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app.py
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app.py
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"""
This is a financial analysis application that allows users to input a stock symbol and receive various financial
metrics and visualizations for the corresponding company.
"""
# Import necessary libraries
import streamlit as st
from io import BytesIO
from millify import millify
import pandas as pd
import numpy as np
import plotly.graph_objs as go
from io import BytesIO
import sys
from utils import (
config_menu_footer, generate_card, empty_lines, get_delta, color_highlighter
)
from data import (
get_income_statement, get_balance_sheet, get_stock_price, get_company_info,
get_financial_ratios, get_key_metrics, get_cash_flow
)
# Define caching functions for each API call
@st.cache_data(ttl=60*60*24*30) # cache output for 30 days
def company_info(symbol):
return get_company_info(symbol)
@st.cache_data(ttl=60*60*24*30) # cache output for 30 days
def income_statement(symbol):
return get_income_statement(symbol)
@st.cache_data(ttl=60*60*24*30) # cache output for 30 days
def balance_sheet(symbol):
return get_balance_sheet(symbol)
@st.cache_data(ttl=60*60*24*30) # cache output for 30 days
def stock_price(symbol):
return get_stock_price(symbol)
@st.cache_data(ttl=60*60*24*30) # cache output for 30 days
def financial_ratios(symbol):
return get_financial_ratios(symbol)
@st.cache_data(ttl=60*60*24*30) # cache output for 30 days
def key_metrics(symbol):
return get_key_metrics(symbol)
@st.cache_data(ttl=60*60*24*30) # cache output for 30 days
def cash_flow(symbol):
return get_cash_flow(symbol)
# Configure the app page
st.set_page_config(
page_title='Financial Dashboard',
page_icon='📈',
layout="centered",
)
# Define caching function for delta
@st.cache_data(ttl=60*60*24*30) # cache output for 30 days
def delta(df,key):
return get_delta(df,key)
# Configure the menu and footer with the user's information
config_menu_footer()
# Display the app title
st.title("Financial Dashboard 📈")
# Initialize the state of the button as False when the app is first loaded
if 'btn_clicked' not in st.session_state:
st.session_state['btn_clicked'] = False
# Define a callback function for when the "Go" button is clicked
def callback():
# change state value
st.session_state['btn_clicked'] = True
# Create a text input field for the user to enter a stock ticker
symbol_input = st.text_input("Enter a stock ticker").upper()
# Check if the "Go" button has been clicked
if st.button('Go',on_click=callback) or st.session_state['btn_clicked']:
# Check if the user has entered a valid ticker symbol
if not symbol_input:
st.warning('Please input a ticker.')
st.stop()
try:
# Call the API functions to get the necessary data for the dashboard
company_data = get_company_info(symbol_input)
metrics_data = key_metrics(symbol_input)
income_data = income_statement(symbol_input)
performance_data = stock_price(symbol_input)
ratios_data = financial_ratios(symbol_input)
balance_sheet_data = balance_sheet(symbol_input)
cashflow_data = cash_flow(symbol_input)
except Exception:
st.error('Not possible to retrieve data for that ticker. Please check if its valid and try again.')
