第一节 期权与期权合约
一、期权概念与期权发展
期权(Option)是指某一标的物的买卖权或选择权。
期权的特点:
第一,买方获得权利须向卖方支付一定费用;
第二,买来的权利具有时效性;
第三,期权买方在未来的买卖标的物是特定的;
第四,买方未来买卖标的物的价格是事先规定好的;
第五,期权买方可买进,也可卖出标的物;
第六,买方只有权利,并无义务;
第七,买方风险有限,获利空间巨大。
期权市场的发展(略)
二、期权的类型
看涨期权(Call Option),是指期权的买方向卖方支付一定数额的权利金后,即拥有在期权合约有效期内,按执行价格向期权卖方买入一定数量的标的物的权利,但不负有必须买进的义务。
看跌期权(Put Option),是指期权的买方向卖方支付一定数额的权利金后,即拥有在期权合约有效期内,按执行价格向期权卖方卖出一定数量的标的物的权利,但不负有必须卖出的义务。
三、期权合约
(一)期权合约规格
教材P364~365页,表11-1,美国芝加哥期货交易所小麦期权合约与期货合约的比较。
合约主要条款说明:
1、执行价格(exercise price),又称履约价格、敲定价格、行权价格,是期权权利执行时,标的物交割所依据的价格。
注意其给出方式及给出条件。
2、履约日,指期权权利可以执行的日期。具体分为:
欧式期权(European Option)
美式期权(American Option)
3、合约到期日(expiration)是指期权合约必须履行的时间,是期权合约的终点。一般是在相关期货合约交割日之前的一个月的某一天。
4、权利金(premium)是期权买方须向卖方支付的费用,即获得权利必须制服的费用。在竞价中产生。也称保险金、权价或期权价格。
对买方的意义:可能获得巨大收益须承担的最大风险。
对卖方的意义:是卖方可能获得的收入。
(二)期权合约标的物
现货期权:采用实物交割,按合约价格交付合约商品;
期货期权:标的物是相应的期货合约,履约的意义是将期权合约转换为期货合约。
第二节 期权价格
一、期权价格的构成
期权的价格就是买入或卖出期权合约时所支付或收取的权利金。
期权的权利金由内涵价值和时间价值组成。
(一)内涵价值:是指立即履行期权合约时可取得的总利润。这是由期权合约的执行价格与标的物价格的关系决定的。
根据执行价格与标的物价格之间的关系,期权可分为:
实值期权(in-the-money option)
虚值期权(out-of-the-money option)
平值期权(at-the-money option)
(二)时间价值(Time Value,TV)是指期权权利金扣除内涵价值的剩余部分,即权利金中超出内涵简直的部分,也称外在价值(extrinsic value)。
确定时间价值的根本因素,是买卖双方依据对未来时间内期权价值增减趋势的不同判断而互相竞价的结果。
一般,期权剩余有效期越长,其时间价值越大。
二、影响期权价格的基本因素
标的物价格及执行价格
标的物价格波动率
距到期日前剩余的时间
无风险利率
第三节 期权交易
一、交易指令的发出
市价或限价;买入或卖出;开仓或平仓;数量;合约到期月份;执行价格;标的物;期权种类;有保护或无保护。
如:以市价 买入(开仓) 10份 3月份到期 执行价格为1200元/吨的 小麦 看涨期权。
二、撮合成交
按照价格优先、时间优先的原则,由计算机撮合成交。
三、对冲平仓
将原有部位按反向交易,明确标明“平仓”。
权利金卖价减去买价,正则赢,负则亏。
四、期权履约后部位的转换
图11-4
五、期权结算
期权的买方无须进行每日结算,因为其最大风险就是成交时所交的权利金。
期权卖方的风险与期货一样存在,交易所要对卖方进行每日结算。
结算制度分为:传统制度、Delta制度和SPAN制度。
以下仅以传统制度为例进行说明
传统制度下期权保证金的计算原则
每一张卖空期权保证金为以下两者较大者:
1、权利金+期货合约的保证金-虚值期权价值的一半;
2、权利金+期货合约保证金的一半
(一)卖方持仓保证金结算[例4、例5]
(二)卖方当日开仓当日平仓结算[例6]
(三)卖方历史持仓结算[例7]
(四)买方权利金的结算[例8]
(五)履约结算
(六)权利金放弃的结算
(七)到期日实值期权自动结算
六、期权交易与期货交易
(一)期权交易与期货交易的联系
(二)期权交易与期货交易的区别
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Options and options trading
Section I Option and options contracts
First, the concept of options and development options
Option (Option) is a subject of the sale of rights or the right to choose.
