CPST
Calamos S&P 500 Structured Alt Protection ETF - September
stockNYSEETF
At CloseNov 4, 2026 3:20:36 PM EST
28.28USD0.000%(+28.28)2,497
As of 2026-11-09 04:42:17 AM EST, there were 20,000 shares available with a fee of 9.82%.
CPST Borrow Fee (CTB) · Changes
| Updated1 | Fee2 % | Available | Rebate3 % |
|---|---|---|---|
| 2026-11-07 01:34:08 AM EST | 9.82 | 20,000 | -5.94 |
| 2026-11-06 11:31:50 AM EST | 9.82 | 25,000 | -5.94 |
| 2026-11-06 10:29:16 AM EST | 10.02 | 25,000 | -6.14 |
| 2026-11-06 08:07:35 AM EST | 10.02 | 15,000 | -6.14 |
| 2026-11-06 07:20:02 AM EST | 10.02 | 3,000 | -6.14 |
| 2026-11-05 06:36:07 PM EST | 10.02 | 20,000 | -6.14 |
| 2026-11-05 03:27:57 PM EST | 10.22 | 20,000 | -6.34 |
| 2026-11-05 09:26:48 AM EST | 9.81 | 20,000 | -5.93 |
| 2026-11-05 08:39:08 AM EST | 9.80 | 20,000 | -5.92 |
| 2026-11-05 08:07:38 AM EST | 9.80 | 15,000 | -5.92 |
| 2026-11-05 07:20:05 AM EST | 9.80 | 4,000 | -5.92 |
| 2026-11-04 09:25:09 AM EST | 9.80 | 20,000 | -5.92 |
| 2026-11-04 08:06:48 AM EST | 9.81 | 15,000 | -5.93 |
| 2026-11-04 07:19:08 AM EST | 9.81 | 3,000 | -5.93 |
| 2026-11-04 07:03:23 AM EST | 9.81 | 25,000 | -5.93 |
1 Data from Interactive Brokers. IBKR publishes an updated file every 15 minutes. If there’s no update, there aren’t any shares available.
2 A stock loan fee (a.k.a. borrow fee, borrow rate, or cost to borrow) is a fee charged by a brokerage firm to a client for borrowing shares.
3 A stock loan rebate is a cash payment granted by a brokerage to a customer who lends stock as cash collateral to short sellers. A positive rebate means the lender pays the interest to the broker-dealer; a negative rebate means the security is hard-to-borrow and the broker-dealer pays the interest to the lender.
CPST Borrow Fee (CTB)
CPST Borrow Fee (CTB) · Data
| Updated1 | Fee2 % | Available | Rebate3 % |
|---|
1 Data from Interactive Brokers. IBKR publishes an updated file every 15 minutes. If there’s no update, there aren’t any shares available.
2 A stock loan fee (a.k.a. borrow fee, borrow rate, or cost to borrow) is a fee charged by a brokerage firm to a client for borrowing shares.
3 A stock loan rebate is a cash payment granted by a brokerage to a customer who lends stock as cash collateral to short sellers. A positive rebate means the lender pays the interest to the broker-dealer; a negative rebate means the security is hard-to-borrow and the broker-dealer pays the interest to the lender.