Set different trigger and sell price for Trailing Stop Limit
It will depend largely on your broker what type of stop and trailing stop orders they provide. Saying that, I have not come across any brokers yet that offer limit orders with trailing stop orders.  Unlike a standard stop order where you can either make it a market stop order or a limit stop order, usually most brokers have trailing stop orders as market orders only, where you can either set the trailing stop to be a dollar value or percentage from the most recent high. Remember also, that trailing stop orders will be based on the intra-day highs and not the highest closing price. That means that if the share price spikes up during the day your trailing stop will move up, and if the price then spikes down you may be stopped out prematurely, after which the price might rally again. For this reason I try to base my trailing stops on the highest closing price by using standard stop loss orders and moving it up manually after the close of trade if the share price has closed at a new high. This takes a few minutes each evening (depending on how many stocks you have to check and adjust the stops for) but gives you more control. Using this method will also enable you to set limit orders attached to your stop loss triggers, and you won't have to keep your trailing too close to the last high price thus potentially causing you to get stopped out prematurely. Slightly off track but may be handy if you set profit targets, my broker has recently introduced Trailing Take Profit Orders. The way it works is, say you have a profit target of 50%, so you buy at $2 and want to take profits if the price reaches $3, you could set your Trailing Take Profit Trigger at say $3.10 or above and set a Trail by Amount of say $0.10. So if the price after hitting $3.10 falls to $3.00 you will be stopped out and collect your profits. If the price moves up to $3.30 and then falls to $3.20, you will be stopped out at $3.20 and make some extra profits. If the price continues going up the Trailing Take Profit will continue to move up always $0.10 below the highest price reached. I think this would be a very useful order if you were range trading where you could set the Trailing Take Profit trigger near recent resistance so you can get out if prices start reversing at or around the resistance, but continue profiting if the price breaks through the resistance.
This is rather simple if you understand a trailing limit order but to be sure I am going to explain a limit, trailing limit, and trailing LIT order. I am going to use an example assuming that you already own a stock and want to sell it. Limit Order I place an order to sell 100 PG @ 65.00. This order will only be executed if the bid price of PG is at $65.0000 or greater. Trailing Limit Order I place an order to sell 100 CAT @ 85.25 with a trailing 5%. This order will be executed when CAT drops 5% below the highest point it reaches after you place this order. So if you place this order at 85.25 and the stock drops 5% to $80.9875, your order will be executed. However, if the stock jumps to $98, the order will not be executed until the stock falls to $93.10. The sell point will go up with the stock and will always remain at the specified % or $ amount behind the high point. Trailing Limit If Touched Order I place an order to sell 100 INTC @ 24.75 with a trailing 5% if the stock touches $25.00. Essentially, this is the same as the trailing limit except that it doesn't take effect until the stock first gets $25.00.  I think the page they provide to explain this is confusing because I think they are explaining it from the shorting a stock perspective instead of the selling a stock you want to profit from. I could also be wrong in how I understand it. My advice would be to either call their customer support and ask for a better explanation or what I do in my finances, avoid things I don't understand. "Are there any known protections against obvious typos in the stock systems themselves? Do you know of stock exchanges which flags or rejects obviously wrong buy or sell orders (e.g., selling something for 0.1% of its highest buy order, or buying something at 1000 times the current sell order)? Does the stock exchange ""community"" have some sort of ""rules of conduct"" for this? Yes and No. Most Stock Exchanges for certain set of stocks have circuit breakers that are more to restrict panic selling or artificial drop in prices. The kind of controls you are mentioning can't be put on individual trades; as stock exchanges are meant to guarantee / provide neutral ground for the price to be determined by demand / supply. There are quite a few companies that have quickly lost value and become worthless with a day or two. Hence it becomes difficult to determine if something is error by an individual or not. Once an order is submitted to the exchange, it can't afford the to and fro to verify ... as even few seconds make a different in volatile markets. The kind of errors reported are difficult for an individual to make as he would not own the kind of stocks and the stock broker will stop the trade from being placed." Pivots Points are significant levels technical analysts can use to determine directional movement, support and resistance. Pivot Points use the prior