AI量化知识树

什么是股票tick数据,获取tick数据方法和作用

由bqaaxiat创建,最终由bqaaxiat 被浏览 274 用户

金融交易世界中,获取准确及时的tick数据至关重要。抓住交易良机的关键在于掌握实时tick数据。数据更新越快,可发现的赚钱机会就越多。这也是为何在高频数据交易领域,tick数据备受重视。与传统的行情数据相比,tick数据提供了更细致的市场变化记录,为交易者提供了更全面的视角。

首先,让我们简单了解一下什么是Tick数据。

我们日常看到的K线行情数据是基于时间单位的,而tick数据则记录了更细致的维度,即每次价格变化都被记录。举例来说:假设一个股票在一分钟内变动了30次价格,那么在一分钟的行情数据中,你只会看到4个价格:

  1. 开盘价
  2. 收盘价
  3. 最高价
  4. 最低价

因为只有这4项数据,就足够绘制出一个蜡烛图:


O=开盘价,L=最低价,H=最高价,C=收盘价

Tick数据的用途

1、量化交易

在量化交易中,Tick数据可以用于分析市场行情、制定交易策略和执行交易,Tick数据可以用于开发和测试量化交易策略。交易者可以根据Tick数据构建技术指标、价格模型和交易信号,以便自动化执行交易。通过分析历史的Tick数据,交易者可以评估策略的有效性和盈利潜力。

2、价格盯盘工具

Tick数据用于跟踪和监控特定交易品种的价格变动。交易者可以使用Tick数据来实时监测价格的波动和交易量的变化,以便及时做出决策。价格盯盘通常是基于实时的Tick数据进行操作,以帮助交易者捕捉到价格的波动和市场机会。

代码实例

以AllTick的API为例,这家的Tick数据经过封装,可随时方便调用。

他们的官网,可以在浏览器搜索:alltick api

官网地址:https://alltick.co/

import json
import websocket    # pip install websocket-client
 
'''
github:https://github.com/alltick/realtime-forex-crypto-stock-tick-finance-websocket-api
申请token:https://alltick.co/register
官网:https://alltick.co
'''
 
class Feed(object):
 
    def __init__(self):
        self.url = 'wss://quote.tradeswitcher.com/quote-stock-b-ws-api?token=e945d7d9-9e6e-4721-922a-7251a9d311d0-1678159756806'  # 这里输入websocket的url
        self.ws = None
 
    def on_open(self, ws):
        """
        Callback object which is called at opening websocket.
        1 argument:
        @ ws: the WebSocketApp object
        """
        print('A new WebSocketApp is opened!')
 
        # 开始订阅(举个例子)
        sub_param = {
            "cmd_id": 22002, 
            "seq_id": 123,
            "trace":"3baaa938-f92c-4a74-a228-fd49d5e2f8bc-1678419657806",
            "data":{
                "symbol_list":[
                    {
                        "code": "700.HK",
                        "depth_level": 5,
                    },
                    {
                        "code": "UNH.US",
                        "depth_level": 5,
                    },
                    {
                        "code": "600416.SH",
                        "depth_level": 5,
                    }
                ]
            }
        }
        
        #如果希望长时间运行,除了需要发送订阅之外,还需要修改代码,定时发送心跳,避免连接断开,具体查看接口文档
        sub_str = json.dumps(sub_param)
        ws.send(sub_str)
        print("depth quote are subscribed!")
 
    def on_data(self, ws, string, type, continue_flag):
        """
        4 argument.
        The 1st argument is this class object.
        The 2nd argument is utf-8 string which we get from the server.
        The 3rd argument is data type. ABNF.OPCODE_TEXT or ABNF.OPCODE_BINARY will be came.
        The 4th argument is continue flag. If 0, the data continue
        """
 
    def on_message(self, ws, message):
        """
        Callback object which is called when received data.
        2 arguments:
        @ ws: the WebSocketApp object
        @ message: utf-8 data received from the server
        """
        # 对收到的message进行解析
        result = eval(message)
        print(result)
 
    def on_error(self, ws, error):
        """
        Callback object which is called when got an error.
        2 arguments:
        @ ws: the WebSocketApp object
        @ error: exception object
        """
        print(error)
 
    def on_close(self, ws, close_status_code, close_msg):
        """
        Callback object which is called when the connection is closed.
        2 arguments:
        @ ws: the WebSocketApp object
        @ close_status_code
        @ close_msg
        """
        print('The connection is closed!')
 
    def start(self):
        self.ws = websocket.WebSocketApp(
            self.url,
            on_open=self.on_open,
            on_message=self.on_message,
            on_data=self.on_data,
            on_error=self.on_error,
            on_close=self.on_close,
        )
        self.ws.run_forever()
 
 
if __name__ == "__main__":
    feed = Feed()
    feed.start()

\

{link}