Keystone Acquisition - Unit Stock Price History

NASDAQ: KEYYUFinanceBlank ChecksUSD

10.150.00 (0.00%)

At close: Oct 5, 4:00 PM ET · Delayed 15 min

KEYYU price history at a glance

The price history for Keystone Acquisition - Unit (KEYYU) on this page begins on June 1, 2026, when the stock closed at $10.03; it most recently closed at $10.06 on October 5, 2026. The highest price in this record is $10.47, reached on June 22, 2026; the latest close is 3.9% below that peak. Prices are split-adjusted closing prices; daily open, high, low, close and volume for the past year are listed below.

Summary generated from market data by MetaCap's automated system. Methodology

Key price levels

High since 2026: $10.47
Date of high: Jun 22, 2026
Low since 2026: $10.00
Date of low: Jun 1, 2026
52-week high: $10.47
52-week low: $10.00
IPO year: 2026
Last close: $10.06

KEYYU returns

1 week

-0.89%

1 month

+0.10%

3 months

-1.47%

KEYYU price return, excluding dividends.

KEYYU daily prices (past year)

Daily open, high, low, close and volume
Date	Open	High	Low	Close	Change	Volume
Oct 7, 2026	10.06	10.06	10.06	10.06	0.00%	0
Oct 6, 2026	10.06	10.06	10.06	10.06	0.00%	0
Oct 5, 2026	10.06	10.06	10.06	10.06	-0.89%	300
Oct 2, 2026	10.15	10.15	10.15	10.15	0.00%	0
Oct 1, 2026	10.15	10.15	10.15	10.15	0.00%	0
Sep 30, 2026	10.14	10.15	10.14	10.15	+0.40%	1.00K
Sep 29, 2026	10.11	10.11	10.11	10.11	0.00%	0
Sep 28, 2026	10.11	10.11	10.11	10.11	0.00%	0
Sep 25, 2026	10.11	10.11	10.11	10.11	0.00%	0
Sep 24, 2026	10.11	10.11	10.11	10.11	0.00%	0
Sep 23, 2026	10.11	10.11	10.11	10.11	0.00%	0
Sep 22, 2026	10.11	10.11	10.11	10.11	-0.39%	100
Sep 21, 2026	10.15	10.15	10.15	10.15	0.00%	0
Sep 18, 2026	10.15	10.15	10.15	10.15	0.00%	0
Sep 17, 2026	10.15	10.15	10.15	10.15	0.00%	0
Sep 16, 2026	10.15	10.15	10.15	10.15	0.00%	0
Sep 15, 2026	10.15	10.15	10.15	10.15	0.00%	0
Sep 14, 2026	10.15	10.15	10.15	10.15	0.00%	0
Sep 11, 2026	10.15	10.15	10.15	10.15	0.00%	0
Sep 10, 2026	10.15	10.15	10.15	10.15	0.00%	0
Sep 9, 2026	10.15	10.15	10.15	10.15	+1.00%	200
Sep 8, 2026	10.05	10.05	10.05	10.05	0.00%	0
Sep 4, 2026	10.05	10.05	10.05	10.05	0.00%	0
Sep 3, 2026	10.05	10.05	10.05	10.05	0.00%	0
Sep 2, 2026	10.05	10.05	10.05	10.05	0.00%	0
Sep 1, 2026	10.05	10.05	10.05	10.05	0.00%	0
Aug 31, 2026	10.05	10.05	10.05	10.05	0.00%	0
Aug 28, 2026	10.05	10.05	10.05	10.05	0.00%	0
Aug 27, 2026	10.05	10.05	10.05	10.05	0.00%	0
Aug 26, 2026	10.05	10.05	10.05	10.05	0.00%	0
Aug 25, 2026	10.05	10.05	10.05	10.05	0.00%	0
Aug 24, 2026	10.05	10.05	10.05	10.05	0.00%	0
Aug 21, 2026	10.05	10.05	10.05	10.05	0.00%	0
Aug 20, 2026	10.05	10.05	10.05	10.05	0.00%	0