sys.exit()
# Display dashboard
empty_lines(2)
try:
# Display company info
col1, col2 = st.columns((8.5,1.5))
with col1:
generate_card(company_data['Name'])
with col2:
# display image and make it clickable
image_html = f"<a href='{company_data['Website']}' target='_blank'><img src='{company_data['Image']}' alt='{company_data['Name']}' height='75' width='95'></a>"
st.markdown(image_html, unsafe_allow_html=True)
col3, col4, col5, col6, col7 = st.columns((0.2,1.4,1.4,2,2.6))
with col4:
empty_lines(1)
st.metric(label="Price", value=company_data['Price'], delta=company_data['Price change'])
empty_lines(2)
with col5:
empty_lines(1)
generate_card(company_data['Currency'])
empty_lines(2)
with col6:
empty_lines(1)
generate_card(company_data['Exchange'])
empty_lines(2)
with col7:
empty_lines(1)
generate_card(company_data['Sector'])
empty_lines(2)
# Define columns for key metrics and IS
col8, col9, col10 = st.columns((2,2,3))
# Display key metrics
with col8:
empty_lines(3)
st.metric(label="Market Cap", value=millify(metrics_data['Market Cap'][0], precision=2), delta=delta(metrics_data,'Market Cap'))
st.write("")
st.metric(label="D/E Ratio", value = round(metrics_data['D/E ratio'][0],2), delta=delta(metrics_data,'D/E ratio'))
st.write("")
st.metric(label="ROE", value = str(round(metrics_data['ROE'][0] * 100, 2)) + '%', delta=delta(metrics_data,'ROE'))
with col9:
empty_lines(3)
st.metric(label="Working Capital", value = millify(metrics_data['Working Capital'][0], precision = 2), delta=delta(metrics_data,'Working Capital'))
st.write("")
st.metric(label="P/E Ratio", value = round(metrics_data['P/E Ratio'][0],2), delta=delta(metrics_data,'P/E Ratio'))
st.write("")
# Check if the company pays dividends
if metrics_data['Dividend Yield'][0] == 0:
st.metric(label="Dividends (yield)", value = '0')
else:
st.metric(label="Dividends (yield)", value = str(round(metrics_data['Dividend Yield'][0]* 100, 2)) + '%', delta=delta(metrics_data,'Dividend Yield'))
with col10:
# Transpose the income data so that the years are the columns
income_statement_data = income_data.T
# Display a markdown header for the income statement
st.markdown('**Income Statement**')
# Allow the user to select a year to display
year = st.selectbox('All numbers in thousands', income_statement_data.columns, label_visibility='collapsed')
# Slice the income data to only show the selected year and format numbers with millify function
income_statement_data = income_statement_data.loc[:, [year]]
income_statement_data = income_statement_data.applymap(lambda x: millify(x, precision=2))
# Apply the color_highlighter function to highlight negative numbers
income_statement_data = income_statement_data.style.applymap(color_highlighter)
# Style the table headers with black color
headers = {
'selector': 'th:not(.index_name)',
'props': [('color', 'black')]
}
income_statement_data.set_table_styles([headers])
# Display the income statement table in Streamlit
st.table(income_statement_data)
# Configure the plots bar
config = {
'displaylogo': False,
'modeBarButtonsToRemove': ['zoom2d', 'pan2d', 'select2d', 'lasso2d', 'hoverClosestCartesian', 'hoverCompareCartesian', 'autoScale2d', 'toggleSpikelines', 'resetScale2d', 'zoomIn2d', 'zoomOut2d', 'hoverClosest3d', 'hoverClosestGeo', 'hoverClosestGl2d', 'hoverClosestPie', 'toggleHover', 'resetViews', 'toggleSpikeLines', 'resetViewMapbox', 'resetGeo', 'hoverClosestGeo', 'sendDataToCloud', 'hoverClosestGl']
}
# Display market performance
# Determine the color of the line based on the first and last prices
line_color = 'rgb(60, 179, 113)' if performance_data.iloc[0]['Price'] > performance_data.iloc[-1]['Price'] else 'rgb(255, 87, 48)'
# Create the line chart
fig = go.Figure(
go.Scatter(
x=performance_data.index,
y=performance_data['Price'],
mode='lines',
name='Price',
line=dict(color=line_color)
)
)
# Customize the chart layout
fig.update_layout(
title={
'text': 'Market Performance',
},
dragmode='pan',
xaxis=dict(
fixedrange=True
),
yaxis=dict(
