diff --git a/src/Transaq.hs b/src/Transaq.hs
index 89ede1a..48f56d0 100644
--- a/src/Transaq.hs
+++ b/src/Transaq.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE BangPatterns          #-}
 {-# LANGUAGE DuplicateRecordFields #-}
 {-# LANGUAGE RecordWildCards       #-}
 
@@ -90,31 +91,31 @@ parseTimestamp = hush . parseOnly parser
   where
     parser = parseWithDate <|> (UTCTime epoch <$> parseTime)
     parseWithDate = do
-      date <- parseDate
+      !date <- parseDate
       skipSpace
-      time <- parseTime
+      !time <- parseTime
       pure $ UTCTime date time
     parseDate = do
-      day <- decimal
+      !day <- decimal
       void $ char '.'
-      month <- decimal
+      !month <- decimal
       void $ char '.'
-      year <- decimal
+      !year <- decimal
       pure $ fromGregorian year month day
 
     parseTime = do
-      hour <- (decimal :: Parser Int)
+      !hour <- (decimal :: Parser Int)
       void $ char ':'
-      minute <- decimal
+      !minute <- decimal
       void $ char ':'
-      second <- decimal
+      !second <- decimal
       msecs <- many' $ do
         void $ char '.'
         (decimal :: Parser Int)
-      let secofday = hour * 3600 + minute * 60 + second
+      let !secofday = hour * 3600 + minute * 60 + second
       case msecs of
-        [ms] -> pure $ fromIntegral secofday + fromIntegral ms / 1000.0
-        _    -> pure $ fromIntegral secofday
+        [!ms] -> pure $ fromIntegral secofday + fromIntegral ms / 1000.0
+        _     -> pure $ fromIntegral secofday
     epoch = fromGregorian 1970 1 1
 
 
@@ -127,21 +128,21 @@ class TransaqResponseC t where
 data CommandConnect =
   CommandConnect
   {
-    login          :: T.Text,
-    password       :: T.Text,
-    host           :: T.Text,
-    port           :: Int,
-    language       :: Language,
-    autopos        :: Bool,
-    micexRegisters :: Bool,
-    milliseconds   :: Bool,
-    utcTime        :: Bool,
+    login          :: !T.Text,
+    password       :: !T.Text,
+    host           :: !T.Text,
+    port           :: !Int,
+    language       :: !Language,
+    autopos        :: !Bool,
+    micexRegisters :: !Bool,
+    milliseconds   :: !Bool,
+    utcTime        :: !Bool,
     proxy          :: (), -- not supported
-    rqDelay        :: Maybe Int,
-    sessionTimeout :: Maybe Int,
-    requestTimeout :: Maybe Int,
-    pushULimits    :: Maybe Int,
-    pushPosEquity  :: Maybe Int
+    rqDelay        :: !(Maybe Int),
+    sessionTimeout :: !(Maybe Int),
+    requestTimeout :: !(Maybe Int),
+    pushULimits    :: !(Maybe Int),
+    pushPosEquity  :: !(Maybe Int)
   } deriving (Show, Eq, Ord)
 
 instance Node CommandConnect where
@@ -177,8 +178,8 @@ instance TransaqCommand CommandDisconnect where
 data SecurityId =
   SecurityId
   {
-    board   :: T.Text
-  , seccode :: T.Text
+    board   :: !T.Text
+  , seccode :: !T.Text
   } deriving (Show, Eq, Ord)
 
 data CommandServerStatus = CommandServerStatus
@@ -197,9 +198,9 @@ instance Node SecurityId where
 data CommandSubscribe =
   CommandSubscribe
   {
-    alltrades  :: [SecurityId]
-  , quotations :: [SecurityId]
-  , quotes     :: [SecurityId]
+    alltrades  :: ![SecurityId]
+  , quotations :: ![SecurityId]
+  , quotes     :: ![SecurityId]
   } deriving (Show, Eq, Ord)
 
 instance TransaqCommand CommandSubscribe where
@@ -213,9 +214,9 @@ instance TransaqCommand CommandSubscribe where
 data CommandUnsubscribe =
   CommandUnsubscribe
   {
-    alltrades  :: [SecurityId]
-  , quotations :: [SecurityId]
-  , quotes     :: [SecurityId]
+    alltrades  :: ![SecurityId]
+  , quotations :: ![SecurityId]
+  , quotes     :: ![SecurityId]
   } deriving (Show, Eq, Ord)
 
