LEARN MARKETS

Pattern day trader (PDT) was a FINRA classification that applied to margin account holders who executed four or more day trades within a five-business-day window. The effective date for this rule change was June 4th, 2026.

2025 was anything but dull. From tariff panic to an AI-driven rally, markets swung from fear to euphoria—and traders adapted fast. Here’s how the year unfolded.

Earnings season gives traders a look into how companies are performing and what might drive stock moves. Learn when reports drop and how to read them.

Active trading is growing in popularity, with a record-breaking number of options contracts and a rise in retail investors.

Premarket trading and extended trading hours let traders act on news before and after standard US market hours. This article covers when premarket trading starts, how extended hours trading works, tastytrade's near 24-hour stock trading window, and Global Trading Hours (GTH), tastytrade's near 24-hour options trading session for index options.