Stock investing is filled with intricate strategies and approaches, yet some of the most successful investors have done little more than stick with the basics. That generally means using funds for the bulk of your portfolio — Warren Buffett has famously said a low-cost S&P 500 index fund is the best investment most Americans can make — and choosing individual stocks only if you believe in the company’s potential for long-term growth.
It's crucial to educate yourself before you wade into any type of investment or investment strategy. This beginner's guide to online stock trading will give you a starting point and walk you through several processes: choosing a discount broker, the 12 types of stock trades you can make, how to select individual stocks, uncovering hidden fees, expenses, and commissions, and much more. 
The nine-year-old bull market in U.S. stocks has been dominated by growth and momentum plays, such as the popular FAANG group of stocks. These momentum stocks have significantly outperformed value stocks, and Oppenheimer analyst Ari Wald says there’s no reason for investors to be fearful of momentum stocks just because stock prices are near all-time highs. After nine years, a certain degree of caution is understandable, but Wald says price action has remained bullish. Wald and the Oppenheimer analyst team recently selected the best momentum stock to buy in each of nine different market sectors.
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Still, other momentum strategies involve cross-asset analysis. For example, some equity traders closely watch the Treasury yield curve and use it as a momentum signal for equity entries and exits. A 10-year Treasury yield above the two-year yield generally is a buy signal, whereas a two-year yield trading above the 10-year is a sell signal. Notably, the two-year versus 10-year Treasury yields tend to be a strong predictor of recessions, and also has implications for stock markets.