macd.py

# MACD 

import yfinance as yf

tickers=["AMZN","GOOG","MSFT"]
ohlcv_data = {}

for ticker in tickers:
    temp = yf.download(ticker,period='1mo',interval='15m')
    temp.dropna(how='any',inplace=True)
    ohlcv_data[ticker]=temp

def MACD(DF, a=12, b=26, c=9):
    df=DF.copy()
    df["ma_fast"] = df["Adj Close"].ewm(span=a, min_periods=a).mean()
    df["ma_slow"] = df["Adj Close"].ewm(span=b, min_periods=b).mean()
    df["macd"] = df["ma_fast"] - df["ma_slow"]
    df["signal"] =  df["macd"].ewm(span=c, min_periods=c).mean()
    return df.loc[:,["macd", "signal"]]

for ticker in ohlcv_data:
    ohlcv_data[ticker][["MACD", "SIGNAL"]] = MACD(ohlcv_data[ticker])