Thus, derivatives trading – mostly futures contracts on interest rates, foreign currencies, Treasury bonds, etc had reached a level of $1,200 trillion, $1.2 quadrillion, a year. By comparison, U.S. GDP in 2006 was $12.456 trillion.
The table below provides data for the annual amount of financial trading in U.S. financial markets, compared to GDP.
Sources for Table above:
Equity Markets Trading, Statistical Abstract of the United States. For example 1990 and 2000 taken from Table 1201, Sales of Stocks on Registered Exchanges, 1990 to 2003, "Market Value of all Sales" minus "CBOE" Statistical Abstract of the United States, 2004-2005.
U.S. government securities trading, Statistical Abstract of the United States. For example 1990 and 2000 taken from Table 1190, Volume of Debt Markets by Type of Security, 1990 to 2003, Statistical Abstract of the United States 2004-2005.
Futures Trading, are estimates based on the average value of types of futures contracts, multiplied by the number of contracts traded, reported by the Futures Industries Association.

Foreign exchange tradingThe

demise of fixed exchange rates initiated a rapid rise in the level of foreign exchange trading (forex). In the United States, forex leaped from $110.8 billion in 1970, 10.7 percent of U.S. Gross Domestic Product, to $5.449 trillion in 1980, 195.3 percent of U.S. GDP. These figures are estimates, but in April 1977, the U.S. Federal Reserve Bank of New York undertook to measure the actual amount of forex in the United States, surveying forex trading at 44 large money center banks, which the Fed believed probably represented 98 percent of all forex in the United States at that time. This April 1977 study found there was $4.8 billion in daily forex trading, or around $1.2 trillion a year. However, this study did not include all the trading in futures trading for various currencies. Currency futures were first created at the Chicago Mercantile Exchange (CME) in 1972, the year after fixed exchange rates were abandoned.

Financialization is a relatively new polemical term used to discuss the emergence of a new form of capitalism in which financial markets dominate over the traditional industrial economy. Greta Krippner of the University of California - Los Angeles has written that “financialization” refers to a “pattern of accumulation in which profit making occurs increasingly through financial channels rather than through trade and commodity production.” In the Introduction to the 2006 book Financialization and the World Economy, editor Gerald A. Epstein wrote that some scholars have insisted on a much more narrow use of the term: the ascendancy of “shareholder value” as a mode of corporate governance; or the growing dominance of capital market financial systems over bank-based financial systems.
More popularly, however, financialization is understood to mean the vastly expanded role of financial motives, financial markets, financial actors and financial institutions in the operation of domestic and international economies. In his 2006 book, American Theocracy: The Peril and Politics of Radical Religion, Oil, and Borrowed Money in the 21st Century, American writer and commentator Kevin Phillips presented financialization as “a process whereby financial services, broadly construed, take over the dominant economic, cultural, and political role in a national economy.” (page 268). Philips consider that the financialization of the U.S. economy follows the same pattern that marked the beginning of the decline of Hapsburg Spain in the 16th century, the Dutch trading empire in the 18th century, and the British empire in the 19th century:
. . . the leading economic powers have followed an evolutionary progression: first, agriculture, fishing, and the like, next commerce and industry, and finally finance. Several historians have elaborated this point. Brooks Adams contended that “as societies consolidate, they pass through a profound intellectual change. Energy ceases to vent through the imagination and takes the form of capital.”