There are plenty of interesting and simple online tools which can be used to improve your trading results, such as the Relative Strength Index (RSI). This is just one example from among dozens of possible technical analysis (TA) options, and you will need to discover and decide which ones work best for you. You may need to paper trade to figure out the best TA tools for you and your strategy. Besides these sorts of technical analysis indicators, there are a few "tried and true" rules:
A market index tracks the performance of a group of stocks, which either represents the market as a whole or a specific sector of the market, like technology or retail companies. You’re likely to hear most about the S&P 500, the Nasdaq composite and the Dow Jones Industrial Average; they are often used as proxies for the performance of the overall market.
Payout ratio -- The payout ratio is a good metric for dividend investors to know and is the company's annual dividend rate expressed as a percentage of its earnings. For example, if a company paid out $1.00 in dividends per share last year and earned $2.00, it would have a 50% payout ratio. A payout ratio can tell you if a company's dividend is sustainable or if a dividend cut could be possible.
Discount brokers used to be the exception, but now they're the norm. Discount online brokers give you tools to select and place your own transactions, and many of them also offer a set-it-and-forget-it robo-advisory service too. As the space of financial services has progressed in the 21st century, online brokers have added more features including educational materials on their sites and mobile apps.
A $50 stock can be more expensive than an $800 stock because the share price means nothing on its own. The relationship of price-to-earnings and net assets is what determines if a stock is over- or under-valued. Companies can keep prices artificially high by never conducting a stock split, yet without having the underlying foundational support. Make no assumptions based on price alone.
Phrases like “earnings movers” and “intraday highs” don’t mean much to the average investor, and in many cases, they shouldn’t. If you’re in it for the long term — with, say, a portfolio of mutual funds geared toward retirement — you don’t need to worry about what these words mean, or about the flashes of red or green that cross the bottom of your TV screen. You can get by just fine without understanding the stock market much at all.
You’ll come across an overwhelming amount of information as you screen potential business partners. But it’s easier to home in on the right stuff when wearing a “business buyer” hat. You want to know how this company operates, its place in the overall industry, its competitors, its long-term prospects and whether it brings something new to the portfolio of businesses you already own.