A new Goldman Sachs report highlights that heavy spending on AI infrastructure and rising government debt are driving up global borrowing costs. While strong corporate earnings have so far supported equity markets, investors should note that current valuations are sensitive to shifts in bond yields. The report suggests that investors may need to watch how funding costs impact long-term stock performance.
A new report from Goldman Sachs indicates that the combination of aggressive private-sector AI investment and rising government borrowing is reshaping the global financial environment. For years, markets operated in a period of near-zero interest rates, but the current demand for capital to fund data centers, semiconductor production, and energy infrastructure is keeping borrowing costs elevated.
Governments across the globe are also increasing debt to finance defense, energy security, and national projects. This simultaneous demand for funds from both companies and governments has effectively created a new reality for global interest rates. While investors have enjoyed a long period of growth, the report warns that the current environment may be more challenging for equity markets.
One of the key risks for investors is the compression of equity risk premiums. This term refers to the extra return investors expect for holding stocks instead of safer assets like bonds. Currently, these premiums are at levels similar to those seen in the late 1990s. This makes stocks more sensitive to sudden changes in bond yields. If bond yields rise quickly, it can cause immediate pressure on stock valuations, as seen in recent market volatility.
Corporate earnings have acted as a shield against these higher costs so far. In many major economies, strong profit growth has helped businesses absorb the impact of higher interest rates. For instance, in the United States, forward price-to-earnings multiples have contracted from 22x to 19x, which indicates that while valuations remain relatively high, they are moving closer to long-term averages. Technology and banking sectors have been particularly important in maintaining this profit resilience.
For Indian investors, the global trend in interest rates and capital costs is relevant because it influences foreign institutional investment flows. When global borrowing costs rise, investors often reassess their exposure to emerging markets. Additionally, Indian companies with significant debt or large expansion plans may face increased pressure on their interest expenses, which can impact bottom-line profits.
The report also highlights a shift in market leadership. Since early 2025, market performance has broadened beyond just a few major US tech stocks. Institutional investors are increasingly looking toward geographic diversification to manage risk, rather than relying on a single market. The main takeaway for investors is to closely track the trajectory of bond yields and company earnings. The balance between these two factors will determine the sustainability of current equity valuations in the coming months.