Nasdaq PSX Market Holidays#

Nasdaq PSX (Philadelphia Stock Exchange) is one of Nasdaq’s three U.S. equities exchanges. It utilizes a price/time priority model and features a Qualified Market Maker (QMM) Program that rewards market makers who actively quote at the National Best Bid or Offer (NBBO). Full L1 history for Nasdaq PSX from the Consolidated Tape is available in the US_COMP dataset.

The last 10 Market Holidays are listed

Nasdaq PSX - Recent Market Holidays#

Activity Name

Time Zone

Start Date

End Date

Start Time

End Time

Full Holiday

America/New_York

2026-09-07

2026-09-07

00:00

24:00

Full Holiday

America/New_York

2026-07-03

2026-07-03

00:00

24:00

Full Holiday

America/New_York

2026-06-19

2026-06-19

00:00

24:00

Full Holiday

America/New_York

2026-05-25

2026-05-25

00:00

24:00

Full Holiday

America/New_York

2026-04-03

2026-04-03

00:00

24:00

Full Holiday

America/New_York

2026-02-16

2026-02-16

00:00

24:00

Full Holiday

America/New_York

2026-01-19

2026-01-19

00:00

24:00

Full Holiday

America/New_York

2026-01-01

2026-01-01

00:00

24:00

Full Holiday

America/New_York

2025-12-25

2025-12-25

00:00

24:00

Non Trading Hours

America/New_York

2025-12-24

2025-12-24

13:00

17:00