Option features:
First, the buyer received the right to pay the seller a fee;
Second, bought the rights timeliness;
Third, the option buyer in the future is the subject of specific transactions;
Fourth, the buyer the subject of future trading price prior requirement is good;
Fifth, the option buyer can buy, or sell objects;
Sixth, only the buyer the right, there is no obligation;
Seventh, the buyer's risk is limited, space enormous profit.
Options market in the development of (abbreviated)
Second, the type of options
Call (Call Option), is the option to buy the seller to pay a certain amount of the right, that is owned in the life of options contracts, options on the implementation of the price the seller to buy a certain number of subject matter of the right, But there must fulfill the obligation to buy.
Put option (Put Option), is the option to buy the seller to pay a certain amount of the right, that is owned in the life of options contracts, options on the implementation of the price the seller to sell a certain number of subject matter of the right, But does not have to be sold obligations.
Third, options contracts
(A) options contracts specifications
Textbook P364 ~ 365 pages, Table 11-1, the U.S. Chicago Board of Trade wheat options contracts and futures contracts comparison.
Main provisions of the contract:
1, the implementation of the price (exercise price), also known as the strike price, the price finalized, to the right price, the option is the right implementation, subject of delivery is based on the price.
Attention is given its way and given the conditions.
2, performance, the options the right to refer to the date of implementation. Specifically divided into:
European option (European Option)
American Option (American Option)
3, the contract expiration date (expiration) refers to options contracts must fulfil the time, is the end of options contracts. In general is related to futures contracts settlement before the month of a given day.
4, the rights of the (premium) is the option buyer to the seller to pay the costs of that right must be the cost of uniforms. In the auction produced. Also said that insurance money and the right price or options prices.
The significance of the buyer: may be given the huge gains have to bear the greatest risk.
The significance of the seller: the seller is likely to receive income.
(B) options contracts subject matter
Spot options: physical delivery, the contract price contract delivery of goods;
Futures options: is the subject of the corresponding futures contracts, compliance is the significance of options contracts will be converted to futures contracts.
Section II option prices
First, the composition of options prices
The price of options is to buy or sell options contracts by the payment or receipt of the rights.
Options the right to the value and meaning by the time value component.
(A) the value of content: that is to immediately implement their options contracts can be achieved when the total profit. This is the price of options contracts and the implementation of the subject matter of the relationship between the price decision.
According to the implementation of prices and prices subject of the relationship between the options can be divided into:
Real options (in-the-money option)
Virtual value of options (out-of-the-money option)
- Value options (at-the-money option)
(B) value of time (Time Value, TV) is the right to deduct options connotation of the value of the remaining part, that is in excess of the right content is simply part of, also known as external value (extrinsic value).
Time to determine the value of the fundamental factors, is based on both buyers and sellers time options for the future trend of changes in the value of the different judgement of each other auction results.
General, the longer the validity of the remaining options, the greater the value of time.
Second, the impact on the prices of basic factors Options
The subject matter of price and the implementation of price
The subject matter of price volatility
From the due date the remaining time
Risk-free rate
Section III options trading
First, the directive issued trading
Market prices or prices; buy or sell; opening the granary or positions; volume contract expiration month; implementation of price target; options types of protection or have no protection.
Such as: the market price to buy (opening the granary) of 10 March due to the implementation of prices of 1,200 yuan / ton of wheat calls.
Second, were brought together
In accordance with the price of giving priority to the principle of giving priority time, were brought together by a computer.
Third, hedge positions
The original site by reverse transactions, clearly marked "open."
Maijia purchase price minus the right, is the win, while negative deficit.
Fourth, performance options after the conversion site
Figure 11-4
5, the Options Clearing House
Option buyers need for daily settlement, the biggest risk is because of its turnover by reference to the rights of the.
The seller of options and futures as risk exists, the exchange to the seller for the daily clearing.
Clearing system is divided into: the traditional system, Delta system and the SPAN system.
Following the traditional system only describe as an example
Under the traditional system of calculation principles margin options
Each one of short selling options larger margin for the following two:
1, + the right margin of futures contracts - virtual half of the value of options;
2, the right margin of futures contracts + 50%
(A) clearing the seller position margin [4 cases, cases of 5]
(B) the seller the same day opening the granary open the day clearing [of 6]
(C) the seller historical position settlement [of July]
(D) the buyer the right to the settlement [of 8]
(5) Compliance settlement
(6) the right to abandon the settlement
(7), real options expire automatically billing
6, options trading and futures trading
(A) futures and options trading links
(B) futures and options trading the difference between
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