def days_adv_receipts_y():
'''预收账款周转天数'''
return MetricsMeta('f_days_adv_receipts_y',
expr.Div(
expr.Multi(expr.Get('f_adv_receipts_ave_y'),
expr.Value(360)),
expr.Get('revenue', period='y')),
display='预收账款周转天数')
def days_prepayment_y():
'''预付账款周转天数'''
return MetricsMeta('f_days_prepayment_y',
expr.Div(
expr.Multi(expr.Get('f_prepayment_ave_y'),
expr.Value(360)),
expr.Get('oper_cost', period='y')),
display='预付账款周转天数')
def days_inventory_y():
'''存货周转天数'''
return MetricsMeta('f_days_inventory_y',
expr.Div(
expr.Multi(expr.Get('f_inventory_ave_y'),
expr.Value(360)),
expr.Get('oper_cost', period='y')),
display='存货周转天数')
def days_acct_payable_y():
'''应付账款周转天数'''
return MetricsMeta('f_days_acct_payable_y',
expr.Div(
expr.Multi(expr.Get('f_acct_payable_ave_y'),
expr.Value(360)),
expr.Sub(expr.Get('oper_cost', period='y'),
expr.Get('inventories', period='y'))),
display='应付账款周转天数')
def market_cap(base: int, moat: int):
''' 估算总市值
= 净资产 * (1+滚动roe) ^ (基本因子+护城河因子+成长因子)
'''
return expr.Multi(expr.Get('total_hldr_eqy_exc_min_int'),
expr.Power(expr.Sum(expr.Value(1),
expr.Get('f_roe_ttm')),
expr.Sum(base_factor(base),
moat_factor(moat),
growth_factor())))
def price_selling(price_share: expr.Expr):
'''卖出价'''
return expr.Multi(price_share,
premium_rate())
def price_buying(price_share: expr.Expr):
'''买入价'''
return expr.Multi(price_share,
safety_factor())