m********0
发帖数: 2717 | 1 trader1688上也有人提过pair trading，并有人表示怀疑。
这个idea是80年代摩根斯坦利的人提出来的idea，然后finance行业的人又比较liquid
，跳几次
槽，这个idea就逐渐流行起来了。
基本的想法是，high correlated的two stocks，spread比较稳定，假如某个时刻出现
了比较
背离average的情况，基本上是可以认为一个overprice，一个underprice，然后long那个
underprice的，short overprice的symbol，以期spread恢复至正常。
这里overprice和underprice都是相对而言，加入两个symbol都涨了，期望的是long那
个涨的
比short的那个幅度更大，spread还是可以按照期望发展，反之亦然。
我测试过NASDAQ的2700多个symbol的测试，算Spearman和Pearson的correlation都用过，
然后用程序scan了一遍所有的symbol之间，两两trade会有什么结果，entry和exit的参
数当时
都是用了常数，但是都是在很大的范 |
|
|
M*****8
发帖数: 17722 | 3
...............
*** NOTE: PRICE TARGETS & CALCULATIONS ARE APPROXIMATE ***
(Minimum Cash Unit is $1000. Simply multiply for large sums.)
FORECAST FOR TICKER SYMBOL: PCLN AS OF 20111107 (YYYYMMDD)
CLOSING PRICE ON 20111107 was 517.5000
STOCK RATING: MODESTLY BEARISH
Short-Term Price Potential is DOWN:-15.9779 (-3.10%)
Short-Term Price Target: 501.5221
At Price Target, profit is 30.8752 on $1000 investment. (+3.09%)
Close out >= half of your short position at about 501.5221
There is a small chan... 阅读全帖 |
|
M*****8
发帖数: 17722 | 4
............................
*** NOTE: PRICE TARGETS & CALCULATIONS ARE APPROXIMATE ***
(Minimum Cash Unit is $1000. Simply multiply for large sums.)
FORECAST FOR TICKER SYMBOL: SAM AS OF 20111108 (YYYYMMDD)
CLOSING PRICE ON 20111108 was 99.7600
STOCK RATING: ESSENTIALLY NEUTRAL
Short-Term Price Potential is DOWN: -0.1523 (-0.20%)
Short-Term Price Target: 99.6077
At Price Target, profit is 1.5267 on $1000 investment. (+0.15%)
Close out >= half of your short position at about 99.6077
There ... 阅读全帖 |
|
M*****8
发帖数: 17722 | 5
...................
*** NOTE: PRICE TARGETS & CALCULATIONS ARE APPROXIMATE ***
(Minimum Cash Unit is $1000. Simply multiply for large sums.)
FORECAST FOR TICKER SYMBOL: MRVL AS OF 20111111 (YYYYMMDD)
CLOSING PRICE ON 20111111 was 14.9200
STOCK RATING: ESSENTIALLY NEUTRAL
Short-Term Price Potential is DOWN: -0.2317 (-1.60%)
Short-Term Price Target: 14.6883
At Price Target, profit is 15.5295 on $1000 investment. (+1.55%)
Close out >= half of your short position at about 14.6883
There is a sma... 阅读全帖 |
|
M*****8
发帖数: 17722 | 6
..................
提醒：目前ＭＭ对多数股票是打击, i.e. Bear Raid。
*** NOTE: PRICE TARGETS & CALCULATIONS ARE APPROXIMATE ***
(Minimum Cash Unit is $1000. Simply multiply for large sums.)
FORECAST FOR TICKER SYMBOL: BTU AS OF 20111122 (YYYYMMDD)
CLOSING PRICE ON 20111122 was 34.5900
STOCK RATING: MODESTLY BULLISH
Short-Term Price Potential is UP: 1.0917 ( 3.20%)
Short-Term Price Target: 35.6817
At Price Target, profit is 31.5611 on $1000 investment. (+3.16%)
Close out >= half of your long position at abou... 阅读全帖 |
|
M*****8
发帖数: 17722 | 7
...............
*** NOTE: PRICE TARGETS & CALCULATIONS ARE APPROXIMATE ***
(Minimum Cash Unit is $1000. Simply multiply for large sums.)
