KeyCorp posted second-quarter 2026 net income of $472 million, or $0.44 per diluted common share, a 26% increase year-over-year. Revenue came in at $1.96 billion, up 7% from the prior-year period. Those two numbers move at different speeds, and the gap between them is what the quarter is actually about.

Net interest income carries the result

Net interest income rose 9% year-over-year and 2% sequentially. The net interest margin came in at 2.89%, up 2 basis points sequentially. Neither figure alone is a headline. Together, they describe a bank where the core spread business is growing, if at a measured pace, and where that growth is translating directly into the earnings line.

Commercial loan demand fills the volume side

Period-end loans rose $1.2 billion sequentially. The driver was commercial and industrial loans, up $2.1 billion, or 3%, in the quarter. C&I growth at that rate signals active business borrowing. For a bank running a sub-3% net interest margin, loan volume is the mechanism that converts a narrow spread into a real NII gain, which is exactly what the 9% year-over-year NII increase reflects.

The counterargument: 2.89% is not a comfortable margin

What's changed is the direction. What has not changed is the level. A net interest margin of 2.89% remains historically compressed for a regional bank, and 2 basis points of sequential expansion provides limited cushion if deposit costs move against the bank or the rate environment shifts. The 26% year-over-year earnings gain also outruns the 7% revenue increase by a wide margin; that spread typically reflects favorable items below the NII line, and the available data do not fully detail those.

On balance

The case for KeyCorp's Q2 is built on two concrete inputs: NII up 9% year-over-year and C&I loan growth of $2.1 billion, which together produced $472 million in net income on $1.96 billion in revenue. The line to watch is the net interest margin. At 2.89%, it is heading in the right direction. The number that determines whether this result repeats is $2.1 billion in quarterly C&I loan growth.