diff --git a/README.md b/README.md
index 5e1c154..d10aa1b 100644
--- a/README.md
+++ b/README.md
@@ -38,6 +38,26 @@ stock.intraday.quote({ symbol: '2330' })
   .then(data => console.log(data));
 ```
 
+#### Futures & Options spread contracts
+
+Spread (combination) contract symbols contain a `/` separator (e.g. `MXFA6/C6`).
+The symbol is URL-encoded automatically, so you can pass it as-is. Their quotes
+may carry **negative** prices.
+
+```js
+// List tradable spread contracts
+futopt.intraday.tickers({ type: 'FUTURE', isSpread: true })
+  .then(data => console.log(data));
+
+// Quote a spread contract
+futopt.intraday.quote({ symbol: 'MXFA6/C6' })
+  .then(data => console.log(data));
+```
+
+The futopt quote response includes trial-matching (試搓) fields `lastTrial` and
+`isTrial` (both `null`/`false` outside the trial session). You can also fetch
+trial-matching trade ticks with `futopt.intraday.trades({ symbol, isTrial: true })`.
+
 ### WebSocket API
 
 ```js
@@ -58,6 +78,10 @@ stock.on('message', (message) => {
 });
 ```
 
+The futopt `books` channel may include an extended 6th order-book level as
+`derivedBid` / `derivedAsk` (present only when the exchange sends DERIVED-FLAG),
+and trial-session messages carry an `isTrial` flag.
+
 ## License
 
 [MIT](LICENSE)
diff --git a/src/rest/futopt/historical/candles.ts b/src/rest/futopt/historical/candles.ts
index 663b7ed..eb4d59e 100644
--- a/src/rest/futopt/historical/candles.ts
+++ b/src/rest/futopt/historical/candles.ts
@@ -29,5 +29,5 @@ export interface RestFutOptHistoricalCandlesResponse {
 
 export const candles = (request: RestClientRequest, params: RestFutOptHistoricalCandlesParams) => {
   const { symbol, ...options } = params;
-  return request(`historical/candles/${symbol}`, options) as Promise<RestFutOptHistoricalCandlesResponse>;
+  return request(`historical/candles/${encodeURIComponent(symbol)}`, options) as Promise<RestFutOptHistoricalCandlesResponse>;
 }
diff --git a/src/rest/futopt/historical/daily.ts b/src/rest/futopt/historical/daily.ts
index 84a5cdd..79b25ad 100644
--- a/src/rest/futopt/historical/daily.ts
+++ b/src/rest/futopt/historical/daily.ts
@@ -28,5 +28,5 @@ export interface RestFutOptHistoricalDailyResponse {
 
 export const daily = (request: RestClientRequest, params: RestFutOptHistoricalDailyParams) => {
   const { symbol, ...options } = params;
-  return request(`historical/daily/${symbol}`, options) as Promise<RestFutOptHistoricalDailyResponse>;
+  return request(`historical/daily/${encodeURIComponent(symbol)}`, options) as Promise<RestFutOptHistoricalDailyResponse>;
 }
diff --git a/src/rest/futopt/intraday/candles.ts b/src/rest/futopt/intraday/candles.ts
index c3d2beb..cd797c2 100644
--- a/src/rest/futopt/intraday/candles.ts
+++ b/src/rest/futopt/intraday/candles.ts
@@ -25,5 +25,5 @@ export interface RestFutOptIntradayCandlesResponse {
 
 export const candles = (request: RestClientRequest, params: RestFutOptIntradayCandlesParams) => {
   const { symbol, ...options } = params;
-  return request(`intraday/candles/${symbol}`, options) as Promise<RestFutOptIntradayCandlesResponse>;
+  return request(`intraday/candles/${encodeURIComponent(symbol)}`, options) as Promise<RestFutOptIntradayCandlesResponse>;
 }
diff --git a/src/rest/futopt/intraday/quote.ts b/src/rest/futopt/intraday/quote.ts
index 439ba52..b5ba4bd 100644
--- a/src/rest/futopt/intraday/quote.ts
+++ b/src/rest/futopt/intraday/quote.ts
