PNW · Pinnacle West Capital Corp

$97.38 -0.28 (-0.29%) At close · Sep 2

S&P 500 member Russell 1000 member Rebalance outlook locked

Market Cap

$11.84B

121.20M

Shares sold short and not yet covered, reported twice monthly. Days to cover is the reported short position divided by average daily volume.

PNW Latest Reported Short Interest

FINRA reported 8,246,937 PNW shares sold short as of the August 14, 2026 settlement date, a decrease of 2,060,521 shares. Days to cover was 7.26 based on FINRA's reported average daily volume.

Official FINRA short-interest data · share counts are restated for subsequent stock splits

PNW Short Interest Forecast

Equibles' model estimates 8,512,935 shares sold short for the August 31, 2026 settlement, +3.2% versus the latest reported position, with a likely range of 7,594,073 to 9,441,568 shares. This model prediction uses FINRA data through August 31, 2026; FINRA's official release is expected September 10, 2026.

Model estimate

Expected Aug 31 short interest

as of Aug 31 Medium confidence 58% chance it rises

8,512,935 +3.2% vs reported

Likely range 7,594,073 to 9,441,568 The latest estimate appears in the chart below. Official release expected Sep 10. Methodology

Short Squeeze Score

61/100

Short interest 6.8% of shares — P82 Days to cover 7.3 — P83 Price vs VWAP -5.3% — P36 Short-volume trend -3.4% — P38 Short interest change -20.0% — P15 Worst FTD 0.07% of shares — P78

Peer-relative percentile rank across all stocks reporting short interest at the latest settlement date (2026-08-14). Weighted mean of the available factors (short interest 30%, days to cover 20%, price vs VWAP 15%, short-volume trend 15%, short-interest change 10%, fails-to-deliver 10%) plus catalyst boosts (price spike, volume surge, earnings within days), capped at +20 and clamped to 100.

1M 3M 6M 1Y 5Y All

Short Interest History

Settlement Date	Current Position	Previous Position	Change	Avg Daily Volume	Days to Cover
2026-09-15 Scheduled FINRA publishes Sep 24	—	—	—	—	—
2026-08-31 Scheduled FINRA publishes Sep 10	—	—	—	—	—
2026-08-14	8,246,937	10,307,458	-2,060,521	1,135,858	7.26
2026-07-31	10,307,458	9,123,610	+1,183,848	1,411,849	7.30
2026-07-15	9,123,610	9,075,920	+47,690	958,594	9.52
2026-06-30	9,075,920	9,648,068	-572,148	1,438,057	6.31
2026-06-15	9,648,068	9,019,788	+628,280	1,277,020	7.56
2026-05-29	9,019,788	7,920,920	+1,098,868	1,131,555	7.97
2026-05-15	7,920,920	6,646,938	+1,273,982	1,377,147	5.75
2026-04-30	6,646,938	6,893,047	-246,109	1,046,737	6.35
2026-04-15	6,893,047	6,766,711	+126,336	898,220	7.67
2026-03-31	6,766,711	6,910,348	-143,637	1,222,206	5.54
2026-03-13	6,910,348	6,320,945	+589,403	1,481,878	4.66
2026-02-27	6,320,945	6,313,790	+7,155	1,579,404	4.00
2026-02-13	6,313,790	6,030,314	+283,476	1,200,288	5.26
2026-01-30	6,030,314	5,610,107	+420,207	1,294,384	4.66
2026-01-15	5,610,107	5,662,123	-52,016	1,326,419	4.23
2025-12-31	5,662,123	5,667,988	-5,865	1,072,286	5.28
2025-12-15	5,667,988	6,136,007	-468,019	1,186,660	4.78
2025-11-28	6,136,007	5,292,798	+843,209	1,272,255	4.82
2025-11-14	5,292,798	5,093,604	+199,194	1,693,748	3.12
2025-10-31	5,093,604	4,675,505	+418,099	1,259,886	4.04
2025-10-15	4,675,505	5,145,343	-469,838	1,011,541	4.62
2025-09-30	5,145,343	5,688,007	-542,664	1,102,165	4.67
2025-09-15	5,688,007	5,341,939	+346,068	905,594	6.28

Full FINRA short interest reporting calendar

Showing 1–23 of 23 settlements

Key facts CIK 764622 CUSIP 723484101 13F (30d) 471 filings 458 filers Visit website Investor relations