Fixed Income ETF Short Interest

Author:

Ihor Dusaniwsky

Managing Director of Predictive Analytics

April 9, 2025

The 10 Year treasury bond yield had fallen to 3.99% on April 4th from a recent high of 4.79% on January 14th, but on Monday we saw yields jump back up over the 4% threshold and are now at 4.4% levels. Fixed Income ETF short sellers have been active this year due to this volatility with most of the short side exposure residing in the top ten most shorted ETFs, 73% of the $46.9 billion of Fixed Income short interest are in the top ten most shorted ETFs.

Fixed Income ETF Short Interest

Ticker

SI % Float

Short Interest

iShares 20+ Year Treasury Bond

TLT US

18.77%

$9,442,219,315

iShares iBoxx $ High Yield Cor

HYG US

52.18%

$8,223,017,310

iShares iBoxx $ Investment Gra

LQD US

18.98%

$5,742,923,392

iShares 1-3 Year Treasury Bond

SHY US

9.90%

$2,272,586,056

iShares J.P. Morgan USD Emergi

EMB US

13.52%

$1,792,384,824

iShares Core U.S. Aggregate Bo

AGG US

1.25%

$1,544,642,301

iShares Broad USD High Yield C

USHY US

7.50%

$1,422,729,434

iShares U.S. Treasury Bond ETF

GOVT US

4.97%

$1,317,554,841

iShares 7-10 Year Treasury Bon

IEF US

3.32%

$1,173,527,353

Vanguard Intermediate-Term Cor

VCIT US

2.29%

$1,169,336,579

Invesco Senior Loan ETF

BKLN US

10.47%

$795,404,342

iShares National Muni Bond ETF

MUB US

1.99%

$774,438,853

SPDR Portfolio High Yield Bond

SPHY US

8.93%

$738,569,127

SPDR Bloomberg High Yield Bond

JNK US

9.32%

$680,015,808

Vanguard Short-Term Corporate

VCSH US

1.46%

$500,547,350

Vanguard Long-Term Corporate B

VCLT US

3.36%

$458,234,207

Vanguard Tax-Exempt Bond Index

VTEB US

1.23%

$439,844,472

SPDR Blackstone Senior Loan ET

SRLN US

5.98%

$430,079,132

SPDR Bloomberg 1-3 Month T-Bil

BIL US

0.94%

$406,999,761

SPDR Portfolio Intermediate Te

SPIB US

3.45%

$331,193,321

Total Sector

17.69%

$46,933,804,810

In 2025 we have seen Fixed Income ETF short interest increase by $8.6 billion, which consisted of $8.8 billion of increased short selling partially offset by a $192 million decrease in the mark-to-market value of ETFs shorted.

Fixed Income ETF Short Interest

Ticker

YTD Change

YTD Shares Shorted

YTD Ch MTM

iShares 20+ Year Treasury Bond

TLT US

$1,753,899,843

$1,556,875,711

$197,024,132

iShares iBoxx $ High Yield Cor

HYG US

$1,654,565,847

$1,868,336,960

($213,771,113)

iShares iBoxx $ Investment Gra

LQD US

$826,740,412

$847,394,715

($20,654,302)

iShares 1-3 Year Treasury Bond

SHY US

($191,368,407)

($214,224,570)

$22,856,162

iShares J.P. Morgan USD Emergi

EMB US

$169,377,927

$206,673,792

($37,295,865)

iShares Core U.S. Aggregate Bo

AGG US

($203,876,782)

($225,143,042)

$21,266,260

iShares Broad USD High Yield C

USHY US

$67,960,864

$118,792,311

($50,831,447)

iShares U.S. Treasury Bond ETF

GOVT US

$1,267,994,971

$1,266,947,544

$1,047,428

iShares 7-10 Year Treasury Bon

IEF US

$579,888,540

$562,006,308

$17,882,232

Vanguard Intermediate-Term Cor

VCIT US

($199,722,854)

($202,616,552)

$2,893,698

Invesco Senior Loan ETF

BKLN US

$379,903,718

$397,883,060

($17,979,342)

iShares National Muni Bond ETF

MUB US

$136,429,124

$152,951,050

($16,521,926)

SPDR Portfolio High Yield Bond

SPHY US

$506,311,274

$515,514,504

($9,203,230)

SPDR Bloomberg High Yield Bond

JNK US

$89,521,118

$113,514,409

($23,993,291)

Vanguard Short-Term Corporate

VCSH US

$71,425,261

$69,885,020

$1,540,241

Vanguard Long-Term Corporate B

VCLT US

$116,417,018

$121,606,412

($5,189,394)

Vanguard Tax-Exempt Bond Index

VTEB US

$131,963,843

$139,944,796

($7,980,953)

SPDR Blackstone Senior Loan ET

SRLN US

$191,372,277

$204,137,656

($12,765,379)

SPDR Bloomberg 1-3 Month T-Bil

BIL US

$80,935,080

$80,649,716

$285,365

SPDR Portfolio Intermediate Te

SPIB US

$269,265,799

$269,114,710

$151,089

Total Sector

$8,574,290,105

$8,766,258,983

($191,968,878)

More than a third of the full-year increased short selling we saw in Fixed Income ETFs occurred over the last thirty days. Overall short interest increased by $2.6 billion, which consisted of $3.3 billion of increased short selling partially offset by a $781 million decrease in the mark-to-market value of ETFs shorted.