period's high, low and close to formulate future support and resistance. In this regard, Pivot Points are predictive or leading indicators. There are at least five different versions of Pivot Points. I will focus on Standard Pivot Points here as they are the simplest. If you are looking to trade off daily charts you would work out your Pivot Points from the prior month's data. For example, Pivot Points for first trading day of February would be based on the high, low and close for January. They remain the same for the entire month of February. New Pivot Points would then be calculated on the first trading day of March using the high, low and close for February. To work out the Standard Pivot Points you use the High, Low and Close from the previous period (i.e. for daily charts it would be from the previous month) in the following formulas: You will now have 5 horizontal lines: P, R1, R2, S1 and S2 which will set the general tone for price action over the next month. A move above the Pivot Point P suggests strength with a target to the first resistance R1. A break above first resistance shows even more strength with a target to the second resistance level R2. The converse is true on the downside. A move below the Pivot Point P suggests weakness with a target to the first support level S1. A break below the first support level shows even more weakness with a target to the second support level S2. The second resistance and support levels (R2 & S2) can also be used to identify potentially overbought and oversold situations. A move above the second resistance level R2 would show strength, but it would also indicate an overbought situation that could give way to a pullback. Similarly, a move below the second support level S2 would show weakness, but would also suggest a short-term oversold condition that could give way to a bounce. This could be used together with a momentum indicator such as RSI or Stochastic to confirm overbought or oversold conditions.  Pivot Points offer a methodology to determine price direction and then set support and resistance levels, however, it is important to confirm Pivot Point signals with other technical analysis indicators, such as candle stick reversal patterns, stochastic and general Support and Resistance Levels in the price action. These pivot points can be handy but I actually haven’t used them for trade setups and entries myself. I prefer to use candle sticks together with stochastic to determine potential turning points and then take out trades based on these. You can then use the Pivot Points Resistance and Support levels to help you estimate profit targets or areas to start becoming cautious and start tightening your stops. Say, for example, you have gone long from a signal you got a few days ago, you are now in profit and the price is now approaching R2 whilst the Stochastic is approaching overbought, you might want to start tightening your stop loss as you might expect some weakness in the price in the near future. If prices continue up you keep increasing your profits, if prices do reverse then you keep the majority of your existing profits. This would become part of your trade management. If you are after finding potential market turning points and take out trades based on these, then I would suggest using candlestick charting reversal patterns for your trade setups. The patterns I like to use most in my trading can be described as either the Hammer or One White Soldier for Bullish reversals and Shooting Star or One Black Crow for Bearish reversals. Below are diagrams of where to place your entries and exits on both Bullish and Bearish reversal patterns. Bullish Reversal Pattern   So after some period of weakness in the price you would look for a bullish day where the price closes above the previous day’s high, you place your buy order here just before market close and place your initial stop just below the low of the day. You would apply this either for an uptrending stock where the price has retracted from or near the trendline or Moving Average, or a ranging stock where price is bouncing off the support line. The trade is reinforced if the Stochastic is in or near the oversold and crossing back upwards, volume on the up day is higher than volume on the down days, and the market as a whole is moving up as well. The benefit with this entry is that you are in early so you capture any bullish move up at the open of the next day, such as gaps. The drawbacks are that you need to be in front of your screen before market close to get your price close to the market close and you may get whipsawed if prices reverse at the open of the next day, thus being stopped out with a small loss. As the price moves up you would move your stop loss to just below the low of each day. Alternative Bullish Reversal Entry  An alternative, entry would be to wait for after market close and then start your analysis (easier to do after market close than whilst the market is open and less emotions involved). Place a stop buy order to buy at the open of next trading day just above the high of the bullish green candle. Your stop is placed exactly the same, just below the low of the green bullish candle. The benefits of this alternative entry include you avoid the trade if the price reverses at the open of next