Insurance stocks gain 10% to 53% as high rates boost underwriting profits

Persistently high interest rates are reshaping the insurance sector, widening margins for carriers with disciplined underwriting and strong investment portfolios.

American International Group Inc., American Financial Group Inc. and Accelerant Holdings Corp. are emerging as standout beneficiaries of a rate environment that has kept borrowing costs elevated well into 2026. Each of the three carriers reported first-quarter results that beat expectations, with combined ratios below 100 percent and double-digit premium growth.

"The valuation gap was so wide that a truck can drive through it," said Amy Zhang, portfolio manager at Alger. "At the same time, fundamentals are improving in small-caps and I think that's why it's causing the broadening trade."

AIG posted a combined ratio of 87.3 percent in the first quarter, meaning it earned $12.70 in underwriting profit for every $100 in premiums collected. General Insurance net premiums written rose 24 percent year over year, while underwriting income more than tripled to $774 million. The Zacks consensus estimate for 2026 earnings stands at $7.98 per share, implying 12.6 percent growth from a year earlier. Wall Street's average price target of $88.18 suggests 17.4 percent upside from current levels.

American Financial Group reported net operating earnings up 36.5 percent year over year, with Specialty P&C underwriting profit jumping 66 percent. The company generated an annualized return on equity of 15.8 percent and returned $259 million to shareholders through dividends and buybacks in the first quarter alone. Analysts expect 2026 earnings of $11.37 per share, a 10.5 percent increase, with the consensus revenue estimate at $8.01 billion.

Accelerant Holdings, which operates a technology-enabled risk exchange connecting managing general agents with capital providers, posted Exchange Written Premium of $1.14 billion in the first quarter, up 16 percent. Operating revenues climbed 57 percent to $273.2 million, while fee-based adjusted EBITDA more than doubled. The company expanded its network to 296 members. Wall Street's average price target of $19.33 implies 53.1 percent upside.

Why High Rates Favor Insurers

Insurance companies benefit from elevated interest rates in two ways. Higher yields boost investment income on their bond-heavy portfolios, while disciplined underwriting — reflected in combined ratios below 100 percent — ensures that core operations remain profitable even as the cost of capital rises.

The broader commercial insurance market is holding up well even as pricing normalizes. Global commercial insurance rates declined 5 percent in the first quarter, according to Marsh & McLennan's Global Insurance Market Index, marking the seventh straight quarter of easing. Still, property insurance remains profitable, supported by favorable reinsurance conditions.

Specialty and excess-and-surplus insurance remains one of the fastest-growing niches. Businesses increasingly need coverage for cyberattacks, professional liability claims and climate-related risks — policies that are harder to underwrite, allowing carriers with specialized expertise to maintain stronger pricing.

The Threat From Further Hikes

The Federal Reserve next meets July 28-29, with traders pricing in about a 30 percent chance of a rate increase, according to CME Group's FedWatch tool. Higher borrowing costs pose a particular challenge for smaller companies, which carry more floating-rate debt. Bank of America estimates that every additional 25-basis-point hike would reduce Russell 2000 operating earnings by about 2 percent.

Even so, many investors believe the worst of the tightening cycle is over. The Fed raised rates by 500 basis points between March 2022 and mid-2023, one of the most aggressive campaigns in decades.

"We're probably close to peak inflation and peak rates," Zhang said. "We had significant headwind the last five years, and I think the headwind is going to abate and turning into a tail wind."

The sustained rate environment creates a clear advantage for insurers with strong balance sheets and pricing power. Investors will watch second-quarter earnings in coming weeks for signs that underwriting margins can hold as commercial pricing continues to normalize.

This article is for informational purposes only and does not constitute investment advice.