Stock Price Prediction Project
Stock Price Prediction Project
Build a powerful AI-based Stock Price Prediction model using Python, LSTM, and Time Series techniques.
Project Overview
In this hands-on project, you’ll build a Stock Price Prediction System using LSTM (Deep Learning). The goal is to predict the future stock prices based on historical patterns using Time Series Analysis.
Project Objectives
- Understand Time Series & Stock Data.
- Preprocess and visualize historical stock data.
- Build an LSTM Deep Learning model.
- Train and evaluate predictions.
- Forecast future stock prices.
Prerequisites
- Python 3.x
- Jupyter Notebook
- Libraries: pandas, numpy, matplotlib, scikit-learn, tensorflow, yfinance
pip install pandas numpy matplotlib scikit-learn tensorflow yfinance
Project Workflow
Step-by-Step Plan
- Import libraries
- Download stock data
- Visualize stock trends
- Preprocess data
- Build LSTM model
- Train and evaluate
- Forecast future prices
- Visualize results
Step 1 — Import Libraries
import pandas as pd
import numpy as np
import matplotlib.pyplot as plt
import yfinance as yf
from sklearn.preprocessing import MinMaxScaler
from tensorflow.keras.models import Sequential
from tensorflow.keras.layers import LSTM, Dense, Dropout
Step 2 — Download Stock Data
df = yf.download("AAPL", start="2018-01-01", end="2024-12-31")
df = df[["Close"]]
print(df.head())
Step 3 — Visualize Stock Price
df["Close"].plot(title="AAPL Stock Closing Price", figsize=(10,4))
plt.xlabel("Date")
plt.ylabel("Price")
plt.show()
Step 4 — Preprocess Data
scaler = MinMaxScaler(feature_range=(0,1))
data_scaled = scaler.fit_transform(df)
# Prepare time series sequences
def create_sequences(data, seq_length=60):
X, y = [], []
for i in range(seq_length, len(data)):
X.append(data[i-seq_length:i, 0])
y.append(data[i, 0])
return np.array(X), np.array(y)
X, y = create_sequences(data_scaled, 60)
X = np.reshape(X, (X.shape[0], X.shape[1], 1))
Step 5 — Build LSTM Model
model = Sequential([
LSTM(64, return_sequences=True, input_shape=(60, 1)),
Dropout(0.2),
LSTM(64, return_sequences=False),
Dropout(0.2),
Dense(32, activation="relu"),
Dense(1)
])
model.compile(optimizer="adam", loss="mean_squared_error")
model.summary()
Step 6 — Train the Model
model.fit(X, y, epochs=20, batch_size=32)
Step 7 — Predict Stock Prices
predicted = model.predict(X)
predicted = scaler.inverse_transform(predicted)
real_prices = scaler.inverse_transform(y.reshape(-1, 1))
plt.figure(figsize=(12,5))
plt.plot(real_prices, label="Actual Price")
plt.plot(predicted, label="Predicted Price")
plt.title("Stock Price Prediction")
plt.legend()
plt.show()
Step 8 — Forecast Future Stock Prices
last_60 = data_scaled[-60:]
future_input = np.reshape(last_60, (1, 60, 1))
future_prediction = model.predict(future_input)
future_prediction = scaler.inverse_transform(future_prediction)
print("Next Day Predicted Price:", future_prediction[0][0])
Complete Project Code
import pandas as pd
import numpy as np
import matplotlib.pyplot as plt
import yfinance as yf
from sklearn.preprocessing import MinMaxScaler
from tensorflow.keras.models import Sequential
from tensorflow.keras.layers import LSTM, Dense, Dropout
# Download data
df = yf.download("AAPL", start="2018-01-01", end="2024-12-31")[["Close"]]
# Scale data
scaler = MinMaxScaler(feature_range=(0,1))
data_scaled = scaler.fit_transform(df)
# Create sequences
def create_sequences(data, seq_length=60):
X, y = [], []
for i in range(seq_length, len(data)):
X.append(data[i-seq_length:i, 0])
y.append(data[i, 0])
return np.array(X), np.array(y)
X, y = create_sequences(data_scaled, 60)
X = np.reshape(X, (X.shape[0], X.shape[1], 1))
# Build LSTM Model
model = Sequential([
LSTM(64, return_sequences=True, input_shape=(60,1)),
Dropout(0.2),
LSTM(64, return_sequences=False),
Dropout(0.2),
Dense(32, activation="relu"),
Dense(1)
])
model.compile(optimizer="adam", loss="mean_squared_error")
# Train model
model.fit(X, y, epochs=20, batch_size=32)
# Predict and visualize
predicted = scaler.inverse_transform(model.predict(X))
real_prices = scaler.inverse_transform(y.reshape(-1,1))
plt.plot(real_prices, label="Actual")
plt.plot(predicted, label="Predicted")
plt.legend()
plt.show()
Visual Workflow
Stock Data
- Yahoo Finance
Preprocess
- Scaling
- Sequence formation
LSTM Model
- Time series forecasting
Prediction
- Visualize prices
Forecast
- Next-day price
Bonus — Save Model
model.save("stock_lstm_model.h5")
Real-Life Analogy
Stock Prediction = Studying Market Patterns
Just like an investor studies past patterns to predict the next move, an LSTM model studies historical stock prices to predict future trends.
Real-World Applications
Stock Market
- Trading bots
- Investment strategies
Banking
- Loan & risk analysis
Retail
- Demand prediction
Weather
- Climate forecasting
Energy
- Power consumption
Cybersecurity
- Anomaly detection
Advantages of LSTM for Stock Prediction
- Captures long-term patterns.
- Works on sequential data.
- Solves vanishing gradient issue.
- Excellent for forecasting.
- Used in modern financial AI systems.
Disadvantages
Common Mistakes to Avoid
Best Practices
Quick Tips
- Use stock data of 5+ years.
- Combine LSTM with technical indicators.
- Use Dropout layers.
- Always visualize predictions.
- Use multiple evaluation metrics.
- Retrain model with new data.
Suggested Project Folder Structure
stock_prediction_project/
│
├── data/
│ └── aapl.csv
├── notebooks/
│ └── stock_lstm.ipynb
├── stock_lstm_model.h5
└── README.md
Importance of Stock Price Prediction
Financial AI
- Used in trading bots
Career Boost
- High demand in fintech
Real-World Impact
- Investors, banks, hedge funds
Future-Ready Skill
- Part of AI revolution
Golden Rule
Key Takeaway
The Stock Price Prediction Project demonstrates the power of Deep Learning in financial forecasting. Using LSTM and Time Series Analysis, we can predict the next day's stock prices with surprising accuracy — opening doors for trading bots, investment platforms, and financial AI systems.