
I built a new metric called Y220. Given a company's true FCF yield today and its 3-year revenue CAGR, how long until it reaches 20% yield?
The PEG ratio tries to blend valuation and growth, but I have a few problems with it. First I use true FCF not reported earnings. Second, true FCF is too erratic year to year so I use three-year revenue CAGR as a more stable growth proxy.
So I came up with FEG: price-to-true-FCF divided by three-year revenue CAGR. But FEG still doesn't tell you when you get paid. A P/E of 10 is intuitive - you get your money back in ten years. True FCF yield is even better because you compare directly to the risk-free rate. My portfolio yields 9.9% in true FCF against a 5% treasury, which makes me happy (even happier when people talk about potential bond crises and such).
In thinking about growth: NVDA (a stock I wouldn't consider) sits at 1.65% true FCF yield today. If it keeps doubling, in four years it reaches 8%. For that moat quality, maybe you would wait four years. I wanted a way to make that calculation concrete across every name.
Y220: Years to 20% true FCF yield, compounding at current three-year revenue CAGR applied to true FCF.
Why 20%, because CMCSA sits there right now and I own some CMCSA. That's my Godfather number, the offer [yield] I can't refuse.
What the screen shows:
NVDA reaches 20% in 3.6 years if growth holds. This is tempting until you remember it's a $5 trillion company. Compounding at that rate off that base is a different bet than it was at $500 billion.
LLY is the most interesting name that fails my yield test but passes Y220. Revenue has gone parabolic and they're retiring shares aggressively. GLP-1 is early innings. The question is durability at this scale. Not a position but I watch it closely.
LYFT: I took a small starter position based on this screen. Revenue growth trajectory combined with aggressive buyback produces a Y220 that got my attention.
FDS vs. SPGI vs. ROP: I've done the direct comparison before and FDS won on organic growth and share retirement. But Y220 surfaces SPGI and ROP as legitimate quality alternatives if FDS's thesis weakens or its valuation compresses.
HCI: flattered by no major Florida hurricanes. Normalize the yield downward before trusting the Y220 number.
BRK.B: $334B in cash drags the screen. That cash is part of the point, but it makes the screener number worse than the investment case actually is.
The $50B+ scatter plot is the most useful visualization. NVDA is the outlier. Everything else clusters normally. LLY, APP, UBER, BSX, and BKNG all fail the yield test but pass Y220 with varying degrees of revenue growth durability.
Important disclaimer: these metrics are like alcohol. Use them responsibly! PEG says NVDA grows 145% per year — it's already making $159B TTM. That base gets harder. True FCF at 20% for CMCSA is great today but won't be true forever. Tools for thinking. Not verdicts.
Part II coming on smaller cap names where the alcohol warning applies double.
Full piece with scatter plots, trendlines, and the full screener tables: https://cavemanscreener.substack.com/p/my-new-godfather-metric-how-long