diff --git a/exchanges/okx/okx.go b/exchanges/okx/okx.go
index fa79591b..eed309a0 100644
--- a/exchanges/okx/okx.go
+++ b/exchanges/okx/okx.go
@@ -623,7 +623,7 @@ func (ok *Okx) GetOrderList(ctx context.Context, arg *OrderListRequestParams) ([
 	}
 	params := url.Values{}
 	if arg.InstrumentType != "" {
-		params.Set("instType", strings.ToUpper(arg.InstrumentType))
+		params.Set("instType", arg.InstrumentType)
 	}
 	if arg.InstrumentID != "" {
 		params.Set("instId", arg.InstrumentID)
@@ -3060,7 +3060,7 @@ func (ok *Okx) GetInstrumentTypeFromAssetItem(assetType asset.Item) string {
 	case asset.Options:
 		return okxInstTypeOption
 	default:
-		return assetType.String()
+		return strings.ToUpper(assetType.String())
 	}
 }
 
diff --git a/exchanges/okx/okx_websocket.go b/exchanges/okx/okx_websocket.go
index ceee1c24..a458cfdd 100644
--- a/exchanges/okx/okx_websocket.go
+++ b/exchanges/okx/okx_websocket.go
@@ -28,13 +28,21 @@ import (
 // responseStream a channel thought which the data coming from the two websocket connection will go through.
 var responseStream = make(chan stream.Response)
 
-// defaultSubscribedChannels list of channels which are subscribed by default
-var defaultSubscribedChannels = []string{
-	okxChannelTrades,
-	okxChannelOrderBooks,
-	okxChannelCandle5m,
-	okxChannelTickers,
-}
+var (
+	// defaultSubscribedChannels list of channels which are subscribed by default
+	defaultSubscribedChannels = []string{
+		okxChannelTrades,
+		okxChannelOrderBooks,
+		okxChannelCandle5m,
+		okxChannelTickers,
+	}
+	// defaultAuthChannels list of channels which are subscribed when authenticated
+	defaultAuthChannels = []string{
+		okxChannelAccount,
+		okxChannelOrders,
+	}
+)
+
 var (
 	candlestickChannelsMap    = map[string]bool{okxChannelCandle1Y: true, okxChannelCandle6M: true, okxChannelCandle3M: true, okxChannelCandle1M: true, okxChannelCandle1W: true, okxChannelCandle1D: true, okxChannelCandle2D: true, okxChannelCandle3D: true, okxChannelCandle5D: true, okxChannelCandle12H: true, okxChannelCandle6H: true, okxChannelCandle4H: true, okxChannelCandle2H: true, okxChannelCandle1H: true, okxChannelCandle30m: true, okxChannelCandle15m: true, okxChannelCandle5m: true, okxChannelCandle3m: true, okxChannelCandle1m: true, okxChannelCandle1Yutc: true, okxChannelCandle3Mutc: true, okxChannelCandle1Mutc: true, okxChannelCandle1Wutc: true, okxChannelCandle1Dutc: true, okxChannelCandle2Dutc: true, okxChannelCandle3Dutc: true, okxChannelCandle5Dutc: true, okxChannelCandle12Hutc: true, okxChannelCandle6Hutc: true}
 	candlesticksMarkPriceMap  = map[string]bool{okxChannelMarkPriceCandle1Y: true, okxChannelMarkPriceCandle6M: true, okxChannelMarkPriceCandle3M: true, okxChannelMarkPriceCandle1M: true, okxChannelMarkPriceCandle1W: true, okxChannelMarkPriceCandle1D: true, okxChannelMarkPriceCandle2D: true, okxChannelMarkPriceCandle3D: true, okxChannelMarkPriceCandle5D: true, okxChannelMarkPriceCandle12H: true, okxChannelMarkPriceCandle6H: true, okxChannelMarkPriceCandle4H: true, okxChannelMarkPriceCandle2H: true, okxChannelMarkPriceCandle1H: true, okxChannelMarkPriceCandle30m: true, okxChannelMarkPriceCandle15m: true, okxChannelMarkPriceCandle5m: true, okxChannelMarkPriceCandle3m: true, okxChannelMarkPriceCandle1m: true, okxChannelMarkPriceCandle1Yutc: true, okxChannelMarkPriceCandle3Mutc: true, okxChannelMarkPriceCandle1Mutc: true, okxChannelMarkPriceCandle1Wutc: true, okxChannelMarkPriceCandle1Dutc: true, okxChannelMarkPriceCandle2Dutc: true, okxChannelMarkPriceCandle3Dutc: true, okxChannelMarkPriceCandle5Dutc: true, okxChannelMarkPriceCandle12Hutc: true, okxChannelMarkPriceCandle6Hutc: true}
@@ -1232,38 +1240,38 @@ func (ok *Okx) wsProcessTickers(data []byte) error {
 func (ok *Okx) GenerateDefaultSubscriptions() ([]stream.ChannelSubscription, error) {
 	var subscriptions []stream.ChannelSubscription
 	assets := ok.GetAssetTypes(true)
+	subs := make([]string, 0, len(defaultSubscribedChannels)+len(defaultAuthChannels))
+	subs = append(subs, defaultSubscribedChannels...)
 	if ok.Websocket.CanUseAuthenticatedEndpoints() {
-		defaultSubscribedChannels = append(defaultSubscribedChannels,
-			okxChannelAccount,
-			okxChannelOrders,
-		)
+		subs = append(subs, defaultAuthChannels...)