FORECAST FOR TICKER SYMBOL: PCLN AS OF 20111107 (YYYYMMDD)
CLOSING PRICE ON 20111107 was 517.5000
STOCK RATING: MODESTLY BEARISH
Short-Term Price Potential is DOWN:-15.9779 (-3.10%)
Short-Term Price Target: 501.5221
At Price Target, profit is 30.8752 on $1000 investment. (+3.09%)
Close out >= half of your short position at about 501.5221
There is a small chan... 阅读全帖 |
|
M*****8
发帖数: 17722 | 8
............................
*** NOTE: PRICE TARGETS & CALCULATIONS ARE APPROXIMATE ***
(Minimum Cash Unit is $1000. Simply multiply for large sums.)
FORECAST FOR TICKER SYMBOL: SAM AS OF 20111108 (YYYYMMDD)
CLOSING PRICE ON 20111108 was 99.7600
STOCK RATING: ESSENTIALLY NEUTRAL
Short-Term Price Potential is DOWN: -0.1523 (-0.20%)
Short-Term Price Target: 99.6077
At Price Target, profit is 1.5267 on $1000 investment. (+0.15%)
Close out >= half of your short position at about 99.6077
There ... 阅读全帖 |
|
M*****8
发帖数: 17722 | 9
...................
*** NOTE: PRICE TARGETS & CALCULATIONS ARE APPROXIMATE ***
(Minimum Cash Unit is $1000. Simply multiply for large sums.)
FORECAST FOR TICKER SYMBOL: MRVL AS OF 20111111 (YYYYMMDD)
CLOSING PRICE ON 20111111 was 14.9200
STOCK RATING: ESSENTIALLY NEUTRAL
Short-Term Price Potential is DOWN: -0.2317 (-1.60%)
Short-Term Price Target: 14.6883
At Price Target, profit is 15.5295 on $1000 investment. (+1.55%)
Close out >= half of your short position at about 14.6883
There is a sma... 阅读全帖 |
|
M*****8
发帖数: 17722 | 10
..................
提醒：目前ＭＭ对多数股票是打击, i.e. Bear Raid。
*** NOTE: PRICE TARGETS & CALCULATIONS ARE APPROXIMATE ***
(Minimum Cash Unit is $1000. Simply multiply for large sums.)
FORECAST FOR TICKER SYMBOL: BTU AS OF 20111122 (YYYYMMDD)
CLOSING PRICE ON 20111122 was 34.5900
STOCK RATING: MODESTLY BULLISH
Short-Term Price Potential is UP: 1.0917 ( 3.20%)
Short-Term Price Target: 35.6817
At Price Target, profit is 31.5611 on $1000 investment. (+3.16%)
Close out >= half of your long position at abou... 阅读全帖 |
|
C*******o
发帖数: 119 | 11 大牛们, 是不是这样:
1)直接买:
通过Scottrade,Fidelity之类的能直接买吗? Symbol怎么查? A股都是数字symbol,
但这些broker一般都是用英文symbol加市场symbol.
2)买ETF:
买哪一个?
小弟比较初级,谢谢。 |
|
f**********n
发帖数: 258 | 12 TradeStation开户半年的交易记录 只获利10%
Date Symbol Cusip Side Qty Price Principal Comm
Other Fees Net Amt Order Id
05/18/2016 SPY 78462F103 Buy 100 $204.49 ($20,448.90) (
$1.00) $0.00 ($20,449.90) 482726521
Trades - 17436393 -- Margin - Active - 6/1/2016 to 9/1/2016
Total: 10 Record(s) 11 Page(s)
Date Symbol Cusip Side Qty Price Principal Comm
Other Fees Net Amt Order Id
06/14/2016 SPY 160617C209.5 78462F}F)... 阅读全帖 |
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S*****e
发帖数: 6676 | 13 FIFA是有规定禁止球员、球迷在比赛时使用任何政治色彩的东西的
A statement from FIFA read: "England has been fined CHF 45,000 for several
incidents in the framework of the England v Scotland match, including the
display by the host association, the English team and spectators of a
political symbol and several cases of spectator misconduct.
