Slippage explained

Years ago all the orders were filled with zero slippage. The initial reaction after NFP was 100 pips. Some data for GBP, NZD, CAD and AUD could easily give 40-50 pips profit almost every time. Currently 20 pips reaction is pretty good. If you have 20 pips slippage you will buy at the high and sell at the low.

Why there is no people TP above their set TP ? Only slippage ?

Slippage works both ways. I have got positive slippage (exit price better than TP limit) very often, but we only complained about negative slippage. This is very important point when you make claims because when we benefited from positive slippage we kept quiet, but screamed out loud when seeing negative slippage. Look through your trades history carefully, I'm sure you have exit prices better than TP and they add up.

Some brokers were fined by regulators for using what they called MT4 virtual dealer plugin to set asymmetric slippage in favor of the broker. We can't prove it on every single trade and every broker. But honestly I have experienced positive slippage myself.

http://forexmagnates.com/nfa-finaliz...quoting-rules/

Slippage exists when someone wants to buy at a given price but there isn't enough sellers selling at that price, so all of it gets bought out at that price and then price moves to the next level of liquidity and buys all of that, etc until the order is filled. That is slippage - price slips while the order is being filled.

What moves price specifically is the insuficient liquidity to supply a market order. Liquidity is supplied by limit orders and a market order is matched with it. Once they're matched, they disappear and the next best limit orders become the new price. A market order is an order executed at the current price. Its time is 'now' and it has no price requirement attached to it. A limit order is a pending order that has a price attached to it. Limit orders will always be executed at that price or better because they are providing the liquidity. A market order will take what it can get right now, what ever the price. If there is an insufficient amount of limit orders for a market order to trade at that particular price, it will then start consuming the limit orders at the next best price. As such, price can slip. A take profit order is a limit order. A stop loss order is a market order that is executed at a predetermined price.

One way to look at it is a shop that sells stuff. The prices set by the shop are limit orders. They want that price or are happy to accept a better price, but they wont budge otherwise. A shopper comes in and decides that they wont budge until the shop offers a better price. Both have limit orders and nothing happens. The current price is between the those two prices. Another shopper comes in and says "I'd like 100 of those now thanks". The shop only has 30 of them and sells all of them to the shopper. The shopper then goes to another shop that sells the same thing but for slightly more expensive price and buys up all the stock they have and moves onto the next shop, etc, until the shopper has all 100 units. That is price slipping - insufficient liquidity to fulfil a market order at the current price.

Note that if you are using a Market Maker, your prices wont slip (if they're reputable). This is because Market makers supply the liquidity that you want to buy / sell at that particular level. Most problems associated with 'slipping' is actually connection issues, etc.

In real trading conditions, SL and TP are usually just instructions to execute an order once a certain price level is reached. The actual fill depends on liquidity and available prices at that moment. Because of that, slippage can occur on both stop loss and take profit orders, for both buy and sell trades. If price moves quickly or there isn’t enough volume at the exact level, the order may be filled at the next available price, which can be better or worse than expected.
This is normal behavior with market execution, especially during fast or volatile conditions.