Businesses Build Buffer Stocks Amid Persistent Supply Shortages

Global businesses are actively increasing buffer stock levels in response to persistent supply chain disruptions and heightened expectations of future volatility, according to GEP's Supply Chain Volatility Index. This strategic shift reflects a fundamental change in how companies approach inventory management—moving away from just-in-time models toward deliberate overcapacity as a risk hedge. The trend signals that supply chain professionals believe current disruptions are not temporary anomalies but rather structural shifts requiring permanent operational adjustments.

This buffer-building behavior has significant implications for working capital, warehouse utilization, and transportation demand. Companies face a strategic trade-off: maintaining higher safety stock protects against stockouts and demand spikes but ties up capital, increases storage costs, and risks obsolescence if demand patterns shift. The persistence of shortages indicates that supply normalization is not imminent, forcing procurement teams to make longer-term commitments to elevated inventory levels rather than anticipating a quick return to pre-disruption conditions.

For supply chain leaders, this index signals an industry-wide recognition that resilience now requires buffering. Organizations that fail to adequately increase safety stock risk service level failures, while those that over-invest face margin pressure. The challenge is calibrating buffer levels precisely enough to balance risk mitigation against working capital constraints—a complexity that demands scenario planning, supplier relationship strengthening, and potentially reshoring or nearshoring strategies to reduce lead time variability.