"Scotland, as the visiting association, has been fined CHF 20,000 for the
display of the same political symbol and cases of misconduct committed by
its own group of spectators.
"Wales has b... 阅读全帖 |
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x*****p
发帖数: 1707 | 14 在初等数论中，一个重要的问题是判断一个数a是另一个数p的二次剩余或者二次非剩余
，而Legendre symbol和Jacobi symbol就是用来作判断的。
对于Legendre symbol (a/p), 如果a是p的二次剩余，则(a/p)=1；如果a是p的二次非剩
余，则(a/p)=-1。
对于奇素数p来说，它的有限域Zp有p-1个(偶数个)非零的数。其中恰好有一半是p的二
次剩余，而另一半是p的二次非剩余。用这个性质，就可以对一个非常大的奇数做素性
判断。而Legendre symbol用二次互反律可以在多项式时间内完成计算，于是可以借助
计算机来找
非常大的素数。RSA公钥体系中的大数就是如此产生的。 |
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d**********o
发帖数: 1321 | 15 hw3b c-.y file
上面这一楼贴了载止hw3b deadline时我match的结果（也就是老师可以以这些不match
的ERROR为借口不给后来我补上的成绩），但是因为当时我还是没有写完，后来感恩节
期间就接着又写了一些，而且hw5是based on hw3 & hw3b的基础上（当我hw5是based
on更好的hw3的结果时，我应该可以得更多的分吧）。
hw4因为写得比较顺利，就不曾保留任何交上去作业的output，没有什么一目了然的结
果是我可以贴在这里的。原本我是想要把自己最的一次作业hw5贴出来的，但那已经是
一个完整的compiler，而且以后我还需要用自己的course project来找工作，所以一定
就不贴最终结果了。那就贴一个hw3b的c-.y文件吧，它集中的hw1、hw2、hw3、 hw3b的
结果，是我自己hw3b *.y文件的最完整版本。这些作业里面也有很多机关一一人为增加
的难度，比如那六七个IO相关的function，不仅traverse tree、build syntax tree的
时候会成为一个考点（把它们作为一个node连在syntax... 阅读全帖 |
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d**********o
发帖数: 1321 | 16 hw3b c-.y file
上面这一楼贴了载止hw3b deadline时我match的结果（也就是老师可以以这些不match
的ERROR为借口不给后来我补上的成绩），但是因为当时我还是没有写完，后来感恩节
期间就接着又写了一些，而且hw5是based on hw3 & hw3b的基础上（当我hw5是based
on更好的hw3的结果时，我应该可以得更多的分吧）。
hw4因为写得比较顺利，就不曾保留任何交上去作业的output，没有什么一目了然的结
果是我可以贴在这里的。原本我是想要把自己最的一次作业hw5贴出来的，但那已经是
一个完整的compiler，而且以后我还需要用自己的course project来找工作，所以一定
就不贴最终结果了。那就贴一个hw3b的c-.y文件吧，它集中的hw1、hw2、hw3、 hw3b的
结果，是我自己hw3b *.y文件的最完整版本。这些作业里面也有很多机关一一人为增加
的难度，比如那六七个IO相关的function，不仅traverse tree、build syntax tree的
时候会成为一个考点（把它们作为一个node连在syntax... 阅读全帖 |
|
|
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e*******d
发帖数: 461 | 19 【 以下文字转载自 Prose 讨论区 】
发信人: echofield (飞), 信区: Prose
标 题: Valerian Ocean Chapter 6 (2)
发信站: BBS 未名空间站 (Fri Aug 12 01:34:03 2011, 美东)
Three days later, I got an address from my dad. I didn’t know where he got
that address. Did he just randomly grab a person on the street and asked for
his or her address? It was an address for someone lives in the public
housing of Changhong electric factory. I immediately realized my dad's
intention. He wanted me to interview a factory worker. Few of those worke... 阅读全帖 |
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e*******d
发帖数: 461 | 20 Three days later, I got an address from my dad. I didn’t know where he got
that address. Did he just randomly grab a person on the street and asked for
his or her address? It was an address for someone lives in the public
housing of Changhong electric factory. I immediately realized my dad's
intention. He wanted me to interview a factory worker. Few of those workers
had good educations. They almost spent their whole life in the factory. The
factory had its own dinning places. The factory provid... 阅读全帖 |
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G******e
发帖数: 9567 | 21 Harold W. Attridge:
The Lillian Claus Professor of New Testament Yale Divinity School
SYMBOLS OF THE GOSPELS
Some of the symbols that Irenaeus uses of the gospels have come to be quite
traditional and quite influential in the the symbolism associated with the
gospels. So the ox, the lion, the winged man and the eagle that [are] used
for the evangelists in many contexts, both artistic and literary, go back to
Irenaeus.
