There are a number of factors contributing to the yen's rise, currency traders say.
Traders say the thin volumes mean some investors shouldn't be too quick to judge the moves.
Meanwhile, some veteran European traders say they do feel the fixing process is transparent.
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Traders say that meeting is supposed to take place at 7am New York time on Tuesday.
Whatever the reason for the glitches, some traders say the new rules come with some unintended consequences.
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Traders say the work is vital and should be done at the same time to minimise disruption.
Analysts and traders say the slide may not be over yet due to potential for further momentum-based selling.
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That's not a reason to get excited about these stocks, some traders say.
An earthquake in April that struck a main producing area in Qinghai province is part of the reason, traders say.
Traders say investors should always use limit orders, which specify the price at which they are willing to buy or sell.
Traders say neighbouring Chinese restaurants and markets are the market's main customers.
At this point, a 4800 Nifty 50 is the last line of support and any closing below that would trigger deeper declines, traders say.
The FSA has identified price-rigging dating back to 2005, yet some current and former traders say that problems go back much further than that.
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Traders say the market is growing impatient and wants to see other strong measures, such as greater deregulation and plans to spur business and consumer spending.
Greenwich Market traders say they lost money on Saturday when cordons blocked access to their stalls depriving them of passing trade from the 2012 equestrian competition.
During this past week's bout of yen weakness, traders say speculators bought dollars around 93 to 94 yen and may consider taking profits at 96 yen before re-entering the trading.
Besides wedding season demand, some buying may come during the Hindu festival of Akshaya Trithiya on May 13, which is considered one of the most auspicious festival gold-buying occasions, traders say.
Software can't yet replicate all the complex trades used in options strategies some traders say, though there's plenty of disagreement on this front, so for now these trades remain on the floor.
Global copper inventories are down by about a third this year, and traders say that with supplies so tight, the risk is that prices could rise more rapidly if the recovery gathers pace.
"As traders say goodbye and probably good riddance to 2011, a year that saw most of the European and Asian indices recording double-digit losses, traders may not be so welcoming to 2012 either, " said Jonathan Sudaria, a dealer at brokerage Capital Spreads.
Traders in Masham say they suffered a 30% drop in visitor numbers after signposts on the A1 were removed when the road was widened in 2009.
That s not to say traders have greater insight into the cost than everyone else, it s only indicative of the powerful effect uncertainty can have when pricing stocks.
Open systems like Bridge and Reuters, say some traders, make it easier to manipulate data.
Traders and industry officials say it is the best the market can do for now.
As a result, it is safe to say that traders are likely to remain on high alert for any and all economic news from April and beyond.
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Traders, however, say that some of the buying interest seems to be waning despite the wedding season demand and the Hindu festival of Akshaya Tritiya on May 13, when it is considered auspicious to buy gold.
To make short-selling faster, there are rules that say all traders need do is "locate" a share of the stock they want to short, meaning they find someone to say they have the shares to lend out to them.
In volatile times, traders use turrets more, say two not entirely disinterested turret vendors.
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Regulators say the BP traders did this with the knowledge, advice, and consent of senior BP management.
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