RARE
Ultragenyx Pharmaceutical Inc.
stockNASDAQ
At CloseOct 2, 2026 3:59:58 PM EDT
15.21USD+3.119%(+0.46)3,880,768
Pre-marketOct 2, 2026 9:26:30 AM EDT
14.80USD+0.339%(+0.05)
After-hoursOct 2, 2026 4:27:30 PM EDT
15.33USD+0.789%(+0.12)
Interactive Brokers
As of 2026-10-05 04:57:52 AM EDT, there were 2,100,000 shares available with a fee of 0.41%.
RARE Borrow Fee (CTB) · Changes
| Updated1 | Fee2 % | Available | Rebate3 % |
|---|---|---|---|
| 2026-10-05 01:18:33 AM EDT | 0.41 | 2,100,000 | 3.47 |
| 2026-10-05 01:02:51 AM EDT | 0.41 | 2,000,000 | 3.47 |
| 2026-10-03 11:22:43 PM EDT | 0.41 | 1,900,000 | 3.47 |
| 2026-10-02 08:56:59 PM EDT | 0.41 | 1,800,000 | 3.47 |
| 2026-10-02 02:55:38 PM EDT | 0.41 | 1,900,000 | 3.47 |
| 2026-10-02 12:34:49 PM EDT | 0.41 | 2,000,000 | 3.47 |
| 2026-10-02 12:19:10 PM EDT | 0.41 | 1,900,000 | 3.47 |
| 2026-10-02 12:03:28 PM EDT | 0.41 | 2,000,000 | 3.47 |
| 2026-10-02 11:31:39 AM EDT | 0.41 | 1,900,000 | 3.47 |
| 2026-10-02 09:25:30 AM EDT | 0.41 | 2,000,000 | 3.47 |
| 2026-10-02 07:03:33 AM EDT | 0.40 | 2,000,000 | 3.48 |
| 2026-10-02 04:58:08 AM EDT | 0.40 | 2,600,000 | 3.48 |
| 2026-10-02 02:37:01 AM EDT | 0.40 | 2,500,000 | 3.48 |
| 2026-10-02 02:21:21 AM EDT | 0.40 | 2,400,000 | 3.48 |
| 2026-10-02 01:34:21 AM EDT | 0.40 | 2,500,000 | 3.48 |
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.
RARE Borrow Fee (CTB)
RARE 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.