U.S. Insurance Stocks Have Outperformed the Broader Market Since Early May 2026
Key Takeaways
- •The iShares U.S. Insurance ETF (IAK) rose 12.0% from $132.01 on May 1 to $147.87 on September 3, 2026.
- •The SPDR S&P Insurance ETF (KIE) gained 14.1% over the same period, rising from $56.79 to $64.80.
- •The S&P 500 ETF (SPY) increased 7.3% over the same four-month span, leaving insurers ahead by about 5-7 percentage points.
- •Insurance is viewed as a defensive sector because of large bond holdings and underwriting results less tied to technology earnings cycles.
- •Observers will watch whether insurers' outperformance persists amid market debate over AI-related tail risks in equity valuations.
U.S. insurance stocks have performed strongly since the beginning of May 2026, materially outperforming the overall market. Using the May 1 close through the September 3 close to compare complete trading days, the figures below reflect price changes excluding dividends.
The cleanest broad measure is the iShares U.S. Insurance ETF (IAK), which covers U.S. life, property and casualty insurers. It rose from $132.01 on May 1 to $147.87 on September 3, a gain of 12.0%. An alternative, more equal-weighted measure, the SPDR S&P Insurance ETF (KIE), rose from $56.79 to $64.80 over the same period, a gain of 14.1%.
For comparison, the S&P 500 ETF (SPY) went from $720.65 to $773.17 over the same period, up 7.3%. Insurers have therefore beaten the market by roughly 5–7 percentage points over four months.
Insurance is often treated as a defensively positioned sector, in part because insurers hold large bond portfolios and their underwriting results are less directly tied to technology earnings cycles. That backdrop makes the sector's relative strength notable at a moment when, as discussed in the linked post below, market attention has been focused on whether equity valuations adequately price tail risks around advanced AI.
The data is from GPT Pro. See also the earlier post on numbers and market valuations, which asks whether any market prices reflect a realistic chance of very bad outcomes from advanced AI, and offers advice on how to short those shares. Watchers of this spread will likely follow whether the insurers' outperformance versus the S&P 500 persists as broader market debate over AI-related risk continues.
This post appeared first on Marginal REVOLUTION.