The eagle is the usual symbol for the Gospel of John, because his thought is
s |
|
R*o
发帖数: 3781 | 22 The concept of a burning Hell where people are tortured eternally, is often
thought of as a Bible teaching. It isn't. Rather, the whole concept of a Hel
l as people see it today, where the bad are sent to an underground world tha
t is ruled by an evil God, comes from a misunderstanding of the pagan Greek
Mythology of Hades, the River Styx, and the God Pluto. For if you read Greek
mythology, you'll see that Hades was never a place of torture, but simply t
he place where the dead go to be judged. ... 阅读全帖 |
|
o****i
发帖数: 1706 | 23 It needs to parse function in Lisp format. For example...
(+ 3 4) or (* 3 4 2)
I got a something like below, but it only can parse experession like (3 + 4)
, any advice to improve this? Thanks...
mulop = do{ symbol "*"; return (SExp "*")}
<|> do{ symbol "/"; return (SExp "/")}
addop = do{ symbol "+"; return (SExp "+")}
<|> do{ symbol "-"; return (SExp "-")}
anInt = do d <- digits
ws
return $ IntExp (read d)
anSym = oneOf ['-','*','+','/',':',''','?','>','<','=']... 阅读全帖 |
|
S*A
发帖数: 7142 | 24 You need to make sure your module is using the
the xenomai kernel as the Kbuild source kernel.
Also you need to make sure the symbol you used in
the xenomai kernel is exported as kernel symbols.
You can try to locate the symbol in /proc/kallsyms.
If it is not in there, then you need to export those symbol
in the kernel first before they can be used in the module. |
|
S*A
发帖数: 7142 | 25 好，我门现在总结一下，你现在也承认这个内核的开源游戏规则就是 GPL。
问题事在 GPL 规则下如何可以通过 non-derived work 来不发布源代码。
基本上，你的理解 “driver is non derivative work subset" 是非常错误的。
首先，你能举例那些驱动是从 windows copy 过来的？写 linux 驱动的
人很多是没有访问到 windows 驱动的，甚至不是厂商的员工, 连完整的
硬件 Spec 都没有，更不用说 Copy 了。
我給你举个例子，Intel 的 GPU driver team, 和 Windows 是完全不同的
team， 相互不能看到代码。完全没有代码共享。而 Intel 的 GPU driver，
用到了非常深入的，只有 Linux 才有的内存访问界面，因为 Intel 没有自己
的显卡内存。有很多内存 swapping 的代码是专门针对 Intel 这个显卡改动
的，所以 Intel 的显卡驱动必须要 cover 在 GPL 下面。
derived work 是不好划分的一件事，我时间不多就不详细说了。
一些简... 阅读全帖 |
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d*********8
发帖数: 2192 | 26 man dlopen
Glibc extensions: dladdr() and dlvsym()
Glibc adds two functions not described by POSIX, with prototypes
#define _GNU_SOURCE
#include
int dladdr(void *addr, Dl_info *info);
void *dlvsym(void *handle, char *symbol, char *version);
The function dladdr() takes a function pointer and tries to resolve
name and file where it is located. Information is stored in the Dl_info
strucâ€
ture:
typedef struct {
... 阅读全帖 |
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o****i
发帖数: 1706 | 27 It need to parse function in Lisp format. For example...
