I accidentally stumbled onto this page. I am not endorsing any of it because I don't believe any opinions of any financial analysts anymore.
But this one paragraph (assuming it's true) did give me pause.
"In an analysis published in 2009, Therramus pointed out that Black Monday fell into a broader pattern in which nearly every stock market crash and recession of the preceding 50 years had occurred shortly after a large and abrupt change in the price of oil. In the case of the 1987 Dow crash, it was foreshadowed by a tumble in oil price that ensued in the wake of disputes within OPEC - which had come to a head in the previous year."
http://oil-price.net/en/articles/will-collapse-in-oil-price-cause-stock-market-crash.php
But this one paragraph (assuming it's true) did give me pause.
"In an analysis published in 2009, Therramus pointed out that Black Monday fell into a broader pattern in which nearly every stock market crash and recession of the preceding 50 years had occurred shortly after a large and abrupt change in the price of oil. In the case of the 1987 Dow crash, it was foreshadowed by a tumble in oil price that ensued in the wake of disputes within OPEC - which had come to a head in the previous year."
http://oil-price.net/en/articles/will-collapse-in-oil-price-cause-stock-market-crash.php