 instance TransaqCommand CommandUnsubscribe where
@@ -229,10 +230,10 @@ instance TransaqCommand CommandUnsubscribe where
 data CommandGetHistoryData =
   CommandGetHistoryData
   {
-    security :: SecurityId
-  , periodId :: Int
-  , count    :: Int
-  , reset    :: Bool
+    security :: !SecurityId
+  , periodId :: !Int
+  , count    :: !Int
+  , reset    :: !Bool
   } deriving (Show, Eq, Ord)
 
 instance TransaqCommand CommandGetHistoryData where
@@ -265,17 +266,17 @@ instance Node UnfilledAction where
 data CommandNewOrder =
   CommandNewOrder
   {
-    security  :: SecurityId
-  , client    :: T.Text
-  , unionCode :: T.Text
-  , price     :: Double
-  , quantity  :: Int
-  , buysell   :: TradeDirection
-  , bymarket  :: Bool
-  , brokerRef :: T.Text
-  , unfilled  :: UnfilledAction
-  , usecredit :: Bool
-  , nosplit   :: Bool
+    security  :: !SecurityId
+  , client    :: !T.Text
+  , unionCode :: !T.Text
+  , price     :: !Double
+  , quantity  :: !Int
+  , buysell   :: !TradeDirection
+  , bymarket  :: !Bool
+  , brokerRef :: !T.Text
+  , unfilled  :: !UnfilledAction
+  , usecredit :: !Bool
+  , nosplit   :: !Bool
   } deriving (Show, Eq, Ord)
 
 instance TransaqCommand CommandNewOrder where
@@ -322,8 +323,8 @@ instance TransaqCommand CommandGetSecuritiesInfo where
 data CommandChangePass =
   CommandChangePass
   {
-    cOldPass :: T.Text
-  , cNewPass :: T.Text
+    cOldPass :: !T.Text
+  , cNewPass :: !T.Text
   } deriving (Show, Eq)
 
 instance TransaqCommand CommandChangePass where
@@ -351,13 +352,13 @@ instance TransaqResponseC ResponseResult where
 data Candle =
   Candle
   {
-    cTimestamp    :: UTCTime
-  , cOpen         :: Double
-  , cHigh         :: Double
-  , cLow          :: Double
-  , cClose        :: Double
-  , cVolume       :: Int
-  , cOpenInterest :: Int
+    cTimestamp    :: !UTCTime
+  , cOpen         :: !Double
+  , cHigh         :: !Double
+  , cLow          :: !Double
+  , cClose        :: !Double
+  , cVolume       :: !Int
+  , cOpenInterest :: !Int
   } deriving (Show, Eq, Ord)
 
 data ResponseCandlesStatus =
@@ -384,11 +385,11 @@ childContent tag el = strContent <$> findChild (uname tag) el
 
 instance TransaqResponseC ResponseCandles where
   fromXml root = do
-    periodId <- findAttr (uname "period") root >>= readMaybe
-    status <- findAttr (uname "status") root >>= readMaybe >>= parseStatus
-    board <- T.pack <$> findAttr (uname "board") root
-    seccode <- T.pack <$> findAttr (uname "seccode") root
-    let candles = mapMaybe parseCandle . elChildren $ root
+    !periodId <- findAttr (uname "period") root >>= readMaybe
+    !status <- findAttr (uname "status") root >>= readMaybe >>= parseStatus
+    !board <- T.pack <$> findAttr (uname "board") root
+    !seccode <- T.pack <$> findAttr (uname "seccode") root
+    let !candles = mapMaybe parseCandle . elChildren $ root
     return ResponseCandles
       {
         cPeriodId = periodId
@@ -406,13 +407,13 @@ instance TransaqResponseC ResponseCandles where
           3 -> Just StatusUnavaliable
           _ -> Nothing
       parseCandle element = do
-        timestamp <- findAttr (uname "date") element >>= parseTimestamp . T.pack
-        open <- findAttr (uname "open") element >>= readMaybe
-        high <- findAttr (uname "high") element >>= readMaybe
-        low <- findAttr (uname "low") element >>= readMaybe
-        close <- findAttr (uname "close") element >>= readMaybe
-        volume <- findAttr (uname "volume") element >>= readMaybe
-        let openInterest = fromMaybe 0 $ findAttr (uname "oi") element >>= readMaybe
+        !timestamp <- findAttr (uname "date") element >>= parseTimestamp . T.pack
+        !open <- findAttr (uname "open") element >>= readMaybe
+        !high <- findAttr (uname "high") element >>= readMaybe
+        !low <- findAttr (uname "low") element >>= readMaybe
+        !close <- findAttr (uname "close") element >>= readMaybe
+        !volume <- findAttr (uname "volume") element >>= readMaybe
+        let !openInterest = fromMaybe 0 $ findAttr (uname "oi") element >>= readMaybe
         return Candle
           {
             cTimestamp = timestamp
@@ -433,36 +434,36 @@ data ConnectionState =
 data ResponseServerStatus =
   ResponseServerStatus
   {
-    serverId       :: Maybe Int
-  , state          :: ConnectionState
-  , recover        :: Maybe Bool
-  , serverTimezone :: Maybe T.Text
-  , systemVersion  :: Maybe Int
-  , build          :: Maybe Int
+    serverId       :: !(Maybe Int)
+  , state          :: !ConnectionState
+  , recover        :: !(Maybe Bool)
+  , serverTimezone :: !(Maybe T.Text)
+  , systemVersion  :: !(Maybe Int)
+  , build          :: !(Maybe Int)
   } deriving (Show, Eq, Ord)
 
