【量化投资】策略九（聚宽）

简述

策略九，其实是策略八的一个不加购买指数股票来对冲beta的策略。

效果图

代码

# 导入函数库
import statsmodels.api as sm
from statsmodels import regression
import numpy as np
import pandas as pd
import time
from datetime import date
import scipy.stats as stats# 一键回测说明：
# 百度聚宽-》注册账号-》我的策略里面创建策略-》复制代码到里面
# 右边回测 开始时间：2017-1-1 终止时间：今天 资金：10000000# 初始化函数，设定基准等等
def initialize(context):g.tc = 2  # 调仓频率# 下面是框架固定部分，不需要修改    g.N = 20  # 持仓数目g.t = 0  # 记录运行的天数g.weight_list = [1]  # 因子的权重参数log.set_level('order', 'error')set_option('use_real_price', True)  # 用真实价格交易set_slippage(FixedSlippage(0))  # 将滑点设置为0set_commission(PerTrade(buy_cost=0.0000, sell_cost=0.000, min_cost=0))  # 手续费设置为0# set_benchmark('000905.XSHG')  #中证500为业绩基准set_benchmark('000300.XSHG')  # 沪深300为业绩基准# 选股范围为全市场选股：上证+深证股票# g.stockrange= get_index_stocks('000001.XSHG')+get_index_stocks('399106.XSHE')g.stockrange = get_index_stocks('000300.XSHG')init_cash = context.portfolio.starting_cashg.stoppedStockName = []g.stoppedStockTime = []run_daily(mktopen, time='every_bar')# 操作期货set_subportfolios([SubPortfolioConfig(cash=init_cash, type='stock'),])## 每根日线运行一次
def handle_data(context, data):if g.t == 0:# 设置可行股票池：用set_feasible_stocks函数剔除当前或者计算样本期间停牌的股票g.all_stocks = pickStock(context, g.stockrange)previousStr = str(context.previous_date)# adjustedBeta# adjustedBeta(context)stock_sort = get_all_cleaned_factor_ranked(g.all_stocks, g.weight_list, previousStr)# 调仓rebalance_position(context, stock_sort)g.t = (g.t + 1) % g.tcdef get_all_cleaned_factor_ranked(stocks, weight_list, previousStr):value = my_alpha3(stocks)value = (-value).argsort()[:g.N]return list(map(lambda x: stocks[x], value))'''
factor1
'''def single_alpha1(stock):df = get_price(stock, count=26, fields=['close'])returns = (df[1:] - df[:-2]) / df[:-2]  # 25 linesvalue = [0] * 5for i in range(5):if np.array(returns).tolist()[-1 - i] < 0:value[i] = returns.ix[-20 - i:-1 - i].std() ** 2else:value[i] = df['close'][-1 - i] ** 2return 5 - np.array(value).argmax()def my_alpha1(stocks):value = list(map(single_alpha1, stocks))MAX = max(value)MIN = min(value)value = (np.array(value) - MIN) / (MAX - MIN)return value'''
END factor1
''''''
初步筛选股票
'''# pick stocks
def pickStock(context, stocks):# universe = set_feasible_stocks(stocks)universe = filter_specials(stocks, context)# 过滤上市时间小于60天的股票for stock in universe:days_public = (context.current_dt.date() - get_security_info(stock).start_date).daysif days_public < 60:universe.remove(stock)g.lenth = len(universe)return universe# 过滤停牌的股票
def set_feasible_stocks(stock_list):current_data = get_current_data()stock_list = [stock for stock in stock_list if not current_data[stock].paused]  # 不考虑停盘的股票return stock_list# 将多因子的dataframe进行排序，并且将有空值的行去掉
def rank_stock(all_factor, weight_list):C = len(all_factor.columns)ranked = all_factor.iloc[:, 0].rank() * weight_list[0]if C > 1:for j in range(1, C):ranked = all_factor.iloc[:, j].rank() * weight_list[j] + rankedranked = pd.DataFrame(ranked)ranked.columns = ['rank']one_sort = ranked.sort('rank', ascending=g.ascending)stock_sort = one_sort.index[:g.N]return stock_sort#过滤退市，停牌，STdef filter_specials(stock_list,context):curr_data = get_current_data()stock_list = [stock for stock in stock_list if \(not curr_data[stock].paused)  # 未停牌and (not curr_data[stock].is_st)  # 非STand ('ST' not in curr_data[stock].name)and ('*' not in curr_data[stock].name)and ('退' not in curr_data[stock].name)and (curr_data[stock].low_limit < curr_data[stock].day_open < curr_data[stock].high_limit)                   ]return stock_list'''
