Interstate Power and Light Co - 5.10% PRF PERPETUAL USD 25 - Ser D Operating Income

The latest operating income for IPLDP is $980M as of June 2026. That compares with $990M in the prior-year period — down 1.3% year over year. Investors often review this figure alongside Interstate Power and Light Co - 5.10% PRF PERPETUAL USD 25 - Ser D's historical trend and sector peers before judging valuation or financial health.

Over the past year, IPLDP's operating income moved from $990M to $980M — a 1.3% year-over-year decrease. If the trend continues in the same direction for several quarters, it can signal a meaningful shift in Interstate Power and Light Co - 5.10% PRF PERPETUAL USD 25 - Ser D's operating scale or balance-sheet position.

A operating income figure of $980M for IPLDP is a snapshot of scale on that line item. On its own it does not say whether the business is healthy — you also want growth rate, margins, and how the number compares with similar companies. Explore the charts below for those layers of context.

After noting IPLDP's operating income ($980M), review year-over-year change from $990M, peer averages, and a few neighboring metrics such as revenue, margins, or valuation multiples. That combination usually beats staring at a single figure. The navigation links on this page jump you to those related views.

This page's peer comparison chart is the fastest way to stack Interstate Power and Light Co - 5.10% PRF PERPETUAL USD 25 - Ser D's operating income against similar Utilities names. You can also browse sector and industry screens on Stockcircle for a broader set of Utilities companies and their key multiples and fundamentals.