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CMS Energy Corp

CMS
Exchange
NYSE
Industry
Electric & Other Services Combined
SEC CIK
0000811156

No open-market purchases or sales by CMS Energy Corp insiders were filed in the last 90 days; 824 institutions reported holding it in 13F filings for Q2 2026, worth $24.2B in total; Soros Fund Management is the only superinvestor holding it.

Other share classesCMSACMSCCMSDCMS.PC

Four kinds of short-selling data, each measuring something different:

  • Short interest: shares sold short and not yet bought back, as of a settlement date. FINRA publishes it twice a month, about eight business days after the settlement date.
  • Daily short volume: shares sold short each day in off-exchange trades reported to FINRA. It counts trades, not open positions, and is published the next day.
  • Fails-to-deliver: shares not delivered by the settlement date. The SEC publishes them twice a month, about two weeks late.
  • ATS (dark pool) volume: weekly volume on alternative trading systems and other off-exchange venues. FINRA publishes it two to four weeks after the week.

More in the glossary.

Short interest

Shares sold short and not yet bought back, from FINRA, on every settlement date in the last two years.

Short interest
18.3M
Shares, settlement Oct 15, 2026
Change
+941.6K
+5.4% vs. Sep 30, 2026
Days to cover
4.43
Short interest ÷ average daily volume
Average daily volume
4.13M
Shares, as reported by FINRA
Short interest by settlement date
Oct 15, 2024: 9,151,886 sharesOct 31, 2024: 8,467,803 sharesNov 15, 2024: 8,007,484 sharesNov 29, 2024: 7,929,248 sharesDec 13, 2024: 7,550,844 sharesDec 31, 2024: 7,471,115 sharesJan 15, 2025: 8,632,523 sharesJan 31, 2025: 9,275,835 sharesFeb 14, 2025: 8,782,735 sharesFeb 28, 2025: 8,993,944 sharesMar 14, 2025: 7,808,082 sharesMar 31, 2025: 7,341,029 sharesApr 15, 2025: 8,075,558 sharesApr 30, 2025: 7,467,676 sharesMay 15, 2025: 8,900,164 sharesMay 30, 2025: 8,252,111 sharesJun 13, 2025: 10,648,811 sharesJun 30, 2025: 11,614,758 sharesJul 15, 2025: 11,829,519 sharesJul 31, 2025: 10,238,913 sharesAug 15, 2025: 11,913,420 sharesAug 29, 2025: 12,640,586 sharesSep 15, 2025: 12,593,231 sharesSep 30, 2025: 11,573,050 sharesOct 15, 2025: 12,501,805 sharesOct 31, 2025: 9,438,939 sharesNov 14, 2025: 11,889,699 sharesNov 28, 2025: 13,020,325 sharesDec 15, 2025: 12,024,262 sharesDec 31, 2025: 12,167,172 sharesJan 15, 2026: 13,038,624 sharesJan 30, 2026: 14,406,523 sharesFeb 13, 2026: 14,623,721 sharesFeb 27, 2026: 15,512,023 sharesMar 13, 2026: 16,116,221 sharesMar 31, 2026: 