Foolish to place orders before the market opens?
If you are in it for the long run and are not worried about intra day fluctuations and buying within + or - 1% you would be better off going for a market order as this will make sure you buy it on the day.  If you use limit orders you risk missing out on the order if prices gap and start rising in the morning. Another option is to employ stop buy trigger orders (if offered by your broker). So you would have to sum up and decide which type of order would suit your strategy the best. Are you looking to buy the security because you are looking for long term growth and gains, or are you after getting the best price possible to help your short term gains? This would otherwise be a comment, but I wish to share an image. A stock I happened to own, gapped up on the open to $9.20 and slowly worked its way down to $8.19 where it closed up 6% but near its low for the day.  This is an addendum to my comment above, warning about buying a stock on the open when news is coming out. Or more important, to be mindful of that news and the impact it might have on the stock. In this case, when the news came out and the stock had closed at $7.73, one would need to decide if he wished to buy it at any cost, or place a limit order.  I've redacted the name of the company, as this discussion has nothing to do with any particular stock, I'm just offering an example of the effect I warned about, three weeks ago. (Full disclosure, I got out at $8.70 in the first minutes of trading.) Depending on your strategy, it could be though there is also something to be said for what kind of order are you placing: Market, limit or otherwise? Something else to consider is whether or not there is some major news that could cause the stock/ETF to gap at the open.  For example, if a company announces strong earnings then it is possible for the stock to open higher than it did the previous day and so a market order may not to take into account that the stock may jump a bit compared to the previous close.  Limit orders can be useful to put a cap on how much you'll pay for a stock though the key would be to factor this into your strategy of when do you buy. More on a technical note, but the spread on an ETF tends to be worst at market open and near market close. (assuming the ETF constituents are traded on a synchronous basis.) If possible, it's often best to let market makers get up and running before allowing your order to flow into market.
The answer is no.  Online trading is not premature, and hasn't been for a long time. The presence of online complaints has no bearing on the maturity of this means of trading. I'm sure you can find negative reviews of banks, brokers, grocery stories, online retailers, car manufacturers etc. but no one in their right might would consider those industries premature. Sorry, I think your avoidance based on some online reviews sounds a little paranoid. What exactly are you afraid of? Maybe I could provide a more precise answer if we knew your exact concerns. You said the decision will be made by EOD. If you've made the decision prior to the market close, I'd execute on the closing price.  If you are trading stocks with any decent volume, I'd not worry about the liquidity.  If your strategy's profits are so small that your gains are significantly impacted by say, the bid/ask spread (a penny or less for liquid stocks) I'd rethink the approach. You'll find the difference between the market open and prior night close is far greater than the normal bid/ask. To be fair, if you actually read what he says (the headlines are not from him), he NEVER picks a date. He is one of the most successful investors of all time, and has very solid input on general market trends. I've personally utilized his advice to great success in the past, and if you actually look at what he says, it's sound financial advice.  In this particular case, he IS calling a market crash by end of this year or next. I would heed his advice. As stock prices have declined, the net worth of people has come down. Imagine owning a million shares of a stock worth $100/share. This is worth $100,000,000. Now, if the stock is suddenly trading at $50/share then some would say you have lost $50,000,000. The value of the stock is less. The uncertainty is always there as there are differences between one day's close and another day's open possibly. The sale price is likely to be near the last trade is what is being used here. If you place a market order to sell your stock, the price may move between the time the order is placed and when it is filled. There are limit orders that could be used if you want to control the minimum price you get though you give up that the order has to be filled as otherwise people could try to sell shares for millions of dollars that wouldn't work out well. I'd add, this is actually the way any stock opens every day, i.e. the closing price of the prior day is what it is, but the opening price will reflect whatever news there was prior to the day's open. If you watch the business news, you'll often see that some stock has an order imbalance and has not opened yet, at the normal time. So, as Geo stated, those who were sold shares at the IPO price paid $38, but then the stock could open at whatever price was the point where bid and ask balanced.   I snapped a screen capture of this chart on the first day of trading, the daily charts aren't archived where I can find them. This is from Yahoo Finance. You can see the $42 open from those who simply wanted in but couldn't wait, the willingness of sellers to grab their profit right back to what they paid, and then another wave of buying, but then a sell-off. It closed virtually unchanged from the IPO price. The sentiment is because between closing and opening a lot can happen, and between opening and the time your order actually goes through, even more can happen.  An after-hours trade has an extra amount of short-term risk attached; the price of a stock at the opening bell is technically the same as its price as of the closing the previous trading day, but within a tenth of a second, which is forever in a computerized exchange, that price may move drastically one way or the other, based on news and on other markets. The sentiment, therefore, is simple; if you're trading after-hours, you're trading risky. You're not trading based on what the market's actually doing, you're trading based on what you think the market will do in the morning, and there's still more math going on every second in the privately-held supercomputers in rented cubes in the NYSE basement than you could do all night, digesting this news and projecting what it's going to do to the stocks. Now, if you've done your homework and the stock looks like a good long-term buy, with or without any after-hours news, then place the order at 3 in the morning; who cares what the stock's gonna do at the opening bell. You're gonna hold that stock for the next ten years, maybe; what it does in 5 seconds of opening turmoil is relatively minor compared to the monthly trends that you should be worrying about. "What you are proposing is called a ""covered call"" strategy.  It is a perfectly reasonable speculative play on how far the stock will move within a certain amount of time.  