(+ 3 4) or (* 3 4 2)
I got a something like below, but it only can parse experession like (3 + 4)
, any advice to improve this? Thanks...
mulop = do{ symbol "*"; return (SExp "*")}
<|> do{ symbol "/"; return (SExp "/")}
addop = do{ symbol "+"; return (SExp "+")}
<|> do{ symbol "-"; return (SExp "-")}
anInt = do d <- digits
ws
return $ IntExp (read d)
anSym = oneOf ['-','*','+','/',':',''','?','>','<','=']
... 阅读全帖 |
|
n*******e
发帖数: 62 | 28 Abstract
1 – “Rose is a rose is a rose is a rose”, C# is case sensitive, that
sucks.
2 – The Switch clause
3 – Event-Handling code
4 –Stupid symbols
5 – Autocorrection in Visual Basic actually works
6 – Lack of supported functions, such as:IsNumeric,PMT, etc. but they don’
t exist in C#.
7 – That wretched semi-colon.Why do I have to end every line in C# with a
semi-colon?
8 – Arguments and variables.The order of words in a C# variable declaration
is wrong.the C# method of having to prefix argume... 阅读全帖 |
|
k**********g
发帖数: 989 | 29 来自主题: Programming版 - 算法求助！ 弱问，无无者飘过 (zero wireless comm experience)
Is there a likelihood model for the mu and sigma of each agent?
The search space is something like this:
| Agent 1 | Agent 2
------------------------------------------------------------------
Symbol A | Percent of A emitted by 1 | Percent of A emitted by 2
------------------------------------------------------------------
Symbol B | Percent of B emitted by 1 | Percent of B emitted by 2
-------------------------------------... 阅读全帖 |
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l******o
发帖数: 25 | 30 what does the following error msg mean?
set LD_LIBRARY_PATH ../usrlib
export LD_LIBRARY_PATH
mkfontdir .
ld.so.1: mkfontdir: fatal: relocation error: file /usr/openwin/server/lib/libfont.so.1: symbol serverClient: referenced symbol not found
t.so.1: symbol serverClient: referenced symbol not found
*** Signal 9
make: Fatal error: Command failed for target `fonts.dir'
how can I do?
thank you. |
|
s****b
发帖数: 21 | 31 Assign a shortcut key to a symbol
On the Insert menu, click Symbol.
Click the tab with the symbol or character you want.
Click the symbol or character you want.
Click Shortcut Key.
In the Press new shortcut key box, type the key combination you want to use.
Click Assign. |
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x*****d
发帖数: 704 | 32
1.
自己按照GSEA网站上gct的格式把你的RNA-seq改成gct格式，比如这样
#1.2
20000 6
Symbol Description WT1 WT2.。。。
ACTN1 Actin1 100 100
你可以用FPKM来做GSEA。gene symbol必须大写！因为GSEA用的gene set都是大小写敏
感，而且全是大写的。
2.不是必须的
3.不需要选，自己collapse by gene symbol，除掉duplicate，然后在GSEA界面那里吧
collapse的选项关掉
4.如果你的gene name是official gene symbol的话那就是MSigDB的gene name，个别
gene name可能不一样，这个你得自己去鉴别。实际做的话影响不大。 |
|
F*M
发帖数: 1861 | 33 The 54 Mbps is the physical layer information bit rate.
Here is the computation procedure:
Physical layer modulation symbol rate = symbol rate per sub-carrier x number
of carriers = 250kbps x 48 = 12 Msps
Physical layer coded symbol rate (with binary codes) = Moulation symbol rate
x modulation rate = 12 Msps x log2(64) = 72 Mcps
Physical layer information bit rate = 72 Mcps x (3/4) = 54 Mbps.