Fixed Income ETF Short Interest

Ticker

30D Change

30D Shares Shorted

30D Ch MTM

iShares 20+ Year Treasury Bond

TLT US

($640,887,478)

($634,173,613)

($6,713,865)

iShares iBoxx $ High Yield Cor

HYG US

$341,440,894

$673,766,646

($332,325,752)

iShares iBoxx $ Investment Gra

LQD US

$381,426,983

$463,591,717

($82,164,734)

iShares 1-3 Year Treasury Bond

SHY US

$2,449,128

($6,093,509)

$8,542,637

iShares J.P. Morgan USD Emergi

EMB US

$111,979,957

$182,712,462

($70,732,505)

iShares Core U.S. Aggregate Bo

AGG US

$332,032,337

$333,881,768

($1,849,431)

iShares Broad USD High Yield C

USHY US

($331,170,024)

($251,253,872)

($79,916,152)

iShares U.S. Treasury Bond ETF

GOVT US

$636,415,899

$632,085,044

$4,330,855

iShares 7-10 Year Treasury Bon

IEF US

$114,297,875

$102,851,598

$11,446,277

Vanguard Intermediate-Term Cor

VCIT US

($19,940,056)

($9,265,373)

($10,674,683)

Invesco Senior Loan ETF

BKLN US

$236,135,035

$257,007,287

($20,872,252)

iShares National Muni Bond ETF

MUB US

$119,112,762

$135,063,279

($15,950,518)

SPDR Portfolio High Yield Bond

SPHY US

$208,661,305

$232,676,611

($24,015,306)

SPDR Bloomberg High Yield Bond

JNK US

$34,047,619

$64,292,722

($30,245,103)

Vanguard Short-Term Corporate

VCSH US

$7,934,909

$9,752,898

($1,817,989)

Vanguard Long-Term Corporate B

VCLT US

($50,483,358)

($37,022,032)

($13,461,326)

Vanguard Tax-Exempt Bond Index

VTEB US

$81,530,183

$90,260,829

($8,730,646)

SPDR Blackstone Senior Loan ET

SRLN US

$95,804,861

$110,848,416

($15,043,555)

SPDR Bloomberg 1-3 Month T-Bil

BIL US

$57,099,837

$57,176,310

($76,472)

SPDR Portfolio Intermediate Te

SPIB US

$45,860,888

$47,672,248

($1,811,361)

Total Sector

$2,550,657,548

$3,331,180,515

($780,522,968)

Fixed Income ETF short sellers were down for the first quarter of the year, down -$793 million in mark-to-market losses or -1.88%. But they are up +$1.33 billion in mark-to-market profits or +2.88% so far in April. Fixed Income ETF shorts are now up +$538 million in mark-to-market profits for the year, +1.27%.

Mark-To-Market P\L

Ticker

MTD MTM P\L

P\L %

YTD MTM P\L

P\L %

iShares 20+ Year Treasury Bond

TLT US

$296,435,338

3.18%

($121,117,505)

-1.29%

iShares iBoxx $ High Yield Cor

HYG US

$356,045,566

4.34%

$304,193,804

4.04%

iShares iBoxx $ Investment Gra

LQD US

$183,564,397

3.26%

$95,969,653

1.91%

iShares 1-3 Year Treasury Bond

SHY US

$204,752

0.01%

($22,440,205)

-0.97%

iShares J.P. Morgan USD Emergi

EMB US

$81,372,564

4.51%

$35,414,252

1.97%

iShares Core U.S. Aggregate Bo

AGG US

$16,847,805

1.11%

($5,815,642)

-0.46%

iShares Broad USD High Yield C

USHY US

$63,809,203

4.54%

$59,985,726

3.34%

iShares U.S. Treasury Bond ETF

GOVT US

$5,947,507

0.46%

$38,049

0.01%

iShares 7-10 Year Treasury Bon

IEF US

$6,781,791

0.58%

($21,460,822)

-2.59%

Vanguard Intermediate-Term Cor

VCIT US

$25,429,498

2.32%

($2,484,254)

-0.19%

Invesco Senior Loan ETF

BKLN US

$20,335,360

2.50%

$28,283,531

5.98%

iShares National Muni Bond ETF

MUB US

$20,158,853

2.67%

$19,757,537

3.13%

SPDR Portfolio High Yield Bond

SPHY US

$35,343,144

4.89%

$38,802,738

10.27%

SPDR Bloomberg High Yield Bond

JNK US

$31,381,421

4.68%

$30,753,698

5.03%

Vanguard Short-Term Corporate

VCSH US

$4,761,049

0.92%

($482,563)

-0.10%

Vanguard Long-Term Corporate B

VCLT US

$22,341,374

5.31%

$11,260,807

2.13%

Vanguard Tax-Exempt Bond Index

VTEB US

$11,130,523

2.52%

$12,508,526

3.74%

SPDR Blackstone Senior Loan ET

SRLN US

$15,239,390

3.59%

$18,739,173

6.61%

SPDR Bloomberg 1-3 Month T-Bil

BIL US

$646,095

0.16%

($475,345)

-0.13%

SPDR Portfolio Intermediate Te

SPIB US

$5,055,589

1.53%

$2,967,727

1.75%

Total Sector

$1,330,943,707

2.88%

$537,846,779

1.27%

Trading Fixed Income ETFs can be used as a proxy for holding outright bonds or as a portfolio hedge against interest rate fluctuations. The recent reversal in rates has made the hedging aspect of these ETFs more attractive and we should see short selling in the corporates and short covering in the treasuries continue as rates continue to reverse their year-long downward trend.

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The information herein (some of which has been obtained from third party sources without verification) is believed by S3 Partners, LLC (“S3 Partners”) to be reliable and accurate. Neither S3 Partners nor any of its affiliates makes any representation as to the accuracy or completeness of the information herein or accepts liability arising from its use. Prior to making any decisions based on the information herein, you should determine, without reliance upon S3 Partners, the economic risks, and merits, as well as the legal, tax, accounting, and investment consequences, of such decisions.

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