PFO · Flaherty & Crumrine PREFERRED & INCOME OPPORTUNITY FUND INC

$9.03 +0.05 (+0.56%) At close · Aug 25

Market Cap

$119.13M

13.08M

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

PFO Short Interest Forecast

Equibles' model estimates 14,201 shares sold short for the August 31, 2026 settlement, +12.1% versus the latest reported position. This model prediction uses FINRA data through August 21, 2026; FINRA's official release is expected September 10, 2026.

Model estimate

Expected Aug 31 short interest

as of Aug 21

14,201 +12.1% vs reported

The latest estimate appears in the chart below. Official release expected Sep 10. Methodology

Short Squeeze Score

39/100

Short interest 0.1% of shares — P20 Days to cover 1.0 — P13 Price vs VWAP -1.6% — P42 Short-volume trend +4.9% — P69 Short interest change +13.5% — P80 Worst FTD 0.01% of shares — P53

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	12,671	11,168	+1,503	22,213	1.00
2026-07-31	11,168	9,223	+1,945	27,774	1.00
2026-07-15	9,223	8,083	+1,140	18,785	1.00
2026-06-30	8,083	18,848	-10,765	16,320	1.00
2026-06-15	18,848	16,157	+2,691	24,372	1.00
2026-05-29	16,157	2,702	+13,455	45,777	1.00
2026-05-15	2,702	5,194	-2,492	32,256	1.00
2026-04-30	5,194	5,907	-713	39,215	1.00
2026-04-15	5,907	37,723	-31,816	18,568	1.00
2026-03-31	37,723	11,848	+25,875	35,073	1.08
2026-03-13	11,848	7,112	+4,736	37,159	1.00
2026-02-27	7,112	10,019	-2,907	27,673	1.00
2026-02-13	10,019	26,808	-16,789	36,167	1.00
2026-01-30	26,808	14,238	+12,570	28,168	1.00
2026-01-15	14,238	11,668	+2,570	23,225	1.00
2025-12-31	11,668	16,611	-4,943	36,289	1.00
2025-12-15	16,611	25,200	-8,589	47,259	1.00
2025-11-28	25,200	25,830	-630	30,668	1.00
2025-11-14	25,830	23,585	+2,245	32,831	1.00
2025-10-31	23,585	37,171	-13,586	26,650	1.00
2025-10-15	37,171	21,237	+15,934	30,691	1.21
2025-09-30	21,237	47,934	-26,697	71,036	1.00
2025-09-15	47,934	9,812	+38,122	55,487	1.00
2025-08-29	9,812	15,964	-6,152	94,889	1.00

Showing 1–24 of 24 settlements

Key facts CIK 882071 CUSIP 33848E106 13F (30d) 43 filings 43 filers Visit website