fixedrange=True
)
)
# Render the line chart
st.plotly_chart(fig, config=config, use_container_width=True)
# Display net income
# Create the line chart
fig = go.Figure()
fig.add_trace(
go.Scatter(
x=income_data.index,
y=income_data["= Net Income"],
mode="lines+markers",
line=dict(
color="purple"),
marker=dict(
size=5
)
)
)
# Customize the chart layout
fig.update_layout(
title="Net Income",
dragmode='pan',
xaxis=dict(
tickmode='array',
tickvals=income_data.index,
fixedrange=True
),
yaxis=dict(
fixedrange=True
),
)
# Display the graph
st.plotly_chart(fig, config=config, use_container_width=True)
# Display profitability margins
# Create an horizontal bar chart of profitability margins
fig = go.Figure()
fig.add_trace(go.Bar(
y=ratios_data.index,
x=ratios_data['Gross Profit Margin'],
name='Gross Profit Margin',
marker=dict(color='rgba(60, 179, 113, 0.85)'),
orientation='h',
))
fig.add_trace(go.Bar(
y=ratios_data.index,
x=ratios_data['Operating Profit Margin'],
name='EBIT Margin',
marker=dict(color='rgba(30, 144, 255, 0.85)'),
orientation='h',
))
fig.add_trace(go.Bar(
y=ratios_data.index,
x=ratios_data['Net Profit Margin'],
name='Net Profit Margin',
marker=dict(color='rgba(173, 216, 230, 0.85)'),
orientation='h',
))
# Update layout
fig.update_layout(
title='Profitability Margins',
bargap=0.1,
dragmode='pan',
xaxis=dict(
fixedrange=True,
tickformat='.0%'
),
yaxis=dict(
fixedrange=True
)
)
# Display the plot
st.plotly_chart(fig, config=config, use_container_width=True)
#Display balance sheet
# Create a vertical bar chart of Assets and Liabilities
fig = go.Figure()
fig.add_trace(go.Bar(
x=balance_sheet_data.index,
y=balance_sheet_data['Assets'],
name='Assets',
marker=dict(color='rgba(60, 179, 113, 0.85)'),
width=0.3,
))
fig.add_trace(go.Bar(
x=balance_sheet_data.index,
y=balance_sheet_data['Liabilities'],
name='Liabilities',
marker=dict(color='rgba(255, 99, 71, 0.85)'),
width=0.3,
))
# Add a line for assets
fig.add_trace(go.Scatter(
x=balance_sheet_data.index,
y=balance_sheet_data['Equity'],
mode='lines+markers',
name='Equity',
line=dict(color='rgba(173, 216, 230, 1)', width=2),
marker=dict(symbol='circle', size=8, color='rgba(173, 216, 230, 1)', line=dict(width=1, color='rgba(173, 216, 230, 1)'))
))
# Update layout
fig.update_layout(
title='Balance Sheet',
bargap=0.4,
dragmode='pan',
xaxis=dict(
fixedrange=True
),
yaxis=dict(
fixedrange=True,
)
)
# Display the plot
st.plotly_chart(fig, config=config, use_container_width=True)
# Display ROE and ROA
# Create the line chart
fig = go.Figure()
fig.add_trace(go.Scatter(
x=ratios_data.index,
y=ratios_data['Return on Equity'],
name='ROE',
line=dict(color='rgba(60, 179, 113, 0.85)'),
))
fig.add_trace(go.Scatter(
x=ratios_data.index,
y=ratios_data['Return on Assets'],
name='ROA',
line=dict(color='rgba(30, 144, 255, 0.85)'),
))
# Update layout
fig.update_layout(
title='ROE and ROA',
dragmode='pan',
xaxis=dict(
fixedrange=True
),
yaxis=dict(
fixedrange=True,
tickformat='.0%'
)
)
# Display the plot in Streamlit
st.plotly_chart(fig, config=config, use_container_width=True)
# Display cash flows
# Create a vertical bar chart of Cash flows
fig = go.Figure()
fig.add_trace(go.Bar(
x=cashflow_data.index,
y=cashflow_data['Cash flows from operating activities'],
name='Cash flows from operating activities',
marker=dict(color='rgba(60, 179, 113, 0.85)'),
width=0.3,
))
fig.add_trace(go.Bar(
x=cashflow_data.index,
y=cashflow_data['Cash flows from investing activities'],
name='Cash flows from investing activities',
marker=dict(color='rgba(30, 144, 255, 0.85)'),
width=0.3,
))
fig.add_trace(go.Bar(
x=cashflow_data.index,
y=cashflow_data['Cash flows from financing activities'],
name='Cash flows from financing activities',
marker=dict(color='rgba(173, 216, 230, 0.85)'),
width=0.3,
))
# Add a line for Free cash flow
fig.add_trace(go.Scatter(
x=cashflow_data.index,
y=cashflow_data['Free cash flow'],
mode='lines+markers',
name='Free cash flow',
line=dict(color='rgba(255, 140, 0, 1)', width=2),