 instance TransaqResponseC ResponseServerStatus where
   fromXml root = do
-    let serverId = findAttr (uname "id") root >>= readMaybe
-    connectedStr <- findAttr (uname "connected") root
-    state <- case connectedStr of
+    let !serverId = findAttr (uname "id") root >>= readMaybe
+    !connectedStr <- findAttr (uname "connected") root
+    !state <- case connectedStr of
       "true"  -> pure Connected
       "false" -> pure Disconnected
       "error" -> pure $ Error (T.pack $ strContent root)
       _       -> pure Disconnected
-    let recover =
+    let !recover =
           case findAttr (uname "recover") root of
             Just "true" -> pure True
             _           -> pure False
-    let serverTimezone = T.pack <$> findAttr (uname "server_tz") root
-    let systemVersion = findAttr (uname "sys_ver") root >>= readMaybe
-    let build = findAttr (uname "build") root >>= readMaybe
+    let !serverTimezone = T.pack <$> findAttr (uname "server_tz") root
+    let !systemVersion = findAttr (uname "sys_ver") root >>= readMaybe
+    let !build = findAttr (uname "build") root >>= readMaybe
     pure $ ResponseServerStatus {..}
 
 data MarketInfo =
   MarketInfo
-  { marketId   :: Int
-  , marketName :: T.Text
+  { marketId   :: !Int
+  , marketName :: !T.Text
   } deriving (Show, Eq, Ord)
 
 newtype ResponseMarkets = ResponseMarkets [MarketInfo]
@@ -470,26 +471,26 @@ newtype ResponseMarkets = ResponseMarkets [MarketInfo]
 
 instance TransaqResponseC ResponseMarkets where
   fromXml root = do
-    markets <- mapM parseMarketInfo $ elChildren root
+    !markets <- mapM parseMarketInfo $ elChildren root
     pure . ResponseMarkets . catMaybes $ markets
     where
       parseMarketInfo tag =
         if (qName . elName) tag == "market"
         then do
-          marketId <- findAttr (uname "id") tag >>= readMaybe
-          let marketName = T.pack $ strContent tag
+          !marketId <- findAttr (uname "id") tag >>= readMaybe
+          let !marketName = T.pack $ strContent tag
           pure $ Just $ MarketInfo {..}
         else pure Nothing
 
 data ClientData =
   ClientData
   {
-    cClientId :: T.Text
-  , cType     :: T.Text
-  , cCurrency :: T.Text
-  , cMarket   :: T.Text
-  , cUnion    :: T.Text
-  , cForts    :: Maybe T.Text
+    cClientId :: !T.Text
+  , cType     :: !T.Text
+  , cCurrency :: !T.Text
+  , cMarket   :: !T.Text
+  , cUnion    :: !T.Text
+  , cForts    :: !(Maybe T.Text)
   } deriving (Show, Eq, Ord)
 
 newtype ResponseClient = ResponseClient ClientData
@@ -499,21 +500,21 @@ instance TransaqResponseC ResponseClient where
   fromXml root = do
     if (qName . elName) root == "client"
     then do
-      cClientId <- T.pack <$> findAttr (uname "id") root
-      cType <- T.pack <$> childContent "type" root
-      cCurrency <- T.pack <$> childContent "currency" root
-      cMarket <- T.pack <$> childContent "market" root
-      cUnion <- T.pack <$> childContent "union" root
-      let cForts = T.pack <$> childContent "forts_acc" root
+      !cClientId <- T.pack <$> findAttr (uname "id") root
+      !cType <- T.pack <$> childContent "type" root
+      !cCurrency <- T.pack <$> childContent "currency" root
+      !cMarket <- T.pack <$> childContent "market" root
+      !cUnion <- T.pack <$> childContent "union" root
+      let !cForts = T.pack <$> childContent "forts_acc" root
       Just $ ResponseClient $ ClientData {..}
     else Nothing
 
