Hi all, Opening the thread again as beangrow its now integrated into Fava thanks to this plugin https://github.com/andreasgerstmayr/fava-portfolio-returns
I have a question, I'm unable to configure beangrow to treat the investment as a whole, instead of commodity by commodity and aggregating them as a single investment. What I mean is, is it possible to use beangrow to calculate returns of money inflows-outflows of a group of accounts, without taking into considerations the buys/sells, but all the money transferred into that account and its current market value? Thanks Pablo On Wednesday, June 15, 2022 at 4:58:13 AM UTC+2 Red S wrote: > Thanks for sharing! Computing and displaying rate of returns is definitely > a useful thing to have, and I'd love to see a "standard" solution for this > for Beancount and Fava. A few challenges: > > 1. Extracting cashflows turned out to be far trickier than I'd imagined > when I tried this a few years ago. I also tried hoostus' portfolio-returns > <https://github.com/hoostus/portfolio-returns>, and though the code is > clear and helpful, I found that it failed to consider several cases, > because of which it produced between small and very large errors compared > to what I was seeing at my broker, for example. > > 2. Verification that the right cashflows were used is a challenge. It's > impossible to have faith in the returns numbers without such verification. > > Martin wrote and shared beangrow <https://github.com/beancount/beangrow/> > which solves 1 and 2 above very well. See Martin's doc > <https://docs.google.com/document/d/1nPsMIunLnDvdsg6TSsd0PZb7jngojNpFlqnaX36WRp8/edit> > > for more. It also covers grouping, which you mentioned as well. Also see my > review of beangrow > <https://docs.google.com/document/d/1FsbdqbPWaupPg67kZp1CK0BoX2Ri4WhGnLa5vNTBBAs/edit#heading=h.xclbp6hivw20> > . > > Just at thought, given all of that: it would be awesome if your backend > could be made to work with beangrow instead. > > > On Friday, October 15, 2021 at 7:08:10 AM UTC-7 Phractured Blue wrote: > >> I've developed a Fava plugin that can calculate a portfolio summary. With >> several features I've not seen brought together in one place before. >> >> What I needed was a way to group my various accounts by type (Roth, >> Pre-Tax retirement, Post-Tax investment, Cash) to see the total value of >> each group. Additionally I was interested in comparing the performance of >> managed vs un-managed accounts (which is not straight-forward given the >> sporadic cash-flow increases). >> >> I settled on calculating the TWRR (Time-Weighted Rate of Return) and MWRR >> (Money-Weighted Rate of Return) along with Cost and Balance for each >> account along with the account groups. Calculating TWRR can be very >> expensive (even though the MWRR algorithm is significantly more costly) due >> to the need to calculate the balance at each cashflow point, so by default >> TWRR calculation is disabled. It takes about 15 seconds to calculate TWR >> for ~1000 cash-flow transactions on my portfolio. >> >> I'm no financial wizard, so the MWRR code is based off the >> 'portfolio-returns' project ( >> https://github.com/hoostus/portfolio-returns), and I just hope I got the >> TWRR calculation correct. I based the portfolio groups off the >> fava-classy-portfolio project ( >> https://github.com/seltzered/fava-classy-portfolio) >> >> I thought others may have a similar need, so if you there is any >> interest, the project can be found here: >> >> https://github.com/PhracturedBlue/fava-portfolio-summary >> >> -- You received this message because you are subscribed to the Google Groups "Beancount" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beancount/afd249fb-20ff-4d20-868e-ad0aecd69ee6n%40googlegroups.com.
