·Coding

A Macro Event Calendar for Research and Backtests

Download a historical economic calendar covering decades of U.S. macroeconomic release dates, including FOMC, CPI, Non-Farm Payrolls, GDP, Retail Sales, and more. Export clean CSV files for quantitative research, event studies, and trading strategy backtests.

·Coding

How to Build a Database of Sector and Industry Benchmarks using Norgate Data

A complete Python procedure for constructing an S&P 1500 GICS database from Norgate Data. From Individual Stocks to Entire Industries Most quantitative equity research starts with individual securities. We download historical stock prices, construct a survivorship-bias-free universe, and test signals across hundreds or thousands of companies. However, many portfolio managers are more interested in systematic […]

Tags: norgate
DF_Intraday_Databases
·Coding

How to Detect and Fix Problems in Intraday Market Data

Reliable intraday market data is one of the most overlooked requirements in quantitative research. In this follow-up article, we introduce concretum_tests, a Python tool designed to detect and handle some of the most common structural problems found in 1-minute OHLCV datasets, including phantom highs/lows, early-close leakage, stale bars, and missing bars.

We also explain which issues can be corrected cleanly, which require probabilistic reconstruction, and which should never be “fixed” at all.

·Coding

ORB Strategy Backtest in Python Using Alpaca (10+ Years of Free Data)

A complete, reproducible ORB (Opening Range Breakout) strategy backtest in Python using over 10 years of free Alpaca SIP intraday data. This research demonstrates how to build and evaluate a professional intraday trading system with ATR and High/Low stop modes, proper adjustment handling, early close filtering, and full performance analytics, all runnable directly in Google Colab with no local setup required.

·Coding

Daily + 15:45 OHLCV: A Database for Reliable Backtesting

This tutorial shows how to download daily and intraday data from Massive.com and build a total-return equity dataset that treats splits, dividends, and market hours correctly. We combine split-adjusted closes, raw traded prices, and dividend events to compute daily total return, and aggregate intraday bars to cover the full session up to 15:45. The result is a coherent database that preserves real traded levels while enabling accurate total-return calculations.

Live Experiment

Can You Beat a Systematic Strategy?

We’re running a research experiment to test whether day trading skill can improve the performance of a fully systematic intraday strategy.

No trade generation. No guessing.
Just managing exposure using price action — and we are measuring the result.

Join the Experiment →