Complex Position Size

For complex, multi-leg options positions comprising two or more legs, TWS might not track all changes to this position, e.g. a vertical spread where the short leg is assigned and the user re-writes the same leg the next day, or if the user creates a the position over multiple trades, or if the order is not filled as a native combination at the exchange.

If you received a message because you are submitting an order to close a position, roll a position, or modify a position using the “% Change” feature, it means that the maximum quantity of option positions in your account that are available to close for this order is different from that of the original position tracked by TWS.
Before submitting, you should review the order and confirm that the order quantity we have calculated is the correct quantity that you want to trade.

盈收

北美上市公司通常要求按季度發佈盈收報告。這些報告包含一系列相關數據(收益和利潤數據),通常可反映公司未來的盈收能力,可能引起公司股票市價的巨大波動。從期權交易的視角看,任何可能導致股票波動的因素都會影響其期權定價。盈收發佈也不例外。

期權交易者常常試圖預期市場對盈收新聞的反應。他們知道隨著盈收發佈日期的臨近,隱含波動率-期權價格的關鍵因素-將穩步上升,而斜線-平價期權與價外期權隱含波動率的差額-也會逐漸變陡。調整幅度通常基於歷史情況而定。過去在盈收發佈后出現重大波動的股票通常期權價格會更高。

盈收風險具有特殊性,這意味著其通常因股票而異,且不易於與指數或同類公司對沖。相互密切關聯的股票其反應可能會大相徑庭,會導致股價偏離或指數衰減。處於這些原因,沒有哪個策略適用於在這些情境下交易期權。交易者必須對股票的可能動向有十分清晰的預期,然後決定哪種期權組合可能會產生最大的利潤。

如果市場對一家公司的盈收預期太過樂觀,很簡單,只需購買(儘管通常比較貴)跨式期權或價外看跌期權并期待市場發生重大變動。在即月隱含波動率過高時利用反向預期也可能盈利,但是這也可能在股票大幅上揚時成為空頭裸期權,從而導致嚴重的損失。交易者可通過購買日曆價差-賣出即月看跌期權并買入下月行使價相同的期權-來利用較高的即月波動率。如果股票以行使價成交,且即月期權下滑速度遠大於價格更高的遠期期權,則會實現最大盈利。損失限制為初始交易價格。

當價外看跌期權隱含波動率日漸高於平價期權,斜線會變得十分陡峭,表明市場過度恐慌。使用垂直價差的交易者可在這種情境下盈利。看跌交易者可以買入平價看跌期權,同時賣出價外看跌期權。這允許買家支付部份高價期權成本,儘管如果股價跌至較低行使價以下,這回超出限制交易利潤。另一方面,認為市場過度看跌的交易者可以賣出價外看跌期權,同時買入行使價更低的看跌期權。儘管交易者買入的是波動率較高的期權,只要股價高於行使價,就能盈利,同時損失也限定在兩個行使價之間的差額。

該文章僅作信息參考,并不旨在提供建議或招攬買賣證券。期權交易涉及重要風險。交易期權前請閱讀“標準期權的特徵和風險。”客戶對其自身的交易決定負全部責任。

到期前行使看漲期權的注意事項

簡介

到期前行使股票看漲期權通常不會帶來收益,因為:

  • 這會導致剩餘期權時間價值的丟失;
  • 需要更大的資金投入以支付股票交割;並且
  • 會給期權持有人帶來更大的損失風險。

儘管如此,對於有能力滿足更高資金或借款要求并能承受更大下行市場風險的帳戶持有人來說,提前行使美式看漲期權行可獲取即將分派的股息。

背景

看漲期權持有人無權獲取底層股票的股息,因為該股息屬於股息登記日前的股票持有人所有。其他條件相同,股價應下降,降幅與除息日的股息保持一致。期權定價理論提出看漲期權價格將反映預期股息的折扣價格,看漲期權價格也可能在除息日下跌。最可能促成該情境與提前行權決定的條件如下:

1. 期權為深度價內期權,且Delta值為100;

2. 期權幾乎沒有時間價值;

3. 股息相對較高,且除息日在期權到期日之前。

舉例

為闡述這些條件對提前行權決定的影響,假設帳戶的多頭現金餘額為$9,000美元,且持有行使價為$90.00美元的ABC多頭看漲頭寸,10天后到期。ABC當前成交價為$100.00美元,每股股息為$2.00美元,明天是除息日。再假設期權價格和股票價格走勢相同,且在除息日下跌的幅度均為股息金額。

