutoff at 0.12% during 9 a.m.–5 p.m. Eastern and 0.18% outside those hours. The difference between NYDIG’s 24.4% result and The Block’s 35.05% figure illustrates why source, cutoff and comparison interval must accompany market percentages.
The banking-policy backdrop
The rally followed extraordinary measures announced on March 12. The Treasury Department, Federal Reserve and Federal Deposit Insurance Corporation said all depositors at Silicon Valley Bank and Signature Bank would be made whole under systemic-risk exceptions, while shareholders and certain unsecured debtholders would not receive protection.
The Federal Reserve simultaneously created the Bank Term Funding Program. The program offered eligible depository institutions loans of up to one year against qualifying U.S. Treasury securities, agency debt and agency mortgage-backed securities valued at par. Treasury made up to $25 billion from the Exchange Stabilization Fund available as a backstop, although the Federal Reserve said it did not expect that support to be required.
Signature Bank’s closure was especially relevant to cryptocurrency companies. New York’s Department of Financial Services took possession of the bank on March 12 and appointed the FDIC as receiver. The department reported that Signature had approximately $110.36 billion in assets and $88.59 billion in deposits as of December 31, 2022. NYDIG characterized Signature and the winding-down Silvergate Bank as important partners for digital-asset businesses, meaning the industry was losing banking infrastructure even as token prices rose.
What could and could not be concluded
By March 18, the evidence established a large, broad market rebound and a banking crisis that had altered expectations about liquidity and interest rates. It did not establish a single motive shared by buyers. Bitcoin’s scarcity narrative, reduced confidence in banks, expectations of slower monetary tightening, short-position liquidations and ordinary risk-asset demand were competing explanations.
The strongest event-day conclusion was narrower: bitcoin remained above $27,000 in the cited March 18 snapshot while regulators were containing bank failures and crypto businesses were confronting diminished access to dollar payment rails. Whether that combination represented durable demand or a temporary repricing remained unresolved on March 18, 2023.
The complete source packet and revision history are retained with the newsroom record.
Automated systems may have assisted with source organization and drafting. Coinburn is accountable for the published text and maintains a revision record.
This article provides news and analysis, not investment, legal or tax advice. Digital assets are volatile and may result in total loss.

