Add 10Cap valuation

[kocielnik]

Phil once mentioned ^1 he typically values each company using three methods: MOSP, Payback Time, and 10Cap.

If two methods roughly agree on a particular value, he uses it as his buy price.

Perhaps the 10Cap method would be useful for us here too, to compare against the other two.

If we decide to add it, that should not be excessively difficult.

The 10Cap formula is ^2:

Owners earnings = Net income + Non-cash charges - Maintenance capital expenditures (CapEx)

What we have, and what remains to be obtained:

1. Net income: OK (we have net_income_history),
2. Non-cash charges (how to fetch it?),
3. CapEx (I see it under MSN Money -> Financials).

[kocielnik]

Adding example valuations from Phil's Toolbox.

They illustrate that 10-Cap and PBT valuations are not exactly the same, even though both these methods base on a similar concept: current earnings accumulating over time, without assuming future growth.

Example valuation for Coterra (CTRA):

• 10 CAP Price: 26.51
• 10 CAP Sticker Price: 53.02
• MOS Price: 46.27
• MOS Sticker Price: 92.54
• PBT Price: 21.93
• PBT Sticker Price: 43.86
• PBT at Current Price: 8.33 years

Example valuation for Nvidia (NVDA):

• 10 CAP Price: 127.43
• 10 CAP Sticker Price: 254.86
• MOS Price: 141.24
• MOS Sticker Price: 282.48
• PBT Price: 186.48
• PBT Sticker Price: 372.96
• PBT at Current Price: 5.83 years

[kocielnik]

Somehow related:

We already show quite a lot and it takes up most of the screen space. I want the end result to be glanceable and ideally fit within one monitor without scrolling (which we already don't exactly do. it's a bit long).

– https://github.com/mrhappyasthma/IsThisStockGood/issues/85#issuecomment-2293961113

I consider brevity an important aspect of IsThisStockGood.

I appreciate that IsThisStockGood shows only the key info, without clutter. I agree it should be that way.

If your experience, @mrhappyasthma, indicates this method is somehow redundant given PBT and MOSP are working fine, please let me know!