day, thus avoiding a potential small loss (in other words you wait for further confirmation on the next trading day), and you avoid trading during market open hours where your emotions can get the better of you. I prefer to do my trading after market close so prefer this alternative. The drawback with this alternative is that you may miss out on bullish news prior to and at the next open, so miss out on some potential profits if prices do gap up at the open. This may also increase your loss on the trade if the prices gaps up then reverses and hits your stop on the same day. However, if you choose this method, then you will just need to incorporate this into your trading plan as potential slippage. Bearish Reversal Pattern   So after some short period of strength in the price you would look for a bearish day where the price closes below the previous day’s low, you place your sell short order here just before market close and place your initial stop just above the high of the day. You would apply this either for an downtrending stock where the price has retracted from or near the trendline or Moving Average, or a ranging stock where price is bouncing off the resistance line. The trade is reinforced if the Stochastic is in or near the overbought and crossing back downwards, volume on the up day is higher than volume on the up days, and the market as a whole is moving down as well. The benefit with this entry is that you are in early so you capture any bearish move down at the open of the next day, such as gaps. The drawbacks are that you need to be in front of your screen before market close to get your price close to the market close and you may get whipsawed if prices reverse at the open of the next day, thus being stopped out with a small loss. As the price moves down you would move your stop loss to just above the high of each day. Alternative Bearish Reversal Entry   An alternative, entry would be to wait for after market close and then start your analysis (easier to do after market close than whilst the market is open and less emotions involved). Place a stop sell short order to sell at the open of next trading day just below the low of the bearish red candle. Your stop is placed exactly the same, just above the high of the red bearish candle. The benefits of this alternative entry include you avoid the trade if the price reverses at the open of next day, thus avoiding a potential small loss (in other words you wait for further confirmation on the next trading day), and you avoid trading during market open hours where your emotions can get the better of you. I prefer to do my trading after market close so prefer this alternative. The drawback with this alternative is that you may miss out on bearish news prior to and at the next open, so miss out on some potential profits if prices do gap down at the open. This may also increase your loss on the trade if the prices gaps down then reverses and hits your stop on the same day. However, if you choose this method, then you will just need to incorporate this into your trading plan as potential slippage. You could also trade other candle stick patterns is similar ways. And with the long entries you can also use them to get into the market with longer term trend following strategies, you would usually just use a larger stop for longer term trading. To determine the size of your order you would use the price difference between your entry and your stop. You should not be risking more than 1% of your trading capital on any one trade. So if your trading capital is $20,000 your risk per trade should be $200. If you were looking to place your buy at 5.00 and had your initial stop at $4.60, you would divide $200 by $0.40 to get 500 stocks to buy. Using this form of money management you keep your losses down to a maximum of $200 (some trades may be a bit higher due to some slippage which you should allow for in your trading plan), which becomes your R-multiple. Your aim is to have your average win at 3R or higher (3 x your average loss), which will give you a positive expectancy even with a win ratio under 50%. Once you have written down your trading rules you can search stock charts for potential setups. When you find one you can backtest the chart for similar setup over the past few years. For each setup in the past jot down the prices you would have entered at, where you would have set your stop, work out your R, and go day by day, moving your stop as you go, and see where you would have been stopped out. Work out your profit or loss in terms of R for each setup and then add them up. If you get a positive R multiple, then this may be a good stock to trade on this setup. If you get a negative R multiple, then maybe give this stock a miss and look for the next setup. You can setup watch-lists of stocks that perform well for both long setups and short setups, and then trade these stocks when you get a new signal. It can take some time starting off, but once you have got your watch-lists for a particular setup, you just need to keep monitoring those stocks. You can create other watch-lists for other type of setups you have backtested as well. Nothing is guaranteed - candlesticks are not crystal balls nor is any part of technical analysis. Candlestick patterns used correctly and in