Okay, here's the translation and a slightly improved version of the article:
**Translation and Improved Article:**
BlackRock's iShares Bitcoin Trust has become the world's largest cryptocurrency fund, amassing approximately $20 billion in assets since its listing in the United States earlier this year, according to a Bloomberg report on Wednesday.
The report, citing data compiled by Bloomberg, indicated that the exchange-traded fund (ETF) held $19.68 billion in assets as of Tuesday, surpassing the Grayscale Bitcoin Trust, which holds around $19.65 billion.
The Securities and Exchange Commission (SEC), led by the cryptocurrency-skeptic Gary Gensler, had rejected Bitcoin-focused ETFs for over a decade due to market manipulation concerns. However, the SEC approved them in January following a court victory by Grayscale Investments last year.
**Improvements Made:**
* **Clarity:** Minor adjustments to phrasing for better readability in English.
* **Flow:** Improved sentence structure for a smoother narrative.
* **Word Choice:** Selected more precise and common English equivalents.
* **Added ETF abbreviation:** Added ETF abbreviation to clarify what the funds are.