Billionaire "Bond King" Jeff Gundlach warned on Friday that Wall Street's latest attempt to finance the AI boom may signal that risk markets are nearing a top. The DoubleLine Capital CEO took aim at Nvidia Corp. (NASDAQ: NVDA) and its partnerships with six financial giants designed to mobilize more than $500 billion for AI infrastructure, questioning whether fast-evolving chips make suitable collateral for long-term debt.

Gundlach wrote on X that assets of unknown life as collateral for long-term debt "will not likely age well." He compared the plan to issuing 30-year asset-backed securities against warehouses of "newly engineered bananas of unknown life." He later framed the financing push as a potential market-top signal, noting that declarations of "new asset classes" involving "financial innovation" abetted by "questionable ratings" often precede peaks.

Nvidia Partners with Six Financial Giants

Nvidia last week teamed up with Apollo, BlackRock, Blackstone, Brookfield, Goldman Sachs, and KKR to establish AI compute infrastructure financing platforms. The money is largely outside capital, with the platforms designed to channel institutional money into the buildout rather than put the burden on Nvidia's own balance sheet.

Nvidia CEO Jensen Huang said the company may provide residual-value support on up to 25% of individual opportunities, while the memoranda remain subject to final agreements. Ben Thompson, founder of Stratechery, argues Nvidia isn't providing that backing for free, describing it as a "price cut" that never appears in headline GPU prices.

Debate Over Chip Useful Life

Nvidia has made the opposite case regarding the useful life of its chips. In a blog post last week, Huang said its compute can remain economically useful for years because it serves multiple workloads, can be redeployed, and improves through software updates. He pointed to the A100, launched in 2020 and still in active commercial use six years later, with some multi-year deployments that could extend its economic life to a decade.

Prediction Markets See Upside

Despite Gundlach's warning, prediction market traders still see room for Nvidia to climb. Polymarket currently gives the stock a roughly 51% chance of touching $232 before the end of August, and a 28% chance of $240. Nvidia reports second-quarter earnings on Aug. 26.

What the Numbers Show

The divergence between Gundlach's skepticism about chip longevity and Nvidia's claim of decade-long economic utility highlights a critical tension in the financing model. If the $500 billion mobilization relies on GPUs remaining valuable for long-term debt structures, the actual utilization rates and redeployment success of older chips like the A100 will be key indicators. Meanwhile, the modest probability (51%) of hitting $232 suggests traders are pricing in caution despite the massive capital inflow.

Nvidia Corp (NASDAQ: NVDA) has established itself as the definitive long-term winner among S&P 500 stocks, claiming the top spot for 10-year, 15-year, and 20-year total returns. Despite this dominance in multi-decade performance metrics, the chipmaker ranks fifth in the five-year category, where specialized industrial and memory storage firms have delivered superior gains.

Data shared by Charlie Bilello, chief market strategist at Creative Planning, highlights a divergence in recent performance versus historical dominance. While Nvidia’s market capitalization has grown to become one of the largest globally, its five-year total return of +1,019% was surpassed by four other companies.

Top Performing Stocks Past Five Years

Comfort Systems USA (NYSE: FIX), an HVAC and plumbing company, led the pack with a total return of +2,274%. The top five performers over this specific period were:

1. Comfort Systems USA: +2,274%
2. Micron Technology (NASDAQ: MU): +1,305%
3. Seagate Technology (NASDAQ: STX): +1,151%
4. Lumentum Holdings (NASDAQ: LITE): +1,078%
5. Nvidia Corp: +1,019%

Long-Term Dominance

When the timeframe extends beyond five years, Nvidia’s performance separates significantly from its peers. The company posted a +14,468% return over the past decade, more than double that of second-place Advanced Micro Devices (NASDAQ: AMD) at +7,543%.

Over 15 years, Nvidia’s return reached +76,248%, far exceeding Tesla Inc (NASDAQ: TSLA) at +19,414% and Broadcom Inc (NASDAQ: AVGO) at +17,545%. In the 20-year window, Nvidia delivered +63,261%, leading Netflix Inc (NASDAQ: NFLX) which returned +27,380%.

What the Numbers Show

The data reveals a concentration of high-growth winners in the technology and infrastructure sectors, but with significant rotation across timeframes. Only four stocks ranked within the top 20 across all four measured periods (five, 10, 15, and 20 years). Nvidia is the only company to rank first in the three longest periods while dropping to fifth in the shortest. Conversely, Comfort Systems USA appeared in the top five for both the five-year and 20-year periods, demonstrating sustained outperformance despite sector differences from the tech-heavy leaders.

Among the "Magnificent Seven" mega-cap stocks, only Apple Inc (NASDAQ: AAPL) made any list, ranking seventh in 20-year returns. Meta Platforms, Microsoft, and Alphabet did not appear in the top 20 for any of the measured periods. This suggests that while large-cap tech giants drive market indices, their absolute total returns over multi-year horizons have been outpaced by smaller-cap specialists in semiconductors, industrial services, and data storage.