combination with other western technical indicators can increase the probability of a trade going into the derived direction, but they are not a guarantee - which is why you should always use stop losses with your candlestick or any trading. In saying that, another candlestick pattern that can provide high probability trades is the Doji, or a combination of Dojis in a row at a market extreme. Note that both Engulfing patterns and Dojis work best at price extremes (highs and lows) and in combination with other technical indicators such as an overbought momentum indicator at a market high, or an oversold momentum indicator at a market low. EDIT - An Example Here is a sample trade I placed on the 17th October and am currently 15.6% in profit on. See the chart below as it shows taking the trade on the open of the following day after a bullish engulfing pattern appeared at the bottom of a downtrend on the 16th in combination with the Slow Stochastic crossing over in the oversold region (below 20%). I would consider this a high probability trade and have placed an initial stop loss at 10% below my open price in case the trade went against me. As the price moved up I moved the 10% stop loss up as a trailing stop loss. My profit target is set at 25% or $4.00. "You can choose to place successively lower buy limit orders, but whether they get filled or not is not a given; it depends on whether sellers care to accept your bid. In your example of a 49.98 / 50.01 spread, if you place a buy with limit of 49.99, it won't get filled (if the order reaches the market while still at 49.98 / 50.01) immediately, but will be added to the order book.  By being added to the order book, the markets bid and ask become 49.99 / 50.01.  Your order won't get filled until some seller places a market order or a sell limit order of 49.99 or less.  No guarantee that that will happen, and even if it does, there's nothing to say that your follow-up buy at 49.98 will ever be filled.  In fact, your 49.98 buy order queues up at the ""end of the line"" behind all previously pending 49.98 bids, since your order arrived after those other bids.  Since the initial conditions you supposed had a 49.98 bid, such an order exists (or at least did exist; it might have been cancelled in the intervening moment. Basically, your first buy at 49.99, if it happens, has essentially no influence on whether your second buy at 49.98 will happen.  You can't expect to move the market lower by making a bid that is higher (49.99) than the existing best bid (49.98).  Whatever influence your 49.99 order has is to raise the market's price, not lower it." try to sell if today's google stock goes above 669$ This is Relative/Pegged-to-Primary Order with a Limit Price of $669 and an offset from National Best Offer of $0.00, but it is no different than an Market Order if the market price is $669 to begin with.  do not sell if the stock keeps climbing beyond 669 unless there is a down tick of 20cents is seen This is a Trailing Stop Order with a Trailing Amount of $0.20. It sells if the market price dropped $0.20 from the peak.  The two orders are contradictory. From your comments, I think the following is what you want: Submit Trailing Stop Order when market price is above $669.  Cancel Trailing Stop Order before the end of the day and Submit Relative/Pegged-to-Primary Order to Sell. So far the answer is: observe the general direction of the market, using special tools if needed or you have them available (.e.g. Bollinger bands to help you understand the current trend) at the right time per above, do the roll with stop loss in place (meaning roll at a pre-determined max loss), and also a trailing stop loss if the roll works in your favor, to capture the profits on the roll. This trade was a learning experience.  I sold the option at $20 thinking I'd get back in later in the day with the further out option at a good price, as the market goes back and forth.  The underlying went up and never came back.  I finally gritted my teeth and bought the new option at 23.10 (when it would have cost me about 20.20 before), i.e. a miss/loss of $3 on $20. The underlying continued to rise, from that point (hasn't been back), and now the option price is $29. Of course one needs to make sure the Implied Volatility of the option being left and the option going to is good/fair, and if not, either roll further out in time, nearer in time, our up / down the strike prices, to find the right target option.  After doing that, one might do the strategy above, i.e. any good trade mgmt type strategy:  seek to make a good decision, acknowledge when you were wrong (with stop loss), and act. Or, if you're right, cash in smartly (i.e. trailing stops). Obvious answer but the limit order should be set at the price that you are willing to pay :). More usefully, if you want a decent chance of the order filling in short notice you should place the order one price tick above the current highest buyer (bid price). As long as high frequency trading remains alive I would advise against ever using market orders, these algorithmic trades can occasionally severely distort the price of a security in a fraction of a second. So if your market order happens to fill in during such a distortion you might end up massively overpaying/underselling.