CRBU
Caribou Biosciences, Inc. Common Stock
stockNASDAQ
Market OpenOct 5, 2026 11:48:30 AM EDT
1.20USD-2.049%(-0.02)641,659
1.1900Bid1.2000Ask0.0100SpreadPre-marketOct 5, 2026 9:19:30 AM EDT
1.235USD+1.230%(+0.015)
Interactive Brokers
As of 2026-10-05 11:45:33 AM EDT, there were 3,300,000 shares available with a fee of 0.49%.
CRBU Borrow Fee (CTB) · Changes
| Updated1 | Fee2 % | Available | Rebate3 % |
|---|---|---|---|
| 2026-10-05 11:29:53 AM EDT | 0.49 | 3,300,000 | 3.39 |
| 2026-10-05 09:24:40 AM EDT | 0.54 | 3,300,000 | 3.34 |
| 2026-10-05 08:53:23 AM EDT | 0.72 | 3,300,000 | 3.16 |
| 2026-10-05 01:18:33 AM EDT | 0.72 | 3,000,000 | 3.16 |
| 2026-10-02 02:24:21 PM EDT | 0.72 | 2,900,000 | 3.16 |
| 2026-10-02 01:21:44 PM EDT | 0.73 | 2,900,000 | 3.15 |
| 2026-10-02 12:34:49 PM EDT | 0.62 | 2,900,000 | 3.26 |
| 2026-10-02 11:31:39 AM EDT | 0.60 | 2,900,000 | 3.28 |
| 2026-10-02 09:25:30 AM EDT | 0.59 | 2,900,000 | 3.29 |
| 2026-10-02 08:54:05 AM EDT | 0.65 | 2,900,000 | 3.23 |
| 2026-10-02 07:19:19 AM EDT | 0.65 | 2,800,000 | 3.23 |
| 2026-10-01 05:31:15 PM EDT | 0.65 | 2,900,000 | 3.23 |
| 2026-10-01 01:35:56 PM EDT | 0.52 | 2,900,000 | 3.36 |
| 2026-10-01 12:33:19 PM EDT | 0.50 | 2,900,000 | 3.38 |
| 2026-10-01 11:46:14 AM EDT | 0.49 | 2,900,000 | 3.39 |
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.
CRBU Borrow Fee (CTB)
CRBU 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.