Pinnacle West Capital market cap PNW

Share price times shares outstanding: what the whole company sells for, since 2010.

Pinnacle West Capital is worth $12.8B at the close on Oct 23, 2026, at $105.88 a share.

That is up 17% over the last year and up 76% over five years.

Its highest close in our data was $47.4B in Mar 2011.

Market cap over time

Year	End of year	Low	High	Change
2026 so far	$12.8B	$10.5B	$13.3B	+21%
2025	$10.6B	$9.3B	$11.3B	+10%
2024	$9.7B	$7.6B	$10.7B	+19%
2023	$8.1B	$8B	$9.7B	−5%
2022	$8.6B	$6.9B	$9B	+8%
2021	$8B	$7.3B	$9.9B	−12%
2020	$9B	$7.4B	$11.6B	−10%
2019	$10B	$9.5B	$11B	+5%
2018	$9.6B	$8.3B	$10.2B	+0%
2017	$9.5B	$8.5B	$10.2B	+10%
2016	$8.7B	$7.1B	$9B	+22%
2015	$7.1B	$6.3B	$8B	−8%
2014	$7.7B	$5.7B	$7.7B	+32%
2013	$5.9B	$5.7B	$6.8B	+6%
2012	$5.5B	$5.1B	$5.9B	+5%
2011	$5.3B	$4.4B	$47.4B	−88%
2010	$45.1B	$42.7B	$45.8B	n/a

Companies in Regulated Electric nearest Pinnacle West Capital's size, closest first, today.