text: 
  import pandas as pd
  import yfinance as yf
  import datetime
  
  now = datetime.datetime.now()
  tickers = pd.read_csv('CNDX_holdings.csv', skiprows=2).dropna()
  tickers = tickers['Ticker']
  
  precios = {}
  for i in tickers:
      pr = yf.download(i, start='2018-01-01', end=now, interval='1d')
      pr = pr.drop(['Adj Close'], axis=1)
      pr = pr.reset_index()
      precios[i] = pr
  
  NASDAQ = yf.download('^IXIC', start='2018-01-01', end=now, interval='1d')
  NASDAQ = NASDAQ.drop(['Adj Close'], axis=1)
  NASDAQ = NASDAQ.reset_index()
  
  rf = 0.015