Michigan pension filing disclosed $11.19 million in spot Ether products

The State of Michigan Retirement System’s quarterly securities filing, accepted by the U.S. Securities and Exchange Commission on November 4, 2024, disclosed two Grayscale products tied to spot Ether. The manager reported 460,000 shares of Grayscale Ethereum Trust, ticker ETHE, valued at $10,069,400, and 460,000 shares of Grayscale Ethereum Mini Trust, ticker ETH, valued at $1,122,400. Both positions were measured as of September 30, 2024.

Together, the two lines were worth $11,191,800. That sum is a calculation from the filing, not a figure separately stated by the retirement system. It mattered because the disclosure put a public-sector retirement manager into U.S.-listed spot Ether products only a little more than two months after ETHE and ETH began trading on NYSE Arca on July 23, 2024.

What changed in the public record

Michigan’s preceding Form 13F, covering June 30, 2024, contained no Grayscale entry. It did report 110,000 shares of the ARK 21Shares Bitcoin ETF, ticker ARKB, then valued at $6,597,800. The September 30 filing retained the same 110,000 ARKB shares at a quarter-end value of $6,981,700 and added the two Grayscale lines.

The comparison verifies that Ether-linked securities were new to Michigan’s reported 13F holdings between the two quarter ends. It does not establish when the exposure was acquired, what price was paid or whether all the shares resulted from open-market purchases.

That distinction is especially important here. Grayscale’s July launch involved distributing shares of the new, lower-fee Mini Trust to eligible ETHE holders. The matching 460,000-share counts therefore cannot, by themselves, prove that Michigan executed two separate purchases. Form 13F is a holdings snapshot, not a transaction ledger.

Size, measured carefully

The November 4 filing listed 950 positions with a total reported value of $20,165,853,102. On that denominator, the two Grayscale positions represented about 0.0555% of the disclosed 13F portfolio. Adding ARKB produced $18,173,500 of crypto-linked exchange-traded products, or about 0.0901% of the same reported total. Both percentages are Coinburn calculations using September 30 values.

Those ratios show why the filing was symbolically notable but financially modest within the disclosed securities book. The Ether products were worth more than the ARKB position at quarter end, yet all three together remained below one-tenth of 1% of reported 13F value.

The denominator has limits. A 13F table covers specified reportable securities and is not a complete statement of a pension system’s assets, liabilities or risk. It can omit bonds, private-market holdings, cash and other exposures. The filing also reports shares in trusts holding Ether, not Ether held directly by the retirement system.

Why the disclosure mattered

The development showed how newly available spot-crypto wrappers were moving into conventional institutional reporting channels. Michigan could obtain price exposure through exchange-listed securities while the trusts, rather than the pension manager, handled the underlying crypto custody and creation-redemption structure.

A contemporaneous report described Michigan as the first pension fund publicly identified with a spot Ether ETP position after the July launches. The SEC filing directly proves Michigan’s holdings, but it does not contain a census of pension investors; the “first” characterization should therefore be treated as contemporaneous reporting, not as a conclusion established by the filing itself.

The strongest event-day interpretation is narrower: by September 30, 2024, a U.S. state retirement manager had disclosed $11.19 million in two spot Ether products, alongside an unchanged 110,000-share Bitcoin ETF position. On November 4, the filing made that allocation visible, providing a concrete institutional-adoption marker without revealing the manager’s strategy, trading path or future intent.