Stocks on Wall Street shook off a weak start and closed slightly higher Friday, snapping a four-week losing streak. The S&P 500 edged up 0.1%. The index finished with a 0.5% gain for the week. It’s still down 4.8% so far this month. The Dow Jones Industrial Average eked out a 0.1% gain, while the Nasdaq composite rose 0.5%.

While investors are torn on Tesla, they are near unanimous on rating Nvidia a buy. Of the 42 analysts who have issued research reports on the company over the last three months, 39 assign the stock a buy rating, while three say hold. The average price target implies nearly 50% upside.

One of the richest men in the world, Warren Buffett famously loves legal monopolies, businesses with moats so big as to prevent more than one company from competing in the market they dominate. It’s no surprise,