16,458,175 sharesApr 15, 2026: 16,248,337 sharesApr 30, 2026: 16,013,042 sharesMay 15, 2026: 14,090,627 sharesMay 29, 2026: 15,120,545 sharesJun 15, 2026: 16,673,789 sharesJun 30, 2026: 20,783,480 sharesJul 15, 2026: 20,375,115 sharesJul 31, 2026: 16,591,680 sharesAug 14, 2026: 16,365,188 sharesAug 31, 2026: 15,738,780 sharesSep 15, 2026: 16,354,988 sharesSep 30, 2026: 17,334,557 sharesOct 15, 2026: 18,276,124 shares
Short interest in CMS by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 15, 202618.3M+941.6K+5.4%4.13M4.43
Sep 30, 202617.3M+979.6K+6.0%4.26M4.07
Sep 15, 202616.4M+616.2K+3.9%2.93M5.58
Aug 31, 202615.7M−626.4K−3.8%3.28M4.81
Aug 14, 202616.4M−226.5K−1.4%3.86M4.24
Jul 31, 202616.6M−3.78M−18.6%4.10M4.05
Jul 15, 202620.4M−408.4K−2.0%2.88M7.07
Jun 30, 202620.8M+4.11M+24.7%3.56M5.84
Jun 15, 202616.7M+1.55M+10.3%4.14M4.03
May 29, 202615.1M+1.03M+7.3%2.72M5.56
May 15, 202614.1M−1.92M−12.0%2.54M5.55
Apr 30, 202616.0M−235.3K−1.5%3.20M5.01
Apr 15, 202616.2M−209.8K−1.3%2.65M6.13
Mar 31, 202616.5M+342.0K+2.1%2.72M6.05
Mar 13, 202616.1M+604.2K+3.9%2.72M5.93
Feb 27, 202615.5M+888.3K+6.1%3.77M4.11
Feb 13, 202614.6M+217.2K+1.5%3.56M4.11
Jan 30, 202614.4M+1.37M+10.5%3.31M4.35
Jan 15, 202613.0M+871.5K+7.2%2.78M4.69
Dec 31, 202512.2M+142.9K+1.2%2.12M5.74
Dec 15, 202512.0M−996.1K−7.7%2.00M6.00
Nov 28, 202513.0M+1.13M+9.5%2.10M6.20
Nov 14, 202511.9M+2.45M+26.0%3.28M3.62
Oct 31, 20259.44M−3.06M−24.5%2.35M4.02
Oct 15, 202512.5M+928.8K+8.0%2.24M5.58
Sep 30, 202511.6M−1.02M−8.1%2.63M4.40
Sep 15, 202512.6M−47.4K−0.4%1.82M6.90
Aug 29, 202512.6M+727.2K+6.1%2.07M6.12
Aug 15, 202511.9M+1.67M+16.4%2.41M4.95
Jul 31, 202510.2M−1.59M−13.5%2.09M4.89
Jul 15, 202511.8M+214.8K+1.9%2.10M5.64
Jun 30, 202511.6M+965.9K+9.1%2.55M4.56
Jun 13, 202510.6M+2.40M+29.0%2.75M3.88
May 30, 20258.25M−648.1K−7.3%2.01M4.11
May 15, 20258.90M+1.43M+19.2%2.54M3.51
Apr 30, 20257.47M−607.9K−7.5%3.61M2.07
Apr 15, 20258.08M+734.5K+10.0%3.20M2.53
Mar 31, 20257.34M−467.1K−6.0%2.55M2.88
Mar 14, 20257.81M−1.19M−13.2%2.44M3.20
Feb 28, 20258.99M+211.2K+2.4%2.38M3.77
Feb 14, 20258.78M−493.1K−5.3%2.41M3.64
Jan 31, 20259.28M+643.3K+7.5%2.51M3.70
Jan 15, 20258.63M+1.16M+15.6%1.68M5.15
Dec 31, 20247.47M−79.7K−1.1%2.04M3.67
Dec 13, 20247.55M−378.4K−4.8%2.47M3.06
Nov 29, 20247.93M−78.2K−1.0%1.99M3.98
Nov 15, 20248.01M−460.3K−5.4%2.75M2.91
Oct 31, 20248.47M−684.1K−7.5%1.60M5.30
Oct 15, 20249.15M−495.8K−5.1%2.01M4.55

Fails-to-deliver

Shares that weren't delivered by the settlement date, from the SEC, for the last 30 dates with fails. The price is the previous day's closing price published by the SEC.

