Now Live: Cboe Europe real-time data for all major European stocks.
United States
opens in 8h 19m
Market closed

Pre-market opens in 2 hours 49 minutes
Main market opens in 8 hours 19 minutes

01:10
00:00
09:30
16:00
23:59

Trading Hours (Monday - Friday):

Pre-market
04:00 - 09:30
Main market
09:30 - 16:00
Post-market
16:00 - 20:00
All times are displayed in the America/New_York timezone (EDT, UTC-04:00).
Exchanges

TRADEWEB MARKETS LLC

Description

TW SEF LLC (TWSEF) is a segment of Tradeweb (TRWB) based in New York, United States. It is a swap execution facility - an electronic platform for trading in swaps and derivatives.

Specifications

MIC code
TWSF
Operating MIC code
TRWB
OPRT/SGMT
SGMT
Market name – Institution description
TW SEF LLC
LEI
5493003NKIZWOQGS5U67
Market category code
SEFS
ISO country code
US
City
New York
Registry status
Active
Creation date
Jul 28, 2014
Last update
Apr 27, 2026
Last validation
Apr 27, 2026
Comments
ELECTRONIC PLATFORM FOR TRADING IN SWAPS AND DERIVATIVES.