Symbol Properties

Market information identifiers, used with MarketInfo() function. It can be any of the following values:

A zero value of MODE_STOPLEVEL means either absence of any restrictions on the minimal distance for Stop Loss/Take Profit or the fact that a trade server utilizes some external mechanisms for dynamic level control, which cannot be translated in the client terminal. In the second case, GetLastError() can return error 130, because MODE_STOPLEVEL is actually “floating” here. | | MODE_LOTSIZE | 15 | Lot size in the base currency | | MODE_TICKVALUE | 16 | Tick value in the deposit currency | | MODE_TICKSIZE | 17 | Tick size in points | | MODE_SWAPLONG | 18 | Swap of the buy order | | MODE_SWAPSHORT | 19 | Swap of the sell order | | MODE_STARTING | 20 | Market starting date (usually used for futures) | | MODE_EXPIRATION | 21 | Market expiration date (usually used for futures) | | MODE_TRADEALLOWED | 22 | Trade is allowed for the symbol | | MODE_MINLOT | 23 | Minimum permitted amount of a lot | | MODE_LOTSTEP | 24 | Step for changing lots | | MODE_MAXLOT | 25 | Maximum permitted amount of a lot | | MODE_SWAPTYPE | 26 | Swap calculation method. 0 - in points; 1 - in the symbol base currency; 2 - by interest; 3 - in the margin currency | | MODE_PROFITCALCMODE | 27 | Profit calculation mode. 0 - Forex; 1 - CFD; 2 - Futures | | MODE_MARGINCALCMODE | 28 | Margin calculation mode. 0 - Forex; 1 - CFD; 2 - Futures; 3 - CFD for indices | | MODE_MARGININIT | 29 | Initial margin requirements for 1 lot | | MODE_MARGINMAINTENANCE | 30 | Margin to maintain open orders calculated for 1 lot | | MODE_MARGINHEDGED | 31 | Hedged margin calculated for 1 lot | | MODE_MARGINREQUIRED | 32 | Free margin required to open 1 lot for buying | | MODE_FREEZELEVEL | 33 | Order freeze level in points. If the execution price lies within the range defined by the freeze level, the order cannot be modified, cancelled or closed | | MODE_CLOSEBY_ALLOWED | 34 | Allowed using OrderCloseBy() to close opposite orders on a specified symbol |

Example:

//+------------------------------------------------------------------+
//| The script prints information on symbol                          |
//+------------------------------------------------------------------+
void OnStart()
  {
   Print("Symbol=",Symbol());
   Print("Low day price=",MarketInfo(Symbol(),MODE_LOW));
   Print("High day price=",MarketInfo(Symbol(),MODE_HIGH));
   Print("The last incoming tick time=",(MarketInfo(Symbol(),MODE_TIME)));
   Print("Last incoming bid price=",MarketInfo(Symbol(),MODE_BID));
   Print("Last incoming ask price=",MarketInfo(Symbol(),MODE_ASK));
   Print("Point size in the quote currency=",MarketInfo(Symbol(),MODE_POINT));
   Print("Digits after decimal point=",MarketInfo(Symbol(),MODE_DIGITS));
   Print("Spread value in points=",MarketInfo(Symbol(),MODE_SPREAD));
   Print("Stop level in points=",MarketInfo(Symbol(),MODE_STOPLEVEL));
   Print("Lot size in the base currency=",MarketInfo(Symbol(),MODE_LOTSIZE));
   Print("Tick value in the deposit currency=",MarketInfo(Symbol(),MODE_TICKVALUE));
   Print("Tick size in points=",MarketInfo(Symbol(),MODE_TICKSIZE));
   Print("Swap of the buy order=",MarketInfo(Symbol(),MODE_SWAPLONG));
   Print("Swap of the sell order=",MarketInfo(Symbol(),MODE_SWAPSHORT));
   Print("Market starting date (for futures)=",MarketInfo(Symbol(),MODE_STARTING));
   Print("Market expiration date (for futures)=",MarketInfo(Symbol(),MODE_EXPIRATION));
   Print("Trade is allowed for the symbol=",MarketInfo(Symbol(),MODE_TRADEALLOWED));
   Print("Minimum permitted amount of a lot=",MarketInfo(Symbol(),MODE_MINLOT));
   Print("Step for changing lots=",MarketInfo(Symbol(),MODE_LOTSTEP));
   Print("Maximum permitted amount of a lot=",MarketInfo(Symbol(),MODE_MAXLOT));
   Print("Swap calculation method=",MarketInfo(Symbol(),MODE_SWAPTYPE));
   Print("Profit calculation mode=",MarketInfo(Symbol(),MODE_PROFITCALCMODE));
   Print("Margin calculation mode=",MarketInfo(Symbol(),MODE_MARGINCALCMODE));
   Print("Initial margin requirements for 1 lot=",MarketInfo(Symbol(),MODE_MARGININIT));
   Print("Margin to maintain open orders calculated for 1 lot=",MarketInfo(Symbol(),MODE_MARGINMAINTENANCE));
   Print("Hedged margin calculated for 1 lot=",MarketInfo(Symbol(),MODE_MARGINHEDGED));
   Print("Free margin required to open 1 lot for buying=",MarketInfo(Symbol(),MODE_MARGINREQUIRED));
   Print("Order freeze level in points=",MarketInfo(Symbol(),MODE_FREEZELEVEL));
  }