END 初步筛选股票
''''''
调仓
'''
def mktopen(context):# 每分钟止损stop(context)def rebalance_position(context, stocks_list):current_holding = context.subportfolios[0].positions.keys()stocks_to_sell = list(set(current_holding) - set(stocks_list))total_value = context.subportfolios[0].total_valuestocks_list = checkNoStopped(stocks_list)# 卖出bulk_orders(stocks_to_sell, 0)# 买入  bulk_orders(stocks_list, total_value / len(stocks_list))if len(g.stoppedStockName) != 0:for i in range(len(g.stoppedStockName)):g.stoppedStockTime[i] -= 1Name = []Time = []for i in range(len(g.stoppedStockName)):if g.stoppedStockTime[i] != 0:Name.append(g.stoppedStockName[i])Time.append(g.stoppedStockTime[i])g.stoppedStockName = Nameg.stoppedStockTime = Time# 检查一定天数内是否被叫停过
def checkNoStopped(stocks_list):temp = set(stocks_list)temp -= (temp & set(g.stoppedStockName))return temp# 止损
def stop(context):# 循环查看持仓的每个股票for stock in context.subportfolios[0].positions:# 如果股票最新价格除以平均成本小于0.8，即亏损超过20%if context.subportfolios[0].positions[stock].price / context.subportfolios[0].positions[stock].avg_cost < 0.95:# 调整stock的持仓为0，即卖出order_target(stock, 0)g.stoppedStockName.append(stock)g.stoppedStockTime.append(30)# 批量买卖股票
def bulk_orders(stocks_list, target_value):for i in stocks_list:order_target_value(i, target_value, pindex=0)'''
END 调仓
''''''
factor1
'''def single_alpha1(stock):df = get_price(stock, count=26, fields=['close'])returns = (df[1:] - df[:-2]) / df[:-2]  # 25 linesvalue = [0] * 5for i in range(5):if np.array(returns).tolist()[-1 - i] < 0:value[i] = returns.ix[-20 - i:-1 - i].std() ** 2else:value[i] = df['close'][-1 - i] ** 2return 5 - np.array(value).argmax()def my_apha1(stocks):value = list(map(single_alpha1, stocks))MAX = max(value)MIN = min(value)value = (np.array(value) - MIN) / (MAX - MIN)return value'''
END factor1
''''''
factor2
'''def single_alpha2(stock):df = get_price(stock, count=8, fields=['open', 'close', 'volume'])volume = np.log(df['volume'].tolist())delta_volume = volume[2:] - volume[:-2]close = df['close']open_ = df['open']rate = (close - open_) / open_rate = np.array(rate)[2:]return delta_volume, ratedef my_alpha2(stocks):values = list(map(single_alpha2, stocks))T_values = list(zip(*values))T_values = list(map(doubleListRank, T_values))T_values = list(map(list, zip(*T_values)))values = np.array(map(Neg_correlation, T_values))return valuesdef Neg_correlation(adlist):return -stats.pearsonr(np.array(adlist[0]), np.array(adlist[1]))[0]def doubleListRank(ddlist):ddlist6 = list(zip(*ddlist))ddlist6 = list(map(rank, ddlist6))return list(map(list, zip(*ddlist6)))def rank(alist):MAX = max(alist)MIN = min(alist)return (np.array(alist) - MIN) / (MAX - MIN)# (-1 * correlation(rank(delta(log(volume), 2)), rank(((close - open)/ open)), 6))
# 6天以来的相关系数() 两个数值分别是
# rank(delta(log(volume), 2))'''
END factor2
''''''
factor3
'''def single_alpha3(stock):df = get_price(stock, count=10, fields=['open', 'volume'])return np.array(df['open']), np.array(df['volume'])def my_alpha3(stocks):values = list(map(single_alpha3, stocks))T_values = list(zip(*values))T_values = list(map(doubleListRank, T_values))T_values = list(map(list, zip(*T_values)))values = np.array(map(Neg_correlation, T_values))return values'''
END factor3
'''

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【量化投资】策略九（聚宽）

简述

效果图

代码

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