Eyes were heavily locked onto Jerome Powell’s speech today. The stock market has cheered on his comments, providing nice relief for investors.Powell acknowledged the idea of smaller interest rate hikes potentially starting in December and reiterated that the Fed remains laser-focused on bringing inflation down.Further, Powell said that the Fed is likely to need somewhat higher rates in 2023 than the initial projections in September provided.While inflation obviously remains too high for the Fed’s liking, Powell’s relatively less-hawkish nature was a welcome sight by investors, boosting the major indices well into the green intraday.With the Fed fully committed to bringing inflation down, stocks in the financial sector, such as insurers, may see their profit margins expand in higher interest-rate environments.To back their policies, insurers primarily carry safe long-term bonds, allowing them to generate more money from their debt as interest rates rise.Three insurers – Aflac AFL, Unum Group UNM, and Reinsurance Group of America RGA – could all be considerations for investors during a higher interest-rate regime.Below is a chart illustrating the year-to-date performance of all three stocks, with the S&P 500 blended in as a benchmark.Image Source: Zacks Investment ResearchAs we can see, all three stocks reside well in the green year-to-date, becoming bright spots in an otherwise dim market. Let’s take a closer look at each one.AflacAflac is an American insurance company and a massive supplier of supplemental insurance within the U.S.For those that seek income, Aflac has that covered; the company’s annual dividend currently yields 2.2%, just a tick below its Zacks Finance sector average of 2.3%.Further, the company has shown a commitment to growing its dividend, upping its payout six times over the last five years, translating to a 10.8% five-year annualized dividend growth rate.Image Source: Zacks Investment ResearchCurrently, AFL shares trade at a 13.5X forward earnings multiple, above the 11.2X five-year median but below its Zacks sector average.Image Source: Zacks Investment ResearchAFL carries a Value Style Score of a B.Unum Group Unum Group provides disability insurance, long-term care insurance, life insurance, and employee-paid group benefits and related services.The company has witnessed positive earnings estimate revisions over the last several months, helping land the stock into a favorable Zacks Rank #2 (Buy).Image Source: Zacks Investment ResearchSimilar to AFL, Unum Group pays its investors handsomely; the company’s annual dividend currently yields 3.2% paired with a 6.3% five-year annualized dividend growth rate.UNM pays out 23% of its earnings.Image Source: Zacks Investment ResearchReinsurance Group of America Reinsurance Group of America is a leading global provider of traditional life and health reinsurance and financial solutions with operations in the United States, Canada, Europe, and others.RGA carries a loaded growth profile, with earnings forecasted to soar more than a quad-digit 1200% in its current fiscal year (FY22) and a further 3.4% in FY23.The projected earnings growth comes on top of forecasted Y/Y revenue upticks of 3.8% in FY22 and 2.9% in FY23, indicating that margins are expanding quite notably.Further, shares are relatively cheap; the company’s shares currently trade at a 9.5X forward P/E ratio, well beneath the 12.1X five-year median and Zacks Finance sector average.Image Source: Zacks Investment ResearchRGA has found success within its quarterly results as of late, exceeding the Zacks Consensus EPS estimate by at least 76% in its last three quarters.Sales results paint a similarly positive story; RGA has exceeded sales expectations in eight consecutive quarters. Below is a chart illustrating the company’s revenue on a quarterly basis.Image Source: Zacks Investment ResearchBottom LineA somewhat less-hawkish stance from the Fed gave stocks a significant boost in today’s session.Of course, it’s essential to know that the Fed is still fully committed to bringing inflation down, but the talk of potentially slower-paced rate hikes was a welcome sight by investors.During higher interest rate environments, companies such as – Aflac AFL, Unum Group UNM, and Reinsurance Group of America RGA – can see their profit margins expand.Additionally, the Zacks Finance sector is currently ranked #1 out of all 16 Zacks sectors, telling us that stocks within have been witnessing favorable earnings estimate revisions.After all, since a sector is nothing more than a group of stocks in a similar business, utilizing the Zacks Sector Rank is the perfect way to see which areas currently look more promising than others. Zacks Names "Single Best Pick to Double" From thousands of stocks, 5 Zacks experts each have chosen their favorite to skyrocket +100% or more in months to come. From those 5, Director of Research Sheraz Mian hand-picks one to have the most explosive upside of all. It’s a little-known chemical company that’s up 65% over last year, yet still dirt cheap. With unrelenting demand, soaring 2022 earnings estimates, and $1.5 billion for repurchasing shares, retail investors could jump in at any time. This company could rival or surpass other recent Zacks’ Stocks Set to Double like Boston Beer Company which shot up +143.0% in little more than 9 months and NVIDIA which boomed +175.9% in one year.Free: See Our Top Stock and 4 Runners Up >>Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report Aflac Incorporated (AFL): Free Stock Analysis Report Unum Group (UNM): Free Stock Analysis Report Reinsurance Group of America, Incorporated (RGA): Free Stock Analysis ReportTo read this article on Zacks.com click here.Zacks Investment Research