Is NYSE open on Sunday 21 May 2017?
No
No. NYSE does not trade on Sundays. It reopens on Monday 22 May 2017.
No trading
See also NYSE hours today and NYSE holidays 2017
Related markets on 21 May 2017
| Nasdaq | No trading |
| CME Equity | No trading |
| IEX | No trading |
| Cboe Options | No trading |
| Cboe Index Options | No trading |
 TSX | No trading |
 B3 | No trading |
 LSE | No trading |
 Xetra | No trading |
 Euronext Paris | No trading |