- CME ether futures open interest reached a record level as large reportable holders also rose.
- Tom Lee’s BitMine outlined a plan to target 5% of ETH supply, adding to institutional accumulation.
The dollar value of open positions in ether futures at the Chicago Mercantile Exchange has reached a record high, underscoring a renewed build-up of institutional exposure via regulated derivatives.
CME open interest rises to a new peak as large reportable holders increase
Open interest on CME ether futures has climbed to its highest level on record, with the exchange also reporting a rise in the number of large open interest holders.
That cohort reflects institutions and professional traders that exceed the exchange’s reportable thresholds and often operate basis strategies that pair futures with spot holdings. The expansion suggests hedging and carry activity has intensified alongside increased participation from asset managers and proprietary trading firms.
The CME contracts offer two principal sizes that cater to different players. Standard ether futures are sized at 50 ETH per contract, while micro ether futures are sized at 0.1 ETH.
The growing share of activity in micro contracts indicates more granular risk management by funds and treasury desks that are calibrating exposure amid higher price volatility.
🚨 EXCLUSIVE INTERVIEW: “ETH TO $60K, BITCOIN TO $1M, AND STABLECOINS WILL FUND THE U.S. GOVERNMENT”
He called Bitcoin at $25K in 2017 – and was laughed at.
Fundstrat’s Tom Lee is one of the most followed macro minds in crypto, with deep ties to Wall Street, CNBC, and the… https://t.co/qCMRNJOO5L pic.twitter.com/O69zc63ufH
— Mario Nawfal (@MarioNawfal) August 27, 2025
The record in notional open interest coincides with continued inflows to US spot ether exchange-traded funds this month, which in turn create additional demand for delta hedges and liquidity provisioning in listed derivatives.
Market structure analysts note that elevated open interest does not indicate directional positioning in itself. It points to larger gross exposures that can encompass short hedges against spot or ETF inventory, calendar spreads to capture term structure moves, and options-linked strategies that reference futures as underlyings.
With ether’s price near recent highs, the term structure has remained in contango, supporting cash-and-carry trades that typically lift futures open interest on regulated venues.
Tom Lee’s BitMine outlines plan to acquire 5% of circulating ETH
Separately, BitMine, chaired by Fundstrat’s Tom Lee, has outlined a multi-phase plan to acquire 5 percent of ether’s circulating supply.
Tom Lee as it stands needs to buy ~4.3m ETH to achieve 5% of supply while already reporting 1.7m ETH.
At current price he needs to spend another $19.5B and at around $4200 it’s closer to $18.2B.
Total ETH daily volume estimated $30-50B.
Of course it’s going to be massively…
— CryptoISO (@crypto_iso) August 28, 2025
That target equates to roughly six million ETH based on current circulation and would require ongoing purchases in the open market as well as negotiated block transactions with existing large holders.
The company has disclosed recent treasury additions and indicated it will continue to pursue capital raises to fund further accumulation.
The 5 percent target intersects with derivatives market dynamics because large treasuries often employ futures to manage inventory risk and financing costs. As corporate and fund treasuries add ether, CME futures can serve as hedging tools against drawdowns, or as instruments to lock in basis spreads when raising or deploying capital.
The combination of rising ETF flows, corporate treasury adoption and an active basis environment has supported liquidity growth on the regulated exchange.
Traders will watch the coming weeks for shifts in the distribution of positions across maturities and any changes in the number of large open interest holders. A sustained high level of notional open interest would indicate durable participation from institutions using regulated channels to manage and accumulate ether exposure.
At the time of press, Ethereum (ETH) is trading at $4 610.67, marking an exact +0.82 % gain over the past 24 hours, with a daily low of $4 470.65 and high of $4 659.99.
