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HowShorted

SPBO short interest NYSE Arca

State Street SPDR Portfolio Co. 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
158,399
vs previous settlement
+22,059 (+16.2%)
days to cover
1.00
Settlement date
15 Sep 2026

Shares short over time

Aggregate net short position time series for SPBO 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 SPBO days to cover

Fails to deliver

The SEC's fails-to-deliver figure for SPBO: 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
41
14 Sep 2026
Highest in window
567,381
2 Mar 2026
Days with a balance
196
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for State Street SPDR Portfolio Co 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 567K shares.

History

Every FINRA settlement we hold for SPBO, newest first. สณ marks a figure FINRA itself flagged as revised.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 2026158,399+22,0591.00
31 Aug 2026136,340โˆ’143,6741.00
14 Aug 2026280,014+25,1451.00
31 Jul 2026254,869+16,3291.00
15 Jul 2026238,540โˆ’3,271,8901.00
30 Jun 20263,510,430+3,301,6533.91
15 Jun 2026208,777โˆ’284,9811.00
29 May 2026493,758+104,1141.00
15 May 2026389,644+140,1361.00
30 Apr 2026249,508โˆ’151,8331.00
15 Apr 2026401,341+124,4451.00
31 Mar 2026276,896+99,4211.00
13 Mar 2026177,475โˆ’695,0311.00
27 Feb 2026872,506+786,1421.36
13 Feb 202686,364โˆ’61,3391.00
30 Jan 2026147,703โˆ’98,8671.00
15 Jan 2026246,570โˆ’12,8421.00
31 Dec 2025259,412+178,1201.00
15 Dec 202581,292โˆ’119,3261.00
28 Nov 2025200,618+121,0131.00
14 Nov 202579,605โˆ’118,7271.00
31 Oct 2025198,332+116,5231.00
15 Oct 202581,809โˆ’119,2011.00
30 Sep 2025201,010โˆ’96,5391.00
15 Sep 2025297,549+177,0021.00
29 Aug 2025120,547โˆ’42,6961.00
15 Aug 2025163,243โˆ’50,3801.00
31 Jul 2025213,623โˆ’12,8141.00
15 Jul 2025226,437โˆ’4,9011.00
30 Jun 2025231,338+139,8181.00
13 Jun 202591,520+29,4691.00
30 May 202562,051+5,1551.00
15 May 202556,896+1,7341.00
30 Apr 202555,162โˆ’204,9471.00
15 Apr 2025260,109โˆ’663,2461.00
31 Mar 2025923,355+742,6841.00
14 Mar 2025180,671โˆ’364,0891.00
28 Feb 2025544,760โˆ’92,2281.00
14 Feb 2025636,988+50,1361.00
31 Jan 2025586,852+85,2721.00
15 Jan 2025501,580+398,6161.00
31 Dec 2024102,964โˆ’68,0171.00
13 Dec 2024170,981+87,9231.00
29 Nov 202483,058โˆ’114,2361.00
15 Nov 2024197,294+166,6741.00
31 Oct 202430,620โˆ’67,0991.00
15 Oct 202497,719+1,6821.00
30 Sep 202496,037+48,5191.00
13 Sep 202447,518โˆ’60,4621.00
30 Aug 2024107,980+19,1501.00
15 Aug 202488,830+33,7051.00
31 Jul 202455,125+12,0921.00
15 Jul 202443,033+39,6971.00
28 Jun 20243,336โˆ’52,5291.00
14 Jun 202455,865+22,1741.00
31 May 202433,691+19,1991.00
15 May 202414,492โˆ’8,8831.00
30 Apr 202423,375โˆ’38,3271.00
15 Apr 202461,702+32,3951.00
28 Mar 202429,307โˆ’117,9241.00
15 Mar 2024147,231+145,0951.00
29 Feb 20242,136โˆ’18,1071.00
15 Feb 202420,243โˆ’26,6331.00
31 Jan 202446,876โˆ’41,3891.00
12 Jan 202488,265+76,8291.00
29 Dec 202311,436โˆ’8,0441.00
15 Dec 202319,480โˆ’2,4071.00
30 Nov 202321,887+18,5431.00
15 Nov 20233,344สณโˆ’171,6531.00
31 Oct 2023174,997+107,0651.00
13 Oct 202367,932โˆ’3,899,9511.00
29 Sep 20233,967,883+3,929,7632.79
15 Sep 202338,120โˆ’8,4981.00
31 Aug 202346,618โˆ’257,2091.00