這裡,我們將檢查行權決定,目的是維持100股delta頭寸并使用兩種期權價格假設(一個為平價,一個高於平價)最大化總資產。

情境 1:期權價格為平價 - $10.00美元
如果期權以平價交易,提前行權可維持delta頭寸并可避免股票除息交易時多頭期權價值遭到損失,從而保護資產。在這裡現金收入被全數用於以行使價購買股票,期權權利金就此喪失,並且股票(扣除股息)與應收股息會記入帳戶。如果您想通過在除息日前賣出期權并買入股票來達到同樣的效果,請記得考慮佣金/價差:

情境 1

帳戶組成部份 

起始餘額 

提前行權 

無行動 

賣期權 &

買股票

現金 $9,000 $0 $9,000 $0
期權 $1,000 $0 $800 $0
股票 $0 $9,800 $0 $9,800
應收股息 $0 $200 $0 $200
總資產 $10,000 $10,000 $9,800 $10,000減去佣金/價差

 

 

情境 2:期權價格高於平價 - $11.00美元
如果期權以高於平價的價格交易,提前行權獲取股息則可能並不會帶來收益。在此情境中,提前行權可能會導致期權時間價值損失$100美元,而賣出期權買入股票在扣除佣金之後收益情況也可能不如不採取行動。在這裡,可取的行動為無行動。

情境 2
帳戶組成部份  起始餘額 提前行權  無行動

賣期權 &

買股票

現金 $9,000 $0 $9,000 $100
期權 $1,100 $0 $1,100 $0
股票 $0 $9,800 $0 $9,800
應收股息 $0 $200 $0 $200
總資產 $10,100 $10,000 $10,100 $10,100減去佣金/價差

  

請注意:考慮到空頭期權邊被行權的可能性,持有作為價差組成部分之多頭看漲頭寸的賬戶持有人應格外注意不行使多頭期權邊的風險。請注意,空頭看漲期權的被行權會導致空頭股票頭寸,且在股息登記日前持有空頭股票頭寸的持有人有義務向股票的借出者支付股息。此外,清算所行權通知處理週期不支持提交響應被行權的行權通知。

例如,假設SPDR S&P 500 ETF Trust (SPY)的信用看漲(熊市)價差包括100張13年3月到期行使價為$146美元的空頭合約,以及100張13年3月到期行使價為$147美元的多頭合約。在13年3月14日,SPY Trust宣布每股股息為$0.69372美元,並且會在13年4月30日向13年3月19日前登記的股東支付。因為美國股票的結算週期為3個工作日,想要獲取股息,交易者需要在13年1月14日之前買入股票或行使看漲期權,因為該日期一過,股票便開始除息交易。

13年3月14日,距離期權到期只剩一個交易日,平價成交的兩張期權合約每張合約的最大風險為$100美元,100張合約則為$10,000美元。但是,未能行使多頭合約以獲取股息以及未能避免空頭合約被其他想要獲取股息的交易者行權會使每張合約產生額外$67.372美元的風險,如果所有空頭看漲合約都被行權,則所有頭寸總風險為$6,737.20美元。如下表所示,如果空頭期權邊沒有被行權,則13年3月15日確定最終的合約結算價格時,最大風險仍為每張合約$100美元。

日期 SPY收盤價 3月13日行使價為$146美元的看漲期權 3月13日行使價為$147美元的看漲期權
2013年3月14日 $156.73 $10.73 $9.83
2013年3月15日 $155.83   $9.73 $8.83

請注意,如果您的賬戶符合美國871(m)預扣稅要求,則除息日前平倉頭多期權頭寸並在除息日後重新建倉可能會帶來收益。

有關如何提交提前通知的信息請查看IB網站

 

上方內容僅作信息參考,不構成任何推薦或交易建議,也不代表提前行權會成功或適合所有客戶或交易。帳戶持有人應諮詢稅務專家以確定提前行權可能帶來的稅務影響,并應格外注意以多頭股票頭寸替換多頭期權頭寸的潛在風險。

Earnings

Publicly traded companies in North America generally are required to release earnings on a quarterly basis. These announcements, which contain a host of relevant statistics, including revenue and margin data, and often projections about the company's future profitability, have the potential to cause a significant move in the market price of the company's shares. From an options trading viewpoint, anything with the potential to cause volatility in a stock affects the pricing of its options. Earnings releases are no exceptions.

Options traders often try to anticipate the market's reaction to earnings news. They know implied volatilities, the key to options prices, will steadily rise while skew - the difference in implied volatility between at-money and out-of-the-money options - will steadily steepen as the earnings date approaches. The degree by which those adjustments occur is often based on history. Stocks that have historically made significant post-earnings moves often have more expensive options.