 data CandleKind =
   CandleKind
   {
-    kCandleKindId :: Int
-  , kPeriod       :: Int
-  , kName         :: T.Text
+    kCandleKindId :: !Int
+  , kPeriod       :: !Int
+  , kName         :: !T.Text
   } deriving (Show, Eq, Ord)
 
 newtype ResponseCandleKinds = ResponseCandleKinds [CandleKind]
@@ -522,35 +523,35 @@ newtype ResponseCandleKinds = ResponseCandleKinds [CandleKind]
 
 instance TransaqResponseC ResponseCandleKinds where
   fromXml root = do
-    kinds <- mapM parseCandleKind $ elChildren root
+    !kinds <- mapM parseCandleKind $ elChildren root
     pure . ResponseCandleKinds . catMaybes $ kinds
     where
       parseCandleKind tag =
         if (qName . elName) tag == "kind"
         then do
-          kCandleKindId <- childContent "id" tag >>= readMaybe
-          kPeriod <- childContent "period" tag >>= readMaybe
-          kName <- T.pack <$> childContent "name" tag
+          !kCandleKindId <- childContent "id" tag >>= readMaybe
+          !kPeriod <- childContent "period" tag >>= readMaybe
+          !kName <- T.pack <$> childContent "name" tag
           pure . Just $ CandleKind {..}
         else pure Nothing
 
 data Security =
   Security
   {
-    sSecId      :: Int
-  , sActive     :: Bool
-  , sSeccode    :: T.Text
-  , sInstrClass :: T.Text
-  , sBoard      :: T.Text
-  , sMarket     :: T.Text
-  , sCurrency   :: T.Text
-  , sShortName  :: T.Text
-  , sDecimals   :: Int
-  , sMinStep    :: Double
-  , sLotSize    :: Int
-  , sLotDivider :: Int
-  , sPointCost  :: Double
-  , sSecType    :: T.Text
+    sSecId      :: !Int
+  , sActive     :: !Bool
+  , sSeccode    :: !T.Text
+  , sInstrClass :: !T.Text
+  , sBoard      :: !T.Text
+  , sMarket     :: !T.Text
+  , sCurrency   :: !T.Text
+  , sShortName  :: !T.Text
+  , sDecimals   :: !Int
+  , sMinStep    :: !Double
+  , sLotSize    :: !Int
+  , sLotDivider :: !Int
+  , sPointCost  :: !Double
+  , sSecType    :: !T.Text
   } deriving (Show, Eq, Ord)
 
 newtype ResponseSecurities =
@@ -565,20 +566,20 @@ instance TransaqResponseC ResponseSecurities where
       parseSecurity tag =
         if (qName . elName) tag == "security"
         then do
-          sSecId <- findAttr (uname "secid") tag >>= readMaybe
-          sActive <- findAttr (uname "active") tag >>= parseBool
-          sSeccode <- T.pack <$> childContent "seccode" tag
-          sInstrClass <- T.pack <$> childContent "instrclass" tag
-          sBoard <- T.pack <$> childContent "board" tag
-          sMarket <- T.pack <$> childContent "market" tag
-          let sCurrency = fromMaybe "" $ T.pack <$> childContent "currency" tag
-          sShortName <- T.pack <$> childContent "shortname" tag
-          sDecimals <- childContent "decimals" tag >>= readMaybe
-          sMinStep <- childContent "minstep" tag >>= readMaybe
-          sLotSize <- childContent "lotsize" tag >>= readMaybe
-          sLotDivider <- childContent "lotdivider" tag >>= readMaybe
-          sPointCost <- childContent "point_cost" tag >>= readMaybe
-          sSecType <- T.pack <$> childContent "sectype" tag
+          !sSecId <- findAttr (uname "secid") tag >>= readMaybe
+          !sActive <- findAttr (uname "active") tag >>= parseBool
+          !sSeccode <- T.pack <$> childContent "seccode" tag
+          !sInstrClass <- T.pack <$> childContent "instrclass" tag
+          !sBoard <- T.pack <$> childContent "board" tag
+          !sMarket <- T.pack <$> childContent "market" tag
+          let !sCurrency = fromMaybe "" $ T.pack <$> childContent "currency" tag
+          !sShortName <- T.pack <$> childContent "shortname" tag
+          !sDecimals <- childContent "decimals" tag >>= readMaybe
+          !sMinStep <- childContent "minstep" tag >>= readMaybe
+          !sLotSize <- childContent "lotsize" tag >>= readMaybe
+          !sLotDivider <- childContent "lotdivider" tag >>= readMaybe
+          !sPointCost <- childContent "point_cost" tag >>= readMaybe
+          !sSecType <- T.pack <$> childContent "sectype" tag
           pure . Just $ Security {..}
         else
           pure Nothing
@@ -591,15 +592,15 @@ instance TransaqResponseC ResponseSecurities where
 data ResponseSecInfo =
   ResponseSecInfo
   {
-    secId         :: Int
-  , secName       :: T.Text
-  , secCode       :: T.Text
-  , market        :: Int
-  , pname         :: T.Text
-  , clearingPrice :: Double
-  , minprice      :: Double
-  , maxprice      :: Double
-  , pointCost     :: Double
+    secId         :: !Int
+  , secName       :: !T.Text
+  , secCode       :: !T.Text
+  , market        :: !Int
+  , pname         :: !T.Text
+  , clearingPrice :: !Double
+  , minprice      :: !Double
+  , maxprice      :: !Double
+  , pointCost     :: !Double
   } deriving (Show, Eq, Ord)
 
