At one point in the early afternoon in New York, the Nasdaq composite index - which reflects the value of tech firms - was down nearly 7% on the day, and had plunged to just half its value from from the high point of 5, 048.6 it reached on 10 March.
The Bitcoin virtual currency lost half its value on Wednesday because of a panic sell-off.
Its shares rose 150% between 1999 and 2003, then lost half their value by late 2006.
Lloyds Banking Group has now seen its shares lose nearly half their value in 2011.
In other words, they have lost at least half their value against the broader market.
By the final low in October 1974, the NYSE Composite had lost over half its value.
Its stock lost about half its value on Friday and most of the rest over the weekend.
Shares in the firm had already lost half their value since the scandal first broke last year.
In a relatively short period of time, the stock lost half its value and languished for years.
Moods became dramatically darker, however, as the index proceeded to lose half its value over the next 31 months.
The lira has lost half its value against the US dollar since Turkey first lurched into crisis in February.
Recently, Malawi's currency, the kwacha, lost almost half its value and this has put a strain on the running of businesses.
Since bottoming out in 2001, it has regained about half its value.
It has even provided details of its litigation to analysts who cover Gevo, whose shares have lost half their value this year.
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And politically Europe would only have half the value without the euro.
Having lost half its value in the past year, the stock seems to fully reflect the current state of affairs at the firm.
But this measure, by creating a dollar black market, had the opposite effect: last year the cedi lost more than half its value.
Inflation has been ramping at 20% a month, and the rial has lost roughly half its value against the dollar in recent months.
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Assuming the company stock in the plan has lost half its value this year, employee retirement assets have likely taken a near 9% hit.
His worst-case scenario assumes that 90% of the CMO's mortgages default and it recoups only half their value, resulting in a net 45% loss.
In addition, Asia paid close attention to the Mexican crisis of 1994-95, when the peso lost half its value in a matter of weeks.
His former supporters among the poor have been hit by the collapse of the peso, which lost half its value against the dollar last year.
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One day I wrote about a seeming anomaly in the markets, a Scottish holding company that could be purchased for half the value of its U.S.-traded subsidiary.
Wall Street analysts are expecting the company's second-quarter earnings to be about half their value from last year, falling to 24 cents per share, from 44 cents.
In other words, Goldman may think that the near-collapse of American financial-services shares, some of which have lost half their value in a few months, is wildly overdone.
With the stock market losing approximately half its value in 17 months, talk is rampant about how best to regulate businesses and capital markets to prevent future financial crises.
But that's less than half its value in May, when the shares began to slide as the effects of the global credit crunch began to weigh on the financial markets.
Netflix lost more than half its value in the stock market and provoked a customer revolt after announcing its plan to separate the streaming and the DVD sides of the business.
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