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first_img Castle Labs: Variational Swaps have execution costs 8 to 12 times lower than mainstream on-chain venues

Castle Labs released a research report on September 10, comparing the execution costs of the swaps products launched by Variational with traditional perpetual contracts. The report shows that for most trading volumes, Variational is currently the lowest-cost venue among listed assets, with the cost of a $1 million trade in the US100 market being only $47.The report points out that the trading volume of RWA perpetual contracts has grown from less than $1 billion in October 2025 to over $12 billion in August 2026, currently accounting for about 12% to 13% of on-chain perpetual contract trading volume, with a peak in July reaching 20%. As of the report's release, the total open interest of RWA perpetual contracts was $4.9 billion, with TradeXYZ and Variational accounting for nearly 90%.Variational's swaps utilize RFQ execution and the proprietary liquidity provider Omni, with liquidity coming directly from traditional financial partners, and the fees being a holding cost charged once at the daily close, rather than relying on market supply and demand funding rates. Since the launch of the US100, US500, XAU, XAG, and USOIL markets at the beginning of the month, a total trading volume of $3.8 billion has been accumulated, with a peak open interest of $245 million. Currently, swaps have contributed over 50% of Variational's daily trading volume and more than $220 million in open interest.

first_img Castle opens Bitcoin savings stack to individuals, with dividends redeemable for Bitcoin at any ratio

According to Bitcoin Magazine, the Bitcoin fintech company Castle announced that it will open its automated Bitcoin financial stack to individual users and launch a pioneering feature in this category: users can choose to receive dividend income in cash or Bitcoin at any ratio.Castle's revenue comes from the perpetual preferred stock STRC issued by Strategy, which was incorporated into the platform earlier this year and currently pays an annualized dividend of 12% on a semi-monthly basis. Users can receive 100% of the dividends in cash, convert 100% to Bitcoin, or choose any ratio between the two. According to the company, most users opt for a compromise solution, using cash to cover daily expenses while automatically reinvesting the remaining portion into Bitcoin with each dividend payout.Castle co-founder and CTO João Almeida stated that investors have long faced a dilemma of choosing between stable income and holding Bitcoin. Castle allows users to achieve both cash flow and long-term upside by automatically converting a portion of the dividends into Bitcoin. Previously, Castle only catered to business clients such as restaurants, gyms, accounting firms, and e-commerce; the opening of personal accounts was due to repeated requests from business owners. Castle was co-founded by Almeida and CEO Stephen Cole and has received investments from Boost VC and Winklevoss Capital.

hot_img DraftKings Q2 revenue was $1.443 billion, a year-on-year decrease of 5%, with market business growth forecasted to exceed expectations

DraftKings announced its Q2 2026 financial report, with revenue of $1.443 billion, a year-on-year decrease of 5%, mainly affected by customer-friendly sports outcomes and increased customer acquisition promotional spending; net loss of $67.61 million, compared to a net profit of $158 million in the same period last year; adjusted EBITDA was $115 million, down from $301 million in the same period last year. The sports consumer transaction volume reached $13.1 billion, a year-on-year increase of 15%, with monthly active paying users (MUP) of approximately 3.6 million, a year-on-year increase of 9%, and average revenue per monthly active paying user (ARPMUP) decreased by 13% to $132.CEO Jason Robins stated that the market business has exceeded expectations since its launch in December last year, with relevant customer metrics performing similarly to sports betting, showing strong user acquisition and retention, and the super app has been launched nationwide. The company maintains its guidance for full-year revenue of $6.5 to $6.9 billion and adjusted EBITDA of $700 to $900 million. DraftKings currently offers mobile sports betting services in 27 states and Washington D.C., and Puerto Rico, covering approximately 53% of the U.S. population, with iGaming available in 5 states. The Canadian market has covered Alberta and Ontario, accounting for about 51% of the Canadian population.
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