 	}
-	for x := range assets {
-		pairs, err := ok.GetEnabledPairs(assets[x])
-		if err != nil {
-			return nil, err
-		}
-		for y := range defaultSubscribedChannels {
-			if defaultSubscribedChannels[y] == okxChannelCandle5m ||
-				defaultSubscribedChannels[y] == okxChannelTickers ||
-				defaultSubscribedChannels[y] == okxChannelOrders ||
-				defaultSubscribedChannels[y] == okxChannelOrderBooks ||
-				defaultSubscribedChannels[y] == okxChannelOrderBooks5 ||
-				defaultSubscribedChannels[y] == okxChannelOrderBooks50TBT ||
-				defaultSubscribedChannels[y] == okxChannelOrderBooksTBT ||
-				defaultSubscribedChannels[y] == okxChannelTrades {
+	for c := range subs {
+		switch subs[c] {
+		case okxChannelOrders:
+			for x := range assets {
+				subscriptions = append(subscriptions, stream.ChannelSubscription{
+					Channel: subs[c],
+					Asset:   assets[x],
+				})
+			}
+		case okxChannelCandle5m, okxChannelTickers, okxChannelOrderBooks, okxChannelFundingRate, okxChannelOrderBooks5, okxChannelOrderBooks50TBT, okxChannelOrderBooksTBT, okxChannelTrades:
+			for x := range assets {
+				pairs, err := ok.GetEnabledPairs(assets[x])
+				if err != nil {
+					return nil, err
+				}
 				for p := range pairs {
 					subscriptions = append(subscriptions, stream.ChannelSubscription{
-						Channel:  defaultSubscribedChannels[y],
+						Channel:  subs[c],
 						Asset:    assets[x],
 						Currency: pairs[p],
 					})
 				}
-			} else {
-				subscriptions = append(subscriptions, stream.ChannelSubscription{
-					Channel: defaultSubscribedChannels[y],
-				})
 			}
+		default:
+			subscriptions = append(subscriptions, stream.ChannelSubscription{
+				Channel: subs[c],
+			})
 		}
 	}
 	if len(subscriptions) >= 240 {
@@ -1735,7 +1743,7 @@ func (ok *Okx) wsChannelSubscription(operation, channel string, assetType asset.
 	var format currency.PairFormat
 	var err error
 	if tInstrumentType {
-		instrumentType = strings.ToLower(ok.GetInstrumentTypeFromAssetItem(assetType))
+		instrumentType = ok.GetInstrumentTypeFromAssetItem(assetType)
 		if instrumentType != okxInstTypeSpot &&
 			instrumentType != okxInstTypeMargin &&
 			instrumentType != okxInstTypeSwap &&
@@ -1792,7 +1800,7 @@ func (ok *Okx) wsAuthChannelSubscription(operation, channel string, assetType as
 	var err error
 	var format currency.PairFormat
 	if params.InstrumentType {
-		instrumentType = strings.ToUpper(ok.GetInstrumentTypeFromAssetItem(assetType))
+		instrumentType = ok.GetInstrumentTypeFromAssetItem(assetType)
 		if instrumentType != okxInstTypeMargin &&
 			instrumentType != okxInstTypeSwap &&
 			instrumentType != okxInstTypeFutures &&
diff --git a/exchanges/okx/okx_wrapper.go b/exchanges/okx/okx_wrapper.go
index a8ad5461..bdcb411b 100644
--- a/exchanges/okx/okx_wrapper.go
+++ b/exchanges/okx/okx_wrapper.go
@@ -403,7 +403,7 @@ func (ok *Okx) UpdateTickers(ctx context.Context, assetType asset.Item) error {
 		return err
 	}
 	instrumentType := ok.GetInstrumentTypeFromAssetItem(assetType)
-	ticks, err := ok.GetTickers(ctx, strings.ToUpper(instrumentType), "", "")
+	ticks, err := ok.GetTickers(ctx, instrumentType, "", "")
 	if err != nil {
 		return err
 	}
@@ -1260,7 +1260,7 @@ func (ok *Okx) GetOrderHistory(ctx context.Context, req *order.GetOrdersRequest)
 	if !ok.SupportsAsset(req.AssetType) {
 		return nil, fmt.Errorf("%w: %v", asset.ErrNotSupported, req.AssetType)
 	}
-	instrumentType := strings.ToUpper(ok.GetInstrumentTypeFromAssetItem(req.AssetType))
+	instrumentType := ok.GetInstrumentTypeFromAssetItem(req.AssetType)
 	endTime := req.EndTime
 	var resp []order.Detail
 allOrders: