You bought your NVDA at 733.09 not 1096.33, that's what you have to provide
in the cost for the -2 leg.
The docs are correct.
On Sat, Jun 22, 2024 at 5:32 PM Brian Lalor <bla...@bravo5.org> wrote:
> I know this has been discussed a few times, but the docs are still
> incorrect and I’m unable to find a complete example. I’m using beancount
> v2 because Fava’s not been updated for v3, yet.
>
> NVDA recently split 10:1. I previously purchased 2 shares:
>
> option "operating_currency" "USD"
>
> 2024-02-14 open Equity:Opening-Balances
> USD
>
> 2024-02-14 open Assets:Cash
> USD
> 2024-02-14 pad Assets:Cash Equity:Opening-Balances
>
> 2024-02-14 open Assets:Stocks:NVDA
> NVDA
> 2024-02-14 commodity NVDA
>
> 2024-02-14 * "Buying some NVDA" ""
> Assets:Stocks:NVDA
> 2.00 NVDA {733.09 USD}
> Assets:Cash
>
> 2024-05-31 balance Assets:Stocks:NVDA
> 2 NVDA
> 2024-05-31 balance Assets:Cash
> 0.00 USD
>
> The pre-split stock price (per Yahoo and bean-price) was 1,096.33, and my
> Fidelity account confirms that I have 20 shares. Per the docs[1], I would
> do (I think):
>
> 2024-06-02 * "NVDA 10:1 stock split" ""
> Assets:Stocks:NVDA
> -2 NVDA {1,096.33 USD}
> Assets:Stocks:NVDA
> 50 NVDA {109.633 USD}
>
> bean-check fails, however:
>
> nvidia_split.beancount:24: No position matches
> "Posting(account='Assets:Stocks:NVDA', units=-2 NVDA,
> cost=CostSpec(number_per=Decimal('1096.33'), number_total=None,
> currency='USD', date=None, label=None, merge=False), price=None, flag=None,
> meta={'filename': 'nvidia_split.beancount', 'lineno': 29})" against balance
> (2.00 NVDA {733.09 USD, 2024-02-14})
>
> Explicitly using the lot in that transaction fails, too:
>
> 2024-06-02 * "NVDA 10:1 stock split" ""
> Assets:Stocks:NVDA -2 NVDA {733.09 USD, 2024-02-14} @ 1096.33 USD
> Assets:Stocks:NVDA 20 NVDA {109.633 USD}
>
> The error is:
>
> nvidia_split.beancount:24: Transaction does not balance: (726.4800
> USD)
>
> 2024-06-02 * "NVDA 10:1 stock split" ""
> Assets:Stocks:NVDA -2.00 NVDA {733.09 USD, 2024-02-14} @ 1096.33 USD
> Assets:Stocks:NVDA 20 NVDA {109.633 USD, 2024-06-02}
>
> So it seems the price of 1096.33 is being ignored and I’m trying to
> purchase 20 shares at 109.633 USD using 2*733.09 USD and the “gain” of
> 363.24 USD per share is being lost.
>
> What is the proper way to reflect a stock split?
>
> Thanks,
> Brian
>
> [1]:
> https://beancount.github.io/docs/trading_with_beancount.html#stock-splits
> —
> Brian Lalor (he/him)
> bla...@bravo5.org
>
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