Earnings risk is idiosyncratic, meaning that it is usually stock specific and not easily hedged against an index or a similar company. Stocks that are normally quite well correlated may react quite differently, leading to share prices that diverge or indices with dampened moves. For those reasons, there is no single strategy that works for trading options in these situations. Traders must have very clear expectations for a stock's potential move, and then decide which combination of options will likely lead to the most profitable results if the trader is correct.

If the market seems too sanguine about a company's earnings prospects, it is fairly simple (though often costly) to buy a straddle or an out-of the-money put and hope for a big move. Taking advantage of the opposite prospect, when front month implied volatilities seem too high, can also be profitable but it can also cause serious losses to be short naked options in the face of a big upward stock move. Traders can take advantage of high front month volatility by buying a calendar spread - selling a front month put and buying the same strike in the following month. The maximum profit potential is reached if the stock trades at the strike price, with the front-month option decaying far faster than the more expensive longer-term option. Losses are limited to the initial trade price.

Sometimes excessive fear is expressed by extremely steep skew, when out-of-the-money puts display increasingly higher implied volatilities than at-money options. Traders who use vertical spreads can capitalize on this phenomenon. Those who are bearish can buy an at-money put while selling an out-of-the-money put. This allows the purchaser to defray some of the cost of a high priced option, though it caps the trade's profits if the stock declines below the lower strike. On the other hand, those who believe the market is excessively bearish can sell an out-of-the-money put while buying an even lower strike put. Although the trader is buying the higher volatility option, it allows him to make money as long as the stock stays above the higher strike price, while capping his loss at the difference between the two strikes.

This article is provided for information only and is not intended as a recommendation or a solicitation to buy or sell securities. Option trading can involve significant risk. Before trading options read the "Characteristics and Risks of Standardized Options." Customers are solely responsible for their own trading decisions. 

Option Strategy Lab

General overview of the Option Strategy Lab

Considerations for Exercising Call Options Prior to Expiration

INTRODUCTION

Exercising an equity call option prior to expiration ordinarily provides no economic benefit as:

  • It results in a forfeiture of any remaining option time value;
  • Requires a greater commitment of capital for the payment or financing of the stock delivery; and
  • May expose the option holder to greater risk of loss on the stock relative to the option premium.

Nonetheless, for account holders who have the capacity to meet an increased capital or borrowing requirement and potentially greater downside market risk, it can be economically beneficial to request early exercise of an American Style call option in order to capture an upcoming dividend.

BACKGROUND

As background, the owner of a call option is not entitled to receive a dividend on the underlying stock as this dividend only accrues to the holders of stock as of its dividend Record Date. All other things being equal, the price of the stock should decline by an amount equal to the dividend on the Ex-Dividend date. While option pricing theory suggests that the call price will reflect the discounted value of expected dividends paid throughout its duration, it may decline as well on the Ex-Dividend date.  The conditions which make this scenario most likely and the early exercise decision favorable are as follows:

1. The option is deep-in-the-money and has a delta of 100;

2. The option has little or no time value;

3. The dividend is relatively high and its Ex-Date precedes the option expiration date. 

EXAMPLES

To illustrate the impact of these conditions upon the early exercise decision, consider an account maintaining a long cash balance of $9,000 and a long call position in hypothetical stock “ABC” having a strike price of $90.00 and time to expiration of 10 days. ABC, currently trading at $100.00, has declared a dividend of $2.00 per share with tomorrow being the Ex-Dividend date. Also assume that the option price and stock price behave similarly and decline by the dividend amount on the Ex-Date.

Here, we will review the exercise decision with the intent of maintaining the 100 share delta position and maximizing total equity using two option price assumptions, one in which the option is selling at parity and another above parity.

SCENARIO 1: Option Price At Parity - $10.00
In the case of an option trading at parity, early exercise will serve to maintain the position delta and avoid the loss of value in long option when the stock trades ex-dividend, to preserve equity. Here the cash proceeds are applied in their entirety to buy the stock at the strike, the option premium is forfeited and the stock (net of dividend) and dividend receivable are credited to the account.  If you aim for the same end result by selling the option prior to the Ex-Dividend date and purchasing the stock, remember to factor in commissions/spreads:

SCENARIO 1

Account

Components

Beginning

Balance

Early

Exercise

No

Action

Sell Option &

Buy Stock

Cash $9,000 $0 $9,000 $0
Option $1,000 $0 $800 $0
Stock $0 $9,800 $0 $9,800
Dividend Receivable $0 $200 $0 $200
Total Equity $10,000 $10,000 $9,800 $10,000 less commissions/spreads

 

SCENARIO 2: Option Price Above Parity - $11.00
In the case of an option trading above parity, early exercise to capture the dividend may not be economically beneficial. In this scenario, early exercise would result in a loss of $100 in option time value, while selling the option and buying the stock, after commissions, may be less beneficial than taking no action. In this scenario, the preferable action would be No Action.

