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Within four years, he was head of the block trading desk.
The new block trading system would be intended to reduce that risk.
In the Chicago commodity markets, such block trading is illegal.
Levy was a pioneer in block trading and the firm established this trend under his guidance.
The block trading desks will "work the trade" over a few hours or days by matching the shares with an order from other institutional customers.
And they do not expect firms to rush back in to handle the large block trading the way they did before the market's collapse.
Not exactly a playground for block trading.
Block trading is a useful measure for analysts in order to assess where institutional investors are pricing a stock.
Thus, any new block trading system would have to get around this prohibition or the rules would have to altered.
Freewheeling IP block trading seems like a dangerous game.
At the same time, investors say that because of reduced capital commitments to block trading by Wall Street firms, there is less liquidity.
Block trading firms could trade more for their customers because they could hedge their stock positions with futures.
"A lot of the volume was block trading," Mr. Ehrenkrantz said.
The absence of significant block trading by large institutional investors suggested that it was smaller retail investors who rushed to buy.
In fact, an official at only one Wall Street firm would admit, albeit privately, that his firm was making less capital available for block trading.
"We've been studying block trading like this for several years," Mr. Yemma said.
There are solid policy reasons to block trading by people who betray a professional trust by using inside information that is legally unavailable to outsiders.
"Indeed, block trading occurs," he said.
Merc officials intend the block trading proposal as a way to attract more institutional users to the stock futures pit.
That was true of institutional block trading in the 1970's and computerized index arbitrage in the 1980's.
So in September 1997, he began trading at a Block Trading office in Hartford.
The reduced commissions that institutions pay their brokers have caused some Wall Street firms to risk less capital on their "block trading" for large customers.
Riskier maneuvers such as block trading will not be abandoned altogether, bankers say, but the fees charged will be higher.
In the brokerage industry, off-the-floor buying and selling is known as "upstairs" trading, "crossing a trade" or "block trading."
"Block trading."