The DLL throughput would be less due to the need to strip off additioinal
overhead (~10%). |
|
C******e
发帖数: 1850 | 34 If a communications receiver has a DAC sampling at frequency fs, what is
the maximum bit rate can this receiver receive in theory? My answer is
fs/2. The reason is as follows. Suppose the transmitted symbol has N
bits(e.g. N=2 for QPSK), then there are 2^N constellation states. That
means the receiver must have at least a resolution of 2^N states per
sample, therefore, the symbol rate is limited by fs/(2^N), with this
symbol rate and N bits per symbol, the bit rate is N*fs/(2^N). The maximum
of |
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|
w********h
发帖数: 12367 | 36 经常看文章中有谱图用line+symbol这种方式表达，
可是我用line+symbol的时候symbol太密集了，
怎么调这个symbol让它每间隔多少个点出现一次？ |
|
A***e
发帖数: 130 | 37 The main point is the non-deterministic: we can construct
the following PDA:
for each input symbol, depending on what it is and what's the current state
of the PDA, we can do the following actions (with the help of two flags:
A: having passed symbol c or not, and B: having passed the particular symbol for
comparison or not):
1) if it's not c, and the current state has neither flag A nor B set then:
(a) push it onto the stack
-or-
(b) store the symbol into the current state a |
|
s*****e
发帖数: 9 | 38 %MACRO LOOP1 (INPUT);
%LOOP2;
%PUT DATE IS &DATE;
%MEND;
%MACRO LOOP2;
CALL SYMPUT('DATE', '28SEP1998');
%MEND;
%LET DATE=31DEC2006;
% LOOP1(&DATE)
What message is generated by %PUT?
A. DATE IS 31DEC2006 read from global symbol table.
B. DATE IS 28SEP1998 read from local symbol table of LOOP1
C. DATE IS 28SEP1998 read from local symbol table of LOOP2
D. DATE IS 28SEP1998 read from global symbol table.
应该是那个答案，为什么呢？谢谢 |
|
s*****n
发帖数: 2174 | 39 good point. 我那个code复杂度是nlog(n)级的, 你那个的本质是n级的. 其中n是平均每个symbol对应的数据长度.
不过这两个的速度优劣要看数据的情况. 如果一个symbol对应的数据较多, 第一种solution里面的排序的确比较慢. 如果对应的数据较少第二种solution里面独立算sign(), max(), 相乘, 取== 的成本比较高.
实际复杂度, 第一个solution 大概是 nlog(n), 第二个solution是4n.
当log(n) > 4 也就是 n > 56 的时候, 第二个快, 反之第一个快.
看实测:
### 26个symbol, 总共1000个数据, n大约等于40, 第一种稍快
> data <- data.frame(
+ symbol = sample(LETTERS[1:26], size = 1000, replace = T),
+ fold = sample(-15:15, size = 1000, replace = T)
+ )
>
> system.time(for (i in 1:1000)
+ te |
|
d*******1
发帖数: 854 | 40 实际情况恰恰相反, 我是symbol极多, 但是每个symbol的duplication较少, 最多2,3个
. 请看以下记录(前面两行是读进CSV DATA):
> glist<- read.csv('all_diff_exp_list.csv',header=TRUE)
> nmglist<- glist[glist$SYMBOL !='',]
>
> system.time(
+ songkun<- tapply(nmglist$fold, nmglist$SYMBOL,
+ function(x) x[order(abs(nmglist$fold), decreasing = T)][1])
+ )
user system elapsed
215.44 1.27 218.31
> songkun<- as.matrix(songkun)
> tail(songkun)
[,1]
ZYG11A NA
ZYG11B NA
ZYG11BL NA
ZYX NA
ZZEF1 NA
ZZZ3 NA |
|
f*****k
发帖数: 110 | 41 对第一个macro有疑问，特请教Actuaries。
这个macro少了‘%local i;’那么这个i就是在global symbol table 里了么？我记得
如果%let出现在macro里面时，其所定义的macro variable 仍然是在local symbol
table里。如果我是对的话，‘%local i;’语句用不用都无所谓啊。
另外，如何查看global symbol table 和 local symbol table 啊？ |
|
s*********e
发帖数: 944 | 42 74. The following SAS program is submitted:
%macro one(input);
%two
%put the value is &date;
%mend;
%macro two;
data _null_;
call symput('date', '12SEP2008');
run;
%mend;
%let date = 31DEC2006;
%one(&date)
What is the result when the %PUT statement executes?
A.A macro variable DATE with the value 12SEP2008 is retrieved from the
global symbol table.
B.A macro variable DATE with the value 31DEC2006 is retrieved from the
global symbol table.
