词汇:portfolio
n. 文件夹;公文包;部长职务;证券投资组合
相关场景
The next day Junior put his posters in a big folder. Do you want to see my poster portfolio?
>> 113-Toxic
>> 113-Toxic
This new vector is then normalized and scaled to booksize. The portfolio thus formed would contain equal money invested in long and short positions, and can be used to calculate that day's PnL.
>> worldquantbrain_5_vector
>> worldquantbrain_5_vector
然后,这个新向量被归一化并缩放到书本大小。由此形成的投资组合将包含投资于多头和空头头寸的相等资金,可用于计算当天的PnL。
This is done to focus on the relative returns of stocks within the group, and minimize risk exposure to the returns of the group. As a consequence of neutralization, the portfolio is half long, half short, and may guard the portfolio from market or industry shocks.
>> worldquantbrain_5_vector
>> worldquantbrain_5_vector
这样做是为了关注组内股票的相对回报,并尽量减少组内回报的风险敞口。作为中和的结果,投资组合是半长半短,可以保护投资组合免受市场或行业冲击。
Based on those daily positions, PnL is calculated and displayed. By default, the BRAIN platform will normalize your weights (according to the operations you enter) and create a portfolio of $20 million (total booksize) worth of equity. (Note that a portfolio is just a collection of securities.)
This can be better understood with the help of the PnL chart of the Alpha in our example rank(-returns)
>> worldquantbrain_4_program
>> worldquantbrain_4_program
基于这些每日位置,计算并显示PnL。默认情况下,BRAIN平台将使您的权重标准化(根据您输入的操作),并创建价值2000万美元(总账面规模)的股权投资组合。(请注意,投资组合只是证券的集合。)在我们的示例排名(-回报)中,借助阿尔法的PnL图可以更好地理解这一点
The percentage of your portfolio traded in a day (by dollar value) is called ‘turnover’. The turnover reported in simulation results is the average daily turnover over the simulation.
>> worldquantbrain_4_program
>> worldquantbrain_4_program
你的投资组合在一天内交易的百分比(按美元价值计算)称为“营业额”。模拟结果中报告的营业额是模拟过程中的平均日营业额。
For each day, the expression is evaluated and the values in the Alpha output vector represent the weights to allocate to each stock. Alpha weights are not how much you want to buy or sell, but a weighting position you would reach this day. These weights are multiplied by book size (total money invested in the portfolio) to get the dollar value held in each stock. For example, if the Alpha weight (after neutralization and scaling) for MSFT is 0.2423, then we’ll have MSFT stocks with the total value 0.2423*book size.
>> worldquantbrain_4_program
>> worldquantbrain_4_program
对于每一天,计算表达式,Alpha输出向量中的值表示分配给每只股票的权重。阿尔法权重不是你想买或卖多少,而是你今天会达到的权重头寸。这些权重乘以账面规模(投资于投资组合的总金额),得出每只股票的美元价值。例如,如果MSFT的Alpha权重(中和和缩放后)为0.2423,那么我们将拥有总价值为0.2423*书本尺寸的MSFT股票。
Step 4: Using normalized weights, the BRAIN simulator allocates capital (from a fictitious book of $20 million) to each stock to construct a portfolio.
>> worldquantbrain_4_program
>> worldquantbrain_4_program
Truncation sets the maximum weight for each stock in the overall portfolio.
>> worldquantbrain_4_program
>> worldquantbrain_4_program
截断设置了整个投资组合中每只股票的最大权重。
It calculates 1/close (using the closing price for the previous day), for each instrument in the basket "US: TOP3000" (i.e. top 3000 stocks in the US, by market capitalization). This creates a vector of 3000 values (one for each stock). This vector is then normalized, i.e. divided by the sum of its values(so that all the values sum up to 1). This creates a vector of "weights" for all the stocks, which is called a "Portfolio". Each weight represents the fraction of money invested in that stock. If our booksize is $20 Million, then the money invested in each stock is $20M x (weight of that stock in the portfolio). This is done for each day in the simulation period, and at the end of each day the total profit or loss made by our portfolio is calculated.
>> worldquantbrain_4_program
>> worldquantbrain_4_program
它为篮子“US:TOP3000”(即按市值计算的美国前3000只股票)中的每种工具计算1/close(使用前一天的收盘价)。这将创建一个包含3000个值的向量(每只股票一个值)。然后对该向量进行归一化,即除以其值之和(使所有值之和为1)。这为所有股票创建了一个“权重”向量,称为“投资组合”。每个权重代表投资于该股票的资金比例。如果我们的账面规模为2000万美元,那么投资于每只股票的金额为2000万加元x(该股票在投资组合中的权重)。这是在模拟期间的每一天完成的,在每天结束时计算我们的投资组合的总利润或亏损。
In simple terms, BRAIN uses an Alpha to create a vector of weights, with each weight corresponding to one of the stocks in the selected universe. These weights may or may not be market neutralized, as per your neutralization setting (by market, industry, sub-industry or none). This creates a portfolio for each day in the simulation period, which can then be used to calculate that day's Profit and Loss (PnL).