@@ -9,9 +9,8 @@ export interface RestFutOptIntradayQuoteResponse {
   date: string;
   type: string;
   exchange: string;
+  market: string;
   symbol: string;
-  name: string;
-  previousClose: number;
   openPrice: number;
   openTime: number;
   highPrice: number;
@@ -21,11 +20,11 @@ export interface RestFutOptIntradayQuoteResponse {
   closePrice: number;
   closeTime: number;
   lastPrice: number;
-  lastSize: number;
   avgPrice: number;
   change: number;
   changePercent: number;
   amplitude: number;
+  lastSize: number;
   bids: Array<{
     price: number;
     size: number;
@@ -35,19 +34,50 @@ export interface RestFutOptIntradayQuoteResponse {
     size: number;
   }>;
   total: {
+    tradeValue: number;
     tradeVolume: number;
-    totalBidMatch: number;
-    totalAskMatch: number;
+    tradeVolumeAtBid: number;
+    tradeVolumeAtAsk: number;
+    transaction: number;
+    time: number;
+  };
+  priceLimits: {
+    price: number;
+    bid: number;
+    ask: number;
+    curb: number;
   };
   lastTrade: {
+    bid: number;
+    ask: number;
     price: number;
     size: number;
     time: number;
+    serial: number;
+  };
+  lastTrial: {
+    bid: number;
+    ask: number;
+    price: number;
+    size: number;
+    time: number;
+    serial: number;
+  };
+  tradingHalt: {
+    isHalted: boolean;
+    time: number;
   };
+  isTrial: boolean;
+  isDelayedOpen: boolean;
+  isDelayedClose: boolean;
+  isContinuous: boolean;
+  isOpen: boolean;
+  isClose: boolean;
+  serial: number;
   lastUpdated: number;
 }
 
 export const quote = (request: RestClientRequest, params: RestFutOptIntradayQuoteParams) => {
   const { symbol, ...options } = params;
-  return request(`intraday/quote/${symbol}`, options) as Promise<RestFutOptIntradayQuoteResponse>;
+  return request(`intraday/quote/${encodeURIComponent(symbol)}`, options) as Promise<RestFutOptIntradayQuoteResponse>;
 }
diff --git a/src/rest/futopt/intraday/ticker.ts b/src/rest/futopt/intraday/ticker.ts
index 2bb62ab..e80b336 100644
--- a/src/rest/futopt/intraday/ticker.ts
+++ b/src/rest/futopt/intraday/ticker.ts
@@ -19,5 +19,5 @@ export interface RestFutOptIntradayTickerResponse {
 
 export const ticker = (request: RestClientRequest, params: RestFutOptIntradayTickerParams) => {
   const { symbol, ...options } = params;
-  return request(`intraday/ticker/${symbol}`, options) as Promise<RestFutOptIntradayTickerResponse>;
+  return request(`intraday/ticker/${encodeURIComponent(symbol)}`, options) as Promise<RestFutOptIntradayTickerResponse>;
 }
diff --git a/src/rest/futopt/intraday/tickers.ts b/src/rest/futopt/intraday/tickers.ts
index e0dac53..4465cb0 100644
--- a/src/rest/futopt/intraday/tickers.ts
+++ b/src/rest/futopt/intraday/tickers.ts
@@ -6,6 +6,7 @@ export interface RestFutOptIntradayTickersParams {
   session?: 'REGULAR' | 'AFTERHOURS';
   product?: string;
   contractType?: 'I' | 'R' | 'B' | 'C' | 'S' | 'E';
+  isSpread?: boolean;
 }
 
 export interface RestFutOptIntradayTickersResponse {
@@ -14,6 +15,7 @@ export interface RestFutOptIntradayTickersResponse {
   session: string;
   product?: string;
   contractType?: string;
+  isSpread?: boolean;
   data: Array<{
     type: string;
     contractType: string;
diff --git a/src/rest/futopt/intraday/trades.ts b/src/rest/futopt/intraday/trades.ts
index 0fe208d..d417600 100644
--- a/src/rest/futopt/intraday/trades.ts
+++ b/src/rest/futopt/intraday/trades.ts
@@ -5,6 +5,7 @@ export interface RestFutOptIntradayTradesParams {