 
@@ -619,26 +620,26 @@ instance TransaqResponseC ResponseSecInfo where
 data Quotation =
   Quotation
   {
-    qSecId         :: Int
-  , qBoard         :: T.Text
-  , qSeccode       :: T.Text
-  , qOpen          :: Double
-  , qWaprice       :: Double
-  , qBidDepth      :: Int
-  , qBidDepthT     :: Int
-  , qNumBids       :: Int
-  , qOfferDepth    :: Int
-  , qOfferDepthT   :: Int
-  , qBid           :: Double
-  , qOffer         :: Double
-  , qNumOffers     :: Int
-  , qNumTrades     :: Int
-  , qVolToday      :: Int
-  , qOpenPositions :: Int
-  , qLastPrice     :: Double
-  , qQuantity      :: Int
-  , qTimestamp     :: UTCTime
-  , qValToday      :: Double
+    qSecId         :: !Int
+  , qBoard         :: !T.Text
+  , qSeccode       :: !T.Text
+  , qOpen          :: !Double
+  , qWaprice       :: !Double
+  , qBidDepth      :: !Int
+  , qBidDepthT     :: !Int
+  , qNumBids       :: !Int
+  , qOfferDepth    :: !Int
+  , qOfferDepthT   :: !Int
+  , qBid           :: !Double
+  , qOffer         :: !Double
+  , qNumOffers     :: !Int
+  , qNumTrades     :: !Int
+  , qVolToday      :: !Int
+  , qOpenPositions :: !Int
+  , qLastPrice     :: !Double
+  , qQuantity      :: !Int
+  , qTimestamp     :: !UTCTime
+  , qValToday      :: !Double
   } deriving (Show, Eq, Ord)
 
 newtype ResponseQuotations =
@@ -651,26 +652,26 @@ instance TransaqResponseC ResponseQuotations where
     pure . ResponseQuotations . catMaybes $ quotations
     where
       parseQuotation tag = do
-        qSecId <- findAttr (uname "secid") tag >>= readMaybe
-        qBoard <- T.pack <$> childContent "board" tag
-        qSeccode <- T.pack <$> childContent "seccode" tag
-        qOpen <- childContent "open" tag >>= readMaybe
-        qWaprice <- childContent "waprice" tag >>= readMaybe
-        qBidDepth <- childContent "biddepth" tag >>= readMaybe
-        qBidDepthT <- childContent "biddeptht" tag >>= readMaybe
-        qNumBids <- childContent "numbids" tag >>= readMaybe
-        qBid <- childContent "bid" tag >>= readMaybe
-        qOfferDepth <- childContent "offerdepth" tag >>= readMaybe
-        qOfferDepthT <- childContent "offerdeptht" tag >>= readMaybe
-        qNumOffers <- childContent "numoffers" tag >>= readMaybe
-        qOffer <- childContent "offer" tag >>= readMaybe
-        qNumTrades <- childContent "numtrades" tag >>= readMaybe
-        qVolToday <- childContent "voltoday" tag >>= readMaybe
-        qOpenPositions <- childContent "openpositions" tag >>= readMaybe
-        qLastPrice <- childContent "last" tag >>= readMaybe
-        qQuantity <- childContent "quantity" tag >>= readMaybe
-        qTimestamp <- childContent "time" tag >>= (parseTimestamp . T.pack)
-        qValToday <- childContent "valToday" tag >>= readMaybe
+        !qSecId <- findAttr (uname "secid") tag >>= readMaybe
+        !qBoard <- T.pack <$> childContent "board" tag
+        !qSeccode <- T.pack <$> childContent "seccode" tag
+        !qOpen <- childContent "open" tag >>= readMaybe
+        !qWaprice <- childContent "waprice" tag >>= readMaybe
+        !qBidDepth <- childContent "biddepth" tag >>= readMaybe
+        !qBidDepthT <- childContent "biddeptht" tag >>= readMaybe
+        !qNumBids <- childContent "numbids" tag >>= readMaybe
+        !qBid <- childContent "bid" tag >>= readMaybe
+        !qOfferDepth <- childContent "offerdepth" tag >>= readMaybe
+        !qOfferDepthT <- childContent "offerdeptht" tag >>= readMaybe
+        !qNumOffers <- childContent "numoffers" tag >>= readMaybe
+        !qOffer <- childContent "offer" tag >>= readMaybe
+        !qNumTrades <- childContent "numtrades" tag >>= readMaybe
+        !qVolToday <- childContent "voltoday" tag >>= readMaybe
+        !qOpenPositions <- childContent "openpositions" tag >>= readMaybe
+        !qLastPrice <- childContent "last" tag >>= readMaybe
+        !qQuantity <- childContent "quantity" tag >>= readMaybe
+        !qTimestamp <- childContent "time" tag >>= (parseTimestamp . T.pack)
+        !qValToday <- childContent "valToday" tag >>= readMaybe
         pure $ Just Quotation {..}
 
