Is it possible to place a ‘take profit’ and a ‘stop loss’ command simultaneously? As of the time of writing, excluding some leveraged trading exchanges, such as Bitmex, current trading exchanges do not support the placement of the two commands simultaneously. In a perfect world, we could have set both stop loss for trade and levels of profit taking, lowering the chance of substantially loss. Until that happens, we will settle for what we have – I usually set take profit levels for some part of the position, while setting a stop loss level for the other ones.
To be able to take short positions, we need to understand margin trading. Trading on margin means we are trading with borrowed money. On exchanges like Poloniex, we can trade Bitcoin with a handful of coins (there are fewer coins offered for margin trading) with 2.5x leverage. That is, if we own 1 BTC, we can borrow up to 2.5 BTC to trade with. To be clear, this is not 2.5 BTC that we own. Now, on a trade that nets us 10% profit, we are bringing home .25 BTC instead of .1 BTC.

The top of the order book will show you the lowest price at which someone is willing to sell a cryptocurrency, and the highest price at which someone is willing to buy it — but that doesn’t mean you can buy or sell the amount you want at that price. In fact, the amounts of a cryptocurrency that people are offering to buy or sell at the top of the order book are often quite small, which means that, if you’re trying to buy or sell a larger amount, you’ll have to go deeper into the order book: finding a counterparty who’s offering a price that isn’t as good as the “market price.”

Keeping up to speed with the news on Cointelegraph, seeking independent ratings on ICOs, and gathering as much information as you can on a coin’s background are essential steps before you decide to make an investment. After making a purchase, monitor any changes in price closely – and consider setting higher and upper limits on when you would want to sell your crypto, mitigating losses in the event of a crash and protecting profits after a surge.
TIP: A cryptocurrency wallet is a place where you store encrypted passwords that represent coins (the equivalent to storing money in a bank account). A cryptocurrency exchange is like a stock exchange or like a currency exchange in a foreign airport (a place people can trade cryptocurrency for other cryptocurrencies and fiat currencies like the US dollar). Just like if you want to trade stocks you need a bank account and access to the stock exchange, it is the same deal with cryptocurrency.
Speaking of the last two points, realize that crypto tends to be pattern based and tends to go in cycles. See “the cryptocurrency rotation” and “market cycles” for an in-depth look at what this means. You want to be in a coin before it starts its rotation, and then laddering out as its rotation ends. Likewise, in a perfect world you want to be in for the bull part of a market cycle, and out for the bear part. Near impossible to spot these trends in advance, but with experience you should be able to spot them as they occur and manage your positions accordingly.
When buying coins, and especially with Bitcoin, you will notice that your purchase is in decimal. A Bitcoin itself is relatively expensive, around $10,000 at the moment (as of 15th Feb '18). If you were to purchase say $5,000 of Bitcoin, you would at today's rate be purchasing around 0.5 of Bitcoin. Do not ever worry about this; Bitcoin operates at eight decimals places. You do not need to own a whole Bitcoin or any coin for that matter. Consider it like pence in the pound or cents in the dollar, but with more decimal places.
If you are doing any active trading, set stop losses. For any coins not in your medium or long-term holds, always set stop losses. This is important for several reasons — the most obvious is mitigating your losses. But more importantly, you force yourself to decide on a point of acceptable loss, and because you now have a reference point, you are able to measure your effectiveness to keep or adjust for future trades. Sometimes, during a market dip, altcoins can plummet, and stop losses can lead to profitability by automatically selling for fiat that you can use to re-enter at lower prices.

Congrats @nicolasvh and the team at Opus Labs - this has to be one of the top hunt's of the year IMHO. I'm heavy into crypto HODLing, trading and watching and have tried EVERY crypto tracker available for iOS. It's pretty simple; no trackers come close to Blockfolio, until now. Delta is the first app that has seriously challenged Blockfolio. Even if the team doesn't grow the feature set, it is hands-down better than Blockfolio, both in UI and functionality. Add that to the upcoming features that Nicolas mentions in the last paragraph of his intro and this app is OFF THE CHARTS!
Fundamental analysis is a methodology that was first conceived by the late American Investor, Benjamin Graham. It was then later popularized by Warren Buffet, currently one of the world’s more famous value investors. Fundamental analysis is a concept that is most often applied to companies, but it can just as easily apply to digital assets such as Bitcoin. Instead of metrics such as the P/E ratio, factors such as the following can be used as part of any cryptocurrency related fundamentals analysis:

If somehow, you’ve only heard of one cryptocurrency, it’s probably Bitcoin. It is the biggest cryptocurrency — it currently has a 40%i share in the total cryptocurrency market cap! It is the oldest cryptocurrency and it still dominates in the market. So, if Bitcoin continues to increase like it did in 2017, then investing in Bitcoin might be a good idea for 2018.
For any significant investment in the space, I’m using the pick-and-shovel strategy to gain crypto exposure in the portfolio. Which “play” am I investing in? After much research and networking and grovelling, I’ve finally found a very good target which is ironically, a mining operation. I’ve been looking for an exchange play but haven’t found one yet…(so if any of you know of a solid one looking for funding, feel free to lob it my way :-))
Always pay attention to Bitcoin. Most altcoins (every cryptocurrency except Bitcoin) are pegged more closely to Bitcoin than Asian currencies were to the USD during the Asian Financial Crisis. If Bitcoin price pump drastically, altcoins price can go down as people try to exit altcoins to ride the BTC profits; inversely, if Bitcoin prices dump drastically, altcoin prices can go down, too, as people exit altcoins to exchange back into fiat. The best times for altcoin growth appear when Bitcoin shows organic growth or decline, or remains stagnant in price.