If your belief that the stock's volatility is such that it is unlikely to reach the strike price before the maturity is greater than the markets (which it seems it is), then go ahead and sell the call." Because someone smarter than you by 50 IQ points (a quant) will depart their larger position long before you have a chance to see it coming. Your stop losses are useless as the market will open with the issue below your sell price. Your trade even if place at the same mine would settle after theirs. don't piss in the tall grass with the big dogs. If they are wrong or right does not matter you will be haircut or whipsawed. The opening price is derived from new information received. It reflects the current state of the market. Opening Price Deviation (from Investopedia): Investor expectation can be changed by corporate announcements or   other events that make the news. Corporations typically make   news-worthy announcements that may have an effect on the stock price   after the market closes. Large-scale natural disasters or man-made   disasters such as wars or terrorist attacks that take place in the   afterhours may have similar effects on stock prices. When this   happens, some investors may attempt to either buy or sell securities   during the afterhours. Not all orders are executed during after-hours trading. The lack of   liquidity and the resulting wide spreads make market orders   unattractive to traders in after-hours trading. This results in a   large amount of limit or stop orders being placed at a price that is   different from the prior day’s closing price. Consequently, when the   market opens the next day, a substantial disparity in supply and   demand causes the open to veer away from the prior day’s close in the   direction that corresponds to the effect of the announcement, news or   event. The purpose of a market order is to guarantee that your order gets filled. If you try to place a limit order at the bid or ask, by the time you enter your order the price might have moved and you might need to keep amending your limit order in order to buy or sell, and as such you start chasing the market. A market order will guarantee your order gets executed. Also, an important point to consider, is that market orders are often used in combination with other orders such as conditional orders. For example if you have a stop loss (conditional order) set at say 10% below your buy price, you might want to use a market order to make sure your order gets executed if the price drops 10% and your stop loss gets triggered, making sure that you get out of the stock instead of being stuck with a limit order 10% below your buy price whilst the stock keeps falling further. What happened here is pretty obvious: You were trying to sell 2000 shares and apparently didn't mark your order to permit partial execution.  While they had a buyer at 94.66 they didn't want 2000 shares.  Thus your order went unfilled. "If the price used to be 2.50 but by the time you get in an order it's 2.80, you're going to have to pay 2.80. You can't say, ""I want to buy it at the price from an hour ago"". If you could, everybody would wait for the price to go up, then buy at the old price and have an instant guaranteed profit. Well, except that when you tried to sell, I suppose the buyer could say, ""I want to pay the lower price from last July"". So no, you always buy or sell at the current price. If you submit an order after the markets close, your broker should buy the stock for you as soon as possible the next morning. There's no strict queue. There are thousands of brokers out there, they don't take turns. So if your broker has 1000 orders and you are number 1000 on his list, while some other broker has 2 orders and number 1 is someone else wanting to buy the same stock, then even if you got your order in first, the other guy will probably get the first buy. LIFO and FIFO refer to any sort of list or queue, but don't really make sense here. When the market opens a broker has a list of orders he received overnight, which he might think of as a queue. He presumably works his way down the list. But whether he follows a strict and simple first-in-first-out, or does biggest orders first, or does buys for stocks he expects to go up today and sells for stocks he expects to go down today first, or what, I don't know. Does anybody on this forum know, are there rules that say brokers have to go through the overnight orders FIFO, or what is the common practice?" The order book looks fine, if it were a liquid market. However, a bid that matches with an ask will always be met on a first come first serve basis. There's no other way to do it.   Most traders don't like doing that because they want to try to get a lower price. HFT don't have to worry about meeting the ask because they're just going to pass that cost on to the guy on the hook.   By the time the HFT makes the buy they already know the guy wants to buy at 70.00  They did not know that at the time they placed the buy order. If the buy order from the HFT hasn't been cancelled it means they already found someone.  How? By testing the market with sell orders at the same time they were sending buy orders.  They keep a little bit of stock in reserve to perform these tests. I understand you're trying to ask a narrow question, but you're basically asking whether you should time the market.  You can find tons of books saying you shouldn't try it, and tons more confirming that you can.  Both will have data and anecdotes to back them up.  So I'll give you my own opinion. Market timing, especially in a macro sense, is a zero-sum game.  Your first thought should be: I'm smarter than the average person; the average person is an idiot.  However, remember that a whole lot of the money in the market is not controlled by idiots.  You really need to ask yourself if you can compete with people who get paid to spend 12 hours a day trying to beat the market. Stick with a mid-range strategy for now.  Your convictions aren't and shouldn't be strong enough at the moment to do otherwise.  But, if you can't resist, I say go ahead and do what you feel.  Regardless of what you do, your returns over the next 3 years won't be life changing.  In the meantime, learn as much as you can about investing, and keep a journal of your investment activity to keep yourself honest. "Realize this is almost a year old, but I just wanted to comment on something in Dynas' answer above...  ""Whenever you trade always think about what the other guys is thinking. Sometimes we forget their is someone else on the other side of my trade that thinks essentially the exact opposite of me. Its a zero sum game."" From a market maker's perspective, their primary goal is not necessarily to make money by you being wrong, it is to make money on the bid-offer spread and hedging their book (and potentially interalize). That being said, the market maker would likely be quoting one side of the market away from top of the book if they don't want to take exposure in that direction (i.e. their bid will be lower than the highest bid available or their offer higher than the lowest offer available). This isn't really going to change anything if you're trading on an exchange, but important to consider if you can only see the prices your broker/dealer provides to you and they are your counterparty in the trade."