SERA
Sera Prognostics, Inc. Class A Common Stock
stockNASDAQ
Market OpenOct 2, 2026 3:23:11 PM EDT
2.14USD+4.902%(+0.10)4,443
1.6800Bid2.4600Ask0.7800SpreadInteractive Brokers
As of 2026-10-05 02:37:40 PM EDT, there were 100,000 shares available with a fee of 0.91%.
SERA Borrow Fee (CTB) · Changes
| Updated1 | Fee2 % | Available | Rebate3 % |
|---|---|---|---|
| 2026-09-30 08:38:35 AM EDT | 0.91 | 100,000 | 2.97 |
| 2026-09-30 07:35:44 AM EDT | 0.91 | 10,000 | 2.97 |
| 2026-09-29 09:25:06 AM EDT | 0.91 | 100,000 | 2.97 |
| 2026-09-29 08:22:23 AM EDT | 0.99 | 100,000 | 2.89 |
| 2026-09-29 06:00:34 AM EDT | 0.99 | 10,000 | 2.89 |
| 2026-09-28 02:35:29 PM EDT | 0.99 | 100,000 | 2.89 |
| 2026-09-28 09:23:08 AM EDT | 1.01 | 100,000 | 2.87 |
| 2026-09-28 07:33:38 AM EDT | 0.91 | 100,000 | 2.97 |
| 2026-09-28 05:59:41 AM EDT | 0.91 | 350,000 | 2.97 |
| 2026-09-28 05:43:57 AM EDT | 0.91 | 250,000 | 2.97 |
| 2026-09-25 09:25:08 AM EDT | 0.91 | 350,000 | 2.97 |
| 2026-09-25 08:06:16 AM EDT | 0.95 | 350,000 | 2.93 |
| 2026-09-25 07:34:29 AM EDT | 0.95 | 100,000 | 2.93 |
| 2026-09-24 03:23:49 PM EDT | 0.95 | 350,000 | 2.93 |
| 2026-09-24 09:39:54 AM EDT | 0.96 | 350,000 | 2.92 |
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.
SERA Borrow Fee (CTB)
SERA 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.