Spinoff Tracker

Every US corporate spin-off, sourced from the filing that proves it.

DTE ENERGY CO DTE → DT Midstream, Inc. DTM

Distribution2021-07-01
Return+201.69%
ParentDTE ENERGY CO DTE
SpincoDT Midstream, Inc. DTM
StatusCompleted
StructureSpin-off A filing states a pro-rata distribution: holders receive shares automatically.
FocusFocus-increasing Parent and spinco operate in different industries — the class the research associates with stronger post-separation returns.
Ratio1 DT Midstream share for every 2 DTE Energy shares
Checked against EDGAR2026-08-22

Data trap

DTE Energy did not restate for the separation until the third quarter of 2021, and said so explicitly: results through June 30, 2021 still include DT Midstream. Any DTE revenue, earnings or segment figure from a filing before that restatement is a combined-company number. Separately, DT Midstream took on 2.1 billion dollars of senior notes and a 1.0 billion dollar term loan in June 2021 and paid DTE a 501 million dollar dividend before separating, so its pre-spin balance sheet does not describe the company that began trading.

The restated filings have landed; this is kept as history.

Catalyst clock

  1. 2020-10-27Separation announced
  2. 2021-05-07Form 10 filed
  3. 2021-05-26Form 10 last amended
  4. 2021-06-04Form 10 effective
  5. 2021-06-18Record date
  6. 2021-06-17When-issued trading opens
  7. 2021-07-01Distribution
  8. 2021-08-06First standalone earnings
  9. Index inclusion announced

Performance since separation

DT Midstream, Inc. since separation+201.69%
DTE ENERGY CO over the same window+20.86%
S&P 500 (SPY) over the same window+77.90%
Russell 2000 (IWM) over the same window+29.63%
Excess over the S&P 500+123.79%
Excess over the Russell 2000+172.06%

Measured from the first regular-way close on or after the distribution — 2021-07-01 at 42.02 — to 2026-08-21 at 126.77. Window: 5.1 years. Two benchmarks, because one is misleading: spin-offs are usually small companies, and across this period small caps lagged the S&P by several points a year on their own. Measured against the S&P alone, roughly a third of any shortfall is company size rather than the separation. Returns are arithmetic over end-of-day closing prices. Unlike every other figure on this page, they do not come from a filing.

Pre-distribution investor return

Parent, announcement to separationprice history starts after the separation
Combined (DTE ENERGY CO + DT Midstream, Inc.), pre-distribution to now+80.11%
Combined excess over the S&P 500+1.23%
Combined excess over the Russell 2000+49.33%

Combined treats a pre-spin holding as 1 DT Midstream share for every 2 DTE Energy shares valued at the parent's last close before regular post-spin trading resumed — 2021-06-30 at 110.27 — against that same basket today. That baseline is a practical proxy, not an attempt to isolate exactly how much value the separation transferred: for a large parent and a small spinco, ordinary day-to-day price noise can be bigger than the transfer itself.

Filings

Every fact on this page comes from one of these.

Notes

DTE Energy's separation of its non-utility natural gas pipeline, storage and gathering business, distributing all of DT Midstream. Classified focus-increasing: the parent becomes a pure regulated electric utility and the spinco a midstream operator, businesses with different customers, different regulation and different risk, even though both sit in the two-digit SIC 49 utilities bucket.