C.A macro variable DATE with the value 12SEP2008 is retri... 阅读全帖 |
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s*******2
发帖数: 499 | 43 The following SAS program is submitted: %macro one(input);
%two;
%put the value is &date; %mend;
%macro two; data _null_;
call symput('date','12SEP2008'); run;
%mend;
%let date=31DEC2006;
%one(&date)
What is the result when the %PUT statement executes.?
A. A macro variable DATE with the value 12SEP2008 is retrieved from the
local symbol table for the ONE macro
B. A macro variable DATE with the value 12SEP2008 is retrieved from the
local symbol table for the TWO macro
C. A macro variable... 阅读全帖 |
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y*****l
发帖数: 5997 | 46 ☆─────────────────────────────────────☆
n202 (做猪就要做肥猪) 于 (Sun Oct 17 21:09:15 2010, 美东) 提到:
发信人: n202 (做猪就要做肥猪), 信区: Stockcafeteria
标 题: 抛砖：发个稀土的帖子
发信站: BBS 未名空间站 (Mon Oct 4 10:33:23 2010, 美东)
从今年一月份到7月份前，稀土金属（Rear Earth Elements, REE）的价格涨了2-3倍左
右。但在7月份以后，产量占世界的97%以上（也有说95%的）的中国政府对稀土的限产
和出口控制的进一步加强，导致价格进一步飚升到年初价格的7倍左右。中国的稀土资
源分布和有关的开采方法，感兴趣的版友请自己查询。中国政府的目的至少有三个：减
少国内稀土企业互相恶性压价和得到世界范围的定价权；提高稀土产品的附加值（就是
减少出口原料矿，增加稀土深加工产品的出口，比如零部件）；吸引外资和国外先进技
术与中国本土企业结合，从而提高能效和创造就业。由于中国稀土矿的“白菜价格”，
一些国家陆续停止了稀... 阅读全帖 |
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y*****l
发帖数: 5997 | 47 ☆─────────────────────────────────────☆
n202 (做猪就要做肥猪) 于 (Sun Oct 17 21:09:15 2010, 美东) 提到:
发信人: n202 (做猪就要做肥猪), 信区: Stockcafeteria
标 题: 抛砖：发个稀土的帖子
发信站: BBS 未名空间站 (Mon Oct 4 10:33:23 2010, 美东)
从今年一月份到7月份前，稀土金属（Rear Earth Elements, REE）的价格涨了2-3倍左
右。但在7月份以后，产量占世界的97%以上（也有说95%的）的中国政府对稀土的限产
和出口控制的进一步加强，导致价格进一步飚升到年初价格的7倍左右。中国的稀土资
源分布和有关的开采方法，感兴趣的版友请自己查询。中国政府的目的至少有三个：减
少国内稀土企业互相恶性压价和得到世界范围的定价权；提高稀土产品的附加值（就是
减少出口原料矿，增加稀土深加工产品的出口，比如零部件）；吸引外资和国外先进技
术与中国本土企业结合，从而提高能效和创造就业。由于中国稀土矿的“白菜价格”，
一些国家陆续停止了稀... 阅读全帖 |
|
y*****l
发帖数: 5997 | 48 【 以下文字转载自 Stock 讨论区 】
发信人: yaokarl (大象), 信区: Stock
标 题: [合集] back testing result of my swing trading system
发信站: BBS 未名空间站 (Wed Jul 13 08:06:21 2011, 美东)
☆─────────────────────────────────────☆
SwingMan (I Love Swing) 于 (Sun May 22 16:35:36 2011, 美东) 提到:
stock list: over 4000 symbols from Yahoo finance,
during testing, delisted symbols are not considered.
Volume: 30 day average vol >500000 during the trading
Price: stock price>6 during trading
long only system, holding period from 2 to 7 t... 阅读全帖 |
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m***c
发帖数: 499 | 50 去找了一把，呵呵
The circle with an arrow attached at roughly the two o'clock position stands
for Mars (Ares in Greek), the god of war, and a strong symbol of masculinit
y. Thus, this symbol has come to stand for men. The circle with the cross ex
tending down stands for Venus (Aphrodite), the goddess of love and beauty, a
nd a symbol of femininity. Thus, the Venus symbol represents women |
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