[gpt3] a new article in English that is SEO-optimized and incorporates as many relevant keywords as possible. The article should be based on the information provided in the existing post content. Additionally, please include a dedicated FAQ section and a conclusion section to enhance the reader's experience
About a dozen companies, including BlackRock, Fidelity and Grayscale, sought to create bitcoin (BTC) ETFs. In recent days they've announced – and, in some cases, slashed – the fees they plan to charge investors, suggesting a fierce battle to win investors' money is ahead. These are spot ETFs, meaning they hold bitcoin itself, versus the already-approved bitcoin futures ETFs, which hold derivatives contracts tied to BTC.