SCENARIO 2

Account

Components

Beginning

Balance

Early

Exercise

No

Action

Sell Option &

Buy Stock

Cash $9,000 $0 $9,000 $100
Option $1,100 $0 $1,100 $0
Stock $0 $9,800 $0 $9,800
Dividend Receivable $0 $200 $0 $200
Total Equity $10,100 $10,000 $10,100 $10,100 less commissions/spreads

  

NOTE: Account holders holding a long call position as part of a spread should pay particular attention to the risks of not exercising the long leg given the likelihood of being assigned on the short leg.  Note that the assignment of a short call results in a short stock position and holders of short stock positions as of a dividend Record Date are obligated to pay the dividend to the lender of the shares. In addition, the clearinghouse processing cycle for exercise notices does not accommodate submission of exercise notices in response to assignment.

As example, consider a credit call (bear) spread on the SPDR S&P 500 ETF Trust (SPY) consisting of 100 short contracts in the March '13 $146 strike and 100 long contracts in the March '13 $147 strike.  On 3/14/13, with the SPY Trust declared a dividend of $0.69372 per share, payable 4/30/13 to shareholders of record as of 3/19/13. Given the 3 business day settlement time frame for U.S. stocks, one would have had to buy the stock or exercise the call no later than 3/14/13 in order receive the dividend, as the next day the stock began trading Ex-Dividend. 

On 3/14/13, with one trading day left prior to expiration, the two option contracts traded at parity, suggesting maximum risk of $100 per contract or $10,000 on the 100 contract position. However, the failure to exercise the long contract in order to capture the dividend and protect against the likely assignment on the short contracts by others seeking the dividend created an additional risk of $67.372 per contract or $6,737.20 on the position representing the dividend obligation were all short calls assigned.  As reflected on the table below, had the short option leg not been assigned, the maximum risk when the final contract settlement prices were determined on 3/15/13 would have remained at $100 per contract.

Date SPY Close March '13 $146 Call March '13 $147 Call
March 14, 2013 $156.73 $10.73 $9.83
March 15, 2013 $155.83   $9.73 $8.83

Please note that if your account is subject to tax withholding requirements of the US Treasure rule 871(m), it may be beneficial to close a long option position before the ex-dividend date and re-open the position after ex-dividend.

For information regarding how to submit an early exercise notice please click here

The above article is provided for information purposes only as is not intended as a recommendation, trading advice nor does it constitute a conclusion that early exercise will be successful or appropriate for all customers or trades. Account holders should consult with a tax specialist to determine what, if any, tax consequences may result from early exercise and should pay particular attention to the potential risks of substituting a long option position with a long stock position.

Equity & Index Option Position Limits

Overview: 

Equity option exchanges define position limits for designated equity options classes.  These limits define position quantity limitations in terms of the equivalent number of underlying shares (described below) which cannot be exceeded at any time on either the bullish or bearish side of the market.  Account positions in excess of defined position limits may be subject to trade restriction or liquidation at any time without prior notification.

Background: 

Position limits are defined on regulatory websites and may change periodically.  Some contracts also have near-term limit requirements (near-term position limits are applied to the side of the market for those contracts that are in the closest expiring month issued).  Traders are responsible for monitoring their positions as well as the defined limit quantities to ensure compliance.  The following information defines how position limits are calculated;

 

Option position limits are determined as follows:

  • Bullish market direction -- long call & short put positions are aggregated and quantified in terms of equivalent shares of stock.
  • Bearish market direction -- long put & short call positions are aggregated and quantified in terms of equivalent shares of stock.

