G*m
2 楼
为什么会提出这个问题呢？
以EDZ/EDC 为例，这对3X，上下幅度很大，时间价值贵。
我卖的EDZ，25的put，很快就超过了30元，所以甚是浪费。
而今，EDZ已经跌破了25，所以可能被assign。
以EDZ/EDC 为例，这对3X，上下幅度很大，时间价值贵。
我卖的EDZ，25的put，很快就超过了30元，所以甚是浪费。
而今，EDZ已经跌破了25，所以可能被assign。
B*r
3 楼
This is not the best strategy. When you sell put, you long that 3x ETF, and
you lose on volatility decay.
So instead of selling put, you sell calls on the opposite 3x ETF.
【在 G*******m 的大作中提到】
: 可以先卖put，过期了就过期了。
: 如果assign了，就卖call。
you lose on volatility decay.
So instead of selling put, you sell calls on the opposite 3x ETF.
【在 G*******m 的大作中提到】
: 可以先卖put，过期了就过期了。
: 如果assign了，就卖call。
G*m
4 楼
所以如果被assign之后，适当卖call，再到30元的时候，就变成naked call，进入
double/roll的程序。
double/roll的程序。
G*m
5 楼
在一定条件下，sell calls比较好。
比如，扶上马，送一阵。
and
【在 B**********r 的大作中提到】
: This is not the best strategy. When you sell put, you long that 3x ETF, and
: you lose on volatility decay.
: So instead of selling put, you sell calls on the opposite 3x ETF.
比如，扶上马，送一阵。
and
【在 B**********r 的大作中提到】
: This is not the best strategy. When you sell put, you long that 3x ETF, and
: you lose on volatility decay.
: So instead of selling put, you sell calls on the opposite 3x ETF.
G*m
6 楼
盲目的sell calls，很容易吃亏，除非极少量。
j*b
7 楼
Time decay is not god. Selling puts on positive 3x etf limits your loss in
severe down trend. Selling reversed 3x etf calls can get your account killed
in a bear market, in which 3x etf can easily double. Just like it did
recently.
I'm still wondering what is your alpha and beta on your 3x etf trades. I
have the impression that you have small position, and your short position is
hedged by your long position. So to evaluate your strategy on these 3x etfs
, it's really helpful if you can estimate your alpha and beta just on these
trades alone.
and
【在 B**********r 的大作中提到】
: This is not the best strategy. When you sell put, you long that 3x ETF, and
: you lose on volatility decay.
: So instead of selling put, you sell calls on the opposite 3x ETF.
severe down trend. Selling reversed 3x etf calls can get your account killed
in a bear market, in which 3x etf can easily double. Just like it did
recently.
I'm still wondering what is your alpha and beta on your 3x etf trades. I
have the impression that you have small position, and your short position is
hedged by your long position. So to evaluate your strategy on these 3x etfs
, it's really helpful if you can estimate your alpha and beta just on these
trades alone.
and
【在 B**********r 的大作中提到】
: This is not the best strategy. When you sell put, you long that 3x ETF, and
: you lose on volatility decay.
: So instead of selling put, you sell calls on the opposite 3x ETF.
G*m
8 楼
killed
is
etfs
these
【在 j***b 的大作中提到】
: Time decay is not god. Selling puts on positive 3x etf limits your loss in
: severe down trend. Selling reversed 3x etf calls can get your account killed
: in a bear market, in which 3x etf can easily double. Just like it did
: recently.
: I'm still wondering what is your alpha and beta on your 3x etf trades. I
: have the impression that you have small position, and your short position is
: hedged by your long position. So to evaluate your strategy on these 3x etfs
: , it's really helpful if you can estimate your alpha and beta just on these
: trades alone.
:
G*m
9 楼
憋死你，3分钟就够了。
G*m
10 楼
而3分钟之内，没有decay。
B*r
11 楼
There is no alpha/beta on these 3x ETFs. They are not stocks. They decay
over time and will move towards ZERO in long-run.
BTW, you never short a single ETF with all your money. You short many of
them all together, and do a little timing. And, then hold till a profit, 1
day, or 1 week, or 1 month, or one year, or 10 years.
killed
is
etfs
these
【在 j***b 的大作中提到】
: Time decay is not god. Selling puts on positive 3x etf limits your loss in
: severe down trend. Selling reversed 3x etf calls can get your account killed
: in a bear market, in which 3x etf can easily double. Just like it did
: recently.
: I'm still wondering what is your alpha and beta on your 3x etf trades. I
: have the impression that you have small position, and your short position is
: hedged by your long position. So to evaluate your strategy on these 3x etfs
: , it's really helpful if you can estimate your alpha and beta just on these
: trades alone.
:
over time and will move towards ZERO in long-run.
BTW, you never short a single ETF with all your money. You short many of
them all together, and do a little timing. And, then hold till a profit, 1
day, or 1 week, or 1 month, or one year, or 10 years.
killed
is
etfs
these
【在 j***b 的大作中提到】
: Time decay is not god. Selling puts on positive 3x etf limits your loss in
: severe down trend. Selling reversed 3x etf calls can get your account killed
: in a bear market, in which 3x etf can easily double. Just like it did
: recently.
: I'm still wondering what is your alpha and beta on your 3x etf trades. I
: have the impression that you have small position, and your short position is
: hedged by your long position. So to evaluate your strategy on these 3x etfs
: , it's really helpful if you can estimate your alpha and beta just on these
: trades alone.
:
j*b
12 楼
How can there be now alpha beta? Every investment has them.
【在 B**********r 的大作中提到】
: There is no alpha/beta on these 3x ETFs. They are not stocks. They decay
: over time and will move towards ZERO in long-run.
: BTW, you never short a single ETF with all your money. You short many of
: them all together, and do a little timing. And, then hold till a profit, 1
: day, or 1 week, or 1 month, or one year, or 10 years.
:
: killed
: is
: etfs
: these
【在 B**********r 的大作中提到】
: There is no alpha/beta on these 3x ETFs. They are not stocks. They decay
: over time and will move towards ZERO in long-run.
: BTW, you never short a single ETF with all your money. You short many of
: them all together, and do a little timing. And, then hold till a profit, 1
: day, or 1 week, or 1 month, or one year, or 10 years.
:
: killed
: is
: etfs
: these
B*r
13 楼
You cannot evaluate them using alpha/beta because they decay. they do not
move with the market, as they will move to ZERO eventually.
【在 j***b 的大作中提到】
: How can there be now alpha beta? Every investment has them.
move with the market, as they will move to ZERO eventually.
【在 j***b 的大作中提到】
: How can there be now alpha beta? Every investment has them.
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