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TDG vs PH · data through Oct 2, 2026

TDG and PH clearly differ on 2 of 19 forces. The widest gap is value vs growth: in weeks when value stocks beat growth stocks by 1 percentage point, TDG typically moved 0.00% and PH +0.69%.

TDGPHBars: 90% ranges. Hollow: could not be told apart from zero.Same figures in the table below.
Economic forceTDGTransDigm GroupPHParker Hannifin
Interest ratesIn weeks when the 10-year Treasury yield rose 0.25 percentage points−0.28%−1.1% to +0.59%Not distinguishable from zero+0.20%−0.50% to +0.89%Not distinguishable from zero
Inflation expectationsIn weeks when 10-year inflation expectations rose 0.25 percentage points+0.57%−2.4% to +3.6%Not distinguishable from zero+1.0%−1.3% to +3.4%Not distinguishable from zero
U.S. dollarIn weeks when the trade-weighted U.S. dollar rose 2%+0.77%−0.53% to +2.1%Not distinguishable from zero+0.50%−0.74% to +1.7%Not distinguishable from zero
Oil and energyIn weeks when the price of oil rose 10%−0.93%−1.8% to −0.07%Tentative−1.3%−1.8% to −0.70%Clear
Credit spreadsIn weeks when corporate credit spreads widened 0.25 percentage points−1.3%−4.0% to +1.3%Not distinguishable from zero−1.0%−2.9% to +0.83%Not distinguishable from zero
Short-term ratesIn weeks when the 2-year Treasury yield rose 0.25 percentage points−0.25%−2.4% to +1.9%Not distinguishable from zero+0.64%−1.1% to +2.4%Not distinguishable from zero
Market volatilityIn weeks when market volatility (the VIX) rose 5 points−0.03%−1.2% to +1.2%Not distinguishable from zero−1.0%−1.7% to −0.27%Tentative
Mortgage ratesIn weeks when the 30-year mortgage rate rose 0.25 percentage points−0.68%−2.2% to +0.81%Not distinguishable from zero−0.66%−1.9% to +0.60%Not distinguishable from zero
GoldIn weeks when the price of gold rose 5%−0.57%−1.4% to +0.27%Not distinguishable from zero−0.22%−1.0% to +0.56%Not distinguishable from zero
CopperIn weeks when the price of copper rose 5%+0.12%−0.33% to +0.56%Not distinguishable from zero−0.33%−0.88% to +0.22%Not distinguishable from zero
Natural gasIn weeks when the U.S. natural gas price (Henry Hub) rose 10%+0.01%−0.03% to +0.04%Not distinguishable from zero−0.02%−0.03% to 0.00%Tentative
BitcoinIn weeks when the price of bitcoin rose 10%−0.44%−1.3% to +0.40%Not distinguishable from zero−0.29%−0.92% to +0.35%Not distinguishable from zero
Small vs large companiesIn weeks when small companies beat large ones by 1 percentage pointClear difference−0.16%−0.42% to +0.10%Not distinguishable from zero+0.50%+0.32% to +0.69%Clear
Value vs growthIn weeks when value stocks beat growth stocks by 1 percentage pointClear difference0.00%−0.30% to +0.30%Not distinguishable from zero+0.69%+0.50% to +0.87%Clear
MomentumIn weeks when recent winners beat the stock market by 1 percentage point+0.35%+0.11% to +0.59%Tentative+0.25%−0.01% to +0.51%Not distinguishable from zero
EuroIn weeks when the euro rose 2% against the U.S. dollar−0.14%−1.9% to +1.6%Not distinguishable from zero−2.0%−4.0% to 0.00%Tentative
Japanese yenIn weeks when the yen rose 2% against the U.S. dollar−0.45%−1.2% to +0.34%Not distinguishable from zero−0.53%−1.3% to +0.29%Not distinguishable from zero
Emerging marketsIn weeks when emerging-market stocks beat the S&P 500 by 1 percentage point+0.05%−0.21% to +0.31%Not distinguishable from zero−0.08%−0.30% to +0.13%Not distinguishable from zero
ChinaIn weeks when Chinese stocks beat other emerging markets by 1 percentage point−0.04%−0.16% to +0.09%Not distinguishable from zero0.00%−0.14% to +0.13%Not distinguishable from zero
Each figure is the stock's typical move in a week when the force moved by the stated amount, after accounting for the stock market, with its 90% range beneath. Grey figures could not be told apart from zero. A row is marked a clear difference only when the two 90% ranges do not overlap.

This describes the past, and it is not a forecast. Relationships change, and nothing here is a recommendation to buy, sell or hold any security.

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