ｂａｔｔｌｅ ｐｌａｎ

老黄

本帖为了赚积分。不要太当真。

年底已经到了。股市最有可能的两种走法是 1.向上 2 先上后下。
根据今天的数据看，短期下跌的可能性不大了，但是如果跌的话，会比较急。
所以很多人买PUTS，DEC and JAN。
这两天一直没有动。今天是应该BUY DIP的，但没有做。

So what am I thinking of doing?

Setup bullish option play.
reduce stock long/DT out long.
try not to have too much delta

CoolMax

Diffusion

手上没钱，心里发慌。
尽我所能加一点。

soulvirus

10 gold to you

Wolf

ranchgirl

1# 老黄

"try not to have too much delta"

Sorry, I don't understand, what is delta here?

Thanks!

老黄

1# 老黄

"try not to have too much delta"

Sorry, I don't understand, what is delta here?

Thanks!
ranchgirl 发表于 2009-12-11 22:35

看贴，不评分。

哼，不答

padme

看贴，不评分。

哼，不答
老黄 发表于 2009-12-11 22:41

我帮她给你评分了，你答吧。答完了自然还有分送。

老黄

我帮她给你评分了，你答吧。答完了自然还有分送。
padme 发表于 2009-12-12 10:22

I assume some of you may confuse delta with beta.

First, quote from an online definition.

Beta: a measure of how closely the movement of an individual stock tracks the movement of the entire stock market.  

Delta: The Delta is a measure of the relationship between an option price and the underlying stock price. For a call option, a Delta of .50 means a half-point rise in premium for every dollar that the stock goes up. For a put option contract, the premium rises as stock prices fall. As options near expiration, in the money contracts approach a Delta of 1.


Beta is often calculated by regression. For a portfolio, the total beta is the sum of the betas of each stock.

From the definition, we know delta is only about one particular stock and its options. In my case, the plan is only about SPY and its options, so using 'delta' is proper. However, since SPY is tracking market index, it won't be too wrong if I say 'beta'.

ranchgirl

Diver

本帖为了赚积分。不要太当真。

年底已经到了。股市最有可能的两种走法是 1.向上 2 先上后下。
根据今天的数据看，短期下跌的可能性不大了，但是如果跌的话，会比较急。
所以很多人买PUTS，DEC and JAN。
这两天 ...
老黄 发表于 2009-12-11 19:20