>> worldquantbrain_4_program
>> worldquantbrain_4_program
简单来说,BRAIN使用Alpha创建权重向量,每个权重对应于所选宇宙中的一只股票。根据您的中和设置(按市场、行业、子行业或无),这些权重可能会也可能不会被市场中和。这将为模拟期间的每一天创建一个投资组合,然后可用于计算当天的损益(PnL)。
In BRAIN, an 'Alpha' refers to a mathematical model, written as an expression, which places different bets (weights) on different instruments (stocks), and is expected to be profitable in the long run. After a user enters an Alpha expression that consists of data, operators and constants, the input code is evaluated for each instrument to construct a portfolio. Then BRAIN makes investments in each instrument for a one-day period in proportion to the values of the expression. The process repeats each day.
>> worldquantbrain_4_program
>> worldquantbrain_4_program
在BRAIN中,“阿尔法”是指一个数学模型,以表达式的形式编写,对不同的工具(股票)进行不同的押注(权重),从长远来看有望盈利。在用户输入由数据、运算符和常量组成的Alpha表达式后,对每个工具的输入代码进行评估,以构建投资组合。然后,BRAIN根据表达式的值按比例对每种工具进行为期一天的投资。这个过程每天都在重复。
Returns indicates how much profit an Alpha can generate. Since BRAIN simulations assume a long-short portfolio (which we'll explain in the next step), The total investment amount equals half of the book size.
>> worldquantbrain
>> worldquantbrain
返回值表示Alpha可以产生多少利润。由于BRAIN模拟假设了一个长短组合(我们将在下一步解释),因此总投资额等于账面规模的一半。
I'm sketching for my art portfolio.The game has a lot of action-the jumping, the scoring, the falling.
>> 2025-7-genius
>> 2025-7-genius
We select the securities that go into the cdo-portfolio and monitor the assets I do most of meryll-lynch's cdo's do you represent the investors or meryll-lynch?
>> The Big Short大空头(2015) Movie Script
>> The Big Short大空头(2015) Movie Script
Yes, sir - "Not your route, to" Venice - Aware, sir - "Now it's time to see the" Venice Hello Do you want to come with me? - Why? - Yes, of course, I certainly need to continue to Thank you for this very nice Hello in the "Venice" Madam ! Bags Thank you ! Portfolios ! You will come Thank you ! Hello Welcome to Hotel "No, Daniel," Madam Suite Lady and her husband ...We have arranged the suite and wonderful ...And the bathroom also contains Can I be briefed on the passport, please? - For - Thank you Would be proud to show you . Wing of myself here Thank you Enjoy your stay, sir - Thank you - Everything has been arranged Through specific instructions I'm sure you will not be disappointed never count towards It Princes Suite "This wing was a deliberate intent to Prince pride of the city of" Balzac Wishes you a beautiful day, sir - Thank you - Act like you're in your home ! It is a hotel really cool, do not you think this?
>> 致命伴旅 The Tourist (2010) Movie Script
>> 致命伴旅 The Tourist (2010) Movie Script
So we're agreed Allow me to go get a very special bottle of champagne vintage 1928 Permission granted Mr. Torresz left his portfolio, with a note "The song was lovely Thanks very much, I must go now" Thanks are fine, paying is better He was acting so oddly this evening Excuse me, Mr. Szabo You're so worldly, I'm just a pianist... Don't say things like "just" A lot of artists have an impresario, who gets 10%% % for their trouble Would you be my manager, for 10%% %?
>> 布达佩斯之恋Gloomy Sunday AKA The Piano Player) Movie Script
>> 布达佩斯之恋Gloomy Sunday AKA The Piano Player) Movie Script
Good morning I borrowed some sugar - I thought you'd like some in your coffee - Yes The portfolio is from my conservatory professor It was a parting gift "It's a poor pupil who doesn't overtake his master" He was convinced that one day I would be a famous composer He was wrong You might still be, one day Play for me Only if you'll sing for me I only sing when I'm alone I'm not alone now Just look at this!
>> 布达佩斯之恋Gloomy Sunday AKA The Piano Player) Movie Script
>> 布达佩斯之恋Gloomy Sunday AKA The Piano Player) Movie Script
Eddie. Hey. Listen, I'm sure you have a portfolio, but if you don't, I'd be very interested in working with you.
>> 永无止境 Limitless Movie Script
>> 永无止境 Limitless Movie Script
埃迪。嘿。听着,我相信你有一个投资组合,但如果你没有,我很有兴趣和你一起工作。
Some model girls in skimpy outfits and portfolios get out of the elevator and pass him.
>> 在某处Somewhere Movie Script
>> 在某处Somewhere Movie Script
[deGrasse Tyson] NASA can say that Mars is in our portfolio.
>> 火星一代 The Mars Generation Movie Script
>> 火星一代 The Mars Generation Movie Script
Point blank, Dean Witter needs to be managing your retirement portfolio.
>> 当幸福来敲门 The Pursuit of Happyness Movie Script
>> 当幸福来敲门 The Pursuit of Happyness Movie Script
直截了当地说,Dean Witter需要管理你的退休投资组合。