diff --git a/subjects/ai/backtesting-on-the-sp500/README.md b/subjects/ai/backtesting-sp500/README.md similarity index 100% rename from subjects/ai/backtesting-on-the-sp500/README.md rename to subjects/ai/backtesting-sp500/README.md diff --git a/subjects/ai/backtesting-on-the-sp500/audit/README.md b/subjects/ai/backtesting-sp500/audit/README.md similarity index 100% rename from subjects/ai/backtesting-on-the-sp500/audit/README.md rename to subjects/ai/backtesting-sp500/audit/README.md diff --git a/subjects/ai/backtesting-on-the-sp500/data/fundamentals.csv b/subjects/ai/backtesting-sp500/data/fundamentals.csv similarity index 100% rename from subjects/ai/backtesting-on-the-sp500/data/fundamentals.csv rename to subjects/ai/backtesting-sp500/data/fundamentals.csv diff --git a/subjects/ai/backtesting-on-the-sp500/data/sp500.csv b/subjects/ai/backtesting-sp500/data/sp500.csv similarity index 100% rename from subjects/ai/backtesting-on-the-sp500/data/sp500.csv rename to subjects/ai/backtesting-sp500/data/sp500.csv diff --git a/subjects/ai/backtesting-on-the-sp500/data/stock_prices.csv b/subjects/ai/backtesting-sp500/data/stock_prices.csv similarity index 100% rename from subjects/ai/backtesting-on-the-sp500/data/stock_prices.csv rename to subjects/ai/backtesting-sp500/data/stock_prices.csv diff --git a/subjects/ai/backtesting-on-the-sp500/images/w1_weekend_plot_pnl.png b/subjects/ai/backtesting-sp500/images/w1_weekend_plot_pnl.png similarity index 100% rename from subjects/ai/backtesting-on-the-sp500/images/w1_weekend_plot_pnl.png rename to subjects/ai/backtesting-sp500/images/w1_weekend_plot_pnl.png