PMMF
iShares Prime Money Market ETF
stockNYSEETF
Market OpenOct 5, 2026 12:16:14 PM EDT
100.29USD+0.025%(+0.03)176,883
100.29Bid100.30Ask0.01SpreadInteractive Brokers
As of 2026-10-05 12:16:55 PM EDT, there were 450,000 shares available with a fee of 0.33%.
PMMF Borrow Fee (CTB) · Changes
| Updated1 | Fee2 % | Available | Rebate3 % |
|---|---|---|---|
| 2026-10-05 11:29:53 AM EDT | 0.33 | 450,000 | 3.55 |
| 2026-10-05 09:24:40 AM EDT | 0.34 | 450,000 | 3.54 |
| 2026-10-05 07:19:05 AM EDT | 0.37 | 450,000 | 3.51 |
| 2026-10-05 04:57:52 AM EDT | 0.37 | 500,000 | 3.51 |
| 2026-10-05 01:18:33 AM EDT | 0.37 | 400,000 | 3.51 |
| 2026-10-02 02:24:21 PM EDT | 0.37 | 550,000 | 3.51 |
| 2026-10-02 09:56:59 AM EDT | 0.36 | 550,000 | 3.52 |
| 2026-10-02 09:25:30 AM EDT | 0.36 | 600,000 | 3.52 |
| 2026-10-02 08:54:05 AM EDT | 0.30 | 600,000 | 3.58 |
| 2026-10-02 07:35:27 AM EDT | 0.30 | 550,000 | 3.58 |
| 2026-10-02 07:19:19 AM EDT | 0.30 | 350,000 | 3.58 |
| 2026-10-01 09:25:13 AM EDT | 0.30 | 300,000 | 3.58 |
| 2026-10-01 07:35:09 AM EDT | 0.34 | 300,000 | 3.54 |
| 2026-10-01 07:19:14 AM EDT | 0.34 | 250,000 | 3.54 |
| 2026-10-01 04:58:00 AM EDT | 0.34 | 500,000 | 3.54 |
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.
PMMF Borrow Fee (CTB)
PMMF 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.