RARE
Ultragenyx Pharmaceutical Inc.
stockNASDAQ
Market OpenOct 7, 2026 1:55:01 PM EDT
14.87USD+2.835%(+0.41)2,409,449
14.86Bid14.88Ask0.02SpreadPre-marketOct 7, 2026 9:28:30 AM EDT
14.46USD0.000%(0.00)
Interactive Brokers
As of 2026-10-07 01:51:21 PM EDT, there were 1,500,000 shares available with a fee of 0.41%.
RARE Borrow Fee (CTB) · Changes
| Updated1 | Fee2 % | Available | Rebate3 % |
|---|---|---|---|
| 2026-10-07 12:48:50 PM EDT | 0.41 | 1,500,000 | 3.47 |
| 2026-10-07 04:42:21 AM EDT | 0.41 | 1,400,000 | 3.47 |
| 2026-10-07 03:08:20 AM EDT | 0.41 | 1,500,000 | 3.47 |
| 2026-10-07 02:52:41 AM EDT | 0.41 | 1,400,000 | 3.47 |
| 2026-10-07 01:34:24 AM EDT | 0.41 | 1,500,000 | 3.47 |
| 2026-10-06 08:54:35 PM EDT | 0.41 | 1,800,000 | 3.47 |
| 2026-10-06 01:35:36 PM EDT | 0.41 | 1,900,000 | 3.47 |
| 2026-10-06 12:32:57 PM EDT | 0.41 | 2,000,000 | 3.47 |
| 2026-10-06 08:06:27 AM EDT | 0.41 | 2,100,000 | 3.47 |
| 2026-10-06 07:19:08 AM EDT | 0.41 | 2,200,000 | 3.47 |
| 2026-10-06 04:42:18 AM EDT | 0.41 | 2,300,000 | 3.47 |
| 2026-10-06 01:18:29 AM EDT | 0.41 | 2,100,000 | 3.47 |
| 2026-10-06 12:47:08 AM EDT | 0.41 | 1,400,000 | 3.47 |
| 2026-10-05 02:22:01 PM EDT | 0.41 | 2,100,000 | 3.47 |
| 2026-10-05 01:35:06 PM EDT | 0.41 | 2,200,000 | 3.47 |
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.