Have you ever asked yourself, "What is stock?" or wondered why shares of stock exist? This introduction to the world of investing in stocks will provide answers to those questions and show you just how simple Wall Street really is. It may turn out to be one of the most important articles you've ever read if you don't understand what stocks represent. Find out the answer to "What is Stock?" and how it comes to exist ...
If you’re trying your hand at stock trading for the first time, know that focusing on anything but long-term results will expose you to frequent bouts of agita. Most investors are best served by keeping things simple and investing in a diversified mix of low-cost index funds to achieve — and this is key — long-term outperformance. Because, oof… the short-term ups and downs in the market can be brutal.

Robo-advisors like Wealthsimple, Wealthfront, and Betterment use algorithms to determine your investment strategy. You just plug in your time frame and risk tolerance and their computers do the rest. And because they’re targeted for a younger crowd, fees are rock bottom. Wealthsimple and Betterment both have no account minimum, while Wealthfront requires $500. Wealthsimple charges an annual 0.5% advising fee; Wealthfront and Betterment charge just 0.25%.
TD Ameritrade has been a powerful player in the online stock trading ecosystem for years. The flipside to such robust platforms? Cost. Even though TD Ameritrade lowered its fees in 2017 from $9.99 to $6.95, pretty much every other major discount broker slashed its prices, too. TD Ameritrade remains one of the more expensive options out there, even with more than 100 commission-free ETFs. Though its pricing structure is more expensive than those of some of the other discount brokers, there are many traders who think it's a best-in-class trading platform.
Commissions for equity and options trades are $6.95 with a $0.75 fee per options contract. To qualify for $4.95 commissions for equity and options trades and a $0.50 fee per options contract, you must execute at least 30 equity or options trades per quarter. To continue receiving $4.95 equity and options trades and a $0.50 fee per options contract, you must execute at least 30 equity or options trades by the end of the following quarter. Regulatory and exchange fees may apply.
Thinkorswim, on the other hand, is a powerhouse designed for the advanced. This desktop application regularly racks up awards for its superior tools and features, things any other broker would charge a premium for — research reports, real-time data, charts, technical studies. Also included: customizable workspaces, extensive third-party research, a thriving trader chat room, and a fully functional mobile app.
There are risks associated with investing in a public offering, including unproven management, and established companies that may have substantial debt. As such, they may not be appropriate for every investor. Customers should read the offering prospectus carefully, and make their own determination of whether an investment in the offering is consistent with their investment objectives, financial situation, and risk tolerance.
If you want to learn more about how to invest in a stock, check out the directory of Investing for Beginners articles I've written, sorted by topic or head over to my blog for more esoteric and advanced topics that aren't particularly appropriate for beginners. Whatever happens, remember that stocks are just one of many types of assets that you can use to build wealth and become financially independent. 
Worth noting: A 401(k) is a type of investment account, and if you’re participating in one, you may already be investing in stocks, likely through mutual funds. However, a 401(k) won’t offer you access to individual stocks, and your choice in mutual funds will likely be quite limited. Employer matching dollars make it worth contributing despite a limited investment selection, but once you’re contributing enough to earn that match, you can consider investing through other accounts.