I'm searching for a broker that has all US SHARES CFDs (NYSE and NASDAQ) with more than 5x leverage. The ones I've found so far only have the major stocks with high leverage. I’m aware that it probably has to be an unregulated broker as regulated brokers usually cannot offer more than 5x leverage.
Portfolio margin in a regulated brokerage account gives you 15% margin, though less for a concentrated portfolio. You need $100,000 for portfolio margin.