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In the following text, what does "mark" mean? Does the phrase mean the administration doesn't have to reassess the market value of the bonds daily?

Thanks in advance.

The euro's difficulties have also inflicted tens of billions of dollars in losses on the value of China's $2.4 trillion in foreign exchange reserves, according to Western economists. China had been trying to limit its dependence on U.S. Treasury securities for those reserves in recent years, fearing that the United States might someday suffer from budget problems or inflation, and did so by expanding its holdings of European government bonds.
But the State Administration of Foreign Exchange, which administers the reserves, does not have to mark them to market value daily, so it is not clear what effect, if any, the losses will have on Chinese policy.
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In this context mark them to market value means 'record them in the accounting books at their current value'.

See
http://en.wikipedia.org/wiki/Mark-to-market_accounting

CJ
Comments  
The implication is that by leaving the assets on the books at the original price, the value is overstated. If made to "mark" to market, then the Euro bonds would plummet immediately.

Mark is a synonym for "adjust" in this context. This usage of "mark" is limited to adjustments of financial valuation as far as I know.