Vacation areas for So, in essence, the secondary stock markets are speculative as well as market-driven. Stock values and market-trading volume are also affected and effected by non-economic events making for 802 stock market volatile cycles. The 1970s saw the NYSE affected by the Richard NIXON presidency scandal, the end of VIETNAM WAR, and the Jimmy CARTER presidency. The 1980s looked like an era of recovery as stock values soared, only to be burst by the October 19, 1987, DOW JONES Industrial Average drop of 508 points, the largest in history. Two days of unprecedented volume followed with a total of over 400 million shares traded. The 1990s saw the collapse of the Cold War and a further meteoric rise of market values on the NYSE. But on October 27, 1997, the Dow Jones plunged again 554 points. Vacation areas 2016.