[파이썬] 미국 지수가 한달 내 5% 이상 빠질 때를 체크

FinanceDataReader 를 활용해 미국 지수가 한 달 내 5% 이상 빠질 때를 체크함.
https://financedata.github.io/posts/finance-data-reader-users-guide.html

from datetime import datetime, timedelta  # 사용법: https://dojang.io/mod/page/view.php?id=2463

# import matplotlib.pyplot as plt
# import pandas as pd
import FinanceDataReader as fdr  # https://financedata.github.io/posts/finance-data-reader-users-guide.html


def load_data(ticker: str, start_date_: str):
    temp = fdr.DataReader(ticker, start_date_)['Close']
    temp.name = ticker
    return temp


def print_data(data):
    max_index = str(data.idxmax())[:10]
    min_index = str(data.idxmin())[:10]
    max_val = data.max()
    min_val = data.min()
    print(data.name)
    print(f'max: {max_index}, {max_val.round(2)}')
    print(f'min: {min_index}, {min_val.round(2)}, {((min_val - max_val) / max_val * 100).round(2)}%')
    print(f'last: {data.iloc[-1].round(2)}, {((data.iloc[-1] - max_val) / max_val * 100).round(2)}%')
    if (data.iloc[-1] - max_val) / max_val <= -0.05:
        print('--------------------')
    print()


# 시작 날짜
today = datetime.now()
start = today - timedelta(days=30)
start_date = start.strftime('%Y-%m-%d')

# Data Load
ixic = load_data('IXIC', start_date)
sp500 = load_data('US500', start_date)
dji = load_data('DJI', start_date)

print_data(ixic)
print_data(sp500)
print_data(dji)

input('Good Luck.')