Posted By RichC on August 11, 2026
For much of the post-Global Financial Crisis era, equity investors enjoyed a structural tailwind. Low interest rates, subdued inflation and steady growth created a favorable liquidity and supply/demand backdrop. Companies borrowed cheaply, bought back 
shares aggressively, and pursued takeovers that further reduced the public float, according to Interactive Brokers trader insight. The net supply of shares shrank for years, mechanically boosting per-share metrics and amplifying the effect of passive inflows.
That regime is shifting. The same forces that once provided reliable support now risk becoming headwinds—or at least far less dependable tailwinds.
Policy rates sit in the mid-3% range, and inflation has remained sticky. Real rates are positive again. The cost of capital is higher, and the era of near-zero rates and financial repression is over. Markets can no longer assume every dip will be met with aggressive monetary easing.
On the supply side, buybacks remain large and still outweigh new issuance in many forecasts. Yet equity supply is rising. AI-related capital needs have driven a sharp increase in follow-on offerings and other issuance. Hyperscalers are directing cash into massive capital spending rather than solely into share repurchases. The long period of de-equitization is easing; net supply is becoming less negative and could turn positive.
Liquidity itself is more volatile. The ultra-abundant, low-volatility conditions of the 2010s have given way to a more temperamental environment of supply shocks, fiscal competition for capital, and frequent policy trade-offs.
None of this guarantees a bear market. Earnings growth, residual buyback support, and productivity gains can still sustain equities. The change is structural: a multi-year tailwind that lifted valuations and cushioned drawdowns is becoming less one-sided. Higher real rates raise the return hurdle. Rising share supply reduces the mechanical lift from a shrinking float. Liquidity is less of a one-way support.
Investors who treated the post-GFC backdrop as permanent may need to recalibrate expectations for returns, volatility, and the reliability of strategies that thrived on a shrinking free float. The market winds have shifted. They may not reverse course entirely, but they are no longer the consistent ally they once were.
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