The following examples, using the 25,000 option contract limit, illustrate the operation of position limits:

  • Customer A, who is long 25,000 XYZ calls, may at the same time be short 25,000 XYZ calls, since long and short positions in the same class of options (i.e., in calls only or in puts only) are on opposite sides of the market and are not aggregated
  • Customer B, who is long 25,000 XYZ calls, may at the same time be long 25,000 XYZ puts. Rule 4.11 does not require the aggregation of long call and long put (or short call and short put) positions, since they are on opposite sides of the market.
  • Customer C, who is long 20,000 XYZ calls, may not at the same time be short more than 5,000 XYZ puts, since the 25,000 contract limit applies to the aggregate position of long calls and short puts in options covering the same underlying security. Similarly, if Customer C is also short 20,000 XYZ calls, he may not at the same time have a long position of more than 5,000 XYZ puts, since the 25,000 contract limit applies separately to the aggregation of short call and long put positions in options covering the same underlying security.

 

Notifications and restrictions:

 

IB will send notifications to customers regarding the option position limits at the following times:

  • When a client exceeds 85% of the allowed limit IB will send a notification indicating this threshold has been exceeded
  • When a client exceeds 95% of the allowed limit IB will place the account in closing only. This state will be maintained until the account falls below 85% of the allowed limit. New orders placed that would increase the position will be rejected.

 

Notes:

Position limits are set on the long and short side of the market separately (and not netted out).
Traders can use an underlying stock position as a "hedge" if they are over the limit on the long or short side (index options are reviewed on a case by case basis for purposes of determining which securities constitute a hedge).
Position information is aggregated across related accounts and accounts under common control.

 

Definition of related accounts:

IB considers related accounts to be any account in which an individual may be viewed as having influence over trading decisions. This includes, but is not limited to, aggregating an advisor sub-account with the advisor's account (and accounts under common control), joint accounts with individual accounts for the joint parties and organization accounts (where an individual is listed as an officer or trader) with other accounts for that individual.

 

Position limit exceptions:

Regulations permit clients to exceed a position limit if the positions under common control are hedged positions as specified by the relevant exchange. In general the hedges permitted by the US regulators that are recognized in the IB system include outright stock position hedges, conversions, reverse conversions and box spreads. Currently collar and reverse collar strategies are not supported hedges in the IB system. For more detail about the permissible hedge exemptions refer to the rules of the self regulatory organization for the relevant product.

OCC posts position limits defined by the option exchanges.   They can be found here.
http://www.optionsclearing.com/webapps/position-limits

Where can I receive additional information on options?

The Options Clearing Corporation (OCC), the central clearinghouse for all US exchange traded securities option, operates a call center to serve the educational needs of individual investors and retail securities brokers. The resource will address the following questions and issues related to OCC cleared options products:

- Options Industry Council information regarding seminars, video and educational materials;

- Basic options-related questions such as definition of terms and product information;

- Responses to strategic and operational questions including specific trade positions and strategies.

The call center can be reached by dialing 1-800-OPTIONS. The hours of operation are Monday through Thursday from 8 a.m. to 5 p.m. (CST) and Friday from 8 a.m. to 4 p.m. (CST). Hours for the monthly expiration Friday will be extended to 5 p.m. (CST).

What is the margin on a Butterfly option strategy?

Overview: 

In order for the software utilized by IB to recognize a position as a Butterfly, it must match the definition of a Butterfly exactly.  These are the 3 different types of Butterfly spreads recognized by IBKR, and the margin calculation on each:

Background: 

Long Butterfly:

Two short options of the same series (class, multiplier, strike price, expiration) offset by one long option of the same type (put or call) with a higher strike price, and one long option of the same type with a lower strike price.  All component options must have the same expiration, same underlying, and intervals between exercise prices must be equal. 

There is no margin requirement on this position.  The long option cost is subtracted from cash and the short option proceeds are applied to cash.

Short Butterfly Put:

Two long put options of the same series offset by one short put option with a higher strike price and one short put option with a lower strike price.  All component options must have the same expiration, same underlying, and intervals between exercise prices must be equal. 

The margin requirement for this position is (Aggregate put option highest exercise price - aggregate put option second highest exercise price). Long put cost is subtracted from cash and short put proceeds are applied to cash.

Short Butterfly Call:

Two long call options of the same series offset by one short call option with a higher strike price and one short call option with a lower strike price. All component options must have the same expiration, same underlying, and intervals between exercise prices must be equal.

The margin requirement for this position is (Aggregate call option second lowest exercise price - aggregate call option lowest exercise price). Long option cost is subtracted from cash and short option proceeds are applied to cash.

*Please note that Interactive Brokers utilizes option margin optimization software to try to create the minimum margin requirement. However, due to the system requirements required to determine the optimal solution, we cannot always guarantee the optimal combination in all cases.  Other option positions in the account could cause the software to create a strategy you didn't originally intend, and therefore would be subject to a different margin equation. 

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