If professional investors were genuinely concerned that rising global bond yields could derail the stock market bull run, their actual capital allocation decisions would suggest otherwise. A recent Bank of America survey shows stocks now represent 56% of global fund managers' portfolios, the highest level since November 2021. Despite the same survey identifying "disorderly bond yield increases" as the second-biggest threat to equities after AI bubble worries, investors remain firmly bullish on stocks.
Wall Street strategists are closely monitoring rising Treasury yields with some apprehension, yet most conclude that the current pace of yield increases isn't sufficient to undermine the bullish equity narrative. History demonstrates that sudden yield spikes don't always spell disaster for stocks. JC O'Hara, chief technical strategist at Roth Capital Partners LLC, notes that despite climbing yields and equities hovering near record highs, "now is the time to be bullish, or at least seize the opportunity." He attributes improving risk appetite to "stronger earnings expectations, a better economic outlook, and diminished focus on Middle East tensions," adding that when risk appetite improves, the S&P 500's forward returns tend to be robust.
Wednesday offered some relief for those worried about Treasury yields. After long-dated yields climbed to multi-year highs, the U.S. Treasury unexpectedly announced plans to increase its buybacks of long-term bonds. The department said it would "at least double the size of liquidity support repurchase operations" targeting bonds with maturities ranging from 10 to 30 years. Treasury Secretary Bessent revived the bond buyback program last year, viewing it as part of "a full toolkit that can be deployed when necessary" to address disorderly conditions in the Treasury market. Following the announcement, yields across all maturities declined. However, the bond market has since given back all of those gains—Thursday saw the 30-year Treasury yield jump 6 basis points to 5.26%, returning to pre-announcement levels, with the 10-year yield rising by a similar margin. This suggests investors view the Treasury's measures as only a short-term fix for curbing borrowing costs.
Tyler Richey, editor of Sevens Report Technicals, told reporters that rising Treasury yields represent the "elephant in the room" threatening stocks. Matt Maley, chief market strategist at Miller Tabak + Co., echoed this sentiment: "Bond yields are starting to rise, and the stock market is ignoring it—until it no longer can." Treasury yields serve as the benchmark for global borrowing costs, and their ascent transmits through the chain of "Treasuries—market interest rates—real economy," simultaneously triggering repricing within capital markets. Equity valuations fundamentally discount future earnings using interest rates; rising long-end yields compress valuations, hitting high-multiple growth stocks hardest. Over the past year, U.S. stocks hit record highs but struggled to sustain those levels, with persistently elevated Treasury yields being a key factor.
For other market analysts, the Treasury yield curve—the spread between short- and long-term yields—deserves closer attention. Currently, the 10-year yield sits roughly 49 basis points above the 2-year yield. Ed Clissold, chief U.S. strategist at Ned Davis Research, wrote in a Tuesday client note that stocks are in the yield curve's "sweet spot," describing the "moderately upward-sloping curve" as a favorable environment. In this scenario, the 10-year yield can be up to 1.5 percentage points higher than the 2-year yield, conditions that historically produce the largest and most consistent gains for the S&P 500. Based on NDR's analysis of data since 1976, the S&P 500's average annual return within this curve range is approximately 11%.
Even current bulls acknowledge that if Treasury yields continue climbing, a tipping point may eventually emerge where stocks come under pressure. Liz Ann Sonders, chief investment strategist at Schwab Center for Financial Research, remarked: "I think current levels are acceptable, but if the 10-year yield approaches 5%, it could genuinely unsettle the market, similar to what happened in 2023." That year, as the 10-year yield surged and briefly touched 5%, the S&P 500 fell 10% from late July to late October.
Institutions warn that the Treasury's expanded long-bond buybacks won't halt curve steepening. Although Wednesday's announcement provided temporary relief to the beleaguered bond market, Thursday's yield rebound underscores investor skepticism about the measures' effectiveness, echoing warnings from market institutions about potentially higher yields. JPMorgan strategists cautioned that markets may view the Treasury's unexpected move to suppress long-term funding costs as lacking credibility, which could eventually push term premiums and yields higher. In a note, strategists including Jay Barry wrote: "Without genuine fiscal consolidation, we fear the market will perceive this action as lacking credibility. If the Treasury becomes more opportunistic in debt management and deviates further from its 'regular and predictable' principles, this could lead to higher term premiums and yields over time."
JPMorgan also stated bluntly that expanding buybacks treats symptoms, not root causes. The strategists noted the operation essentially addresses the "symptom" of rising long-end yields without tackling the underlying issue—with the economy near full employment and the fiscal deficit still around 6% of GDP, persistently high financing needs are the core driver of long-term rate pressure. The bank projects U.S. financing gaps will exceed $3.5 trillion over the coming fiscal years, and unless substantive fiscal consolidation occurs, the impact of this buyback adjustment on long-end rates is likely temporary. Aegon Asset Management firmly bets the spread between short- and long-term Treasury yields will continue widening. Portfolio manager James Lynch sees the expanded long-bond buyback as "of little significance," not changing his view that yield curves in both the U.S. and Europe will keep steepening. "Fiscal issues—massive deficits, the influx of mega-cap corporate debt into markets, inflation still above target, and unclear Fed communication—all inject additional premium into markets. I don't see these factors disappearing anytime soon," Lynch said.
Barclays argues that while the Treasury's latest move has limited market impact, its policy signal shouldn't be overlooked—investors now clearly understand the Treasury is willing to adjust issuance structure if long yields keep rising. Future options include further increasing buyback sizes or explicitly reducing long-term bond issuance at the November financing meeting. However, the bank cites Japan's experience as a cautionary tale: compressing long-end supply only buys time—after Japan cut super-long bond issuance in 2025, 40-year yields initially fell about 50 basis points before hitting new highs—true resolution ultimately requires fiscal consolidation. Additionally, economists and bond traders believe that if the Treasury persistently uses debt structure adjustments to suppress long-term rates, it could stimulate economic activity, increase inflation stickiness, and make government debt financing costs more vulnerable to short-term rate fluctuations. This could also intensify pressure on the Federal Reserve to maintain policy independence.
Joseph Brusuelas, chief economist at RSM US, suggests policy is gradually moving toward a direction that may require central bank support for fiscal objectives. He believes Treasury intervention could create market distortions and put the Fed under Chair Warsh in a more difficult policy environment. Wil Stith, senior bond portfolio manager at Wilmington Trust, noted that if inflation stays flat or continues rising, the easing effect from the Treasury's yield suppression could force the Fed to hike rates more aggressively. More importantly, the beleaguered bond market faces another massive wave of debt financing. The U.S. investment-grade corporate bond market typically sees issuance peak after Labor Day. With mega-cap cloud computing companies' financing needs rising, September corporate bond issuance could reach $200 billion, potentially delivering another shock to the already-strained Treasury market. As some market participants have warned, Treasury yields may eventually rise to levels that can no longer be ignored, and at that point, the "elephant in the room" could topple the still-optimistic equity bulls.
Comments