Aug 19, 2026	10.05	10.05	10.05	10.05	0.00%	0
Aug 18, 2026	10.03	10.05	10.03	10.05	-0.59%	1.40K
Aug 17, 2026	10.12	10.12	10.11	10.11	-0.39%	3.30K
Aug 14, 2026	10.15	10.15	10.15	10.15	0.00%	0
Aug 13, 2026	10.15	10.15	10.15	10.15	0.00%	0
Aug 12, 2026	10.15	10.15	10.15	10.15	0.00%	0
Aug 11, 2026	10.15	10.15	10.15	10.15	0.00%	0
Aug 10, 2026	10.15	10.15	10.15	10.15	0.00%	0
Aug 7, 2026	10.15	10.15	10.15	10.15	0.00%	0
Aug 6, 2026	10.15	10.15	10.15	10.15	0.00%	0
Aug 5, 2026	10.15	10.15	10.15	10.15	0.00%	0
Aug 4, 2026	10.15	10.15	10.15	10.15	0.00%	0
Aug 3, 2026	10.15	10.15	10.15	10.15	-0.49%	3.60K
Jul 31, 2026	10.03	10.20	10.03	10.20	0.00%	700
Jul 30, 2026	10.20	10.20	10.20	10.20	0.00%	0
Jul 29, 2026	10.20	10.20	10.20	10.20	0.00%	0
Jul 28, 2026	10.17	10.20	10.17	10.20	+0.59%	2.80K
Jul 27, 2026	10.14	10.14	10.14	10.14	0.00%	0
Jul 24, 2026	10.14	10.14	10.14	10.14	0.00%	0
Jul 23, 2026	10.14	10.14	10.14	10.14	0.00%	0
Jul 22, 2026	10.14	10.14	10.14	10.14	0.00%	0
Jul 21, 2026	10.14	10.14	10.14	10.14	0.00%	0
Jul 20, 2026	10.14	10.14	10.14	10.14	0.00%	0
Jul 17, 2026	10.14	10.14	10.14	10.14	0.00%	0
Jul 16, 2026	10.14	10.14	10.14	10.14	0.00%	0
Jul 15, 2026	10.14	10.14	10.14	10.14	0.00%	0
Jul 14, 2026	10.25	10.25	10.14	10.14	0.00%	1.20K
Jul 13, 2026	10.14	10.14	10.14	10.14	0.00%	0
Jul 10, 2026	10.14	10.14	10.14	10.14	0.00%	0
Jul 9, 2026	10.17	10.17	10.14	10.14	-0.69%	600
Jul 8, 2026	10.11	10.21	10.03	10.21	+0.69%	37.50K
Jul 7, 2026	10.14	10.14	10.14	10.14	0.00%	0
Jul 6, 2026	10.14	10.14	10.14	10.14	+0.60%	500
Jul 2, 2026	10.45	10.45	10.08	10.08	+0.40%	3.30K
Jul 1, 2026	10.04	10.04	10.04	10.04	0.00%	200
Jun 30, 2026	10.25	10.25	10.04	10.04	-0.20%	900
Jun 29, 2026	10.06	10.14	10.04	10.06	0.00%	8.70K
Jun 26, 2026	10.06	10.06	10.06	10.06	0.00%	0
Jun 25, 2026	10.04	10.37	10.04	10.06	+0.20%	13.70K
Jun 24, 2026	10.47	10.47	10.03	10.04	-0.40%	3.40K
Jun 23, 2026	10.08	10.08	10.08	10.08	0.00%	0
Jun 22, 2026	10.02	10.08	10.02	10.08	+0.50%	43.60K
Jun 18, 2026	10.03	10.03	10.03	10.03	+0.10%	200
Jun 17, 2026	10.02	10.02	10.02	10.02	+0.10%	800
Jun 16, 2026	10.01	10.02	10.01	10.01	-0.10%	6.20K
Jun 15, 2026	10.03	10.03	10.00	10.02	+0.10%	35.50K
Jun 12, 2026	10.02	10.03	10.01	10.01	+0.10%	530.40K
Jun 11, 2026	10.01	10.01	10.00	10.00	0.00%	4.80K
Jun 10, 2026	10.00	10.03	10.00	10.00	-0.20%	91.40K
Jun 9, 2026	10.02	10.02	10.00	10.02	+0.20%	6.70K
Jun 8, 2026	10.05	10.05	10.00	10.00	-0.30%	78.80K
Jun 5, 2026	10.03	10.03	10.02	10.03	0.00%	70.00K
Jun 4, 2026	10.02	10.04	10.02	10.03	+0.20%	77.10K
Jun 3, 2026	10.01	10.05	10.00	10.01	—	6.93M

Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the KEYYU chart for longer ranges.