 data TradingPeriod =
@@ -683,16 +684,16 @@ data TradingPeriod =
 data AllTradesTrade =
   AllTradesTrade
   {
-    attSecId        :: Int
-  , attSecCode      :: T.Text
-  , attTradeNo      :: Int64
-  , attTimestamp    :: UTCTime
-  , attBoard        :: T.Text
-  , attPrice        :: Double
-  , attQuantity     :: Int
-  , attBuysell      :: TradeDirection
-  , attOpenInterest :: Int
-  , attPeriod       :: TradingPeriod
+    attSecId        :: !Int
+  , attSecCode      :: !T.Text
+  , attTradeNo      :: !Int64
+  , attTimestamp    :: !UTCTime
+  , attBoard        :: !T.Text
+  , attPrice        :: !Double
+  , attQuantity     :: !Int
+  , attBuysell      :: !TradeDirection
+  , attOpenInterest :: !Int
+  , attPeriod       :: !TradingPeriod
   } deriving (Show, Eq, Ord)
 
 newtype ResponseAllTrades =
@@ -712,16 +713,16 @@ instance TransaqResponseC ResponseAllTrades where
     pure . ResponseAllTrades . catMaybes $ alltrades
     where
       parseAllTrade tag = do
-        attSecId <- findAttr (uname "secid") tag >>= readMaybe
-        attSecCode <- T.pack <$> childContent "seccode" tag
-        attTradeNo <- childContent "tradeno" tag >>= readMaybe
-        attTimestamp <- T.pack <$> childContent "time" tag >>= parseTimestamp
-        attBoard <- T.pack <$> childContent "board" tag
-        attPrice <- childContent "price" tag >>= readMaybe
-        attQuantity <- childContent "quantity" tag >>= readMaybe
-        attBuysell <- T.pack <$> childContent "buysell" tag >>= parseTradeDirection
-        let attOpenInterest = fromMaybe 0 $ childContent "openinterest" tag >>= readMaybe
-        let attPeriod = fromMaybe PeriodUnknown $ childContent "period" tag >>= parseTradingPeriod
+        !attSecId <- findAttr (uname "secid") tag >>= readMaybe
+        !attSecCode <- T.pack <$> childContent "seccode" tag
+        !attTradeNo <- childContent "tradeno" tag >>= readMaybe
+        !attTimestamp <- T.pack <$> childContent "time" tag >>= parseTimestamp
+        !attBoard <- T.pack <$> childContent "board" tag
+        !attPrice <- childContent "price" tag >>= readMaybe
+        !attQuantity <- childContent "quantity" tag >>= readMaybe
+        !attBuysell <- T.pack <$> childContent "buysell" tag >>= parseTradeDirection
+        let !attOpenInterest = fromMaybe 0 $ childContent "openinterest" tag >>= readMaybe
+        let !attPeriod = fromMaybe PeriodUnknown $ childContent "period" tag >>= parseTradingPeriod
         pure . Just $ AllTradesTrade {..}
 
       parseTradingPeriod :: String -> Maybe TradingPeriod
@@ -734,14 +735,14 @@ instance TransaqResponseC ResponseAllTrades where
 data Quote =
   Quote
   {
-    secId   :: Int
-  , board   :: T.Text
-  , secCode :: T.Text
-  , price   :: Double
+    secId   :: !Int
+  , board   :: !T.Text
+  , secCode :: !T.Text
+  , price   :: !Double
   , source  :: T.Text
-  , yield   :: Int
-  , buy     :: Int
-  , sell    :: Int
+  , yield   :: !Int
+  , buy     :: !Int
+  , sell    :: !Int
   } deriving (Show, Eq, Ord)
 