Fails-to-deliver in CMS by settlement date
Settlement dateSharesPriceValue
Oct 9, 20267$65.34$457.38
Oct 2, 202640$63.64$2.55K
Sep 8, 2026108$68.46$7.39K
Sep 3, 20262$68.06$136.12
Aug 28, 20262,061$68.35$140.9K
Aug 25, 2026523$68.42$35.8K
Aug 24, 20266$68.27$409.62
Aug 17, 2026183$71.11$13.0K
Aug 12, 2026130$69.62$9.05K
Aug 6, 20262,682$71.59$192.0K
Aug 4, 20262,521$71.74$180.9K
Jul 30, 20262,699$74.36$200.7K
Jul 27, 2026220$74.70$16.4K
Jul 22, 2026855$72.50$62.0K
Jul 16, 2026268$74.02$19.8K
Jul 10, 2026369$75.00$27.7K
Jul 7, 20268,221$76.29$627.2K
Jun 30, 202681,050$77.93$6.32M
Jun 22, 2026109$73.38$8.00K
Jun 12, 20261,580$72.85$115.1K
Jun 11, 2026451$73.46$33.1K
Jun 8, 20263,195$72.04$230.2K
Jun 3, 202641$71.85$2.95K
Jun 1, 2026148,258$72.57$10.8M
May 19, 20261,616$72.13$116.6K
May 18, 20264,187$71.64$300.0K
May 13, 202641,866$73.31$3.07M
May 12, 20265,630$73.19$412.1K
May 8, 2026371$73.96$27.4K
May 7, 202610,536$74.05$780.2K

Daily short volume

Off-exchange short-sale volume, not short interest: shares sold short each day in trades reported to FINRA, for the last 30 trading days.

The short volume ratio isn't a sentiment gauge: market makers sell short to fill buy orders and to hedge, so short sales are usually about half of off-exchange volume.

Off-exchange short volume in CMS by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 9, 2026551,497591866,50063.6%
Nov 6, 2026599,8244031,045,66557.4%
Nov 5, 20261,188,12411,4101,648,25672.1%
Nov 4, 20261,091,0139451,429,32376.3%
Nov 3, 2026758,1401211,006,71575.3%
Nov 2, 2026771,1922,0871,040,07974.1%
Oct 30, 20261,324,9621,2141,586,23983.5%
Oct 29, 20261,687,46913,4702,031,65583.1%
Oct 28, 2026888,0381881,131,55678.5%
Oct 27, 20261,522,7731,5711,832,03683.1%
Oct 26, 2026966,15914,5921,416,84768.2%
Oct 23, 2026699,8962561,049,39266.7%
Oct 22, 2026628,0986681,209,79051.9%
Oct 21, 2026376,7822,193911,96641.3%
Oct 20, 2026764,3708191,263,37760.5%
Oct 19, 2026892,2928971,247,11371.5%
Oct 16, 20262,168,33411,6292,931,11274.0%
Oct 15, 20261,170,9321,0602,004,85558.4%
Oct 14, 2026724,9513,4741,425,29950.9%
Oct 13, 2026711,0006,5911,271,36155.9%
Oct 12, 2026822,9924991,043,20978.9%
Oct 9, 2026473,1951,051774,47861.1%
Oct 8, 2026558,98927,533864,51064.7%
Oct 7, 2026614,708671,353,43645.4%
Oct 6, 2026878,1751591,291,09468.0%
Oct 5, 20261,012,2582,1431,781,19456.8%
Oct 2, 2026894,9922,8871,501,93359.6%
Oct 1, 20261,021,7961,2881,754,87958.2%
Sep 30, 2026841,0025821,360,96061.8%
Sep 29, 2026839,275512,280,38636.8%

ATS (dark pool) volume

Weekly volume on alternative trading systems (ATS) and other off-exchange (OTC) venues, from FINRA, for the last 12 weeks. ATS share is ATS volume ÷ (ATS + OTC volume), not a share of all trading.

Weekly ATS and OTC volume in CMS
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 19, 2026T14,235,58672,3642,503,65623,20662.8%
Oct 12, 2026T14,507,31473,1744,773,11228,10448.6%
Oct 5, 2026T13,827,61068,1413,166,64622,22654.7%
Sep 28, 2026T15,169,77689,9464,070,09629,63456.0%
Sep 21, 2026T14,888,13680,0183,348,01826,66359.3%
Sep 14, 2026T13,047,87070,0033,891,45025,35343.9%
Sep 7, 2026T12,546,85053,0443,159,98518,76644.6%
Aug 31, 2026T13,154,90170,2032,343,84422,28957.4%
Aug 24, 2026T12,865,17262,3142,679,26519,60051.7%
Aug 17, 2026T13,802,09674,2894,266,25120,97347.1%
Aug 10, 2026T15,602,35986,4173,474,78720,88761.7%
Aug 3, 2026T13,339,86373,3046,577,43922,21033.7%