The New York Stock Exchange has been closed every Good Friday for at least 144 years, except 1898, 1906 and 1907.
The last one was the year as the infamous Panic of 1907, when the total value of all Big Board stocks plunged by more than a third. Hence, a legend that persists 101 years later:
Traders get to stay home Friday before Easter not just because it’s a Christian holy day but because of an association with one of history’s great bear markets.  The market behaved so badly that the exchange vowed never to allow trading on Good Friday again. The bear market began after the market peaked in September 1906.
By November 1907, the aggregate value of all shares on the NYSE had plunged 37 per cent.