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.

While E*TRADE’s baseline fees are a little high ($6.95 for stocks/ETFs, $6.95 plus 75 cents per contract for options) compared to Ally Invest, Charles Schwab, and Fidelity, E*TRADE does offer volume discounts. If you make more than 30 stock/ETFs trades per quarter, the fee drops to a very competitive $4.95, and if you trade more than 30 options per quarter, the contract fee goes down to 50 cents. That makes E*TRADE a good fit for active traders who keep a close eye on the market.

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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. 
How much money should I invest in stocks? If you’re investing through funds — have we mentioned this is our preference? — you can allocate a fairly large portion of your portfolio toward stock funds, especially if you have a long time horizon. A 30-year-old investing for retirement might have 80% of his or her portfolio in stock funds; the rest would be in bond funds. Individual stocks are another story. We’d recommend keeping these to 10% or less of your investment portfolio.
Stock mutual funds or exchange-traded funds. These mutual funds let you purchase small pieces of many different stocks in a single transaction. Index funds and ETFs are a kind of mutual fund that track an index; for example, a Standard & Poor’s 500 fund replicates that index by buying the stock of the companies in it. When you invest in a fund, you also own small pieces of each of those companies. You can put several funds together to build a diversified portfolio. Note that stock mutual funds are also sometimes called equity mutual funds.