marker=dict(symbol='circle', size=5, color='rgba(255, 140, 0, 1)', line=dict(width=0.8, color='rgba(255, 140, 0, 1)'))
))
# Update layout
fig.update_layout(
title='Cash flows',
bargap=0.1,
xaxis=dict(
fixedrange=True,
),
yaxis=dict(
fixedrange=True,
)
)
# Display the plot
st.plotly_chart(fig, config=config, use_container_width=True)
#Display financial ratios table
empty_lines(1)
st.markdown('**Financial Ratios**')
# Rename keys and format values as needed
ratios_table = ratios_data.rename(columns={
'Days of Sales Outstanding': 'Days of Sales Outstanding (days)',
'Days of Inventory Outstanding': 'Days of Inventory Outstanding (days)',
'Operating Cycle': 'Operating Cycle (days)',
'Days of Payables Outstanding': 'Days of Payables Outstanding (days)',
'Cash Conversion Cycle': 'Cash Conversion Cycle (days)',
'Gross Profit Margin': 'Gross Profit Margin (%)',
'Operating Profit Margin': 'Operating Profit Margin (%)',
'Pretax Profit Margin': 'Pretax Profit Margin (%)',
'Net Profit Margin': 'Net Profit Margin (%)',
'Effective Tax Rate': 'Effective Tax Rate (%)',
'Return on Assets': 'Return on Assets (%)',
'Return on Equity': 'Return on Equity (%)',
'Return on Capital Employed': 'Return on Capital Employed (%)',
'EBIT per Revenue': 'EBIT per Revenue (%)',
'Debt Ratio': 'Debt Ratio (%)',
'Long-term Debt to Capitalization': 'Long-term Debt to Capitalization (%)',
'Total Debt to Capitalization': 'Total Debt to Capitalization (%)',
'Payout Ratio': 'Payout Ratio (%)',
'Operating Cash Flow Sales Ratio': 'Operating Cash Flow Sales Ratio (%)',
'Dividend Yield': 'Dividend Yield (%)',
})
# Multiply values in columns with "%" symbol by 100
for col in ratios_table.columns:
if "%" in col:
ratios_table[col] = ratios_table[col] * 100
ratios_table = round(ratios_table.T,2)
ratios_table = ratios_table.sort_index(axis=1, ascending=True)
# Display ratios table
st.dataframe(ratios_table, width=800, height=400)
except Exception as e:
st.error('Not possible to develop dashboard. Please try again.')
sys.exit()
#Add download button
empty_lines(3)
try:
# Create dataframes for each financial statement
company_data = pd.DataFrame.from_dict(company_data, orient='index')
company_data = (
company_data.reset_index()
.rename(columns={'index':'Key', 0:'Value'})
.set_index('Key')
)
metrics_data = metrics_data.round(2).T
income_data = income_data.round(2)
ratios_data = ratios_data.round(2).T
balance_sheet_data = balance_sheet_data.round(2).T
cashflow_data = cashflow_data.T
# Clean up income statement column names and transpose dataframe
income_data.columns = income_data.columns.str.replace(r'[\/\(\)\-\+=]\s?', '', regex=True)
income_data = income_data.T
# Combine all dataframes into a dictionary
dfs = {
'Stock': company_data,
'Market Performance': performance_data,
'Income Statement': income_data,
'Balance Sheet': balance_sheet_data,
'Cash flow': cashflow_data,
'Key Metrics': metrics_data,
'Financial Ratios': ratios_table
}
# Write the dataframes to an Excel file, with special formatting for the Market Performance sheet
output = BytesIO()
writer = pd.ExcelWriter(output, engine='xlsxwriter')
for sheet_name, df in dfs.items():
if sheet_name == 'Market Performance':
# Rename index column and format date column
df.index.name = 'Date'
df = df.reset_index()
df['Date'] = pd.to_datetime(df['Date']).dt.strftime('%Y-%m-%d')
# Write dataframe to Excel sheet without index column
df.to_excel(writer, sheet_name=sheet_name, index=False)
else:
# Write dataframe to Excel sheet with index column
df.to_excel(writer, sheet_name=sheet_name, index=True)
# Autofit columns in Excel sheet
writer.sheets[sheet_name].autofit()
# Close the Excel writer object
writer.close()
# Create a download button for the Excel file
data = output.getvalue()
st.download_button(
label='Download ' + symbol_input + ' Financial Data (.xlsx)',
data=data,
file_name=symbol_input + '_financial_data.xlsx',
mime='application/octet-stream'
)
except Exception:
st.info('Data not available for download')