Experienced investors such as Buffett eschew stock diversification in the confidence that they have performed all of the necessary research to identify and quantify their risk. They are also comfortable that they can identify any potential perils that will endanger their position, and will be able to liquidate their investments before taking a catastrophic loss. Andrew Carnegie is reputed to have said, “The safest investment strategy is to put all of your eggs in one basket and watch the basket.” That said, do not make the mistake of thinking you are either Buffett or Carnegie – especially in your first years of investing.

Pro tip: Another way to make sure your portfolio is diversified is to invest if different types of investments. Some people like to mix things up by investing in fine art through Masterworks. Fun fact – blue chip art returned 10.6% in 2018 compared to a 5.1% loss for the S&P 500. Others choose to invest in real estate through a company like DiversyFund.
Pro tip: Another way to make sure your portfolio is diversified is to invest if different types of investments. Some people like to mix things up by investing in fine art through Masterworks. Fun fact – blue chip art returned 10.6% in 2018 compared to a 5.1% loss for the S&P 500. Others choose to invest in real estate through a company like DiversyFund.
Use limit orders: Always use limit orders rather than market orders, when trading penny stocks. The very act of buying or selling shares in a company that is thinly traded can result in the price moving due to your trade. In other words, your buy might cause the shares to temporarily and artificially increase, then drop back down as soon as your purchase has been filled.

Comparing the cash flow statements of companies is going to help you narrow your list down even further. So you’ve found a few sectors that are really going to benefit from these broad themes, that’s step one. Then you find the companies within those sectors that are able to generate cash for investors at a faster pace and that are using cash responsibly.

Most of these services offer some form of free portfolio tracking - this enables you to create a portfolio and track it properly to see how you do with no money on the line. This used to be known as paper trading in the 'good old days' before 2001. This kind of exercise can be a good way to learn and play around with things without being either serious or costly.
You might hear experienced investors talk about the concept of a "wide moat," especially if you're reading anything about Warren Buffett's investment style. Just as a wide moat around a castle makes it difficult for enemies to invade, a company should have a "wide moat," too: a sustainable competitive advantage that will prevent competitors from stealing that company's market share.

ECN/Level 2 quotes: ECNs, or electronic communication networks, are computer-based systems that display the best available bid and ask quotes from multiple market participants and then automatically match and execute orders. Level 2 is a subscription-based service that provides real-time access to the Nasdaq order book composed of price quotes from market makers registering every Nasdaq-listed and OTC Bulletin Board security. Together, they can give you a sense of orders being executed in real time.
One of the most common mistakes in stock market investing is trying to time the market. Time the market, or “market timing,” means trying to figure out the best time to get in the market, or invest. It also means the best time to get out of the market, or sell. It’s not easy to be right on both ends. It can be unsettling to experience market volatility, so that’s why it’s important to understand the difference between savings (which are more stable) and investments (which can be more volatile). It’s the time in the market that is more important, not necessarily timing the market.
Nerd tip: If you're tempted to open a brokerage account but need more advice on choosing the right one, see our 2019 roundup of the best brokers for stock investors. It compares today's top online brokerages across all the metrics that matter most to investors: fees, investment selection, minimum balances to open and investor tools and resources. Read: Best online brokers for stock investors »
One constant principle of investing is that markets fluctuate. Stock prices will rise and fall for a number of reasons: the economy, investor sentiment, political uncertainty at home or abroad, energy or weather problems, or even corporate scandals. This means market performance isn’t always predictable. That is why diversification, or spreading the investments in your portfolio among different asset classes and across different sectors within each class, is such an important strategy. Diversification is a time-tested way to manage risk.
Diversify your portfolio with a healthy balance of low-risk, moderate-risk, and maybe some high-risk investments. Play it safe with the majority of your investments in tried and true stock options that always return a profit, and continue to invest in them. Now the profit margin may not be massive by any means with these, but it’s a safe bet that long-term investment will yield a healthy ROI. You should also invest in some moderate-risk options that show some promise of yielding a greater ROI percentage than the safer and more stable stock options. It is important to be careful and do some research on these investments, and try to get a sense of if it’s worth investing in. This is especially true for the high-risk investments.
We all know someone who has “tried” investing in the stock market, lost a lot of money, and denounced it as a scam. The truth is that the stock market is not a scam; it is an incredible wealth-building tool. Most people who lose money in stocks do so because they get spooked by a dip in the market and then panic. Fearing that they will lose all of their investment, they hastily sell their shares, often at a loss. This should not be the case. Investors must keep in mind that over the long run, the stock market tends to increase in value, so they should think twice before selling their investments in a panic.
To be perfectly clear, knowing how to identify great businesses is more important than being able to identify cheap stocks for beginners. A great business will typically be a good long-term performer, even if you buy in at a bit of an expensive valuation. On the other hand, a bad business that you invest in at a cheap valuation will seldom work out well.
What would make me sell: Sometimes there are good reasons to split up. For this part of your journal, compose an investing prenup that spells out what would drive you to sell the stock. We’re not talking about stock price movement, especially not short term, but fundamental changes to the business that affect its ability to grow over the long term. Some examples: The company loses a major customer, the CEO’s successor starts taking the business in a different direction, a major viable competitor emerges, or your investing thesis doesn’t pan out after a reasonable period of time.
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