Questions tagged [adjustments]

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2answers
75 views

Which convention drives what the result of “30 august 2017 + 6M” should be?

If I use c#'s AddMonths method, "30 august 2017 + 6M" will give "28 february 2018" (as the latter is the last day of the february month in the non leap year 2018). ...
0
votes
1answer
74 views

Keep Saved IB Historical Data Accurately Adjusted

How have you dealt with adjusting saved historical data, specifically using the IB API? As far as I can tell, currently, I need to perform the calculations described on Quandl's blog. I haven't ...
7
votes
3answers
302 views

Why is there a convexity adjustment if the payment date differs from Libor end date?

A 3 month LIBOR that fixing at $T$, paying in 3 months does not have a convexity adjustment. However, 3 month LIBOR fixing at $T$, paying in 6 months needs a convexity adjustment. How is this shown ...
14
votes
3answers
5k views

Total Return measurement paradox w/ Adjusted Close Prices

Using total return calculations is critical in developing security selection models. The standard way to measure total return is to develop a series of price-adjusted data. Investopedia describes the ...
1
vote
1answer
340 views

What are necessary adjustments to returns in CRSP?

I guess this is a pretty straight forward and basic question. I am using the entire CRSP universe from 1962-2016 and my goal is to replicate a research paper. However, I realized that the average (...
0
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2answers
2k views

Close or Adjusted Prices when Backtesting

I've been doing this for some years now, but recently, since I started fiddling around with an old pairs trading strat of mine again, when updating the databases before running the tests, I was ...
7
votes
2answers
1k views

Credit Valuation Adjustments — computation issues

I'm currently working on my Masters project related to accelerating Greeks computations for CVA on mixed interest rate portfolios. I would like to know about the status of technology for CVA and its ...
11
votes
4answers
5k views

What continous adjustment methods are firms using for futures backtesting?

There are several methods available between data vendors and associated software programs to adjust futures contract data for historical simulations. Some of the methods are: 1) Back or forward ...
29
votes
9answers
15k views

Any known bugs with Yahoo Finance adjusted close data ?

Yahoo Finance allows you to download tables of their daily historical stock price data. The data includes an adjusted closing price that I thought I might use to calculate daily log returns as a ...