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HowShorted

RB short interest Cboe BZX

ProShares Russell 2000 Dynamic. FINRA's reported shares short for this symbol, twice a month by settlement date, shown as the regulator publishes them. No percentage is shown: exchange-traded product: its share count floats with creation and redemption.

Shares short
235
vs previous settlement
+49 (+26.3%)
days to cover
6.18
Settlement date
15 Sep 2026

Shares short over time

Aggregate net short position time series for RB shares short

Days to cover

FINRA's own figure: reported shares short divided by the security's average daily trading volume, published alongside each settlement.

Aggregate net short position time series for RB days to cover

Fails to deliver

The SEC's fails-to-deliver figure for RB: the aggregate net balance of shares that failed to be delivered at each settlement date, published by the SEC twice a month and shown here verbatim for the trailing window. A balance is not a daily flow, and a fail has many ordinary causes; the SEC says it cannot guarantee the accuracy of the data. See what fails to deliver are and the largest balances today.

Latest balance
52
14 Sep 2026
Highest in window
1,137
2 Dec 2025
Days with a balance
50
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for ProShares Russell 2000 Dynamic fails to deliver

Source: U.S. Securities and Exchange Commission, fails-to-deliver data (public domain). Only settlement days with a positive balance appear; the largest balance in the window was 1.1K shares.

History

Every FINRA settlement we hold for RB, newest first.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 2026235+496.18
31 Aug 2026186+1501.43
14 Aug 202636−711.00
31 Jul 2026107+151.15
15 Jul 202692−1,7741.00
30 Jun 20261,866−2281.80
15 Jun 20262,094−2,4981.05
29 May 20264,592+4,5022.95
15 May 202690−851.00
30 Apr 2026175−1503.65
15 Apr 2026325+4946.43
31 Mar 2026276+669.00
13 Mar 2026270+171.00
27 Feb 2026253−7163.25
13 Feb 2026324+951.00
30 Jan 202622901.00
15 Jan 2026229−251.00
31 Dec 2025254+146.68
15 Dec 202524001.00
28 Nov 2025240−157.06
14 Nov 2025255+1851.00
31 Oct 202570−721.00
15 Oct 2025142+1391.00
30 Sep 20253−1151.00
29 Aug 2025118+121.00
15 Aug 2025106−421.00
31 Jul 2025148−2531.00
15 Jul 2025401+3591.00
30 Jun 202542–1.62

Scroll inside the table for earlier settlements, back to 30 Jun 2025.

Questions

Frequently asked questions

What is RB's short interest?
235 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 49 from the previous settlement.
Why is there no percentage for RB?
Because no defensible share count exists to divide by: exchange-traded product: its share count floats with creation and redemption. An exchange-traded product's share count changes every day as units are created and redeemed, so no filing gives a stable count to divide by. FINRA's shares-short figure is exact; a percentage of it would not be.
What is RB's days to cover?
6.18 days for settlement date 15 Sep 2026: FINRA's own short interest ratio, the reported shares short divided by average daily trading volume, published in the same file and shown verbatim. We hold no volume data ourselves.
Is this the short float?
No. This page shows FINRA's share count only. Short float divides that count by the public float, and short interest as we publish it elsewhere divides it by shares outstanding from SEC filings. Neither denominator is available for this line, so neither ratio is shown.
How often does this update?
FINRA member firms report short positions as of the 15th and the last business day of each month, and FINRA publishes the consolidated figures about nine business days later. We ingest each file the day it appears and re-read recent settlements for revisions.

Ranked companies with a percentage: most shorted US stocks. Other funds by shares short and days to cover: most shorted ETFs. Other symbols with counts only: shares short without a percentage. Browse by name: US companies A to Z.