Glossary term
Numerator Regime
A Closelook term for a market phase where index returns come from the numerator — earnings and physical output growing — rather than the denominator, multiple expansion driven by falling rates or share buybacks. The two regimes reprice "expensive" differently.
Numerator vs Denominator
Every equity return can be decomposed into two parts: growth in the underlying number (revenue, earnings, physical capacity) and growth in the multiple the market pays for that number. A denominator regime is built on the second part — cheap debt funds buybacks, share count falls, EBITDA multiples expand, and price rises without the underlying business necessarily producing more. It requires nothing physical; it recycles cash into equities. A numerator regime inverts that: capex rises, depreciation rises, free cash flow gets messier, buyback activity slows, and the return comes from actually building more capacity — power, compute, physical output — rather than from re-rating the same capacity at a higher multiple. The market shifts from optimizing the denominator to building the numerator.
Why It Changes What "Expensive" Means
A stock's multiple can look stretched by the same math in both regimes, but the two situations are not equivalent. In a denominator regime a rich multiple is usually paying for financial engineering that can reverse — rates rise, buybacks stop, the multiple mean-reverts toward its historical range. In a numerator regime a rich multiple can be paying for a physical bottleneck that has not yet cleared — the underlying number is expanding fast enough that today's multiple compresses quickly on its own if the growth holds, without the price needing to fall at all. Reading which regime is currently live changes whether a standard valuation screen should be read as a warning sign or as a false negative that misses where the growth is actually coming from.
Telling the Regimes Apart
The tell sits in the balance sheet and the input markets, not in the price chart alone. Rising capex intensity, rising depreciation, tightening physical inputs — power, packaging, skilled construction labor — alongside decelerating buyback activity and rising debt discipline all point toward a numerator phase being underway. Falling capex, rising buybacks, and multiple expansion running against flat physical throughput point toward a denominator phase instead. Closelook reads this distinction through the Numerator Regime heresy, which frames the current AI build-out as a shift from the buyback-era denominator machine to a capex-era numerator machine, and traces where the resulting pricing power lands as the binding constraint migrates step by step along the supply chain.