Does Ubs own CHI stock?

Yes. As of its Q2 2026 13F, Ubs holds 2,574,530 shares of CHI, worth $34.6M.

How many shares of CHI does Ubs own?

As of its Q2 2026 13F, Ubs holds 2,574,530 shares of CHI.

As of its Q2 2026 13F, Ubs' CHI position is worth $34.6M.

In Q2 2026, Ubs increased its CHI position by 196,134 shares (+8.3%).

Ubs already held CHI in its Q1 2019 13F, the earliest on record, and has listed it in 30 quarterly 13F filings.

30 quarters

Position history for UBS Group AG's holdings in Calamos Convertible Opportunities and Income Fund

Current Value

$34.6M

Current Shares

2.6M

Total Value Change

+$27M

Total Shares Change

+1.8M

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Increased	2.6M	+8.3%	$34.6M	0.0%	$13.04	31
2026-Q1	Increased	2.4M	+8.7%	$25.5M	0.0%	$10.18	31
2025-Q4	Increased	2.2M	+7.4%	$22.9M	0.0%	$9.77	31
2025-Q3	Increased	2M	+6.5%	$22M	0.0%	$9.71	30
2025-Q2	Increased	1.9M	+4.9%	$20.1M	0.0%	$9.22	30
2025-Q1	Decreased	1.8M	-2.6%	$17.5M	0.0%	$8.16	0
2024-Q4	Decreased	1.9M	-0.7%	$22.3M	0.0%	$9.98	0
2024-Q3	Decreased	1.9M	-13.8%	$21.9M	0.0%	$9.43	0
2024-Q2	Increased	2.2M	+41.8%	$25.5M	0.0%	$9.20	38
2024-Q1	Increased	1.5M	+0.7%	$17.5M	0.0%	$8.75	28
2023-Q4	Increased	1.5M	+2.1%	$15.9M	0.0%	$7.85	29
2023-Q3	Increased	1.5M	+1.6%	$15.8M	0.0%	$7.70	29
2023-Q2	Increased	1.5M	+6.3%	$16.5M	0.0%	$7.97	30
2023-Q1	Increased	1.4M	+1.3%	$14.6M	0.0%	$7.29	28
2022-Q4	Increased	1.4M	+3.8%	$14.4M	0.0%	$7.17	29
2022-Q3	Decreased	1.3M	-3.7%	$12.8M	0.0%	$6.36	0
2022-Q2	Increased	1.4M	+8.4%	$14.7M	0.0%	$6.89	31
2022-Q1	Decreased	1.3M	-2.9%	$16.7M	0.0%	$8.29	0
2021-Q4	Decreased	1.3M	-12.3%	$19.7M	0.0%	$9.35	0
2021-Q3	Decreased	1.5M	-0.4%	$22.3M	0.0%	$9.03	0
2021-Q2	Increased	1.5M	+13.8%	$22.7M	0.0%	$8.99	32
2021-Q1	Increased	1.3M	+22.1%	$18.7M	0.0%	$8.27	34
2020-Q4	Increased	1.1M	+20.8%	$14.5M	0.0%	$7.77	34
2020-Q3	Decreased	889,165	-2.1%	$9.8M	0.0%	$6.15	0
2020-Q2	Increased	908,098	+0.0%	$9.7M	0.0%	$5.82	28
2020-Q1	Decreased	907,698	-8.0%	$7.6M	0.0%	$4.45	0
2019-Q4	Increased	986,162	+15.6%	$10.8M	0.0%	$5.78	32
2019-Q3	Increased	853,385	+16.9%	$8.9M	0.0%	$5.31	32
2019-Q2	Decreased	729,982	-2.7%	$7.7M	0.0%	$5.24	0
2019-Q1	First report	750,570	-	$7.6M	0.0%	$4.95	0

Other major holders of CHI: Bank of America Corp.