   session?: 'afterhours';
   offset?: number;
   limit?: number;
+  isTrial?: boolean;
 }
 
 export interface RestFutOptIntradayTradesResponse {
@@ -21,5 +22,5 @@ export interface RestFutOptIntradayTradesResponse {
 
 export const trades = (request: RestClientRequest, params: RestFutOptIntradayTradesParams) => {
   const { symbol, ...options } = params;
-  return request(`intraday/trades/${symbol}`, options) as Promise<RestFutOptIntradayTradesResponse>;
+  return request(`intraday/trades/${encodeURIComponent(symbol)}`, options) as Promise<RestFutOptIntradayTradesResponse>;
 }
diff --git a/src/rest/futopt/intraday/volumes.ts b/src/rest/futopt/intraday/volumes.ts
index 1dde6ff..b29f95d 100644
--- a/src/rest/futopt/intraday/volumes.ts
+++ b/src/rest/futopt/intraday/volumes.ts
@@ -18,5 +18,5 @@ export interface RestFutOptIntradayVolumesResponse {
 
 export const volumes = (request: RestClientRequest, params: RestFutOptIntradayVolumesParams) => {
   const { symbol, ...options } = params;
-  return request(`intraday/volumes/${symbol}`, options) as Promise<RestFutOptIntradayVolumesResponse>;
+  return request(`intraday/volumes/${encodeURIComponent(symbol)}`, options) as Promise<RestFutOptIntradayVolumesResponse>;
 }
diff --git a/test/rest-client.spec.ts b/test/rest-client.spec.ts
index b69c049..b0d2946 100644
--- a/test/rest-client.spec.ts
+++ b/test/rest-client.spec.ts
@@ -686,6 +686,16 @@ describe('RestClient', () => {
             { headers: { 'Authorization': 'Bearer bearer-token' } },
           );
         });
+
+        it('should request spread tickers with isSpread filter', async () => {
+          const client = new RestClient({ apiKey: 'api-key' });
+          const futopt = client.futopt as RestFutOptClient;
+          await futopt.intraday.tickers({ type: 'FUTURE', isSpread: true });
+          expect(fetch).toBeCalledWith(
+            'https://api.fugle.tw/marketdata/v1.0/futopt/intraday/tickers?isSpread=true&type=FUTURE',
+            { headers: { 'X-API-KEY': 'api-key' } },
+          );
+        });
       });
 
 
@@ -731,6 +741,16 @@ describe('RestClient', () => {
             { headers: { 'Authorization': 'Bearer bearer-token' } },
           );
         });
+
+        it('should url-encode spread contract symbols', async () => {
+          const client = new RestClient({ apiKey: 'api-key' });
+          const futopt = client.futopt as RestFutOptClient;
+          await futopt.intraday.quote({ symbol: 'MXFA6/C6' });
+          expect(fetch).toBeCalledWith(
+            'https://api.fugle.tw/marketdata/v1.0/futopt/intraday/quote/MXFA6%2FC6',
+            { headers: { 'X-API-KEY': 'api-key' } },
+          );
+        });
       });
 
       describe('.candles()', () => {
@@ -775,6 +795,16 @@ describe('RestClient', () => {
             { headers: { 'Authorization': 'Bearer bearer-token' } },
           );
         });
+
+        it('should request trial trades with isTrial filter', async () => {
+          const client = new RestClient({ apiKey: 'api-key' });
+          const futopt = client.futopt as RestFutOptClient;
+          await futopt.intraday.trades({ symbol: 'TXFH4', isTrial: true });
+          expect(fetch).toBeCalledWith(
+            'https://api.fugle.tw/marketdata/v1.0/futopt/intraday/trades/TXFH4?isTrial=true',
+            { headers: { 'X-API-KEY': 'api-key' } },
+          );
+        });
       });
 
       describe('.volumes()', () => {