Skip to main content

Questions tagged [weights]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0 votes
1 answer
32 views

Asset rate (elasticities ?) of substitution

I'm kind of a newbie in the finance research area. However, I'm working on cross-asset spillovers (transmission of shocks between assets) and my guess is that it comes from investors behaviors. ...
krauuuus's user avatar
2 votes
1 answer
239 views

When optimizing a portfolio for risk parity, can any portfolio weights turn negative?

As the title reads, when performing risk parity optimization (equal risk contribution amongst all assets to the portfolio volatility), is it possible for weights to turn negative? I understand that in ...
KaiSqDist's user avatar
  • 1,474
0 votes
0 answers
28 views

How to weight a label by two parameters?

I'm doing some labelling of time-series in preparation for ML. However I'm not sure what approach I should use if I want to weight a label by two parameters ? To keep it simple, let's say my label is <...
Little Code's user avatar
2 votes
1 answer
65 views

Problem with finding the efficient capital market line formula, getting negative variance

So my goal is to write the Capital Market line formula considering this data: $\[ \begin{array}{|c|c|c|} \hline \text{Stock 1} & \text{Stock 2} & \text{Probability} \\ \hline -15\% &...
Google Account's user avatar
1 vote
1 answer
284 views

Why stock beta is not equal to its index weight?

Index is a linear combination of stock prices with known weights. In case index is equally weighted, the weights are fixed. Beta measures stock sensitivity to index - by how much stock moves when ...
Kreol's user avatar
  • 117
0 votes
0 answers
59 views

portfolio weights based on past returns

In the academic paper Industries and Stock Return Reversals by Hameed and Mian (JFQA,2015) (see picture below), the authors describe a trading strategy based on reversal, which essentially buys past ...
user9875321__'s user avatar
2 votes
1 answer
364 views

How to Normalize Weights When Weights don't sum to 100%

I'm working on a take-home assignment for a company. They want me to calculate the return of a portfolio of securities over time, given the returns of the securities over time and the initial ...
Python Developer's user avatar
1 vote
1 answer
702 views

Calculating variance of long/short portfolio

Say I have a portfolio of stocks, stock A, stock B and stock C, with the below positions: stock A: long 100 USD stock B: long 50 USD stock C: short 200 USD How do I calculate the portfolio variance ...
Harry's user avatar
  • 11
1 vote
0 answers
76 views

Extend basket analytic solution (equal weighted) to a various weight basket, also put formula

So I coded up the solution from here: Do basket options have a closed form valuation formula? Which provides a good solution for equally-weighted underlyings under a Black model. The simplified ...
Matt's user avatar
  • 137
0 votes
0 answers
78 views

FX weights and P&L

How to correctly express basket of currencies in and index, such that P&L would align? Assume our index is 20% EURUSD and 80% GBPUSD and rates are 1.10 and 1.31 for T1 and 1.05 and 1.35 for T2. On ...
John's user avatar
  • 21
0 votes
0 answers
40 views

How to compute portfolio weight of forward contract

how would one formally calculate the portfolio weight of a Forward position? Suppose I have 100 mio portfolio. I have 50mio in Tesla shares and I have 50mio in Microsoft shares, and I enter into a 1 ...
mbison's user avatar
  • 1,578