 newtype ResponseQuotes =
@@ -754,14 +755,14 @@ instance TransaqResponseC ResponseQuotes where
     pure . ResponseQuotes . catMaybes $ quotes
     where
       parseQuote tag = do
-        secId <- findAttr (uname "secid") tag >>= readMaybe
-        secCode <- T.pack <$> childContent "seccode" tag
-        board <- T.pack <$> childContent "board" tag
-        price <- childContent "price" tag >>= readMaybe
-        source <- T.pack <$> childContent "source" tag
-        yield <- childContent "yield" tag >>= readMaybe
-        buy <- childContent "buy" tag >>= readMaybe
-        sell <- childContent "sell" tag >>= readMaybe
+        !secId <- findAttr (uname "secid") tag >>= readMaybe
+        !secCode <- T.pack <$> childContent "seccode" tag
+        !board <- T.pack <$> childContent "board" tag
+        !price <- childContent "price" tag >>= readMaybe
+        !source <- T.pack <$> childContent "source" tag
+        !yield <- childContent "yield" tag >>= readMaybe
+        !buy <- childContent "buy" tag >>= readMaybe
+        !sell <- childContent "sell" tag >>= readMaybe
         return . Just $ Quote {..}
 
 data OrderStatus =
@@ -784,21 +785,21 @@ data OrderStatus =
 data OrderNotification =
   OrderNotification
   {
-    oTransactionId :: Int
-  , oOrderNo       :: Int64
-  , oSecId         :: Int
-  , oBoard         :: T.Text
-  , oSecCode       :: T.Text
-  , oClient        :: T.Text
-  , oUnion         :: T.Text
-  , oStatus        :: OrderStatus
-  , oBuysell       :: TradeDirection
-  , oTimestamp     :: UTCTime
-  , oBrokerRef     :: T.Text
-  , oBalance       :: Int
-  , oPrice         :: Double
-  , oQuantity      :: Int
-  , oResult        :: T.Text
+    oTransactionId :: !Int
+  , oOrderNo       :: !Int64
+  , oSecId         :: !Int
+  , oBoard         :: !T.Text
+  , oSecCode       :: !T.Text
+  , oClient        :: !T.Text
+  , oUnion         :: !T.Text
+  , oStatus        :: !OrderStatus
+  , oBuysell       :: !TradeDirection
+  , oTimestamp     :: !UTCTime
+  , oBrokerRef     :: !T.Text
+  , oBalance       :: !Int
+  , oPrice         :: !Double
+  , oQuantity      :: !Int
+  , oResult        :: !T.Text
   } deriving (Show, Eq, Ord)
 
 newtype ResponseOrders =
@@ -811,21 +812,21 @@ instance TransaqResponseC ResponseOrders where
     pure . ResponseOrders . catMaybes $ quotes
     where
       parseOrder tag = do
-        oTransactionId <- findAttr (uname "transactionid") tag >>= readMaybe
-        oOrderNo <- childContent "orderno" tag >>= readMaybe
-        oSecId <- childContent "secid" tag >>= readMaybe
-        oBoard <- T.pack <$> childContent "board" tag
-        oSecCode <- T.pack <$> childContent "seccode" tag
-        oClient <- T.pack <$> childContent "client" tag
-        oUnion <- T.pack <$> childContent "union" tag
-        oStatus <- childContent "status" tag >>= parseStatus
-        oBuysell <- childContent "buysell" tag >>= parseTradeDirection . T.pack
-        oTimestamp <- childContent "time" tag >>= parseTimestamp . T.pack
-        oBrokerRef <- T.pack <$> childContent "brokerref" tag
-        oBalance <- childContent "balance" tag >>= readMaybe
-        oPrice <- childContent "price" tag >>= readMaybe
-        oQuantity <- childContent "quantity" tag >>= readMaybe
-        oResult <- T.pack <$> childContent "result" tag
+        !oTransactionId <- findAttr (uname "transactionid") tag >>= readMaybe
+        !oOrderNo <- childContent "orderno" tag >>= readMaybe
+        !oSecId <- childContent "secid" tag >>= readMaybe
+        !oBoard <- T.pack <$> childContent "board" tag
+        !oSecCode <- T.pack <$> childContent "seccode" tag
+        !oClient <- T.pack <$> childContent "client" tag
+        !oUnion <- T.pack <$> childContent "union" tag
+        !oStatus <- childContent "status" tag >>= parseStatus
+        !oBuysell <- childContent "buysell" tag >>= parseTradeDirection . T.pack
+        !oTimestamp <- childContent "time" tag >>= parseTimestamp . T.pack
+        !oBrokerRef <- T.pack <$> childContent "brokerref" tag
+        !oBalance <- childContent "balance" tag >>= readMaybe
+        !oPrice <- childContent "price" tag >>= readMaybe
+        !oQuantity <- childContent "quantity" tag >>= readMaybe
+        !oResult <- T.pack <$> childContent "result" tag
         return . Just $ OrderNotification {..}
       parseStatus "active"     = Just OrderActive
       parseStatus "cancelled"  = Just OrderCancelled
@@ -846,19 +847,19 @@ instance TransaqResponseC ResponseOrders where
 data TradeNotification =
   TradeNotification
   {
-    tSecId     :: Int
-  , tTradeNo   :: Int64
-  , tOrderNo   :: Int64
-  , tBoard     :: T.Text
-  , tSecCode   :: T.Text
-  , tClient    :: T.Text
-  , tUnion     :: T.Text
-  , tBuysell   :: TradeDirection
-  , tTimestamp :: UTCTime
-  , tValue     :: Double
-  , tComission :: Double
-  , tQuantity  :: Int
-  , tPrice     :: Double
+    tSecId     :: !Int
+  , tTradeNo   :: !Int64
+  , tOrderNo   :: !Int64
+  , tBoard     :: !T.Text
+  , tSecCode   :: !T.Text
+  , tClient    :: !T.Text
+  , tUnion     :: !T.Text
+  , tBuysell   :: !TradeDirection
+  , tTimestamp :: !UTCTime
+  , tValue     :: !Double
+  , tComission :: !Double
+  , tQuantity  :: !Int
+  , tPrice     :: !Double
   } deriving (Show, Eq, Ord)
 
