It doesn't really matter how the Market is doing. After all, it was at a record high when the Great Depression hit.
/-----/ And the North Atlantic was cold when the Titanic sank. It's cold today. The market crashed for reasons that are not applicable today.
Stock prices began to decline in September and early October 1929, and on October 18 the fall began. Panic set in, and on October 24, Black Thursday, a record 12,894,650 shares were traded. Investment companies and leading bankers attempted to stabilize the market by buying up great blocks of stock, producing a moderate rally on Friday. On Monday, however, the storm broke anew, and the market went into free fall. Black Monday was followed by Black Tuesday (October 29), in which stock prices collapsed completely and 16,410,030 shares were traded on the New York Stock Exchange in a single day.