1
 Investors
5001
span

2
 who bought stock with borrowed money 
5002
span

3
-- that is, on margin -- 
2
restatement

4
may be more worried than most 
5003
Same-Unit

5
following Friday's market drop.
5003
circumstance

6
 That's because their brokers can require them to sell some shares or put up more cash 
5006
span

7
to enhance the collateral
5007
span

8
 backing their loans.
7
elaboration-object-attribute-e

9
 In October 1987, these margin calls were thought to have contributed to the downward spiral of the stock market.
5006
elaboration-additional

10
 Typically, a margin call occurs 
5010
span

11
when the price of a stock falls below 75% of its original value.
10
circumstance

12
 If the investor doesn't put up the extra cash 
5012
span

13
to satisfy the call, 
12
purpose

14
the brokerage firm may begin liquidating the securities. 
5013
span

15
 But some big brokerage firms said 
5016
attribution

16
they don't expect major problems 
5016
span

17
as a result of margin calls.
16
result

18
 Margin calls since Friday have been higher than usual, but reasonable, 
5018
span

19
a spokesman for Shearson Lehman Hutton Inc. said.
18
attribution

20
 Merrill Lynch & Co. officials don't expect {margin calls} to be as big a factor as in 1987 
5021
span

21
because fewer individual investors are buying stock on margin,
20
result

22
 a spokesman said.
5021
attribution

23
 Hugo Quackenbush, senior vice president at Charles Schwab Corp., the San Francisco-based discount brokerage firm, said 
24
attribution

24
he didn't expect any immediate problems with margin calls for Schwab customers.
5023
span

25
 He said 
5026
attribution

26
Schwab had increased margin requirements 
5026
span

27
so customers have more of a cushion.
26
reason

28
 He added: 
29
attribution

29
We learned a lesson in 1987 about volatility.
5028
span

5001
span
5003
Same-Unit

5002
span
1
elaboration-object-attribute-e

5003
multinuc
5004
span

5004
span
5005
Cause-Result

5005
multinuc
5009
span

5006
span
5008
span

5007
span
6
purpose

5008
span
5005
Cause-Result

5009
span



5010
span
5011
span

5011
span
5017
concession

5012
span
14
condition

5013
span
5010
elaboration-additional

5014
span
5005
interpretation-s

5015
span
5017
span

5016
span
5015
span

5017
span
5014
span

5018
span
5020
List

5019
span



5020
multinuc
5015
example

5021
span
5022
span

5022
span
5020
List

5023
span
5024
span

5024
span
5020
List

5025
span
5027
span

5026
span
5025
span

5027
span
5023
elaboration-additional

5028
span
5025
elaboration-additional