 newtype ResponseTrades =
@@ -871,34 +872,34 @@ instance TransaqResponseC ResponseTrades where
     pure . ResponseTrades . catMaybes $ quotes
     where
       parseTrade tag = do
-        tSecId <- childContent "secid" tag >>= readMaybe
-        tTradeNo <- childContent "tradeno" tag >>= readMaybe
-        tOrderNo <- childContent "orderno" tag >>= readMaybe
-        tBoard <- T.pack <$> childContent "board" tag
-        tSecCode <- T.pack <$> childContent "seccode" tag
-        tClient <- T.pack <$> childContent "client" tag
-        tUnion <- T.pack <$> childContent "union" tag
-        tBuysell <- childContent "buysell" tag >>= parseTradeDirection . T.pack
-        tTimestamp <- childContent "time" tag >>= parseTimestamp . T.pack
-        tValue <- childContent "value" tag >>= readMaybe
-        tComission <- childContent "comission" tag >>= readMaybe
-        tQuantity <- childContent "quantity" tag >>= readMaybe
-        tPrice <- childContent "price" tag >>= readMaybe
+        !tSecId <- childContent "secid" tag >>= readMaybe
+        !tTradeNo <- childContent "tradeno" tag >>= readMaybe
+        !tOrderNo <- childContent "orderno" tag >>= readMaybe
+        !tBoard <- T.pack <$> childContent "board" tag
+        !tSecCode <- T.pack <$> childContent "seccode" tag
+        !tClient <- T.pack <$> childContent "client" tag
+        !tUnion <- T.pack <$> childContent "union" tag
+        !tBuysell <- childContent "buysell" tag >>= parseTradeDirection . T.pack
+        !tTimestamp <- childContent "time" tag >>= parseTimestamp . T.pack
+        !tValue <- childContent "value" tag >>= readMaybe
+        !tComission <- childContent "comission" tag >>= readMaybe
+        !tQuantity <- childContent "quantity" tag >>= readMaybe
+        !tPrice <- childContent "price" tag >>= readMaybe
         pure . Just $ TradeNotification {..}
 
 data Tick =
   Tick
   {
-    secId        :: Int
-  , tradeNo      :: Int64
-  , timestamp    :: UTCTime
-  , price        :: Double
-  , quantity     :: Int
-  , period       :: TradingPeriod
-  , buySell      :: TradeDirection
-  , openInterest :: Int
-  , board        :: T.Text
-  , secCode      :: T.Text
+    secId        :: !Int
+  , tradeNo      :: !Int64
+  , timestamp    :: !UTCTime
+  , price        :: !Double
+  , quantity     :: !Int
+  , period       :: !TradingPeriod
+  , buySell      :: !TradeDirection
+  , openInterest :: !Int
+  , board        :: !T.Text
+  , secCode      :: !T.Text
   } deriving (Show, Eq, Ord)
 
 newtype ResponseTicks =