S&P 500 Year-over-Year Inventory Growth

Live value temporarily unavailable.

Source: Company filings (aggregated)

Data updated daily

What it measures

The S&P 500 inventory growth rate measures the year-over-year percentage change in aggregate inventories held by index constituents. A reading of +6% means S&P 500 companies collectively held 6% more inventory versus the equivalent period one year earlier.

Why it matters

Inventory growth relative to revenue growth is a classic leading indicator of the manufacturing and distribution cycle. When inventories grow faster than revenues, companies are building stock ahead of anticipated demand or failing to sell what they produced — both of which point to margin pressure ahead as eventual markdowns or production cuts take effect. When inventories grow slower than revenues, lean supply chains signal strong demand pull and often precede re-stocking cycles. Service-heavy index compositions naturally carry low inventories, so the index-level reading is most informative when analyzed alongside goods-producing sectors specifically.

How it is calculated

Inventory Growth (YoY) = (Σ Inventories_t − Σ Inventories_t−4Q) ÷ Σ Inventories_t−4Q × 100

LENSE computes the S&P 500 inventory growth rate as the year-over-year change in aggregate inventories — the sum across current index constituents — not an average of individual company rates. Inventories per constituent are sourced from as-reported quarter-end balance sheets. Constituents with zero reported inventories (pure financial or software businesses) are included in the aggregate at zero. Constituents with negative prior-period inventories are excluded. Index constituency is resolved point-in-time via the S&P 500 membership point-in-time index constituency.

Recent (monthly)

Recent data unavailable.

Data source: Company filings (aggregated). Computed and published by LENSE Analytics.