15 Aug 2023303,827+216,1732.12
31 Jul 202387,654โˆ’26,2911.00
14 Jul 2023113,945+38,9841.00
30 Jun 202374,961+11,3001.00
15 Jun 202363,661+49,2811.00
31 May 202314,380โˆ’14,2851.00
15 May 202328,665โˆ’151,6031.00
28 Apr 2023180,268+139,9641.63
14 Apr 202340,304โˆ’226,4521.00
31 Mar 2023266,756+215,7481.13
15 Mar 202351,008+12,6181.00
28 Feb 202338,390+4,5981.00
15 Feb 202333,792+25,2191.00
31 Jan 20238,573โˆ’5,3001.00
13 Jan 202313,873โˆ’319,4491.00
30 Dec 2022333,322+233,9111.42
15 Dec 202299,411+93,7241.00
30 Nov 20225,687โˆ’42,2631.00
15 Nov 202247,950โˆ’1,1351.00
31 Oct 202249,085+32,6921.00
14 Oct 202216,393โˆ’110,1621.00
30 Sep 2022126,555+106,1101.00
15 Sep 202220,445+8081.00
31 Aug 202219,637โˆ’45,7841.00
15 Aug 202265,421โˆ’73,8801.00
29 Jul 2022139,301+135,9601.01
15 Jul 20223,341โˆ’17,0121.00
30 Jun 202220,353โˆ’143,1841.00
15 Jun 2022163,537+134,6441.00
31 May 202228,893+8,9751.00
13 May 202219,918โˆ’3,2651.00
29 Apr 202223,183โˆ’5381.00
14 Apr 202223,721โˆ’4971.00
31 Mar 202224,218โˆ’714,6371.00
15 Mar 2022738,855+535,4363.99
28 Feb 2022203,419+32,6571.46
15 Feb 2022170,762+96,1561.00
31 Jan 202274,606+52,1001.00
14 Jan 202222,506+18,5561.00
31 Dec 20213,950โˆ’11,1351.00
15 Dec 202115,085+6,7461.00
30 Nov 20218,339โˆ’18,7581.00
15 Nov 202127,097โˆ’22,9721.00
29 Oct 202150,069+46,3101.00
15 Oct 20213,759โˆ’13,9381.00
30 Sep 202117,697โˆ’16,0721.00
15 Sep 202133,769+21,8721.00
31 Aug 202111,897+10,7971.00
13 Aug 20211,100โˆ’5,0761.00
30 Jul 20216,176โˆ’26,2001.00
15 Jul 202132,376+19,9281.00
30 Jun 202112,448+9,5071.00
15 Jun 20212,941+1,7381.00
28 May 20211,203โˆ’2,0331.00
14 May 20213,236โˆ’5,4071.00
30 Apr 20218,643โˆ’39,1851.00
15 Apr 202147,828+11,3941.33
31 Mar 202136,434+24,9561.00
15 Mar 202111,478+5,7871.00
26 Feb 20215,691โˆ’4,6501.00
12 Feb 202110,341โˆ’32,8181.00
29 Jan 202143,159+36,5871.00
15 Jan 20216,572โˆ’20,1061.00
31 Dec 202026,678+21,4791.00
15 Dec 20205,199โˆ’1,5061.00
30 Nov 20206,705โˆ’6,0441.00
13 Nov 202012,749โˆ’22,6211.00
30 Oct 202035,370+21,7281.00
15 Oct 202013,642โˆ’11,4781.00
30 Sep 202025,120+13,9071.00
15 Sep 202011,213+10,5451.00
31 Aug 2020668โˆ’3,4021.00
14 Aug 20204,070โˆ’6,2921.00
31 Jul 202010,362+3,7151.00
15 Jul 20206,647โˆ’38,2561.00
30 Jun 202044,903โˆ’94,9001.15
15 Jun 2020139,803+98,7322.00
29 May 202041,071โˆ’15,9891.00
15 May 202057,060+3,3571.00
30 Apr 202053,703+1,9381.75
15 Apr 202051,765+51,2171.00
31 Mar 2020548+4471.00
13 Mar 2020101โˆ’53,3151.00
28 Feb 202053,416+50,1231.44
14 Feb 20203,293โˆ’7121.00
31 Jan 20204,005โˆ’8,6591.00
15 Jan 202012,664+1,8261.00
31 Dec 201910,838+6,7931.00
13 Dec 20194,045โˆ’25,0991.00
29 Nov 201929,144+18,5542.34
15 Nov 201910,590+3,6291.00
31 Oct 20196,961+3,3881.00
15 Oct 20193,573โˆ’8,9061.00
30 Sep 201912,479โ€“1.00

Scroll inside the table for earlier settlements, back to 30 Sep 2019.

Questions

Frequently asked questions

What is SPBO's short interest?
158,399 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 22,059 from the previous settlement.
Why is there no percentage for SPBO?
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 SPBO's days to cover?
1.00 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.

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