To obtain the current market information there are several functions: SymbolInfoInteger(), SymbolInfoDouble() and SymbolInfoString(). The first parameter is the symbol name, the values of the second function parameter can be one of the identifiers of ENUM_SYMBOL_INFO_INTEGER, ENUM_SYMBOL_INFO_DOUBLE and ENUM_SYMBOL_INFO_STRING.

For function SymbolInfoInteger():

ENUM_SYMBOL_INFO_INTEGER

Some symbols can be hidden in Market Watch, but still they are considered as selected. | bool | | SYMBOL_VISIBLE | Symbol is visible in Market Watch.

Some symbols (mostly, these are cross rates required for calculation of margin requirements or profits in deposit currency) are selected automatically, but generally are not visible in Market Watch. To be displayed such symbols have to be explicitly selected. | bool | | SYMBOL_SESSION_DEALS | Not supported | long | | SYMBOL_SESSION_BUY_ORDERS | Not supported | long | | SYMBOL_SESSION_SELL_ORDERS | Not supported | long | | SYMBOL_VOLUME | Not supported | long | | SYMBOL_VOLUMEHIGH | Not supported | long | | SYMBOL_VOLUMELOW | Not supported | long | | SYMBOL_TIME | Time of the last quote | datetime | | SYMBOL_DIGITS | Digits after a decimal point | int | | SYMBOL_SPREAD_FLOAT | Indication of a floating spread | bool | | SYMBOL_SPREAD | Spread value in points | int | | SYMBOL_TRADE_CALC_MODE | Contract price calculation mode | int | | SYMBOL_TRADE_MODE | Order execution type | ENUM_SYMBOL_TRADE_MODE | | SYMBOL_START_TIME | Date of the symbol trade beginning (usually used for futures) | datetime | | SYMBOL_EXPIRATION_TIME | Date of the symbol trade end (usually used for futures) | datetime | | SYMBOL_TRADE_STOPS_LEVEL | Minimal indention in points from the current close price to place Stop orders | int | | SYMBOL_TRADE_FREEZE_LEVEL | Distance to freeze trade operations in points | int | | SYMBOL_TRADE_EXEMODE | Deal execution mode | ENUM_SYMBOL_TRADE_EXECUTION | | SYMBOL_SWAP_MODE | Swap calculation model | int | | SYMBOL_SWAP_ROLLOVER3DAYS | Day of week to charge 3 days swap rollover | ENUM_DAY_OF_WEEK | | SYMBOL_EXPIRATION_MODE | Not supported | int | | SYMBOL_FILLING_MODE | Not supported | int | | SYMBOL_ORDER_MODE | Not supported | int |

For function SymbolInfoDouble():

ENUM_SYMBOL_INFO_DOUBLE

For function SymbolInfoString():

ENUM_SYMBOL_INFO_STRING

There are several symbol trading modes. Information about trading modes of a certain symbol is reflected in the values of enumeration ENUM_SYMBOL_TRADE_MODE.

ENUM_SYMBOL_TRADE_MODE

Possible deal execution modes for a certain symbol are defined in enumeration ENUM_SYMBOL_TRADE_EXECUTION.

ENUM_SYMBOL_TRADE_EXECUTION

*These values are not used in MQL4 (added for compatibility with MQL5).

Values of the ENUM_DAY_OF_WEEK enumeration are used for specifying days of week.

ENUM_DAY_OF_WEEK