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PH vs WTW · data through Oct 2, 2026

PH and WTW clearly differ on 2 of 19 forces. The widest gap is momentum: in weeks when recent winners beat the stock market by 1 percentage point, PH typically moved +0.25% and WTW −0.69%.

PHWTWBars: 90% ranges. Hollow: could not be told apart from zero.Same figures in the table below.
Economic forcePHParker HannifinWTWWillis Towers Watson
Interest ratesIn weeks when the 10-year Treasury yield rose 0.25 percentage points+0.20%−0.50% to +0.89%Not distinguishable from zero−0.30%−1.8% to +1.2%Not distinguishable from zero
Inflation expectationsIn weeks when 10-year inflation expectations rose 0.25 percentage points+1.0%−1.3% to +3.4%Not distinguishable from zero+0.80%−1.5% to +3.2%Not distinguishable from zero
U.S. dollarIn weeks when the trade-weighted U.S. dollar rose 2%+0.50%−0.74% to +1.7%Not distinguishable from zero+0.76%−0.79% to +2.3%Not distinguishable from zero
Oil and energyIn weeks when the price of oil rose 10%−1.3%−1.8% to −0.70%Clear−1.0%−1.7% to −0.27%Tentative
Credit spreadsIn weeks when corporate credit spreads widened 0.25 percentage points−1.0%−2.9% to +0.83%Not distinguishable from zero−1.0%−3.8% to +1.8%Not distinguishable from zero
Short-term ratesIn weeks when the 2-year Treasury yield rose 0.25 percentage points+0.64%−1.1% to +2.4%Not distinguishable from zero−2.0%−3.7% to −0.23%Tentative
Market volatilityIn weeks when market volatility (the VIX) rose 5 points−1.0%−1.7% to −0.27%Tentative−1.1%−2.1% to −0.17%Tentative
Mortgage ratesIn weeks when the 30-year mortgage rate rose 0.25 percentage points−0.66%−1.9% to +0.60%Not distinguishable from zero+0.47%−0.68% to +1.6%Not distinguishable from zero
GoldIn weeks when the price of gold rose 5%−0.22%−1.0% to +0.56%Not distinguishable from zero+0.48%−0.31% to +1.3%Not distinguishable from zero
CopperIn weeks when the price of copper rose 5%−0.33%−0.88% to +0.22%Not distinguishable from zero+0.25%−0.33% to +0.82%Not distinguishable from zero
Natural gasIn weeks when the U.S. natural gas price (Henry Hub) rose 10%−0.02%−0.03% to 0.00%Tentative0.00%−0.03% to +0.03%Not distinguishable from zero
BitcoinIn weeks when the price of bitcoin rose 10%−0.29%−0.92% to +0.35%Not distinguishable from zero−0.14%−0.91% to +0.62%Not distinguishable from zero
Small vs large companiesIn weeks when small companies beat large ones by 1 percentage point+0.50%+0.32% to +0.69%Clear+0.16%−0.08% to +0.40%Not distinguishable from zero
Value vs growthIn weeks when value stocks beat growth stocks by 1 percentage point+0.69%+0.50% to +0.87%Clear+0.47%+0.18% to +0.77%Tentative
MomentumIn weeks when recent winners beat the stock market by 1 percentage pointClear difference+0.25%−0.01% to +0.51%Not distinguishable from zero−0.69%−1.0% to −0.34%Clear
EuroIn weeks when the euro rose 2% against the U.S. dollar−2.0%−4.0% to 0.00%Tentative+0.09%−1.3% to +1.5%Not distinguishable from zero
Japanese yenIn weeks when the yen rose 2% against the U.S. dollar−0.53%−1.3% to +0.29%Not distinguishable from zero+0.25%−1.0% to +1.5%Not distinguishable from zero
Emerging marketsIn weeks when emerging-market stocks beat the S&P 500 by 1 percentage point−0.08%−0.30% to +0.13%Not distinguishable from zero−0.45%−0.76% to −0.14%Tentative
ChinaIn weeks when Chinese stocks beat other emerging markets by 1 percentage pointClear difference0.00%−0.14% to +0.13%Not distinguishable from zero+0.40%+0.15% to +0.64%Tentative
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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